Add Tesla

DESIGN.md

@@ -1,288 +1,286 @@
-# Design System Inspired by Lamborghini
+# Design System Inspired by Tesla
 
 ## 1. Visual Theme & Atmosphere
 
-Lamborghini's website is a cathedral of darkness — a digital stage where jet-black surfaces stretch infinitely and every element emerges from the void like a machine under a spotlight. The page is almost entirely black. Not dark gray, not near-black — true, uncompromising black (`#000000`) that saturates the viewport and refuses to yield. Into this abyss, white type and Lamborghini Gold (`#FFC000`) are deployed with surgical precision, creating a visual language that feels like walking through a nighttime motorsport event where every surface absorbs light except the things that matter.
+Tesla's website is an exercise in radical subtraction — a digital showroom where the product is everything and the interface is almost nothing. The page opens with a full-viewport hero that fills the entire screen with cinematic car photography: three vehicles arranged on polished concrete against a hazy cityscape sky, with a single model name floating above in translucent white type. There are no decorative borders, no gradients, no patterns, no shadows. The UI exists only to provide just enough navigational structure to get out of the way. Every pixel that isn't product imagery is white space, and that restraint is the design system's most powerful statement.
 
-The hero is a full-viewport video — dark, cinematic, immersive — showing event footage or vehicle reveals with the Lamborghini bull logo floating ethereally above. The navigation is minimal: a centered bull logo, a "MENU" hamburger on the left, and search/bookmark icons on the right, all rendered in white against the black canvas. There are no borders, no visible nav containers, no background color on the header — just white marks floating in darkness. The overall mood is nocturnal luxury: exclusive, theatrical, and deliberately intimidating. Each section transition is a scroll through darkness into the next revelation.
+The color philosophy is almost ascetic: a single blue (`#3E6AE1`) for primary calls to action, three shades of dark gray for text hierarchy, and white for everything else. The entire emotional weight is carried by photography — sprawling landscape shots, studio-lit vehicle profiles, and atmospheric environmental compositions that stretch edge-to-edge across each viewport-height section. The UI chrome dissolves into the imagery. The navigation bar floats above the hero with no visible background, border, or shadow — the TESLA wordmark and five navigation labels simply exist in the space, trusting the content beneath them to provide sufficient contrast.
 
-Typography is the voice of this darkness. LamboType — a custom Neo-Grotesk typeface created by Character Type and design agency Strichpunkt — is used for everything from 120px uppercase display headlines to 10px micro labels. Its distinctive 12° angled terminals are inspired by the aerodynamic lines of Lamborghini's super sports cars, and its proportions range from Normal to Ultracompressed width. Headlines SHOUT in uppercase at enormous scales with tight line-heights (0.92 at 120px), creating dense blocks of text that feel stamped from steel. The typeface carries hexagonal geometric DNA — constructed from hexagons, three-armed stars, and circles — that echoes throughout the interface in the hexagonal pause button and UI icons. Built on Bootstrap grid with 68 Element Plus/UI components, the technical infrastructure is substantial beneath the theatrical surface.
+Typography recently transitioned from Gotham to Universal Sans — a custom family split into "Display" for headlines and "Text" for body/UI elements — unifying the website, mobile app, and in-car software into a single typographic voice. The Display variant renders hero titles at 40px weight 500, while the Text variant handles everything from navigation (14px/500) to body copy (14px/400). The font carries a geometric precision with slightly humanist terminals that feels engineered rather than designed — exactly matching Tesla's brand identity of technology that doesn't need to announce itself. There are no text shadows, no text gradients, no decorative type treatments. Every letterform earns its place through clarity alone.
 
 **Key Characteristics:**
-- True black (`#000000`) dominant surfaces with white and gold as the only relief colors
-- LamboType custom Neo-Grotesk font with 12° angled terminals inspired by aerodynamic car lines
-- Lamborghini Gold (`#FFC000`) as the sole accent color — used exclusively for primary CTA buttons
-- All-uppercase display typography at extreme scales (120px, 80px, 54px) with tight line-heights
-- Full-viewport video heroes with cinematic event/vehicle content
-- Zero border-radius on buttons — sharp, angular, uncompromising rectangles
-- Hexagonal motifs in UI elements (pause button, icon system) echoing brand geometry
-- Bootstrap grid system + Element Plus/UI 68 components underneath
-- Transparent ghost buttons with white borders at 50% opacity as the secondary CTA pattern
+- Full-viewport hero sections (100vh) dominated by cinematic car photography with minimal overlay UI
+- Near-zero UI decoration: no shadows, no gradients, no borders, no patterns anywhere on the page
+- Single accent color — Electric Blue (`#3E6AE1`) — used exclusively for primary CTA buttons
+- Universal Sans font family (Display + Text) unifying web, app, and in-car interfaces
+- Photography-first presentation where product imagery carries all emotional weight
+- Frosted-glass navigation concept with transparent/white nav that floats over hero content
+- 0.33s cubic-bezier transitions as the universal timing for all interactive state changes
+- Carousel-driven hero with dot indicators and edge arrow navigation for multiple vehicle showcases
+- "Ask a Question" persistent chatbot bar anchored to the viewport bottom
 
 ## 2. Color Palette & Roles
 
 ### Primary
-- **Lamborghini Gold** (`#FFC000`): The signature accent color — a warm, saturated amber-gold (rgb 255, 192, 0) used exclusively for primary action buttons ("Discover More", "Tickets", "Start Configuration"). The only chromatic color in the entire interface, it ignites against the black canvas like a headlight cutting through night
-- **Pure White** (`#FFFFFF`): Primary text color on dark surfaces, logo rendering, nav elements, and light-mode button fills — the voice that speaks from the darkness
+- **Electric Blue** (`#3E6AE1`): Primary CTA button background — a confident, mid-saturation blue (rgb 62, 106, 225) that stands alone as the only chromatic color in the entire interface. Used exclusively for "Order Now" and other primary action buttons
+- **Pure White** (`#FFFFFF`): Dominant background color for all surfaces, panels, navigation, and secondary button fills — the canvas that lets photography breathe
 
 ### Secondary & Accent
-- **Dark Gold** (`#917300`): Hover/pressed state for gold buttons — a deep amber (rgb 145, 115, 0) that darkens the gold to signal interaction
-- **Gold Text** (`#FFCE3E`): Slightly lighter gold variant (rgb 255, 206, 62) used for inline text accents and highlighted labels
-- **Cyan Pulse** (`#29ABE2`): Electric blue-cyan (rgb 41, 171, 226) appearing as an informational accent and interactive element highlight
-- **Link Blue** (`#3860BE`): Medium blue (rgb 56, 96, 190) used universally for link hover states across all text colors
+- **Promo Blue** (`#3E6AE1`): Blue also serves for promotional text ("0% APR Available") displayed over hero imagery in the same hue as the CTA — creating a visual link between incentive messaging and action
+- No secondary accent colors exist. Tesla deliberately avoids color variety to maintain extreme visual discipline
 
 ### Surface & Background
-- **Absolute Black** (`#000000`): The dominant surface color — used for page background, hero sections, header, footer, and most containers
-- **Charcoal** (`#202020`): Elevated dark surface (rgb 32, 32, 32) — the primary "dark gray" for cards, panels, and text containers sitting above the black canvas
-- **Dark Iron** (`#181818`): Subtle surface variant (rgb 24, 24, 24) — barely distinguishable from black, used for footer and deep sections
-- **Overlay Black** (`rgba(0,0,0,0.7)`): Semi-transparent overlay for modals and video dimming
-- **Near White** (`#F8F8F8`): Rare light surface (rgb 248, 248, 248) for content blocks in white-mode sections
-- **Mist** (`#E6E6E6`): Light gray surface for secondary light-mode containers
+- **White Canvas** (`#FFFFFF`): Page background, navigation panel, dropdown menus, and all surface containers
+- **Light Ash** (`#F4F4F4`): Subtle alternate surface for section differentiation — barely perceptible shift from pure white (rgb 244, 244, 244)
+- **Carbon Dark** (`#171A20`): Dark surface color for hero text overlays and potential dark-mode contexts (rgb 23, 26, 32) — a warm near-black with a blue undertone
+- **Frosted Glass** (`rgba(255, 255, 255, 0.75)`): Semi-transparent white for navigation backdrop-filter effects on scroll
 
 ### Neutrals & Text
-- **Pure White** (`#FFFFFF`): Primary text on dark backgrounds — headlines, body, nav labels
-- **Smoke** (`#F5F5F5`): Secondary text on dark surfaces — slightly softer than pure white
-- **Graphite** (`#494949`): Dark gray text on light surfaces (rgb 73, 73, 73)
-- **Ash** (`#7D7D7D`): Mid-range gray for muted text, timestamps, and metadata (rgb 125, 125, 125)
-- **Steel** (`#969696`): Lighter gray for disabled text and subtle labels (rgb 150, 150, 150)
-- **Slate** (`#666666`): Alternative mid-gray for secondary content
-- **Iron** (`#555555`): Dark mid-gray for body text variants
-- **Shadow** (`#313131`): Very dark gray for text on dark surfaces where white is too strong
+- **Carbon Dark** (`#171A20`): Primary heading and navigation text — the darkest text value (rgb 23, 26, 32), used for model names, nav labels, and hero titles on light backgrounds
+- **Graphite** (`#393C41`): Body text and secondary content (rgb 57, 60, 65) — the default paragraph color, slightly warmer than pure gray
+- **Pewter** (`#5C5E62`): Tertiary text for sub-links, secondary navigation links like "Learn" and "Order" (rgb 92, 94, 98)
+- **Silver Fog** (`#8E8E8E`): Placeholder text in input fields and disabled states (rgb 142, 142, 142)
+- **Cloud Gray** (`#EEEEEE`): Light borders and divider lines (rgb 238, 238, 238)
+- **Pale Silver** (`#D0D1D2`): Subtle UI borders and delineation (rgb 208, 209, 210)
 
 ### Semantic & Accent
-- **Cyan Pulse** (`#29ABE2`): Used for informational highlights and interactive feedback
-- **Link Blue** (`#3860BE`): Universal hover state for all hyperlinks
-- **Teal Action** (`#1EAEDB`): Button hover background for transparent/ghost variants (rgb 30, 174, 219)
+- Tesla's marketing site avoids semantic color coding (no green/red/yellow status indicators). Error, success, and warning states follow standard browser defaults in form contexts
+- The blue CTA (`#3E6AE1`) serves as the sole interactive color signal
 
 ### Gradient System
-- No explicit gradients in the color palette — the dark-to-light progression is achieved through surface layering: `#000000` → `#181818` → `#202020` → `#494949` → `#7D7D7D`
-- Video heroes use natural atmospheric gradients from the content itself
-- Top-of-page gradient: subtle dark-to-darker fade at the edges of full-bleed imagery
+- No gradients are used anywhere in the interface
+- Depth is achieved entirely through photography, whitespace, and the binary contrast between full-bleed imagery and clean white surfaces
+- The navigation achieves layering through opacity (frosted glass effect) rather than gradient or shadow
 
 ## 3. Typography Rules
 
 ### Font Family
-- **Display & UI**: `LamboType`, Roboto, Helvetica Neue, Arial — custom Neo-Grotesk typeface by Character Type for Lamborghini's 2024 brand refresh. Available in widths from Normal to Ultracompressed and weights from Light (300) to Black. Features 12° angled terminals inspired by aerodynamic car geometry, hexagonal construction logic, and support for 200+ languages including Latin, Cyrillic, and Greek
-- **Fallback/UI**: `Open Sans` — used for some button/form contexts as system fallback
-- **No italic variants** observed on the marketing site — the brand voice is always upright
+- **Display**: `Universal Sans Display`, -apple-system, Arial, sans-serif — used for hero titles and large model names. A geometric sans-serif with precisely engineered proportions, recently replacing Gotham to unify Tesla's digital ecosystem (website, mobile app, vehicle interface)
+- **Text/UI**: `Universal Sans Text`, -apple-system, Arial, sans-serif — used for navigation, body copy, buttons, and all UI text. Optimized for legibility at smaller sizes with slightly wider proportions than the Display variant
+- **No OpenType features** detected — typography is completely unembellished
+- **No italic variants** observed on the marketing site
 
 ### Hierarchy
 
 | Role | Size | Weight | Line Height | Letter Spacing | Notes |
 |------|------|--------|-------------|----------------|-------|
-| Hero Display | 120px (7.50rem) | 400 | 0.92 | normal | LamboType, uppercase, maximum impact |
-| Display 2 | 80px (5.00rem) | 400 | 1.13 | normal | LamboType, uppercase, major section titles |
-| Section Title | 54px (3.38rem) | 400 | 1.19 | normal | LamboType, uppercase |
-| Sub-section | 40px (2.50rem) | 400 | 1.15 | normal | LamboType, uppercase |
-| Feature Heading | 27px (1.69rem) | 400 | 1.37 | normal | LamboType, uppercase |
-| Card Title | 24px (1.50rem) | 400 | — | normal | LamboType |
-| Body Large | 18px (1.13rem) | 400 | 1.56 | normal | LamboType, mixed case and uppercase variants |
-| Body / UI | 16px (1.00rem) | 400/700 | 1.50 | normal/0.16px | LamboType, primary body text |
-| Button Large | 16px (1.00rem) | 400 | 1.50 | normal | Gold CTA buttons |
-| Button Standard | 14.4px (0.90rem) | 300/700 | 1.00 | 0.14–0.2px | LamboType, uppercase, ghost buttons |
-| Button Small | 13px (0.81rem) | 300/500 | 1.20 | 0.13–0.2px | LamboType, compact button variant |
-| Caption | 14px (0.88rem) | 600/700 | 1.14–1.50 | -0.42px | LamboType, uppercase, negative tracking |
-| Label | 12px (0.75rem) | 400/500 | 1.83 | 0.96px | LamboType, uppercase badges and micro labels |
-| Micro | 10px (0.63rem) | 400 | 1.00–2.00 | 0.225px | LamboType, uppercase, smallest text |
+| Hero Title | 40px (2.50rem) | 500 | 48px (1.20) | normal | Universal Sans Display, white on dark hero imagery |
+| Product Name | 17px (1.06rem) | 500 | 20px (1.18) | normal | Universal Sans Text, model names in nav panel and cards |
+| Nav Item | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, primary navigation labels |
+| Body Text | 14px (0.88rem) | 400 | 20px (1.43) | normal | Universal Sans Text, paragraph and descriptive content |
+| Button Label | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, CTA button text |
+| Sub-link | 14px (0.88rem) | 400 | 20px (1.43) | normal | Tertiary links (Learn, Order, Experience) |
+| Promo Text | 22px (1.38rem) | 400 | 20px (0.91) | normal | White promotional text on hero ("0% APR Available") |
+| Category Label | 16px (est.) | 500 | — | normal | White text labels on category cards ("Sport Sedan") |
 
 ### Principles
-- **ALL-CAPS is the default voice**: Display and feature headings are universally uppercase. This creates a shouting, commanding tone that matches the brand's aggression
-- **Extreme scale range**: From 120px heroes to 10px micro labels — a 12:1 ratio that creates dramatic visual hierarchy
-- **Tight line-heights at scale**: Display sizes use 0.92-1.19 line-height, creating dense, compressed blocks of type that feel stamped rather than typeset
-- **Weight 400 dominates**: Unlike many design systems that use bold for emphasis, Lamborghini's regular weight carries the headlines — the typeface itself is so distinctive it doesn't need weight variation
-- **Negative tracking on captions**: -0.42px letter-spacing on 14px captions creates a compressed, technical aesthetic
-- **Positive tracking on micro text**: +0.225px at 10px ensures legibility at the smallest sizes
-- **Single typeface discipline**: LamboType handles everything — the 12° angled terminals and hexagonal geometry provide visual coherence across all sizes
+- **"Normal" letter-spacing everywhere**: Unlike most modern tech brands that use negative tracking for headlines, Tesla uses default letter-spacing at every level. This reflects a philosophy that the typeface should speak for itself without manipulation
+- **Weight restraint**: Only two weights appear — 500 (medium) for headings/UI and 400 (regular) for body. No bold (700), no light (300). The system avoids typographic drama
+- **Unified font sizing**: Most UI text clusters at 14px with only hero titles (40px) and promo text (22px) breaking away. This extreme uniformity creates a sense of engineered consistency
+- **Display vs Text split**: The two-variant system (Display for hero, Text for UI) creates subtle optical correction without visible stylistic difference — they appear as the same typeface at different sizes
+- **No text transforms**: No uppercase text appears in the main navigation or CTAs — the lowercase approach reinforces Tesla's understated confidence
 
 ## 4. Component Stylings
 
 ### Buttons
-All buttons use **zero border-radius** — sharp, angular rectangles that echo the aggressive lines of Lamborghini vehicles.
+All buttons use barely-rounded rectangles (4px border-radius) — creating a sharp, technical aesthetic that mirrors the precision of the vehicles.
 
-**Gold Accent CTA** — The primary action:
-- Default: bg `#FFC000` (Lamborghini Gold), text `#000000`, padding 24px, fontSize 16px, fontWeight 400, borderRadius 0px, no border
-- Hover: bg `#917300` (Dark Gold), darkens significantly
-- Class: `btn-accent btn-large`
-- Used for: "Discover More", "Tickets", "Start Configuration"
+**Primary CTA** — The main action button:
+- Default: bg `#3E6AE1` (Electric Blue), text `#FFFFFF`, fontSize 14px, fontWeight 500, padding 4px with inner content centering, borderRadius 4px, minHeight 40px, width 200px
+- Border: 3px solid transparent (reserves space for focus/active border animation)
+- Box Shadow: `rgba(0,0,0,0) 0px 0px 0px 2px inset` (invisible at rest, animates to visible on focus)
+- Transition: `border-color 0.33s, background-color 0.33s, color 0.33s, box-shadow 0.25s`
+- Hover: subtle darkening of blue background
+- Used for: "Order Now" calls to action
 
-**Transparent Ghost** — The secondary action on dark backgrounds:
-- Default: bg transparent, text `#FFFFFF`, border 1px solid `#FFFFFF`, padding 16px, opacity 0.5
-- Hover: bg `#1EAEDB` (Teal Action), text white, opacity 0.7
-- Focus: bg `#1EAEDB`, border 1px solid `#000000`, outline 2px solid `#000000`
-- Used for: secondary CTAs on hero sections and dark panels
+**Secondary CTA** — The alternative action button:
+- Default: bg `#FFFFFF`, text `#393C41` (Graphite), same dimensions and border pattern as primary
+- Transition: identical timing to primary (0.33s)
+- Used for: "View Inventory" alongside primary CTA
 
-**White Filled** — Light-mode primary:
-- Default: bg `#FFFFFF`, text `#202020`, no border
-- Used for: CTAs on dark sections where gold isn't appropriate
+**Nav Button** — Top navigation items:
+- Default: bg transparent, text `#171A20` (Carbon Dark), fontSize 14px, fontWeight 500, borderRadius 4px, padding 4px 16px, minHeight 32px
+- Transition: `color 0.33s, background-color 0.33s`
+- Active/expanded: subtle background highlight
+- Used for: "Vehicles", "Energy", "Charging", "Discover", "Shop"
 
-**Black Filled** — Dark filled variant:
-- Default: bg `#000000`, text `#202020`
-- Used for: Inverted CTA on light sections
-
-**Gray Neutral** — Subtle action:
-- Default: bg `#969696`, text `#202020`
-- Used for: secondary/tertiary actions, badge-like buttons
+**Text Link** — In-content actions:
+- Default: text `#5C5E62` (Pewter), fontSize 14px, fontWeight 400, no background, no border
+- Hover: underline decoration with box-shadow transition
+- Transition: `box-shadow 0.33s cubic-bezier(0.5, 0, 0, 0.75), color 0.33s`
+- Used for: "Learn", "Order", "Experience", "New", "Pre-Owned" links in dropdown panel
 
 ### Cards & Containers
-- Background: `#202020` (Charcoal) on black canvas, or `#000000` on lighter sections
-- Border: `0px 1px solid #202020` bottom borders for section dividers
-- Border-radius: 0px (completely sharp corners)
-- Shadow: minimal, uses overlay opacity for depth
-- Content: full-bleed photography + overlaid text in white
+
+**Vehicle Card** (Navigation panel):
+- Background: transparent (inherits panel white)
+- Border: none
+- Shadow: none
+- Content: vehicle image (transparent PNG) + model name centered below + two text links
+- Layout: 3-column grid within the dropdown panel
+- No hover animation on the card itself — interaction is via the text links beneath
+
+**Category Card** (Homepage lower section):
+- Background: full-bleed landscape photography
+- Border radius: approximately 12px (subtly rounded)
+- Overflow: hidden (clips image to rounded corners)
+- Text: white label in top-left corner ("Sport Sedan", "Midsize SUV")
+- Size: large format, approximately 2:1 aspect ratio
+- No shadow, no border, no overlay gradient — text relies on image darkness for contrast
 
 ### Inputs & Forms
-- Minimal form presence on the marketing site
-- Switch elements: border-radius 20px (the only rounded element), border 1px solid `#DDDDDD`
-- Cookie banner input style: white text on black with `#7D7D7D` borders
+- Background: transparent
+- Text color: `#171A20` (Carbon Dark)
+- Placeholder color: `#8E8E8E` (Silver Fog)
+- Border: minimal, inherits from browser defaults
+- Font: Universal Sans Text, 14px
+- The "Ask a Question" chatbot input bar sits at the viewport bottom with a clean white background and subtle border
 
 ### Navigation
-- **Desktop**: Centered bull logo, "MENU" hamburger with icon on left, search icon + bookmarks icon on right
-- **Background**: Transparent (inherits black page background)
-- **Sticky**: Fixed to top, floats above content
-- **No visible borders or shadows** — elements float in the darkness
-- **"MENU" label**: White text at 14px weight 400, uppercase, accompanies hamburger icon
-- **Hexagonal motifs**: Pause button on hero sections uses hexagonal outline shape
+- **Desktop**: Centered horizontal nav with TESLA wordmark (spaced uppercase letters) on the left, five category buttons center-aligned, and three icon buttons (help, globe/language, account) on the right
+- **Background**: White (transitions from transparent over dark hero to opaque white on scroll via class toggle `tds-site-header--white-background`)
+- **Dropdown panel**: Full-width white panel with 3-column vehicle grid + right sidebar text links, no shadow, no border — appears seamlessly below the nav
+- **Sticky behavior**: `sticky-without-slide` class — stays at top without slide-in animation
+- **Mobile**: Hamburger collapse pattern
+- **No visible separator** between nav and content — the nav blends with the hero
 
 ### Image Treatment
-- **Hero**: Full-viewport video sections (100vh) with cinematic event/vehicle footage
-- **Event photography**: Full-bleed aerial shots of Lamborghini Arena events
-- **Vehicle imagery**: High-contrast studio shots on dark backgrounds, full-width
-- **Aspect ratios**: Predominantly 16:9 and wider for cinematic feel
-- **Dark gradient overlays**: Subtle darkening at top/bottom edges of video to ensure text legibility
+- **Hero**: Full-viewport (100vh) sections with cinematic photography — edge-to-edge, no padding, no margin
+- **Vehicle images**: Transparent PNG renders on white background in dropdown panel, studio-quality 3/4 angle shots
+- **Category cards**: Landscape photography with approximately 2:1 ratio, rounded corners (12px)
+- **Carousel**: Auto-advancing with dot indicators (3 dots) and left/right arrow navigation on edges
+- **Lazy loading**: Below-fold sections use lazy loading, rendering as blank white until scrolled into view
 
-### Distinctive Components
-- **Hexagonal Pause Button**: Video control uses a hexagonal outline (matching the brand's geometric DNA from the typeface), positioned bottom-right of hero sections
-- **Progress Bar**: Thin white line at bottom of hero sections indicating video/slide progress
-- **Badge/Tag**: bg `#969696`, text white, padding 8px, fontSize 10px, borderRadius 2px — tiny metallic pills
+### Persistent Chat Bar
+- Anchored to viewport bottom, visible across all sections
+- White background with subtle border
+- Contains: chat icon + "Ask a Question" label + placeholder text ("What's Dog Mode?") + send icon + "Schedule a Drive Today" secondary CTA
+- Schedule CTA has a teal/blue icon accent
 
 ## 5. Layout Principles
 
 ### Spacing System
 - **Base unit**: 8px
-- **Full scale**: 2px, 4px, 5px, 8px, 10px, 12px, 15px, 16px, 20px, 24px, 32px, 40px, 48px, 56px
-- **Button padding**: 16px (ghost), 24px (gold accent)
-- **Section padding**: 48–56px vertical, 40px horizontal
-- **Small spacing**: 2–5px for fine adjustments (badge padding, border spacing)
+- **Common values**: 8px (0.5rem), 16px (1rem), 21.44px (1.34rem)
+- **Button padding**: 4px (minimal outer) with content centering via flexbox, 4px 16px for nav items
+- **Section padding**: Full-viewport sections with content centered vertically
+- **Card gap**: approximately 16px between category cards
 
 ### Grid & Container
-- **Framework**: Bootstrap grid system (container + row + col)
-- **Max width**: 1440px (largest breakpoint)
-- **Columns**: Standard 12-column Bootstrap grid
-- **Full-bleed**: Hero sections break out of grid to fill viewport edge-to-edge
-- **Content areas**: Centered within 1200px max-width containers
+- **Max width**: approximately 1383px (full viewport width used for most content)
+- **Hero**: Full-bleed, edge-to-edge, 100vh sections
+- **Navigation panel**: 3-column grid for vehicle cards with right-aligned text sidebar (~70/30 split)
+- **Category cards**: 2-up horizontal layout (large left card + smaller right card)
 
 ### Whitespace Philosophy
-Lamborghini uses darkness as whitespace. The generous black expanses between content blocks serve the same function as white space in a light design — creating breathing room that elevates each element to the status of exhibit. A model name floating in the middle of a black viewport has the same visual weight as a gallery piece on a white wall. The absence of color IS the design.
+Tesla uses whitespace as a luxury signal. The generous vertical spacing between sections (each section is a full viewport height) means you can only see one "message" at a time — one car, one model name, one CTA pair. This creates a gallery-like browsing experience where each scroll is a deliberate transition, not a continuous feed. White space is not empty — it's the frame that elevates each vehicle to the status of art piece.
 
 ### Border Radius Scale
 | Value | Context |
 |-------|---------|
-| 0px | Default for everything — buttons, cards, containers, images |
-| 1px | Subtle span elements |
-| 2px | Badges, close buttons, cookie elements — barely perceptible |
-| 20px | Toggle switches only — the sole rounded element |
+| 0px | Most elements — sharp edges are the default |
+| 4px | Buttons (primary, secondary, nav items) — barely perceptible rounding |
+| ~12px | Category cards — noticeable but restrained rounding on larger surfaces |
+| 50% | Carousel dot indicators — perfect circles |
 
 ## 6. Depth & Elevation
 
 | Level | Treatment | Use |
 |-------|-----------|-----|
-| Level 0 (Abyss) | `#000000` flat | Page background, deepest layer |
-| Level 1 (Surface) | `#181818` or `#202020` | Cards, content panels, elevated sections |
-| Level 2 (Overlay) | `rgba(0,0,0,0.7)` | Modal backdrops, video dimming |
-| Level 3 (Fog) | `rgba(0,0,0,0.5)` | Lighter overlays, hover states |
-| Level 4 (Mist) | `rgba(0,0,0,0.25)` | Subtle depth hints |
+| Level 0 (Flat) | No shadow, no border | Default state for all elements — cards, panels, buttons at rest |
+| Level 1 (Frost) | `rgba(255,255,255,0.75)` backdrop | Navigation bar on scroll — frosted glass transparency |
+| Level 2 (Overlay) | `rgba(128,128,128,0.65)` | Modal overlays and region/cookie popups |
+| Level 3 (Subtle) | `rgba(0,0,0,0.05)` | Minimal shadow hints on rare hover states |
 
 ### Shadow Philosophy
-Lamborghini achieves depth through surface color layering rather than shadows. On a black canvas, traditional drop shadows are invisible — instead, the system creates elevation by shifting from absolute black to progressively lighter dark grays: `#000000` → `#181818` → `#202020` → `#494949`. This "darkness gradient" approach means that elevated elements are literally lighter than their surroundings, inverting the traditional shadow model.
+Tesla's approach to elevation is essentially "none." The site avoids box-shadows entirely in its primary interface. Depth is communicated through three alternative strategies:
+1. **Z-index layering**: The sticky navigation sits above hero content through positioning, not shadow
+2. **Opacity-based transparency**: The frosted glass nav and overlay modals use background-color opacity rather than shadow to indicate layering
+3. **Photography-as-depth**: The full-bleed images create their own visual depth through perspective, lighting, and composition — making UI shadows redundant
 
 ### Decorative Depth
-- Full-bleed video provides atmospheric depth through cinematic lighting
-- The hexagonal pause button floats with a thin white outline stroke
-- Progress bars at hero section bottoms create a subtle horizon line
-- No gradients, glows, or blur effects on UI elements — the photography provides all visual richness
+- No gradients, glows, or atmospheric effects on UI elements
+- The hero imagery itself provides all visual richness — sunset skies, reflected light on car surfaces, ground shadows from studio lighting
+- The carousel arrow buttons use a semi-transparent white background to float above the hero imagery without disrupting it
 
 ## 7. Do's and Don'ts
 
 ### Do
-- Use absolute black (`#000000`) as the primary background — never dark gray as a substitute
-- Apply Lamborghini Gold (`#FFC000`) exclusively for primary CTA buttons — never for decorative purposes
-- Set all display headings in uppercase with LamboType — the brand voice is always SHOUTING
-- Use zero border-radius on buttons and cards — sharp angles are non-negotiable
-- Maintain tight line-heights (0.92–1.19) on display type to create dense, architectural text blocks
-- Use the transparent ghost button (white border, 50% opacity) as the secondary CTA on dark backgrounds
-- Let full-viewport video/photography carry emotional weight — UI is infrastructure, not decoration
-- Reserve hexagonal geometry for UI icons and the video control button
-- Use weight 400 (regular) for headlines — the typeface is distinctive enough without bold emphasis
-- Keep the gray palette achromatic — all neutrals are pure gray without color tinting
+- Let photography dominate every screen — the product IS the design
+- Use Electric Blue (`#3E6AE1`) exclusively for primary CTAs — never for decorative purposes
+- Maintain viewport-height sections for major content blocks — one message per screen
+- Keep typography at weight 400-500 only — no bold, no light, no extremes
+- Use 4px border-radius for all interactive elements — precision over playfulness
+- Trust whitespace as a luxury signal — never fill available space just because it's empty
+- Keep all transitions at 0.33s — consistency in motion is as important as consistency in color
+- Use transparent PNG vehicle imagery on white backgrounds for product showcases
+- Center CTAs horizontally below model names — the vertical rhythm is model → subtitle → buttons
+- Maintain the Display/Text font split — Display for hero-scale text only, Text for everything else
 
 ### Don't
-- Introduce additional accent colors beyond gold — the monochrome-plus-gold system is sacred
-- Apply border-radius to buttons or cards — curved edges contradict the angular vehicle aesthetic
-- Use LamboType in italic or decorative styles — the brand is always upright and direct
-- Add gradients to buttons or surfaces — depth comes from surface layering, not blending
-- Use light backgrounds as the primary canvas — darkness is the default state, light is the exception
-- Mix lowercase into display headings — the uppercase convention communicates authority and power
-- Add hover animations with scale or translate — interactions should be color-only (background/opacity shifts)
-- Use Open Sans for display text — LamboType must handle all visible typography
-- Create busy layouts with many small elements — Lamborghini's design is about singular, bold statements
-- Apply shadows to elements — on a black canvas, shadows are meaningless; use surface color shifts instead
+- Add shadows to any element — elevation through shadow contradicts the flat, gallery aesthetic
+- Use more than one chromatic color besides the blue CTA — the palette is intentionally monochrome-plus-one
+- Apply gradients, patterns, or decorative backgrounds to surfaces — white and photography are the only backgrounds
+- Use text larger than 40px on the web — the typography is deliberately restrained even at hero scale
+- Add borders to cards or containers — separation is achieved through spacing, not lines
+- Use uppercase text transforms — Tesla's confidence is expressed through lowercase calm
+- Introduce rounded-pill buttons or large border-radii — the 4px radius is deliberate and precise
+- Override the Universal Sans family with other typefaces — cross-platform consistency is a core brand value
+- Add hover animations with scale/translate transforms — Tesla's interactions are color-only (background and border transitions)
+- Clutter the viewport with multiple CTAs — every screen should have at most two action buttons
 
 ## 8. Responsive Behavior
 
 ### Breakpoints
 | Name | Width | Key Changes |
 |------|-------|-------------|
-| Mobile Small | <425px | Single column, reduced type scale, stacked buttons |
-| Mobile | 425-576px | Single column, hamburger nav, hero text ~40px |
-| Tablet Small | 576-768px | 2-column grid begins, padding adjusts |
-| Tablet | 768-1024px | 2-column layout, expanded hero, vehicle cards side-by-side |
-| Desktop | 1024-1280px | Full navigation, 3+ column grids, display text at 80px |
-| Desktop Large | 1280-1440px | Full layout, hero at 120px display, max-width containers |
-| Wide | >1440px | Content centered, margins expand, hero fills viewport |
+| Mobile | <768px | Single-column layout, hamburger nav replaces horizontal labels, hero text scales to ~28px, CTA buttons stack vertically, category cards become full-width |
+| Tablet | 768-1024px | 2-column nav panel, hero maintains full-viewport height, CTAs remain side-by-side, reduced horizontal padding |
+| Desktop | 1024-1440px | Full horizontal nav, 3-column vehicle grid in dropdown, hero at 40px, side-by-side CTAs at 200px/160px width |
+| Large Desktop | >1440px | Content remains centered, hero photography scales to fill wider viewports, max-width container for nav panel content |
 
 ### Touch Targets
-- Gold CTA buttons: 48px+ minimum height with 24px padding (exceeds WCAG 44×44px)
-- Ghost buttons: 48px+ with 16px padding
-- Hamburger menu: large touch target (~48px square)
-- Hexagonal pause button: approximately 48px diameter
+- Primary CTA buttons: 200px × 40px minimum (well above 44×44px WCAG requirement)
+- Nav buttons: minimum 32px height with 4px 16px padding — adequate touch targets
+- Carousel arrows: ~44px square white semi-transparent buttons at viewport edges
+- Text links ("Learn", "Order"): 14px text with adequate line-height spacing for touch
 
 ### Collapsing Strategy
-- **Navigation**: Always hamburger-based ("MENU" + icon) — no horizontal nav expansion on any breakpoint
-- **Hero video**: Maintains full-viewport height across all breakpoints, adjusting object-fit
-- **Display type**: Scales from 120px (desktop) → 80px (tablet) → 54px/40px (mobile)
-- **Button layout**: Side-by-side on desktop, stacks vertically on mobile
-- **Grid columns**: 3-column → 2-column → 1-column progression
-- **Section spacing**: Reduces from 56px → 40px → 24px vertical padding
+- **Navigation**: Horizontal category buttons (Vehicles, Energy, Charging, Discover, Shop) collapse to a hamburger/drawer menu on mobile
+- **Hero CTA pair**: Side-by-side buttons on desktop stack vertically on mobile
+- **Category cards**: 2-up horizontal layout collapses to single-column full-width on mobile
+- **Vehicle grid**: 3-column grid in desktop nav panel becomes 2-column on tablet, single-column on mobile
+- **Spacing**: Section vertical padding remains generous (viewport-height sections) but horizontal padding reduces
 
 ### Image Behavior
-- Hero videos use `object-fit: cover` to maintain cinematic framing at all sizes
-- Vehicle images scale within their containers with maintained aspect ratios
-- Event photography crops to viewport width on narrow screens
-- Background images darken at edges to maintain text contrast on all viewports
+- Hero images are fully responsive and fill the entire viewport at every breakpoint
+- Vehicle carousel images use `object-fit: cover` to maintain cinematic composition across widths
+- Transparent PNG vehicle images in the nav panel scale proportionally within their grid cells
+- Category card images maintain their landscape ratio and clip via `overflow: hidden` with border-radius
 
 ## 9. Agent Prompt Guide
 
 ### Quick Color Reference
-- Primary CTA: "Lamborghini Gold (#FFC000)"
-- Background: "Absolute Black (#000000)"
-- Surface: "Charcoal (#202020)"
-- Heading text: "Pure White (#FFFFFF)"
-- Body text: "Ash (#7D7D7D)"
-- Link hover: "Link Blue (#3860BE)"
-- Accent: "Cyan Pulse (#29ABE2)"
-- Border: "Pure White (#FFFFFF) at 50% opacity"
+- Primary CTA: "Electric Blue (#3E6AE1)"
+- Background: "Pure White (#FFFFFF)"
+- Heading text: "Carbon Dark (#171A20)"
+- Body text: "Graphite (#393C41)"
+- Tertiary text: "Pewter (#5C5E62)"
+- Placeholder: "Silver Fog (#8E8E8E)"
+- Alternate surface: "Light Ash (#F4F4F4)"
+- Dark surface: "Carbon Dark (#171A20)"
 
 ### Example Component Prompts
-- "Create a hero section with a full-viewport black background, the model name 'TEMERARIO' in LamboType at 120px uppercase weight 400 white text with 0.92 line-height, centered vertically, with a Lamborghini Gold (#FFC000) 'Discover More' button below — sharp corners, 0px radius, 24px padding, black text"
-- "Design a transparent ghost button with 1px solid white border at 50% opacity, white text at 14.4px uppercase with 0.2px letter-spacing, padding 16px, on a black background — hover state changes to Teal Action (#1EAEDB) background with 70% opacity"
-- "Build a navigation bar with zero visible background on absolute black, a centered bull logo, 'MENU' text label with hamburger icon on the left, and search + bookmark icons on the right — all in white, sticky position"
-- "Create a news card grid on charcoal (#202020) background with white headlines at 27px uppercase, body text in #7D7D7D at 16px, and a white underlined 'Read More' link that turns #3860BE on hover"
-- "Design a section divider using a 1px solid bottom border in #202020 on a black canvas — the elevation difference is purely through surface color shift, not shadow"
+- "Create a hero section with a full-viewport background image, centered 'Model Y' title in Universal Sans Display at 40px weight 500 in white, a subtitle line below, and two buttons side by side: a primary Electric Blue (#3E6AE1) 'Order Now' button and a secondary white 'View Inventory' button, both with 4px border-radius and 40px height"
+- "Design a navigation bar with a spaced-letter wordmark on the left, five text buttons (14px, weight 500, Carbon Dark #171A20) centered, and three icon buttons on the right, all on a white background with no shadow or border"
+- "Build a vehicle card grid with 3 columns, each card showing a transparent-background car image above a model name (17px, weight 500, Carbon Dark) and two text links (14px, weight 400, Pewter #5C5E62) labeled 'Learn' and 'Order', on a pure white surface with no borders or shadows"
+- "Create a category card with full-bleed landscape photography, 12px border-radius, overflow hidden, and a white text label ('Sport Sedan') positioned in the top-left corner with no overlay gradient"
+- "Design a persistent bottom bar with a chat input ('Ask a Question' placeholder), a send icon, and a secondary CTA ('Schedule a Drive Today') with a teal icon, anchored to the viewport bottom on a white background"
 
 ### Iteration Guide
 When refining existing screens generated with this design system:
-1. Focus on ONE component at a time — Lamborghini's system is extreme and every element must feel aggressive
-2. Reference specific color names and hex codes from this document — the palette has only about 5 active colors
-3. Use natural language descriptions, not CSS values — "sharp-cut golden rectangle" not "border-radius: 0px; background: #FFC000"
-4. Describe the desired "feel" alongside specific measurements — "floating in total darkness" communicates the black canvas better than "background: #000000"
-5. Remember that UPPERCASE IS THE DEFAULT — if text isn't uppercase at display sizes, it probably should be
+1. Focus on ONE component at a time — Tesla's system is so minimal that each element must be pixel-perfect
+2. Reference specific color names and hex codes from this document — there are only 6-7 colors in the entire system
+3. Use natural language descriptions, not CSS values — "barely rounded corners" not "border-radius: 4px"
+4. Describe the desired "feel" alongside specific measurements — "gallery-like silence between sections" communicates the whitespace philosophy better than "margin-bottom: 100vh"
+5. Always verify that photography is doing the emotional heavy-lifting — if the UI itself feels "designed," it's too much

config.env.example

@@ -151,7 +151,7 @@ LIVE_STREAM_QUALITY=75
 LIVE_STREAM_EVERY_N=2
 
 # --- Dashboard (counter_dashboard.py) ---
-# Template file: "dashboard.html" (default) or "dashboard_lamborghini.html" (Lamborghini theme)
+# Template file: "dashboard.html" (default), "dashboard_lamborghini.html", or "dashboard_tesla.html"
 DASHBOARD_TEMPLATE=dashboard.html
 # Flask secret key for session/cookie signing — change in production!
 SECRET_KEY=change-me-in-production

lamborghini/DESIGN.md

@@ -0,0 +1,288 @@
+# Design System Inspired by Lamborghini
+
+## 1. Visual Theme & Atmosphere
+
+Lamborghini's website is a cathedral of darkness — a digital stage where jet-black surfaces stretch infinitely and every element emerges from the void like a machine under a spotlight. The page is almost entirely black. Not dark gray, not near-black — true, uncompromising black (`#000000`) that saturates the viewport and refuses to yield. Into this abyss, white type and Lamborghini Gold (`#FFC000`) are deployed with surgical precision, creating a visual language that feels like walking through a nighttime motorsport event where every surface absorbs light except the things that matter.
+
+The hero is a full-viewport video — dark, cinematic, immersive — showing event footage or vehicle reveals with the Lamborghini bull logo floating ethereally above. The navigation is minimal: a centered bull logo, a "MENU" hamburger on the left, and search/bookmark icons on the right, all rendered in white against the black canvas. There are no borders, no visible nav containers, no background color on the header — just white marks floating in darkness. The overall mood is nocturnal luxury: exclusive, theatrical, and deliberately intimidating. Each section transition is a scroll through darkness into the next revelation.
+
+Typography is the voice of this darkness. LamboType — a custom Neo-Grotesk typeface created by Character Type and design agency Strichpunkt — is used for everything from 120px uppercase display headlines to 10px micro labels. Its distinctive 12° angled terminals are inspired by the aerodynamic lines of Lamborghini's super sports cars, and its proportions range from Normal to Ultracompressed width. Headlines SHOUT in uppercase at enormous scales with tight line-heights (0.92 at 120px), creating dense blocks of text that feel stamped from steel. The typeface carries hexagonal geometric DNA — constructed from hexagons, three-armed stars, and circles — that echoes throughout the interface in the hexagonal pause button and UI icons. Built on Bootstrap grid with 68 Element Plus/UI components, the technical infrastructure is substantial beneath the theatrical surface.
+
+**Key Characteristics:**
+- True black (`#000000`) dominant surfaces with white and gold as the only relief colors
+- LamboType custom Neo-Grotesk font with 12° angled terminals inspired by aerodynamic car lines
+- Lamborghini Gold (`#FFC000`) as the sole accent color — used exclusively for primary CTA buttons
+- All-uppercase display typography at extreme scales (120px, 80px, 54px) with tight line-heights
+- Full-viewport video heroes with cinematic event/vehicle content
+- Zero border-radius on buttons — sharp, angular, uncompromising rectangles
+- Hexagonal motifs in UI elements (pause button, icon system) echoing brand geometry
+- Bootstrap grid system + Element Plus/UI 68 components underneath
+- Transparent ghost buttons with white borders at 50% opacity as the secondary CTA pattern
+
+## 2. Color Palette & Roles
+
+### Primary
+- **Lamborghini Gold** (`#FFC000`): The signature accent color — a warm, saturated amber-gold (rgb 255, 192, 0) used exclusively for primary action buttons ("Discover More", "Tickets", "Start Configuration"). The only chromatic color in the entire interface, it ignites against the black canvas like a headlight cutting through night
+- **Pure White** (`#FFFFFF`): Primary text color on dark surfaces, logo rendering, nav elements, and light-mode button fills — the voice that speaks from the darkness
+
+### Secondary & Accent
+- **Dark Gold** (`#917300`): Hover/pressed state for gold buttons — a deep amber (rgb 145, 115, 0) that darkens the gold to signal interaction
+- **Gold Text** (`#FFCE3E`): Slightly lighter gold variant (rgb 255, 206, 62) used for inline text accents and highlighted labels
+- **Cyan Pulse** (`#29ABE2`): Electric blue-cyan (rgb 41, 171, 226) appearing as an informational accent and interactive element highlight
+- **Link Blue** (`#3860BE`): Medium blue (rgb 56, 96, 190) used universally for link hover states across all text colors
+
+### Surface & Background
+- **Absolute Black** (`#000000`): The dominant surface color — used for page background, hero sections, header, footer, and most containers
+- **Charcoal** (`#202020`): Elevated dark surface (rgb 32, 32, 32) — the primary "dark gray" for cards, panels, and text containers sitting above the black canvas
+- **Dark Iron** (`#181818`): Subtle surface variant (rgb 24, 24, 24) — barely distinguishable from black, used for footer and deep sections
+- **Overlay Black** (`rgba(0,0,0,0.7)`): Semi-transparent overlay for modals and video dimming
+- **Near White** (`#F8F8F8`): Rare light surface (rgb 248, 248, 248) for content blocks in white-mode sections
+- **Mist** (`#E6E6E6`): Light gray surface for secondary light-mode containers
+
+### Neutrals & Text
+- **Pure White** (`#FFFFFF`): Primary text on dark backgrounds — headlines, body, nav labels
+- **Smoke** (`#F5F5F5`): Secondary text on dark surfaces — slightly softer than pure white
+- **Graphite** (`#494949`): Dark gray text on light surfaces (rgb 73, 73, 73)
+- **Ash** (`#7D7D7D`): Mid-range gray for muted text, timestamps, and metadata (rgb 125, 125, 125)
+- **Steel** (`#969696`): Lighter gray for disabled text and subtle labels (rgb 150, 150, 150)
+- **Slate** (`#666666`): Alternative mid-gray for secondary content
+- **Iron** (`#555555`): Dark mid-gray for body text variants
+- **Shadow** (`#313131`): Very dark gray for text on dark surfaces where white is too strong
+
+### Semantic & Accent
+- **Cyan Pulse** (`#29ABE2`): Used for informational highlights and interactive feedback
+- **Link Blue** (`#3860BE`): Universal hover state for all hyperlinks
+- **Teal Action** (`#1EAEDB`): Button hover background for transparent/ghost variants (rgb 30, 174, 219)
+
+### Gradient System
+- No explicit gradients in the color palette — the dark-to-light progression is achieved through surface layering: `#000000` → `#181818` → `#202020` → `#494949` → `#7D7D7D`
+- Video heroes use natural atmospheric gradients from the content itself
+- Top-of-page gradient: subtle dark-to-darker fade at the edges of full-bleed imagery
+
+## 3. Typography Rules
+
+### Font Family
+- **Display & UI**: `LamboType`, Roboto, Helvetica Neue, Arial — custom Neo-Grotesk typeface by Character Type for Lamborghini's 2024 brand refresh. Available in widths from Normal to Ultracompressed and weights from Light (300) to Black. Features 12° angled terminals inspired by aerodynamic car geometry, hexagonal construction logic, and support for 200+ languages including Latin, Cyrillic, and Greek
+- **Fallback/UI**: `Open Sans` — used for some button/form contexts as system fallback
+- **No italic variants** observed on the marketing site — the brand voice is always upright
+
+### Hierarchy
+
+| Role | Size | Weight | Line Height | Letter Spacing | Notes |
+|------|------|--------|-------------|----------------|-------|
+| Hero Display | 120px (7.50rem) | 400 | 0.92 | normal | LamboType, uppercase, maximum impact |
+| Display 2 | 80px (5.00rem) | 400 | 1.13 | normal | LamboType, uppercase, major section titles |
+| Section Title | 54px (3.38rem) | 400 | 1.19 | normal | LamboType, uppercase |
+| Sub-section | 40px (2.50rem) | 400 | 1.15 | normal | LamboType, uppercase |
+| Feature Heading | 27px (1.69rem) | 400 | 1.37 | normal | LamboType, uppercase |
+| Card Title | 24px (1.50rem) | 400 | — | normal | LamboType |
+| Body Large | 18px (1.13rem) | 400 | 1.56 | normal | LamboType, mixed case and uppercase variants |
+| Body / UI | 16px (1.00rem) | 400/700 | 1.50 | normal/0.16px | LamboType, primary body text |
+| Button Large | 16px (1.00rem) | 400 | 1.50 | normal | Gold CTA buttons |
+| Button Standard | 14.4px (0.90rem) | 300/700 | 1.00 | 0.14–0.2px | LamboType, uppercase, ghost buttons |
+| Button Small | 13px (0.81rem) | 300/500 | 1.20 | 0.13–0.2px | LamboType, compact button variant |
+| Caption | 14px (0.88rem) | 600/700 | 1.14–1.50 | -0.42px | LamboType, uppercase, negative tracking |
+| Label | 12px (0.75rem) | 400/500 | 1.83 | 0.96px | LamboType, uppercase badges and micro labels |
+| Micro | 10px (0.63rem) | 400 | 1.00–2.00 | 0.225px | LamboType, uppercase, smallest text |
+
+### Principles
+- **ALL-CAPS is the default voice**: Display and feature headings are universally uppercase. This creates a shouting, commanding tone that matches the brand's aggression
+- **Extreme scale range**: From 120px heroes to 10px micro labels — a 12:1 ratio that creates dramatic visual hierarchy
+- **Tight line-heights at scale**: Display sizes use 0.92-1.19 line-height, creating dense, compressed blocks of type that feel stamped rather than typeset
+- **Weight 400 dominates**: Unlike many design systems that use bold for emphasis, Lamborghini's regular weight carries the headlines — the typeface itself is so distinctive it doesn't need weight variation
+- **Negative tracking on captions**: -0.42px letter-spacing on 14px captions creates a compressed, technical aesthetic
+- **Positive tracking on micro text**: +0.225px at 10px ensures legibility at the smallest sizes
+- **Single typeface discipline**: LamboType handles everything — the 12° angled terminals and hexagonal geometry provide visual coherence across all sizes
+
+## 4. Component Stylings
+
+### Buttons
+All buttons use **zero border-radius** — sharp, angular rectangles that echo the aggressive lines of Lamborghini vehicles.
+
+**Gold Accent CTA** — The primary action:
+- Default: bg `#FFC000` (Lamborghini Gold), text `#000000`, padding 24px, fontSize 16px, fontWeight 400, borderRadius 0px, no border
+- Hover: bg `#917300` (Dark Gold), darkens significantly
+- Class: `btn-accent btn-large`
+- Used for: "Discover More", "Tickets", "Start Configuration"
+
+**Transparent Ghost** — The secondary action on dark backgrounds:
+- Default: bg transparent, text `#FFFFFF`, border 1px solid `#FFFFFF`, padding 16px, opacity 0.5
+- Hover: bg `#1EAEDB` (Teal Action), text white, opacity 0.7
+- Focus: bg `#1EAEDB`, border 1px solid `#000000`, outline 2px solid `#000000`
+- Used for: secondary CTAs on hero sections and dark panels
+
+**White Filled** — Light-mode primary:
+- Default: bg `#FFFFFF`, text `#202020`, no border
+- Used for: CTAs on dark sections where gold isn't appropriate
+
+**Black Filled** — Dark filled variant:
+- Default: bg `#000000`, text `#202020`
+- Used for: Inverted CTA on light sections
+
+**Gray Neutral** — Subtle action:
+- Default: bg `#969696`, text `#202020`
+- Used for: secondary/tertiary actions, badge-like buttons
+
+### Cards & Containers
+- Background: `#202020` (Charcoal) on black canvas, or `#000000` on lighter sections
+- Border: `0px 1px solid #202020` bottom borders for section dividers
+- Border-radius: 0px (completely sharp corners)
+- Shadow: minimal, uses overlay opacity for depth
+- Content: full-bleed photography + overlaid text in white
+
+### Inputs & Forms
+- Minimal form presence on the marketing site
+- Switch elements: border-radius 20px (the only rounded element), border 1px solid `#DDDDDD`
+- Cookie banner input style: white text on black with `#7D7D7D` borders
+
+### Navigation
+- **Desktop**: Centered bull logo, "MENU" hamburger with icon on left, search icon + bookmarks icon on right
+- **Background**: Transparent (inherits black page background)
+- **Sticky**: Fixed to top, floats above content
+- **No visible borders or shadows** — elements float in the darkness
+- **"MENU" label**: White text at 14px weight 400, uppercase, accompanies hamburger icon
+- **Hexagonal motifs**: Pause button on hero sections uses hexagonal outline shape
+
+### Image Treatment
+- **Hero**: Full-viewport video sections (100vh) with cinematic event/vehicle footage
+- **Event photography**: Full-bleed aerial shots of Lamborghini Arena events
+- **Vehicle imagery**: High-contrast studio shots on dark backgrounds, full-width
+- **Aspect ratios**: Predominantly 16:9 and wider for cinematic feel
+- **Dark gradient overlays**: Subtle darkening at top/bottom edges of video to ensure text legibility
+
+### Distinctive Components
+- **Hexagonal Pause Button**: Video control uses a hexagonal outline (matching the brand's geometric DNA from the typeface), positioned bottom-right of hero sections
+- **Progress Bar**: Thin white line at bottom of hero sections indicating video/slide progress
+- **Badge/Tag**: bg `#969696`, text white, padding 8px, fontSize 10px, borderRadius 2px — tiny metallic pills
+
+## 5. Layout Principles
+
+### Spacing System
+- **Base unit**: 8px
+- **Full scale**: 2px, 4px, 5px, 8px, 10px, 12px, 15px, 16px, 20px, 24px, 32px, 40px, 48px, 56px
+- **Button padding**: 16px (ghost), 24px (gold accent)
+- **Section padding**: 48–56px vertical, 40px horizontal
+- **Small spacing**: 2–5px for fine adjustments (badge padding, border spacing)
+
+### Grid & Container
+- **Framework**: Bootstrap grid system (container + row + col)
+- **Max width**: 1440px (largest breakpoint)
+- **Columns**: Standard 12-column Bootstrap grid
+- **Full-bleed**: Hero sections break out of grid to fill viewport edge-to-edge
+- **Content areas**: Centered within 1200px max-width containers
+
+### Whitespace Philosophy
+Lamborghini uses darkness as whitespace. The generous black expanses between content blocks serve the same function as white space in a light design — creating breathing room that elevates each element to the status of exhibit. A model name floating in the middle of a black viewport has the same visual weight as a gallery piece on a white wall. The absence of color IS the design.
+
+### Border Radius Scale
+| Value | Context |
+|-------|---------|
+| 0px | Default for everything — buttons, cards, containers, images |
+| 1px | Subtle span elements |
+| 2px | Badges, close buttons, cookie elements — barely perceptible |
+| 20px | Toggle switches only — the sole rounded element |
+
+## 6. Depth & Elevation
+
+| Level | Treatment | Use |
+|-------|-----------|-----|
+| Level 0 (Abyss) | `#000000` flat | Page background, deepest layer |
+| Level 1 (Surface) | `#181818` or `#202020` | Cards, content panels, elevated sections |
+| Level 2 (Overlay) | `rgba(0,0,0,0.7)` | Modal backdrops, video dimming |
+| Level 3 (Fog) | `rgba(0,0,0,0.5)` | Lighter overlays, hover states |
+| Level 4 (Mist) | `rgba(0,0,0,0.25)` | Subtle depth hints |
+
+### Shadow Philosophy
+Lamborghini achieves depth through surface color layering rather than shadows. On a black canvas, traditional drop shadows are invisible — instead, the system creates elevation by shifting from absolute black to progressively lighter dark grays: `#000000` → `#181818` → `#202020` → `#494949`. This "darkness gradient" approach means that elevated elements are literally lighter than their surroundings, inverting the traditional shadow model.
+
+### Decorative Depth
+- Full-bleed video provides atmospheric depth through cinematic lighting
+- The hexagonal pause button floats with a thin white outline stroke
+- Progress bars at hero section bottoms create a subtle horizon line
+- No gradients, glows, or blur effects on UI elements — the photography provides all visual richness
+
+## 7. Do's and Don'ts
+
+### Do
+- Use absolute black (`#000000`) as the primary background — never dark gray as a substitute
+- Apply Lamborghini Gold (`#FFC000`) exclusively for primary CTA buttons — never for decorative purposes
+- Set all display headings in uppercase with LamboType — the brand voice is always SHOUTING
+- Use zero border-radius on buttons and cards — sharp angles are non-negotiable
+- Maintain tight line-heights (0.92–1.19) on display type to create dense, architectural text blocks
+- Use the transparent ghost button (white border, 50% opacity) as the secondary CTA on dark backgrounds
+- Let full-viewport video/photography carry emotional weight — UI is infrastructure, not decoration
+- Reserve hexagonal geometry for UI icons and the video control button
+- Use weight 400 (regular) for headlines — the typeface is distinctive enough without bold emphasis
+- Keep the gray palette achromatic — all neutrals are pure gray without color tinting
+
+### Don't
+- Introduce additional accent colors beyond gold — the monochrome-plus-gold system is sacred
+- Apply border-radius to buttons or cards — curved edges contradict the angular vehicle aesthetic
+- Use LamboType in italic or decorative styles — the brand is always upright and direct
+- Add gradients to buttons or surfaces — depth comes from surface layering, not blending
+- Use light backgrounds as the primary canvas — darkness is the default state, light is the exception
+- Mix lowercase into display headings — the uppercase convention communicates authority and power
+- Add hover animations with scale or translate — interactions should be color-only (background/opacity shifts)
+- Use Open Sans for display text — LamboType must handle all visible typography
+- Create busy layouts with many small elements — Lamborghini's design is about singular, bold statements
+- Apply shadows to elements — on a black canvas, shadows are meaningless; use surface color shifts instead
+
+## 8. Responsive Behavior
+
+### Breakpoints
+| Name | Width | Key Changes |
+|------|-------|-------------|
+| Mobile Small | <425px | Single column, reduced type scale, stacked buttons |
+| Mobile | 425-576px | Single column, hamburger nav, hero text ~40px |
+| Tablet Small | 576-768px | 2-column grid begins, padding adjusts |
+| Tablet | 768-1024px | 2-column layout, expanded hero, vehicle cards side-by-side |
+| Desktop | 1024-1280px | Full navigation, 3+ column grids, display text at 80px |
+| Desktop Large | 1280-1440px | Full layout, hero at 120px display, max-width containers |
+| Wide | >1440px | Content centered, margins expand, hero fills viewport |
+
+### Touch Targets
+- Gold CTA buttons: 48px+ minimum height with 24px padding (exceeds WCAG 44×44px)
+- Ghost buttons: 48px+ with 16px padding
+- Hamburger menu: large touch target (~48px square)
+- Hexagonal pause button: approximately 48px diameter
+
+### Collapsing Strategy
+- **Navigation**: Always hamburger-based ("MENU" + icon) — no horizontal nav expansion on any breakpoint
+- **Hero video**: Maintains full-viewport height across all breakpoints, adjusting object-fit
+- **Display type**: Scales from 120px (desktop) → 80px (tablet) → 54px/40px (mobile)
+- **Button layout**: Side-by-side on desktop, stacks vertically on mobile
+- **Grid columns**: 3-column → 2-column → 1-column progression
+- **Section spacing**: Reduces from 56px → 40px → 24px vertical padding
+
+### Image Behavior
+- Hero videos use `object-fit: cover` to maintain cinematic framing at all sizes
+- Vehicle images scale within their containers with maintained aspect ratios
+- Event photography crops to viewport width on narrow screens
+- Background images darken at edges to maintain text contrast on all viewports
+
+## 9. Agent Prompt Guide
+
+### Quick Color Reference
+- Primary CTA: "Lamborghini Gold (#FFC000)"
+- Background: "Absolute Black (#000000)"
+- Surface: "Charcoal (#202020)"
+- Heading text: "Pure White (#FFFFFF)"
+- Body text: "Ash (#7D7D7D)"
+- Link hover: "Link Blue (#3860BE)"
+- Accent: "Cyan Pulse (#29ABE2)"
+- Border: "Pure White (#FFFFFF) at 50% opacity"
+
+### Example Component Prompts
+- "Create a hero section with a full-viewport black background, the model name 'TEMERARIO' in LamboType at 120px uppercase weight 400 white text with 0.92 line-height, centered vertically, with a Lamborghini Gold (#FFC000) 'Discover More' button below — sharp corners, 0px radius, 24px padding, black text"
+- "Design a transparent ghost button with 1px solid white border at 50% opacity, white text at 14.4px uppercase with 0.2px letter-spacing, padding 16px, on a black background — hover state changes to Teal Action (#1EAEDB) background with 70% opacity"
+- "Build a navigation bar with zero visible background on absolute black, a centered bull logo, 'MENU' text label with hamburger icon on the left, and search + bookmark icons on the right — all in white, sticky position"
+- "Create a news card grid on charcoal (#202020) background with white headlines at 27px uppercase, body text in #7D7D7D at 16px, and a white underlined 'Read More' link that turns #3860BE on hover"
+- "Design a section divider using a 1px solid bottom border in #202020 on a black canvas — the elevation difference is purely through surface color shift, not shadow"
+
+### Iteration Guide
+When refining existing screens generated with this design system:
+1. Focus on ONE component at a time — Lamborghini's system is extreme and every element must feel aggressive
+2. Reference specific color names and hex codes from this document — the palette has only about 5 active colors
+3. Use natural language descriptions, not CSS values — "sharp-cut golden rectangle" not "border-radius: 0px; background: #FFC000"
+4. Describe the desired "feel" alongside specific measurements — "floating in total darkness" communicates the black canvas better than "background: #000000"
+5. Remember that UPPERCASE IS THE DEFAULT — if text isn't uppercase at display sizes, it probably should be

tesla/DESIGN.md

@@ -0,0 +1,286 @@
+# Design System Inspired by Tesla
+
+## 1. Visual Theme & Atmosphere
+
+Tesla's website is an exercise in radical subtraction — a digital showroom where the product is everything and the interface is almost nothing. The page opens with a full-viewport hero that fills the entire screen with cinematic car photography: three vehicles arranged on polished concrete against a hazy cityscape sky, with a single model name floating above in translucent white type. There are no decorative borders, no gradients, no patterns, no shadows. The UI exists only to provide just enough navigational structure to get out of the way. Every pixel that isn't product imagery is white space, and that restraint is the design system's most powerful statement.
+
+The color philosophy is almost ascetic: a single blue (`#3E6AE1`) for primary calls to action, three shades of dark gray for text hierarchy, and white for everything else. The entire emotional weight is carried by photography — sprawling landscape shots, studio-lit vehicle profiles, and atmospheric environmental compositions that stretch edge-to-edge across each viewport-height section. The UI chrome dissolves into the imagery. The navigation bar floats above the hero with no visible background, border, or shadow — the TESLA wordmark and five navigation labels simply exist in the space, trusting the content beneath them to provide sufficient contrast.
+
+Typography recently transitioned from Gotham to Universal Sans — a custom family split into "Display" for headlines and "Text" for body/UI elements — unifying the website, mobile app, and in-car software into a single typographic voice. The Display variant renders hero titles at 40px weight 500, while the Text variant handles everything from navigation (14px/500) to body copy (14px/400). The font carries a geometric precision with slightly humanist terminals that feels engineered rather than designed — exactly matching Tesla's brand identity of technology that doesn't need to announce itself. There are no text shadows, no text gradients, no decorative type treatments. Every letterform earns its place through clarity alone.
+
+**Key Characteristics:**
+- Full-viewport hero sections (100vh) dominated by cinematic car photography with minimal overlay UI
+- Near-zero UI decoration: no shadows, no gradients, no borders, no patterns anywhere on the page
+- Single accent color — Electric Blue (`#3E6AE1`) — used exclusively for primary CTA buttons
+- Universal Sans font family (Display + Text) unifying web, app, and in-car interfaces
+- Photography-first presentation where product imagery carries all emotional weight
+- Frosted-glass navigation concept with transparent/white nav that floats over hero content
+- 0.33s cubic-bezier transitions as the universal timing for all interactive state changes
+- Carousel-driven hero with dot indicators and edge arrow navigation for multiple vehicle showcases
+- "Ask a Question" persistent chatbot bar anchored to the viewport bottom
+
+## 2. Color Palette & Roles
+
+### Primary
+- **Electric Blue** (`#3E6AE1`): Primary CTA button background — a confident, mid-saturation blue (rgb 62, 106, 225) that stands alone as the only chromatic color in the entire interface. Used exclusively for "Order Now" and other primary action buttons
+- **Pure White** (`#FFFFFF`): Dominant background color for all surfaces, panels, navigation, and secondary button fills — the canvas that lets photography breathe
+
+### Secondary & Accent
+- **Promo Blue** (`#3E6AE1`): Blue also serves for promotional text ("0% APR Available") displayed over hero imagery in the same hue as the CTA — creating a visual link between incentive messaging and action
+- No secondary accent colors exist. Tesla deliberately avoids color variety to maintain extreme visual discipline
+
+### Surface & Background
+- **White Canvas** (`#FFFFFF`): Page background, navigation panel, dropdown menus, and all surface containers
+- **Light Ash** (`#F4F4F4`): Subtle alternate surface for section differentiation — barely perceptible shift from pure white (rgb 244, 244, 244)
+- **Carbon Dark** (`#171A20`): Dark surface color for hero text overlays and potential dark-mode contexts (rgb 23, 26, 32) — a warm near-black with a blue undertone
+- **Frosted Glass** (`rgba(255, 255, 255, 0.75)`): Semi-transparent white for navigation backdrop-filter effects on scroll
+
+### Neutrals & Text
+- **Carbon Dark** (`#171A20`): Primary heading and navigation text — the darkest text value (rgb 23, 26, 32), used for model names, nav labels, and hero titles on light backgrounds
+- **Graphite** (`#393C41`): Body text and secondary content (rgb 57, 60, 65) — the default paragraph color, slightly warmer than pure gray
+- **Pewter** (`#5C5E62`): Tertiary text for sub-links, secondary navigation links like "Learn" and "Order" (rgb 92, 94, 98)
+- **Silver Fog** (`#8E8E8E`): Placeholder text in input fields and disabled states (rgb 142, 142, 142)
+- **Cloud Gray** (`#EEEEEE`): Light borders and divider lines (rgb 238, 238, 238)
+- **Pale Silver** (`#D0D1D2`): Subtle UI borders and delineation (rgb 208, 209, 210)
+
+### Semantic & Accent
+- Tesla's marketing site avoids semantic color coding (no green/red/yellow status indicators). Error, success, and warning states follow standard browser defaults in form contexts
+- The blue CTA (`#3E6AE1`) serves as the sole interactive color signal
+
+### Gradient System
+- No gradients are used anywhere in the interface
+- Depth is achieved entirely through photography, whitespace, and the binary contrast between full-bleed imagery and clean white surfaces
+- The navigation achieves layering through opacity (frosted glass effect) rather than gradient or shadow
+
+## 3. Typography Rules
+
+### Font Family
+- **Display**: `Universal Sans Display`, -apple-system, Arial, sans-serif — used for hero titles and large model names. A geometric sans-serif with precisely engineered proportions, recently replacing Gotham to unify Tesla's digital ecosystem (website, mobile app, vehicle interface)
+- **Text/UI**: `Universal Sans Text`, -apple-system, Arial, sans-serif — used for navigation, body copy, buttons, and all UI text. Optimized for legibility at smaller sizes with slightly wider proportions than the Display variant
+- **No OpenType features** detected — typography is completely unembellished
+- **No italic variants** observed on the marketing site
+
+### Hierarchy
+
+| Role | Size | Weight | Line Height | Letter Spacing | Notes |
+|------|------|--------|-------------|----------------|-------|
+| Hero Title | 40px (2.50rem) | 500 | 48px (1.20) | normal | Universal Sans Display, white on dark hero imagery |
+| Product Name | 17px (1.06rem) | 500 | 20px (1.18) | normal | Universal Sans Text, model names in nav panel and cards |
+| Nav Item | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, primary navigation labels |
+| Body Text | 14px (0.88rem) | 400 | 20px (1.43) | normal | Universal Sans Text, paragraph and descriptive content |
+| Button Label | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, CTA button text |
+| Sub-link | 14px (0.88rem) | 400 | 20px (1.43) | normal | Tertiary links (Learn, Order, Experience) |
+| Promo Text | 22px (1.38rem) | 400 | 20px (0.91) | normal | White promotional text on hero ("0% APR Available") |
+| Category Label | 16px (est.) | 500 | — | normal | White text labels on category cards ("Sport Sedan") |
+
+### Principles
+- **"Normal" letter-spacing everywhere**: Unlike most modern tech brands that use negative tracking for headlines, Tesla uses default letter-spacing at every level. This reflects a philosophy that the typeface should speak for itself without manipulation
+- **Weight restraint**: Only two weights appear — 500 (medium) for headings/UI and 400 (regular) for body. No bold (700), no light (300). The system avoids typographic drama
+- **Unified font sizing**: Most UI text clusters at 14px with only hero titles (40px) and promo text (22px) breaking away. This extreme uniformity creates a sense of engineered consistency
+- **Display vs Text split**: The two-variant system (Display for hero, Text for UI) creates subtle optical correction without visible stylistic difference — they appear as the same typeface at different sizes
+- **No text transforms**: No uppercase text appears in the main navigation or CTAs — the lowercase approach reinforces Tesla's understated confidence
+
+## 4. Component Stylings
+
+### Buttons
+All buttons use barely-rounded rectangles (4px border-radius) — creating a sharp, technical aesthetic that mirrors the precision of the vehicles.
+
+**Primary CTA** — The main action button:
+- Default: bg `#3E6AE1` (Electric Blue), text `#FFFFFF`, fontSize 14px, fontWeight 500, padding 4px with inner content centering, borderRadius 4px, minHeight 40px, width 200px
+- Border: 3px solid transparent (reserves space for focus/active border animation)
+- Box Shadow: `rgba(0,0,0,0) 0px 0px 0px 2px inset` (invisible at rest, animates to visible on focus)
+- Transition: `border-color 0.33s, background-color 0.33s, color 0.33s, box-shadow 0.25s`
+- Hover: subtle darkening of blue background
+- Used for: "Order Now" calls to action
+
+**Secondary CTA** — The alternative action button:
+- Default: bg `#FFFFFF`, text `#393C41` (Graphite), same dimensions and border pattern as primary
+- Transition: identical timing to primary (0.33s)
+- Used for: "View Inventory" alongside primary CTA
+
+**Nav Button** — Top navigation items:
+- Default: bg transparent, text `#171A20` (Carbon Dark), fontSize 14px, fontWeight 500, borderRadius 4px, padding 4px 16px, minHeight 32px
+- Transition: `color 0.33s, background-color 0.33s`
+- Active/expanded: subtle background highlight
+- Used for: "Vehicles", "Energy", "Charging", "Discover", "Shop"
+
+**Text Link** — In-content actions:
+- Default: text `#5C5E62` (Pewter), fontSize 14px, fontWeight 400, no background, no border
+- Hover: underline decoration with box-shadow transition
+- Transition: `box-shadow 0.33s cubic-bezier(0.5, 0, 0, 0.75), color 0.33s`
+- Used for: "Learn", "Order", "Experience", "New", "Pre-Owned" links in dropdown panel
+
+### Cards & Containers
+
+**Vehicle Card** (Navigation panel):
+- Background: transparent (inherits panel white)
+- Border: none
+- Shadow: none
+- Content: vehicle image (transparent PNG) + model name centered below + two text links
+- Layout: 3-column grid within the dropdown panel
+- No hover animation on the card itself — interaction is via the text links beneath
+
+**Category Card** (Homepage lower section):
+- Background: full-bleed landscape photography
+- Border radius: approximately 12px (subtly rounded)
+- Overflow: hidden (clips image to rounded corners)
+- Text: white label in top-left corner ("Sport Sedan", "Midsize SUV")
+- Size: large format, approximately 2:1 aspect ratio
+- No shadow, no border, no overlay gradient — text relies on image darkness for contrast
+
+### Inputs & Forms
+- Background: transparent
+- Text color: `#171A20` (Carbon Dark)
+- Placeholder color: `#8E8E8E` (Silver Fog)
+- Border: minimal, inherits from browser defaults
+- Font: Universal Sans Text, 14px
+- The "Ask a Question" chatbot input bar sits at the viewport bottom with a clean white background and subtle border
+
+### Navigation
+- **Desktop**: Centered horizontal nav with TESLA wordmark (spaced uppercase letters) on the left, five category buttons center-aligned, and three icon buttons (help, globe/language, account) on the right
+- **Background**: White (transitions from transparent over dark hero to opaque white on scroll via class toggle `tds-site-header--white-background`)
+- **Dropdown panel**: Full-width white panel with 3-column vehicle grid + right sidebar text links, no shadow, no border — appears seamlessly below the nav
+- **Sticky behavior**: `sticky-without-slide` class — stays at top without slide-in animation
+- **Mobile**: Hamburger collapse pattern
+- **No visible separator** between nav and content — the nav blends with the hero
+
+### Image Treatment
+- **Hero**: Full-viewport (100vh) sections with cinematic photography — edge-to-edge, no padding, no margin
+- **Vehicle images**: Transparent PNG renders on white background in dropdown panel, studio-quality 3/4 angle shots
+- **Category cards**: Landscape photography with approximately 2:1 ratio, rounded corners (12px)
+- **Carousel**: Auto-advancing with dot indicators (3 dots) and left/right arrow navigation on edges
+- **Lazy loading**: Below-fold sections use lazy loading, rendering as blank white until scrolled into view
+
+### Persistent Chat Bar
+- Anchored to viewport bottom, visible across all sections
+- White background with subtle border
+- Contains: chat icon + "Ask a Question" label + placeholder text ("What's Dog Mode?") + send icon + "Schedule a Drive Today" secondary CTA
+- Schedule CTA has a teal/blue icon accent
+
+## 5. Layout Principles
+
+### Spacing System
+- **Base unit**: 8px
+- **Common values**: 8px (0.5rem), 16px (1rem), 21.44px (1.34rem)
+- **Button padding**: 4px (minimal outer) with content centering via flexbox, 4px 16px for nav items
+- **Section padding**: Full-viewport sections with content centered vertically
+- **Card gap**: approximately 16px between category cards
+
+### Grid & Container
+- **Max width**: approximately 1383px (full viewport width used for most content)
+- **Hero**: Full-bleed, edge-to-edge, 100vh sections
+- **Navigation panel**: 3-column grid for vehicle cards with right-aligned text sidebar (~70/30 split)
+- **Category cards**: 2-up horizontal layout (large left card + smaller right card)
+
+### Whitespace Philosophy
+Tesla uses whitespace as a luxury signal. The generous vertical spacing between sections (each section is a full viewport height) means you can only see one "message" at a time — one car, one model name, one CTA pair. This creates a gallery-like browsing experience where each scroll is a deliberate transition, not a continuous feed. White space is not empty — it's the frame that elevates each vehicle to the status of art piece.
+
+### Border Radius Scale
+| Value | Context |
+|-------|---------|
+| 0px | Most elements — sharp edges are the default |
+| 4px | Buttons (primary, secondary, nav items) — barely perceptible rounding |
+| ~12px | Category cards — noticeable but restrained rounding on larger surfaces |
+| 50% | Carousel dot indicators — perfect circles |
+
+## 6. Depth & Elevation
+
+| Level | Treatment | Use |
+|-------|-----------|-----|
+| Level 0 (Flat) | No shadow, no border | Default state for all elements — cards, panels, buttons at rest |
+| Level 1 (Frost) | `rgba(255,255,255,0.75)` backdrop | Navigation bar on scroll — frosted glass transparency |
+| Level 2 (Overlay) | `rgba(128,128,128,0.65)` | Modal overlays and region/cookie popups |
+| Level 3 (Subtle) | `rgba(0,0,0,0.05)` | Minimal shadow hints on rare hover states |
+
+### Shadow Philosophy
+Tesla's approach to elevation is essentially "none." The site avoids box-shadows entirely in its primary interface. Depth is communicated through three alternative strategies:
+1. **Z-index layering**: The sticky navigation sits above hero content through positioning, not shadow
+2. **Opacity-based transparency**: The frosted glass nav and overlay modals use background-color opacity rather than shadow to indicate layering
+3. **Photography-as-depth**: The full-bleed images create their own visual depth through perspective, lighting, and composition — making UI shadows redundant
+
+### Decorative Depth
+- No gradients, glows, or atmospheric effects on UI elements
+- The hero imagery itself provides all visual richness — sunset skies, reflected light on car surfaces, ground shadows from studio lighting
+- The carousel arrow buttons use a semi-transparent white background to float above the hero imagery without disrupting it
+
+## 7. Do's and Don'ts
+
+### Do
+- Let photography dominate every screen — the product IS the design
+- Use Electric Blue (`#3E6AE1`) exclusively for primary CTAs — never for decorative purposes
+- Maintain viewport-height sections for major content blocks — one message per screen
+- Keep typography at weight 400-500 only — no bold, no light, no extremes
+- Use 4px border-radius for all interactive elements — precision over playfulness
+- Trust whitespace as a luxury signal — never fill available space just because it's empty
+- Keep all transitions at 0.33s — consistency in motion is as important as consistency in color
+- Use transparent PNG vehicle imagery on white backgrounds for product showcases
+- Center CTAs horizontally below model names — the vertical rhythm is model → subtitle → buttons
+- Maintain the Display/Text font split — Display for hero-scale text only, Text for everything else
+
+### Don't
+- Add shadows to any element — elevation through shadow contradicts the flat, gallery aesthetic
+- Use more than one chromatic color besides the blue CTA — the palette is intentionally monochrome-plus-one
+- Apply gradients, patterns, or decorative backgrounds to surfaces — white and photography are the only backgrounds
+- Use text larger than 40px on the web — the typography is deliberately restrained even at hero scale
+- Add borders to cards or containers — separation is achieved through spacing, not lines
+- Use uppercase text transforms — Tesla's confidence is expressed through lowercase calm
+- Introduce rounded-pill buttons or large border-radii — the 4px radius is deliberate and precise
+- Override the Universal Sans family with other typefaces — cross-platform consistency is a core brand value
+- Add hover animations with scale/translate transforms — Tesla's interactions are color-only (background and border transitions)
+- Clutter the viewport with multiple CTAs — every screen should have at most two action buttons
+
+## 8. Responsive Behavior
+
+### Breakpoints
+| Name | Width | Key Changes |
+|------|-------|-------------|
+| Mobile | <768px | Single-column layout, hamburger nav replaces horizontal labels, hero text scales to ~28px, CTA buttons stack vertically, category cards become full-width |
+| Tablet | 768-1024px | 2-column nav panel, hero maintains full-viewport height, CTAs remain side-by-side, reduced horizontal padding |
+| Desktop | 1024-1440px | Full horizontal nav, 3-column vehicle grid in dropdown, hero at 40px, side-by-side CTAs at 200px/160px width |
+| Large Desktop | >1440px | Content remains centered, hero photography scales to fill wider viewports, max-width container for nav panel content |
+
+### Touch Targets
+- Primary CTA buttons: 200px × 40px minimum (well above 44×44px WCAG requirement)
+- Nav buttons: minimum 32px height with 4px 16px padding — adequate touch targets
+- Carousel arrows: ~44px square white semi-transparent buttons at viewport edges
+- Text links ("Learn", "Order"): 14px text with adequate line-height spacing for touch
+
+### Collapsing Strategy
+- **Navigation**: Horizontal category buttons (Vehicles, Energy, Charging, Discover, Shop) collapse to a hamburger/drawer menu on mobile
+- **Hero CTA pair**: Side-by-side buttons on desktop stack vertically on mobile
+- **Category cards**: 2-up horizontal layout collapses to single-column full-width on mobile
+- **Vehicle grid**: 3-column grid in desktop nav panel becomes 2-column on tablet, single-column on mobile
+- **Spacing**: Section vertical padding remains generous (viewport-height sections) but horizontal padding reduces
+
+### Image Behavior
+- Hero images are fully responsive and fill the entire viewport at every breakpoint
+- Vehicle carousel images use `object-fit: cover` to maintain cinematic composition across widths
+- Transparent PNG vehicle images in the nav panel scale proportionally within their grid cells
+- Category card images maintain their landscape ratio and clip via `overflow: hidden` with border-radius
+
+## 9. Agent Prompt Guide
+
+### Quick Color Reference
+- Primary CTA: "Electric Blue (#3E6AE1)"
+- Background: "Pure White (#FFFFFF)"
+- Heading text: "Carbon Dark (#171A20)"
+- Body text: "Graphite (#393C41)"
+- Tertiary text: "Pewter (#5C5E62)"
+- Placeholder: "Silver Fog (#8E8E8E)"
+- Alternate surface: "Light Ash (#F4F4F4)"
+- Dark surface: "Carbon Dark (#171A20)"
+
+### Example Component Prompts
+- "Create a hero section with a full-viewport background image, centered 'Model Y' title in Universal Sans Display at 40px weight 500 in white, a subtitle line below, and two buttons side by side: a primary Electric Blue (#3E6AE1) 'Order Now' button and a secondary white 'View Inventory' button, both with 4px border-radius and 40px height"
+- "Design a navigation bar with a spaced-letter wordmark on the left, five text buttons (14px, weight 500, Carbon Dark #171A20) centered, and three icon buttons on the right, all on a white background with no shadow or border"
+- "Build a vehicle card grid with 3 columns, each card showing a transparent-background car image above a model name (17px, weight 500, Carbon Dark) and two text links (14px, weight 400, Pewter #5C5E62) labeled 'Learn' and 'Order', on a pure white surface with no borders or shadows"
+- "Create a category card with full-bleed landscape photography, 12px border-radius, overflow hidden, and a white text label ('Sport Sedan') positioned in the top-left corner with no overlay gradient"
+- "Design a persistent bottom bar with a chat input ('Ask a Question' placeholder), a send icon, and a secondary CTA ('Schedule a Drive Today') with a teal icon, anchored to the viewport bottom on a white background"
+
+### Iteration Guide
+When refining existing screens generated with this design system:
+1. Focus on ONE component at a time — Tesla's system is so minimal that each element must be pixel-perfect
+2. Reference specific color names and hex codes from this document — there are only 6-7 colors in the entire system
+3. Use natural language descriptions, not CSS values — "barely rounded corners" not "border-radius: 4px"
+4. Describe the desired "feel" alongside specific measurements — "gallery-like silence between sections" communicates the whitespace philosophy better than "margin-bottom: 100vh"
+5. Always verify that photography is doing the emotional heavy-lifting — if the UI itself feels "designed," it's too much