/* ============================================================
   Feedmill Recounter — Design System Foundation
   Flat design tokens, base reset, and utility components
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Teal primary */
  --color-primary-50: #F0FDFA;
  --color-primary-100: #CCFBF1;
  --color-primary-200: #99F6E4;
  --color-primary-300: #5EEAD4;
  --color-primary-400: #2DD4BF;
  --color-primary-500: #14B8A6;
  --color-primary-600: #0D9488;
  --color-primary-700: #0F766E;
  --color-primary-800: #115E59;
  --color-primary-900: #134E4A;
  --color-primary: #0D9488;

  /* Orange accent */
  --color-accent-50: #FFF7ED;
  --color-accent-100: #FFEDD5;
  --color-accent-200: #FED7AA;
  --color-accent-300: #FDBA74;
  --color-accent-400: #FB923C;
  --color-accent-500: #F97316;
  --color-accent-600: #EA580C;
  --color-accent-700: #C2410C;
  --color-accent-800: #9A3412;
  --color-accent-900: #7C2D12;
  --color-accent: #EA580C;

  /* Neutrals */
  --color-neutral-50: #F8FAFC;
  --color-neutral-100: #F1F5F9;
  --color-neutral-200: #E2E8F0;
  --color-neutral-300: #CBD5E1;
  --color-neutral-400: #94A3B8;
  --color-neutral-500: #64748B;
  --color-neutral-600: #475569;
  --color-neutral-700: #334155;
  --color-neutral-800: #1E293B;
  --color-neutral-900: #0F172A;

  /* Status */
  --color-success: #16A34A;
  --color-success-50: #DCFCE7;
  --color-success-700: #15803D;
  --color-warning: #F59E0B;
  --color-warning-50: #FEF3C7;
  --color-warning-800: #92400E;
  --color-error: #DC2626;
  --color-error-50: #FEE2E2;
  --color-info: #0EA5E9;
  --color-info-50: #E0F2FE;
  --color-info-800: #075985;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ---------- Reset / Normalize ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-neutral-900);
  background: var(--color-neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-700);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  font-weight: var(--font-bold);
  color: var(--color-neutral-900);
}

table {
  border-collapse: collapse;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ---------- Accessibility ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 1000;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  background: var(--color-white, #fff);
  border-bottom: 1px solid var(--color-neutral-200);
  padding: var(--space-4) 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header h1 {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav a {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-600);
  transition: color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
}

/* ---------- Main ---------- */
main {
  padding: var(--space-8) 0;
  min-height: calc(100vh - 160px);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-neutral-200);
  padding: var(--space-6) 0;
  text-align: center;
  color: var(--color-neutral-500);
  font-size: var(--text-sm);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-700);
  border-color: var(--color-primary-700);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-primary-50);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-700);
  border-color: var(--color-accent-700);
}

.btn-ghost {
  background: transparent;
  color: var(--color-neutral-600);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

/* ---------- Card ---------- */
.card {
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: 9999px;
  line-height: 1.4;
  white-space: nowrap;
}

.badge-success {
  background: var(--color-success-50);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-50);
  color: var(--color-warning-800);
}

.badge-error {
  background: var(--color-error-50);
  color: var(--color-error);
}

.badge-info {
  background: var(--color-info-50);
  color: var(--color-info-800);
}

.badge-neutral {
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-700);
}

.form-input,
.form-select {
  display: block;
  width: 100%;
  max-width: 480px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-neutral-900);
  background: #fff;
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
  outline: none;
}

.form-input::placeholder {
  color: var(--color-neutral-400);
}

/* ---------- Table ---------- */
.results-table {
  width: 100%;
  margin-bottom: var(--space-6);
}

.results-table th,
.results-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-neutral-200);
  font-size: var(--text-sm);
}

.results-table th {
  background: var(--color-neutral-100);
  font-weight: var(--font-semibold);
  color: var(--color-neutral-700);
  white-space: nowrap;
}

.results-table tbody tr:hover {
  background: var(--color-neutral-50);
}

/* ---------- Status Colors ---------- */
.status-pending { color: var(--color-warning); }
.status-running { color: var(--color-info); }
.status-completed { color: var(--color-success); }
.status-failed { color: var(--color-error); }
.status-cancelled { color: var(--color-neutral-400); }

/* ---------- Job Info Panel ---------- */
.job-info {
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.job-info p {
  margin-bottom: var(--space-2);
}

.job-info p:last-child {
  margin-bottom: 0;
}

/* ---------- Model List ---------- */
.model-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.model-item {
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.model-item label {
  display: inline;
  font-weight: var(--font-normal);
}

.model-item .classes {
  color: var(--color-neutral-500);
  margin-left: var(--space-2);
  font-size: var(--text-sm);
}

.model-item .classes.unknown {
  color: var(--color-error);
}

/* ---------- Filter Group ---------- */
.filter-group {
  margin-top: var(--space-2);
  margin-left: var(--space-6);
}

.filter-group label {
  display: inline;
  font-size: var(--text-sm);
  margin-right: var(--space-2);
}

.filter-group select {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
}

/* ---------- Download Button ---------- */
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-success);
  color: #fff;
  padding: var(--space-1) var(--space-3);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  transition: background var(--transition-fast);
}

.download-btn:hover {
  background: var(--color-success-700);
  color: #fff;
}

/* ---------- Auto-refresh ---------- */
.auto-refresh {
  background: var(--color-neutral-100);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-neutral-200);
  text-align: center;
  color: var(--color-neutral-600);
  font-size: var(--text-sm);
}

/* ---------- Status Page ---------- */
.status-page {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.status-header {
  margin-bottom: var(--space-2);
}

.status-header-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.status-badge {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-time {
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
}

.job-id {
  font-size: var(--text-2xl);
}

/* --- Progress --- */
.progress-section {
  padding: var(--space-5) var(--space-6);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-2);
}

.progress-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-600);
}

.progress-pct {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-primary);
}

.progress-track {
  width: 100%;
  height: 12px;
  background: var(--color-neutral-200);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary-500);
  border-radius: var(--radius-sm);
  transition: width 0.4s ease;
}

.current-model {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
}

.model-label {
  color: var(--color-neutral-500);
}

.model-name {
  font-weight: var(--font-semibold);
  color: var(--color-neutral-800);
  margin-left: var(--space-1);
}

/* --- Live Preview --- */
.live-preview-section {
  padding: var(--space-5) var(--space-6);
}

.section-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-neutral-800);
}

.live-preview-wrap {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: var(--color-neutral-900);
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.live-preview-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
}

.preview-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral-400);
  font-size: var(--text-sm);
}

/* --- Video Thumb --- */
.video-thumb-section {
  padding: var(--space-5) var(--space-6);
}

.video-thumb-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--color-neutral-900);
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.video-thumb {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-neutral-400);
  font-size: var(--text-sm);
}

.video-fallback-icon {
  font-size: var(--text-2xl);
}

/* --- Results Grid --- */
.results-section {
  margin-top: var(--space-2);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.result-card {
  padding: var(--space-5);
}

.result-model {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-neutral-800);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-neutral-200);
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  line-height: 1.2;
}

.stat-loading { color: var(--color-accent); }
.stat-unloading { color: var(--color-info); }
.stat-net { color: var(--color-primary); }

.stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-1);
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.meta-item {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
}

.result-download {
  width: 100%;
  justify-content: center;
}

/* --- Error Alert --- */
.error-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--color-error-50);
  border-color: var(--color-error);
  padding: var(--space-4) var(--space-5);
}

.error-icon {
  font-size: var(--text-xl);
  line-height: 1;
  flex-shrink: 0;
}

.error-content strong {
  display: block;
  color: var(--color-error);
  margin-bottom: var(--space-1);
}

.error-content p {
  color: var(--color-neutral-700);
  font-size: var(--text-sm);
  margin: 0;
}

/* ---------- Utility ---------- */
.error { color: var(--color-error); }
.warning { color: var(--color-warning); }

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Dark Mode ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-neutral-50: #0F172A;
    --color-neutral-100: #1E293B;
    --color-neutral-200: #334155;
    --color-neutral-300: #475569;
    --color-neutral-400: #64748B;
    --color-neutral-500: #94A3B8;
    --color-neutral-600: #CBD5E1;
    --color-neutral-700: #E2E8F0;
    --color-neutral-800: #F1F5F9;
    --color-neutral-900: #F8FAFC;

    --color-primary-50: #134E4A;
    --color-primary-100: #115E59;
    --color-primary-500: #14B8A6;
    --color-primary-600: #2DD4BF;
    --color-primary-700: #5EEAD4;

    --color-accent-50: #7C2D12;
    --color-accent-100: #9A3412;
    --color-accent-500: #F97316;
    --color-accent-700: #FB923C;

    --color-success-50: #14532D;
    --color-warning-50: #713F12;
    --color-error-50: #7F1D1D;
    --color-info-50: #164E63;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  }

  body {
    color: var(--color-neutral-900);
    background: var(--color-neutral-50);
  }

  .site-header {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-200);
  }

  a {
    color: var(--color-primary-600);
  }

  a:hover {
    color: var(--color-primary-700);
  }

  h1, h2, h3, h4, h5, h6 {
    color: var(--color-neutral-900);
  }

  .card {
    background: var(--color-neutral-100);
    border-color: var(--color-neutral-200);
  }

  .btn-primary {
    background: var(--color-primary-600);
    border-color: var(--color-primary-600);
  }

  .btn-primary:hover:not(:disabled) {
    background: var(--color-primary-500);
    border-color: var(--color-primary-500);
  }

  .form-input,
  .form-select {
    background: var(--color-neutral-100);
    color: var(--color-neutral-900);
    border-color: var(--color-neutral-300);
  }

  .results-table th {
    background: var(--color-neutral-200);
  }

  .site-footer {
    border-color: var(--color-neutral-200);
  }

  .error-alert {
    background: var(--color-error-50);
  }

  .skip-link:focus {
    outline-color: var(--color-primary-600);
  }

  :focus-visible {
    outline-color: var(--color-primary-500);
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header,
  .site-footer,
  .skip-link,
  .btn,
  .copy-btn,
  .submit-area,
  .auto-refresh,
  .model-toggle-btns {
    display: none !important;
  }

  main {
    padding: 0;
    min-height: auto;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  body {
    color: #000;
    background: #fff;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }

  a.btn::after,
  a.skip-link::after {
    content: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .site-header .container {
    flex-direction: column;
    text-align: center;
  }

  .site-nav {
    gap: var(--space-4);
  }

  main {
    padding: var(--space-6) 0;
  }

  .results-table {
    display: block;
    overflow-x: auto;
  }

  .form-input,
  .form-select {
    max-width: 100%;
  }
}

@media (min-width: 641px) and (max-width: 768px) {
  .site-header .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    padding-inline: var(--space-4);
  }
}

@media (min-width: 1025px) and (max-width: 1280px) {
  .container {
    max-width: 1024px;
  }
}