/* ==========================================================================
   F1 PREDICTOR 2026 — Dashboard design system
   Palette, type and component classes ported 1:1 from the approved reference
   (F1PredictorDashboard.jsx / PALETTE_LIGHT / PALETTE_DARK). Layout spacing
   utilities come from Tailwind (loaded via CDN in base.html); everything
   here is what Tailwind can't give us: palette tokens, fonts, and the
   handful of bespoke components (gauge, pie, nav, chips, grid editor).
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Titillium+Web:wght@400;600;700;900&family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --red: #E10600;
  --red-dark: #B80500;
  --red-tint: #FDEDEC;
  --bg: #F4F5F7;
  --surface: #FFFFFF;
  --surface-alt: #EEF0F3;
  --border: #E3E5EA;
  --text: #15151E;
  --sub: #6B7280;
  --muted: #9AA0AC;
  --navy: #16233F;
  --navy-light: #22345A;
  --purple: #9D4EDD;
  --purple-tint: #F4EBFC;
  --green: #1DA36B;
  --amber: #D97B0A;
  --gridline: #ECEDF1;
}

[data-theme="dark"] {
  --red: #FF3B30;
  --red-dark: #E8002D;
  --red-tint: rgba(255,59,48,0.14);
  --bg: #0A0C10;
  --surface: #15181F;
  --surface-alt: #1C2028;
  --border: #2B3039;
  --text: #F1F2F5;
  --sub: #9BA2AF;
  --muted: #6B7280;
  --navy: #0D1526;
  --navy-light: #16233F;
  --purple: #B983F2;
  --purple-tint: rgba(157,78,221,0.2);
  --green: #2ECC8F;
  --amber: #F0A93B;
  --gridline: #2B3039;
}

/* Image Banner Styles */
.image-banner-row {
  perspective: 1000px;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  padding: 0 20px;
}

.img-slot {
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.img-slot:hover {
  z-index: 10;
}

.img-slot img {
  transition: all 0.4s ease;
  object-fit: contain;
  object-position: center;
  max-width: 100%;
  max-height: 100%;
}

.img-slot:hover img {
  transform: scale(1.03);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .image-banner-row {
    padding: 0 10px;
  }

  .img-slot {
    min-width: 100% !important;
    height: auto !important;
    min-height: 220px;
  }
}

@media (max-width: 480px) {
  .image-banner-row {
    gap: 1rem !important;
  }

  .img-slot {
    min-height: 200px;
  }
}

/* Pop Animation */
@keyframes popIn {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.img-slot {
  animation: popIn 0.6s ease-out forwards;
}

.img-slot:nth-child(1) {
  animation-delay: 0.1s;
}

.img-slot:nth-child(2) {
  animation-delay: 0.2s;
}

.img-slot:nth-child(3) {
  animation-delay: 0.3s;
}

/* Shine Effect */
.img-slot::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to bottom right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(45deg);
  transition: all 0.6s ease;
  opacity: 0;
}

.img-slot:hover::before {
  animation: shine 0.6s ease;
}

@keyframes shine {
  0% {
    left: -50%;
    top: -50%;
    opacity: 1;
  }
  100% {
    left: 150%;
    top: 150%;
    opacity: 0;
  }
}

/* Export Cards */
.export-card {
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
}

.export-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 10px 30px rgba(225, 6, 0, 0.2);
}

.export-card:active {
  transform: translateY(-2px) scale(0.98);
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  transition: background-color .2s ease, color .2s ease;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

::selection { background: var(--red); color: #fff; }

/* Focus visibility (accessibility floor) */
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--surface-alt); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ---- Type ---- */
.f1-display { font-family: 'Titillium Web', sans-serif; }
.f1-mono { font-family: 'IBM Plex Mono', monospace; }
.fs-9  { font-size: 9px; }
.fs-10 { font-size: 10px; }
.fs-11 { font-size: 11px; }

/* ---- Surfaces ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.surface-alt { background: var(--surface-alt); }
.bg-app { background: var(--bg); }

/* ---- Buttons ---- */
.btn-primary {
  background: var(--red);
  color: #fff;
  font-weight: 700;
  border-radius: .5rem;
  padding: .6rem 1.1rem;
  transition: background-color .15s ease, transform .1s ease;
}
.btn-primary:hover { background: var(--red-dark); }
.btn-primary:active { transform: scale(.98); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: .5rem;
  padding: .5rem 1rem;
  font-weight: 600;
  transition: background-color .15s ease;
}
.btn-ghost:hover { background: var(--surface-alt); }

/* ---- Nav ---- */
.f1-nav {
  position: sticky; top: 0; z-index: 40;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.f1-nav-logo {
  width: 32px; height: 32px; border-radius: .5rem;
  background: var(--red); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; flex-shrink: 0;
}
.f1-nav-link {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  color: var(--sub); padding-bottom: 4px; white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.f1-nav-link:hover { color: var(--text); }
.f1-nav-link.is-active { color: var(--red); border-color: var(--red); }
.f1-live-pill {
  background: var(--red); color: #fff; font-size: 11px; font-weight: 700;
  padding: .35rem .75rem; border-radius: 999px; display: inline-flex; align-items: center; gap: .4rem;
}
.f1-live-dot {
  width: 6px; height: 6px; border-radius: 999px; background: var(--green);
  display: inline-block; animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.theme-toggle {
  width: 34px; height: 34px; border-radius: .5rem;
  border: 1px solid var(--border); background: var(--surface-alt);
  display: flex; align-items: center; justify-content: center;
  color: var(--text); flex-shrink: 0;
}

/* ---- Badges / chips ---- */
.badge-purple {
  color: var(--purple); background: var(--purple-tint);
  font-family: 'IBM Plex Mono', monospace; font-weight: 700;
  font-size: 9px; text-transform: uppercase; letter-spacing: .08em;
  padding: 2px 6px; border-radius: 4px;
}
.chip {
  border: 1px solid var(--border); border-radius: .5rem;
  padding: .5rem .75rem; background: var(--surface);
}
.tyre-dot { border-radius: 999px; display: inline-block; border: 1px solid rgba(0,0,0,.15); }

/* ---- Stat / result cards ---- */
.stat-chip .stat-value { color: var(--red); font-family: 'IBM Plex Mono', monospace; font-weight: 700; }
.stat-chip .stat-value.is-empty { color: var(--muted); }

.result-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
  padding: 1rem;
  transition: transform .12s ease, box-shadow .12s ease;
}
.result-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.06); }
.result-card .rank-swatch { width: 4px; border-radius: 4px; position: absolute; left: 0; top: .75rem; bottom: .75rem; }

/* ---- Empty / dashed placeholders ---- */
.empty-state, .img-slot {
  border: 1px dashed var(--border);
  border-radius: .75rem;
  color: var(--muted);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}

/* ---- Confidence gauge ---- */
.gauge-wrap { position: relative; width: 100%; display: flex; align-items: center; justify-content: center; }
.gauge-value { position: absolute; text-align: center; }
.gauge-value .num { font-family: 'IBM Plex Mono', monospace; font-weight: 700; font-size: 28px; color: var(--text); }
.gauge-value .lbl { font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--sub); }

/* ---- Track Conditions (navy hero widget) — cinematic video background ---- */
.navy-panel {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #fff;
  border-radius: .75rem;
  border: 1px solid rgba(255,255,255,.08);
}
.navy-panel__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  opacity: 0.42;
  filter: saturate(1.15) contrast(1.1) brightness(0.85);
}
.navy-panel__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(225,6,0,.28), transparent 55%),
    linear-gradient(180deg, rgba(10,14,22,.78) 0%, rgba(10,14,22,.55) 45%, rgba(10,14,22,.88) 100%);
}
.navy-panel__grain {
  position: absolute;
  inset: 0;
  opacity: .08;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

/* ---- Session cards ---- */
.session-card {
  border-radius: .75rem; border: 1px solid var(--border);
  background: var(--surface); padding: 1rem; text-align: left;
  transition: border-color .15s ease, background-color .15s ease;
}
.session-card.is-active { background: var(--red); border-color: var(--red); color: #fff; }
.session-card.is-active .session-sub { color: rgba(255,255,255,.85); }

/* ---- Target pill switcher ---- */
.target-pill {
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 600;
  padding: .35rem .85rem; border-radius: .4rem; text-transform: uppercase; letter-spacing: .04em;
  color: var(--sub); background: transparent;
}
.target-pill.is-active { background: var(--red); color: #fff; }

/* ---- Charts grid layout ---- */
.charts-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.charts-grid-3 { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 768px) {
  .charts-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .charts-grid-3 { grid-template-columns: repeat(3, 1fr); }
}
.chart-box { position: relative; height: 220px; }
.chart-box.tall { height: 280px; }
.chart-box.short { height: 160px; }

/* ---- Results table ---- */
.f1-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.f1-table th {
  text-align: left; font-size: 10px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--sub); font-weight: 700; padding: .6rem .75rem; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.f1-table td { padding: .55rem .75rem; border-bottom: 1px solid var(--gridline); vertical-align: middle; }
.f1-table tbody tr { transition: background-color .1s ease; }
.f1-table tbody tr:hover { background: var(--surface-alt); }
.f1-table.compact td, .f1-table.compact th { padding: .35rem .6rem; }
.team-bar { width: 4px; height: 22px; border-radius: 3px; display: inline-block; vertical-align: middle; }

/* ---- Manual grid editor ---- */
.grid-editor-list { max-height: 420px; overflow-y: auto; }
.grid-row { display: flex; align-items: center; gap: .6rem; padding: .4rem 0; border-bottom: 1px solid var(--gridline); }
.grid-row select {
  flex: 1; background: var(--surface-alt); border: 1px solid var(--border); color: var(--text);
  border-radius: .4rem; padding: .35rem .5rem; font-size: 13px;
}
.grid-row.is-duplicate select { border-color: var(--amber); }

/* ---- Selects / inputs shared ---- */
.f1-select, .f1-input {
  width: 100%; background: var(--surface-alt); color: var(--text);
  border: 1px solid var(--border); border-radius: .5rem; padding: .55rem .7rem; font-size: 14px;
  min-height: 40px;
  cursor: pointer;
}
.f1-select:disabled { opacity: .55; cursor: not-allowed; }
.f1-select option {
  background: var(--surface-alt);
  color: var(--text);
  padding: 8px;
}
.f1-select:hover {
  border-color: var(--red);
}

/* ---- Sliders (Analytics & Settings) ---- */
.f1-range { width: 100%; accent-color: var(--red); }

/* ---- Toggle switch ---- */
.f1-switch { position: relative; width: 40px; height: 22px; border-radius: 999px; background: var(--border); flex-shrink: 0; transition: background-color .15s ease; }
.f1-switch.is-on { background: var(--red); }
.f1-switch .knob { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .15s ease; }
.f1-switch.is-on .knob { transform: translateX(18px); }

/* ---- Sparkline ---- */
.sparkline { display: block; }

/* ---- Footer ---- */
.f1-footer { border-top: 1px solid var(--border); color: var(--muted); }

/* ---- Utility ---- */
.text-red { color: var(--red); }
.text-sub { color: var(--sub); }
.text-muted { color: var(--muted); }
.text-green { color: var(--green); }
.text-amber { color: var(--amber); }
.border-app { border-color: var(--border); }
.bg-surface { background: var(--surface); }
.bg-surface-alt { background: var(--surface-alt); }

/* Loading spinner */
@keyframes f1-spin { to { transform: rotate(360deg); } }
.f1-spin { animation: f1-spin .8s linear infinite; }

/* ---- AI Sidebar ---- */
.ai-sidebar {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.ai-sidebar.is-open {
  right: 0;
}

.ai-sidebar-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.ai-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
}

.ai-sidebar-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.ai-sidebar-icon {
  font-size: 1.5rem;
}

.ai-sidebar-close {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--border);
  border-radius: 8px;
  font-size: 1.5rem;
  color: var(--sub);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.ai-sidebar-close:hover {
  background: var(--red);
  color: white;
}

.ai-sidebar-body {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
}

.ai-sidebar-section {
  margin-bottom: 2rem;
}

.ai-sidebar-section:last-child {
  margin-bottom: 0;
}

.ai-sidebar-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.ai-sidebar-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ai-sidebar-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  transition: all 0.2s ease;
}

.ai-sidebar-option:hover {
  border-color: var(--navy-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.ai-sidebar-option.active {
  border-color: var(--red);
  background: var(--red-tint);
}

.ai-option-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.ai-option-content {
  flex: 1;
}

.ai-option-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.ai-option-desc {
  font-size: 0.85rem;
  color: var(--sub);
}

.ai-sidebar-model-details {
  background: var(--surface-alt);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.ai-model-details-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.ai-sidebar-detail {
  margin-bottom: 1rem;
}

.ai-sidebar-detail:last-child {
  margin-bottom: 0;
}

.ai-detail-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.ai-select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}

.ai-select:focus {
  outline: none;
  border-color: var(--red);
}

.ai-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.ai-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--red);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.ai-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.ai-slider-value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--sub);
}

.ai-sidebar-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.ai-info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--surface-alt);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--sub);
}

.ai-info-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.ai-info-text {
  flex: 1;
}

.ai-sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.ai-sidebar-apply {
  width: 100%;
  padding: 0.875rem;
  background: var(--red);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ai-sidebar-apply:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(225,6,0,0.3);
}

.ai-sidebar-skip {
  width: 100%;
  padding: 0.75rem;
  background: transparent;
  color: var(--sub);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ai-sidebar-skip:hover {
  border-color: var(--sub);
  color: var(--text);
}

/* AI Sidebar Trigger Button */
.ai-sidebar-trigger {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--red);
  color: white;
  border: none;
  box-shadow: 0 4px 16px rgba(225,6,0,0.4);
  cursor: pointer;
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  transition: all 0.3s ease;
}

.ai-sidebar-trigger:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(225,6,0,0.5);
}

.ai-sidebar-trigger.is-hidden {
  display: none;
}

/* Dark mode adjustments */
[data-theme="dark"] .ai-sidebar {
  background: var(--surface);
  border-left-color: var(--border);
  box-shadow: -4px 0 24px rgba(0,0,0,0.4);
}

[data-theme="dark"] .ai-sidebar-header {
  background: var(--surface-alt);
}

[data-theme="dark"] .ai-sidebar-option:hover {
  border-color: var(--purple);
}

[data-theme="dark"] .ai-sidebar-option.active {
  background: rgba(157,78,221,0.15);
}

[data-theme="dark"] .ai-sidebar-model-details {
  background: var(--surface-alt);
}

[data-theme="dark"] .ai-info-item {
  background: var(--surface-alt);
}

/* ---- AI Chat Interface ---- */
.ai-chat-container {
  display: flex;
  flex-direction: column;
  height: 400px;
  background: var(--surface-alt);
  border-radius: 10px;
  overflow: hidden;
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ai-chat-message {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.ai-chat-message-ai {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.ai-chat-message-user {
  align-self: flex-end;
  background: var(--red);
  color: white;
}

.ai-chat-text {
  word-wrap: break-word;
}

.ai-chat-input-area {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.ai-chat-input {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-alt);
  color: var(--text);
  font-size: 0.9rem;
}

.ai-chat-input:focus {
  outline: none;
  border-color: var(--red);
}

.ai-chat-send {
  padding: 0.6rem 1rem;
  background: var(--red);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.ai-chat-send:hover {
  background: var(--red-dark);
}

.ai-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* AI Mode Toggle Tabs */
.ai-mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.ai-mode-tab {
  flex: 1;
  padding: 0.5rem;
  background: transparent;
  border: none;
  color: var(--sub);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.ai-mode-tab:hover {
  background: var(--surface-alt);
  color: var(--text);
}

.ai-mode-tab.active {
  background: var(--red);
  color: white;
}

/* Loading Overlay Styles */
#prediction-loading-overlay {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Progress Bar Animation */
#run-progress div {
  transition: width 0.3s ease;
  color: white;
}
/* ── F1 Broadcast Grid — 2×2 staggered, pit wall, start/finish ── */
.f1-grid__wrap { max-width: 860px; margin: 18px auto; }
.f1-grid__header {
  display:flex; justify-content:space-between; align-items:center;
  padding: 8px 14px; margin-bottom:10px;
  background: linear-gradient(90deg, var(--navy) 0%, #1a2a4a 100%);
  color:#fff; border-radius:10px; font-size:10px; font-weight:800; letter-spacing:.14em; text-transform:uppercase;
}
.f1-grid__pit { opacity:.85; }
.f1-grid__finish { display:flex; align-items:center; gap:6px; }
.f1-grid__flag { font-size:14px; }
.f1-grid__trackline { height:2px; background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px); margin: 6px 0 2px; opacity:.6; }
.f1-grid {
  display:grid; gap:10px;
}
.f1-grid__row { display:grid; grid-template-columns: 1fr 1fr; gap:10px; }
.f1-grid__slot {
  min-height: 88px; border-radius:12px; background: var(--surface); border:1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,.06); transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  display:flex; align-items:stretch; overflow:hidden;
}
.f1-grid__slot:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(0,0,0,.12); }
.f1-grid__slot.is-over { border-color: var(--red); background: var(--red-tint); }
.f1-grid__slot.is-empty-slot { background: transparent; border:1px dashed var(--border); }
.f1-grid__slot.is-right { margin-top: 14px; } /* stagger right column down to mimic F1 start offset */
@media (max-width: 640px) {
  .f1-grid__row { grid-template-columns: 1fr 1fr; }
  .f1-grid__slot.is-right { margin-top: 0; }
}

.driver-card {
  flex:1; display:flex; align-items:center; gap:10px; padding:10px 12px; cursor:grab; user-select:none;
}
.driver-card.is-selected { background: var(--red-tint); outline:2px solid var(--red); outline-offset:-2px; }
.driver-card.is-dragging { opacity:.85; cursor:grabbing; }
.driver-card.is-empty { justify-content:center; color: var(--muted); }
.driver-card__pos {
  font-family: 'IBM Plex Mono', monospace; font-weight:900; font-size:11px; color: var(--muted);
  background: var(--surface-alt); border:1px solid var(--border); border-radius:6px; padding:4px 6px; min-width:36px; text-align:center;
}
.driver-card__num {
  width:28px; height:28px; border-radius:50%; color:#fff; display:grid; place-items:center;
  font-size:11px; font-weight:900; flex-shrink:0;
}
.driver-card__main { flex:1; min-width:0; }
.driver-card__code { font-weight:900; font-size:13px; letter-spacing:.04em; }
.driver-card__name { font-size:11px; color: var(--sub); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.driver-card__team { font-size:10px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; }
.driver-card__meta { display:flex; flex-direction:column; align-items:flex-end; gap:6px; }
.driver-card__win {
  font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:800;
  background: var(--amber); color:#fff; border-radius:999px; padding:3px 7px;
}
.driver-card__ot { width:10px; height:10px; border-radius:50%; display:inline-block; border:1px solid rgba(255,255,255,.6); }

/* Delta gauge */
.f1-grid__delta {
  display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:10px;
  background: var(--surface-alt); border:1px solid var(--border); font-size:12px; font-weight:700;
}
.f1-grid__delta.is-positive { background: rgba(29,163,107,.12); border-color: rgba(29,163,107,.3); color:#1DA36B; }
.f1-grid__delta.is-negative { background: rgba(225,6,0,.08); border-color: rgba(225,6,0,.25); color:var(--red); }
.f1-grid__delta-label { color:var(--sub); font-weight:600; }
.f1-grid__delta-val { font-family:'IBM Plex Mono', monospace; font-size:13px; }
.f1-grid__delta-hint { margin-left:auto; }

/* Penalties & presets */
.f1-grid__penalties, .f1-grid__presets { display:flex; flex-wrap:wrap; gap:6px; margin-top:10px; }
.penalty-btn, .preset-btn {
  border-radius:999px; padding:6px 10px; font-size:11px; font-weight:700; letter-spacing:.02em;
  background: var(--surface); border:1px solid var(--border); cursor:pointer; transition: all .15s ease;
}
.penalty-btn:hover, .preset-btn:hover { border-color: var(--red); background: var(--red-tint); }
.penalty-btn.is-warn { background: var(--red); color:#fff; border-color: var(--red); }
.preset-btn { background: var(--navy); color:#fff; border-color: var(--navy); }
.preset-btn:hover { background: #1e344d; }

/* Manual Grid Editor Styles */
.manual-grid-container {
    margin: 24px 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.manual-grid-instructions {
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.manual-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.manual-grid-slot {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.position-label {
    font-weight: bold;
    text-align: center;
    color: var(--text);
}

.driver-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    /* FIX: Changed from 'background' to 'background-color' */
    background-color: var(--surface);
    color: var(--text);
    font-size: 1rem;
    appearance: none;
    -webkit-appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23666" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
}

.driver-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.manual-grid-controls {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 16px;
}

.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

#run-btn { background: var(--green) !important; color:#fff; border:none; }
#run-btn:hover:not(:disabled) { background: #158a57 !important; transform: translateY(-1px); }
#run-btn:disabled { opacity:.45; cursor:not-allowed; transform:none; }
#run-btn:active:not(:disabled) { transform: scale(.98); }
#manual-grid-dropdowns select.is-duplicate { border-color: var(--amber); background: #fff7ed; }

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--hover);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: var(--hover);
}