/* ═══════════════════════════════════════════════════════════════
   PITVISION AI — F1 Premium Design System
   Formula 1 Pit Stop Strategy Predictor
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Custom Properties ────────────────────────────────────── */
:root {
  /* Primary */
  --f1-red: #E10600;
  --f1-red-glow: rgba(225, 6, 0, 0.4);
  --carbon-black: #0A0A0A;
  --dark-gray: #161616;
  --dark-gray-2: #1E1E1E;
  --dark-gray-3: #2A2A2A;
  --white: #FFFFFF;

  /* Accent */
  --racing-silver: #C0C0C0;
  --neon-cyan: #00F0FF;
  --neon-cyan-glow: rgba(0, 240, 255, 0.3);
  --electric-blue: #0066FF;
  --electric-blue-glow: rgba(0, 102, 255, 0.3);

  /* Tire Colors */
  --tire-soft: #FF3333;
  --tire-medium: #FFC300;
  --tire-hard: #FFFFFF;
  --tire-inter: #43B02A;
  --tire-wet: #0072CE;

  /* Risk */
  --risk-low: #00E676;
  --risk-medium: #FFD600;
  --risk-high: #FF3D00;

  /* Gradients */
  --gradient-f1: linear-gradient(135deg, #E10600 0%, #8B0000 100%);
  --gradient-dark: linear-gradient(180deg, #0A0A0A 0%, #161616 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 30, 30, 0.9) 0%, rgba(20, 20, 20, 0.95) 100%);
  --gradient-cyan: linear-gradient(135deg, #00F0FF 0%, #0066FF 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);

  /* Typography */
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1200px;

  /* Borders */
  --border-subtle: 1px solid rgba(255, 255, 255, 0.06);
  --border-glow: 1px solid rgba(0, 240, 255, 0.2);
  --border-red: 1px solid rgba(225, 6, 0, 0.3);

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow-cyan: 0 0 30px rgba(0, 240, 255, 0.15);
  --shadow-glow-red: 0 0 30px rgba(225, 6, 0, 0.2);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--carbon-black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--carbon-black);
}
::-webkit-scrollbar-thumb {
  background: var(--f1-red);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #ff2020;
}

::selection {
  background: var(--f1-red);
  color: var(--white);
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: var(--white);
  text-shadow: 0 0 10px var(--neon-cyan-glow);
}

/* ── Carbon Fiber Background Pattern ─────────────────────────── */
.bg-carbon {
  background-color: var(--carbon-black);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 0);
  background-size: 20px 20px;
}

.bg-carbon-dark {
  background-color: var(--dark-gray);
  background-image:
    linear-gradient(45deg, rgba(255,255,255,0.02) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.02) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.02) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.02) 75%);
  background-size: 4px 4px;
}

/* Grid overlay */
.grid-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(0,240,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── Container ────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ── Section Base ─────────────────────────────────────────────── */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--white) 0%, var(--racing-silver) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
  margin-bottom: 50px;
  text-transform: uppercase;
}

.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-f1);
  margin-bottom: 40px;
  border-radius: 2px;
}

/* ── Loading Screen ───────────────────────────────────────────── */
#loading-screen {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--carbon-black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loading-logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 4px;
  margin-bottom: 40px;
  animation: logoGlow 2s ease-in-out infinite;
}

.loading-logo span.red { color: var(--f1-red); }
.loading-logo span.white { color: var(--white); }

/* Loading Car Animation */
/* Transition / Loading Screen Car Lane */
.loading-car-lane {
  position: relative;
  width: 100vw;
  max-width: 800px;
  height: 100px;
  overflow: hidden;
  margin-bottom: 40px;
  pointer-events: none;
}

.loading-car-new {
  position: absolute;
  width: 250px;
  height: auto;
  top: 50%;
  transform: translateY(-50%);
  filter: drop-shadow(0 0 20px rgba(225, 6, 0, 0.45));
  animation: loadingCarDriveLeft 2.6s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

/* Speed lines during page transition */
.speed-lines-full {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.speed-line-transition {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  animation: speedLineRight 1.5s linear infinite;
  opacity: 0.4;
}

.speed-line-transition:nth-child(1) { top: 15%; width: 120px; animation-duration: 1.2s; animation-delay: 0s; }
.speed-line-transition:nth-child(2) { top: 35%; width: 180px; animation-duration: 0.9s; animation-delay: 0.3s; }
.speed-line-transition:nth-child(3) { top: 65%; width: 150px; animation-duration: 1.5s; animation-delay: 0.1s; }
.speed-line-transition:nth-child(4) { top: 85%; width: 200px; animation-duration: 1.0s; animation-delay: 0.5s; }

@keyframes loadingCarDriveLeft {
  0% {
    left: 105%;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    left: -320px;
    opacity: 0;
  }
}

@keyframes speedLineRight {
  0% {
    left: -200px;
  }
  100% {
    left: 105%;
  }
}

/* Progress bar */
.loading-progress-container {
  width: 300px;
  height: 4px;
  background: var(--dark-gray-3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 24px;
  position: relative;
}

.loading-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-f1);
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 10px var(--f1-red-glow);
}

.loading-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 2px;
  text-transform: uppercase;
  min-height: 20px;
}

/* ── Navigation ───────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--white);
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--white);
  text-shadow: none;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
}

.nav-logo .pit { color: var(--f1-red); }
.nav-logo .vision { color: var(--white); }
.nav-logo .ai { color: var(--neon-cyan); font-size: 0.7rem; opacity: 0.7; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--f1-red);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--white);
  text-shadow: none;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--white);
}

.sound-toggle {
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.5);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition-fast);
}

.sound-toggle:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

/* Mobile Menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(30px);
    padding: 80px 40px;
    gap: 24px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1rem; }
}

/* ── Hero Section ─────────────────────────────────────────────── */
.hero {
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Pit lane tunnel gradient */
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(225, 6, 0, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(0, 240, 255, 0.04) 0%, transparent 60%),
    linear-gradient(180deg, var(--carbon-black) 0%, var(--dark-gray) 50%, var(--carbon-black) 100%);
}

/* Animated horizontal telemetry lines */
.hero-lines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  opacity: 0.3;
}

.h-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--neon-cyan) 50%, transparent 100%);
  animation: hLine 4s linear infinite;
}
.h-line:nth-child(1) { top: 20%; animation-duration: 3s; }
.h-line:nth-child(2) { top: 40%; animation-duration: 5s; animation-delay: 1s; }
.h-line:nth-child(3) { top: 60%; animation-duration: 4s; animation-delay: 2s; }
.h-line:nth-child(4) { top: 80%; animation-duration: 3.5s; animation-delay: 0.5s; }

/* Canvas for particles */
#hero-particles {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 6px 18px;
  margin-bottom: 28px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease forwards 0.3s;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards 0.5s;
}

.hero-title .highlight {
  background: var(--gradient-f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.5);
  max-width: 600px;
  margin: 0 auto 40px;
  letter-spacing: 1px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease forwards 0.7s;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease forwards 0.9s;
}

/* F1 Car in hero */
.hero-car {
  position: absolute;
  bottom: 12%;
  left: -200px;
  width: 400px;
  height: 100px;
  z-index: 2;
  animation: carDrive 3s cubic-bezier(0.16, 1, 0.3, 1) forwards 1.2s;
  opacity: 0;
  pointer-events: none;
}

.hero-car svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 20px rgba(225, 6, 0, 0.3));
}

.hero-car .wheel {
  animation: wheelSpin 0.4s linear infinite;
  transform-origin: center;
}

/* Car exhaust glow */
.hero-car::after {
  content: '';
  position: absolute;
  right: -30px;
  top: 30%;
  width: 60px;
  height: 40%;
  background: radial-gradient(ellipse at left, rgba(225, 6, 0, 0.4), transparent);
  filter: blur(8px);
  animation: exhaustGlow 0.3s ease-in-out infinite alternate;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-f1);
  color: var(--white);
  box-shadow: 0 4px 20px var(--f1-red-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px var(--f1-red-glow);
  color: var(--white);
  text-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 4px 20px var(--neon-cyan-glow);
  transform: translateY(-2px);
  text-shadow: none;
}

/* ── Cards ────────────────────────────────────────────────────── */
.card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-f1);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.1);
  box-shadow: var(--shadow-card);
}

.card:hover::before {
  opacity: 1;
}

.card-glass {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 32px;
}

/* ── Metric Cards ─────────────────────────────────────────────── */
.metric-card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.2);
  box-shadow: var(--shadow-glow-cyan);
}

.metric-card:hover::before {
  opacity: 1;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.4);
  margin-bottom: 10px;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--neon-cyan);
  margin-bottom: 4px;
}

.metric-unit {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

/* ── Predictor Form ───────────────────────────────────────────── */
.predictor-section {
  padding: 80px 0 120px;
  position: relative;
}

.predictor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 900px) {
  .predictor-grid { grid-template-columns: 1fr; }
}

.form-panel {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 16px;
  padding: 40px;
  position: relative;
}

.form-panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.form-panel-header .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--risk-low);
  animation: pulse 2s ease-in-out infinite;
}

.form-panel-header h3 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.7);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.4);
  margin-bottom: 8px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--white);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  outline: none;
  transition: var(--transition-fast);
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
  background: rgba(0, 240, 255, 0.03);
}

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff50' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-select option {
  background: var(--dark-gray);
  color: var(--white);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Tire Compound Visual Selector */
.tire-selector {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tire-option {
  flex: 1;
  min-width: 60px;
  padding: 10px 8px;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  background: rgba(255,255,255,0.03);
  color: rgba(255,255,255,0.5);
}

.tire-option:hover {
  border-color: rgba(255,255,255,0.3);
  transform: translateY(-2px);
}

.tire-option.active {
  transform: translateY(-2px);
}

.tire-option[data-compound="SOFT"].active {
  border-color: var(--tire-soft);
  color: var(--tire-soft);
  box-shadow: 0 0 15px rgba(255, 51, 51, 0.2);
  background: rgba(255, 51, 51, 0.08);
}
.tire-option[data-compound="MEDIUM"].active {
  border-color: var(--tire-medium);
  color: var(--tire-medium);
  box-shadow: 0 0 15px rgba(255, 195, 0, 0.2);
  background: rgba(255, 195, 0, 0.08);
}
.tire-option[data-compound="HARD"].active {
  border-color: var(--tire-hard);
  color: var(--tire-hard);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}
.tire-option[data-compound="INTER"].active {
  border-color: var(--tire-inter);
  color: var(--tire-inter);
  box-shadow: 0 0 15px rgba(67, 176, 42, 0.2);
  background: rgba(67, 176, 42, 0.08);
}
.tire-option[data-compound="WET"].active {
  border-color: var(--tire-wet);
  color: var(--tire-wet);
  box-shadow: 0 0 15px rgba(0, 114, 206, 0.2);
  background: rgba(0, 114, 206, 0.08);
}

/* Slider */
.form-slider-container {
  position: relative;
}

.form-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.form-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--neon-cyan);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px var(--neon-cyan-glow);
  transition: var(--transition-fast);
}

.form-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 20px var(--neon-cyan-glow);
}

.slider-value {
  position: absolute;
  right: 0;
  top: -24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--neon-cyan);
}

.btn-predict {
  width: 100%;
  padding: 16px;
  margin-top: 12px;
  font-size: 0.85rem;
  letter-spacing: 3px;
}

/* ── Prediction Result Panel ──────────────────────────────────── */
.result-panel {
  position: relative;
}

.result-waiting {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  text-align: center;
}

.result-waiting-icon {
  width: 120px;
  height: 120px;
  border: 2px solid rgba(255,255,255,0.06);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
}

.result-waiting-icon::before {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  border: 2px solid transparent;
  border-top-color: var(--f1-red);
  border-radius: 50%;
  animation: radarSpin 2s linear infinite;
  opacity: 0.5;
}

.result-waiting h3 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 8px;
}

.result-waiting p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.2);
}

/* Prediction Loading Animation */
.prediction-loading {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
}

.prediction-loading.active {
  display: flex;
}

.scanning-ring {
  width: 150px;
  height: 150px;
  border: 2px solid rgba(0, 240, 255, 0.1);
  border-radius: 50%;
  position: relative;
  margin-bottom: 30px;
}

.scanning-ring::before,
.scanning-ring::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}

.scanning-ring::before {
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border: 2px solid transparent;
  border-top-color: var(--neon-cyan);
  animation: radarSpin 1s linear infinite;
}

.scanning-ring::after {
  top: 15px; left: 15px; right: 15px; bottom: 15px;
  border: 1px solid transparent;
  border-bottom-color: var(--f1-red);
  animation: radarSpin 1.5s linear infinite reverse;
}

.scanning-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: textBlink 1.5s step-end infinite;
}

/* Result Display */
.result-display {
  display: none;
}

.result-display.active {
  display: block;
  animation: fadeUp 0.6s ease forwards;
}

.result-header {
  text-align: center;
  padding: 32px;
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 16px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.result-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-f1);
}

.result-verdict {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 10px;
}

.result-action {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.result-action.pit { color: var(--f1-red); }
.result-action.stay { color: var(--risk-low); }

.result-lap {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* Confidence Circle */
.confidence-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.confidence-ring {
  position: relative;
  width: 140px;
  height: 140px;
}

.confidence-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.confidence-ring .bg-ring {
  fill: none;
  stroke: rgba(255,255,255,0.06);
  stroke-width: 6;
}

.confidence-ring .fg-ring {
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.confidence-value {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.confidence-value .number {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
}

.confidence-value .label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Result Info Cards */
.result-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-info-card {
  background: rgba(255,255,255,0.03);
  border: var(--border-subtle);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

.result-info-card .info-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.result-info-card .info-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.risk-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.risk-badge.low { background: rgba(0, 230, 118, 0.15); color: var(--risk-low); border: 1px solid rgba(0, 230, 118, 0.3); }
.risk-badge.medium { background: rgba(255, 214, 0, 0.15); color: var(--risk-medium); border: 1px solid rgba(255, 214, 0, 0.3); }
.risk-badge.high { background: rgba(255, 61, 0, 0.15); color: var(--risk-high); border: 1px solid rgba(255, 61, 0, 0.3); }

/* ── Telemetry Dashboard ──────────────────────────────────────── */
.telemetry-section {
  padding: 80px 0;
  position: relative;
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.telemetry-card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.telemetry-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.telemetry-card-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.4);
}

.telemetry-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--risk-low);
  animation: pulse 2s ease-in-out infinite;
}

/* Tire Temperature Visualization */
.tire-temp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.tire-temp {
  text-align: center;
  padding: 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.04);
}

.tire-temp-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.tire-temp-value {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
}

.temp-optimal { color: var(--risk-low); }
.temp-hot { color: var(--risk-medium); }
.temp-critical { color: var(--risk-high); }

/* Sector Timing */
.sector-times {
  display: flex;
  gap: 8px;
}

.sector {
  flex: 1;
  text-align: center;
  padding: 10px 8px;
  background: rgba(255,255,255,0.03);
  border-radius: 6px;
}

.sector-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.3);
  margin-bottom: 4px;
}

.sector-value {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
}

.sector-purple { color: #A855F7; }
.sector-green { color: var(--risk-low); }
.sector-yellow { color: var(--risk-medium); }

/* Gauge */
.gauge-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gauge-svg {
  width: 160px;
  height: 100px;
}

.gauge-bg {
  fill: none;
  stroke: rgba(255,255,255,0.08);
  stroke-width: 8;
  stroke-linecap: round;
}

.gauge-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s ease;
}

.gauge-value-text {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  fill: var(--white);
  text-anchor: middle;
}

.gauge-label-text {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  fill: rgba(255,255,255,0.4);
  text-anchor: middle;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Mini Track Map */
.track-map-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.track-map-svg {
  width: 100%;
  max-width: 200px;
  height: auto;
}

.track-map-path {
  fill: none;
  stroke: rgba(255,255,255,0.1);
  stroke-width: 3;
  stroke-linecap: round;
}

.track-map-position {
  fill: var(--f1-red);
  filter: drop-shadow(0 0 6px var(--f1-red-glow));
}

/* ── Model Insights ───────────────────────────────────────────── */
.insights-section {
  padding: 80px 0 120px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.feature-chart-container {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 60px;
}

.feature-bar-container {
  margin-bottom: 12px;
}

.feature-bar-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.feature-bar-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
}

.feature-bar-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
}

.feature-bar-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.feature-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-cyan);
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

/* Architecture Diagram */
.architecture-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  padding: 40px 20px;
}

.arch-node {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 10px;
  padding: 18px 24px;
  text-align: center;
  min-width: 120px;
  transition: var(--transition-smooth);
}

.arch-node:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-3px);
}

.arch-node-icon {
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.arch-node-label {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}

.arch-arrow {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: rgba(255,255,255,0.2);
  padding: 0 12px;
}

/* Tech Stack Badges */
.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.05);
}

/* ── About Section ────────────────────────────────────────────── */
.about-section {
  padding: 80px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}

.about-text h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.about-text p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* ── Red Bull Racing Logo ─────────────────────────────────────── */
.rb-logo-section {
  padding: 40px 0;
  text-align: center;
}

.rb-logo-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 32px 48px;
  transition: var(--transition-smooth);
}

.rb-logo-container:hover {
  border-color: rgba(30, 65, 255, 0.3);
  box-shadow: 0 0 40px rgba(30, 65, 255, 0.1);
  transform: translateY(-2px);
}

.rb-logo-container svg {
  width: 200px;
  height: auto;
}

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255,255,255,0.06);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.footer-brand .footer-logo .pit { color: var(--f1-red); }
.footer-brand .footer-logo .vision { color: var(--white); }

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.6;
  max-width: 300px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.2);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.3);
  font-size: 0.75rem;
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes logoGlow {
  0%, 100% { text-shadow: 0 0 10px rgba(225, 6, 0, 0.3); }
  50% { text-shadow: 0 0 25px rgba(225, 6, 0, 0.6), 0 0 50px rgba(225, 6, 0, 0.2); }
}

@keyframes speedLine {
  0% { transform: translateX(0); opacity: 0.6; }
  50% { opacity: 1; }
  100% { transform: translateX(-40px); opacity: 0; }
}

@keyframes hLine {
  0% { width: 0; left: -10%; }
  50% { width: 30%; }
  100% { width: 0; left: 110%; }
}

@keyframes carDrive {
  0% { left: -200px; opacity: 0; }
  20% { opacity: 1; }
  100% { left: calc(50% - 200px); opacity: 1; }
}

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

@keyframes exhaustGlow {
  from { opacity: 0.3; transform: scaleX(0.8); }
  to { opacity: 0.7; transform: scaleX(1.2); }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes textBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Track position animation */
@keyframes trackPosition {
  0% { offset-distance: 0%; }
  100% { offset-distance: 100%; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Charts Container ─────────────────────────────────────────── */
.chart-card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
}

.chart-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-title::before {
  content: '';
  width: 3px;
  height: 16px;
  background: var(--f1-red);
  border-radius: 2px;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 480px) {
  .hero-title { letter-spacing: 2px; }
  .hero-car { width: 280px; }
  .form-row { grid-template-columns: 1fr; }
  .result-info-grid { grid-template-columns: 1fr; }
  .architecture-flow { flex-direction: column; }
  .arch-arrow { transform: rotate(90deg); }
  .footer-grid { grid-template-columns: 1fr; }
  .confidence-container { flex-direction: column; }
}

/* ── Model Overview Responsive Grid ───────────────────────────── */
.model-overview-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: center;
}

.model-overview-visual {
  text-align: center;
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  padding-left: 30px;
}

.model-overview-visual img {
  width: 100%;
  max-width: 340px;
  height: auto;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.model-overview-visual img:hover {
  transform: scale(1.08) rotate(-1deg);
}

@media (max-width: 768px) {
  .model-overview-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .model-overview-visual {
    border-left: none;
    padding-left: 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
}

/* ── Predictor Dashboard 3-Column Info Cards ── */
.result-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 12px;
}

@media (max-width: 580px) {
  .result-info-grid {
    grid-template-columns: 1fr !important;
  }
}

/* ── Race Uncertainty Card Styling ── */
#uncertainty-card-container {
  cursor: help;
  position: relative;
  transition: var(--transition-smooth);
}

#uncertainty-card-container:hover {
  background: rgba(255, 255, 255, 0.05);
}

.uncertainty-value {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.uncertainty-value.low {
  color: var(--risk-low);
  text-shadow: 0 0 10px rgba(0, 230, 118, 0.3);
}

.uncertainty-value.medium {
  color: var(--risk-medium);
  text-shadow: 0 0 10px rgba(255, 214, 0, 0.3);
}

.uncertainty-value.high {
  color: var(--risk-high);
  text-shadow: 0 0 10px rgba(255, 61, 0, 0.3);
}

/* ── Why This Prediction Collapsible Panel ── */
.why-prediction-panel {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: 12px;
  margin-top: 20px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.why-prediction-toggle {
  width: 100%;
  padding: 18px 24px;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  outline: none;
  transition: var(--transition-fast);
}

.why-prediction-toggle:hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--neon-cyan);
}

.why-prediction-toggle .toggle-icon {
  font-size: 0.7rem;
  transition: transform 0.3s ease;
  color: rgba(255, 255, 255, 0.3);
}

.why-prediction-toggle.active .toggle-icon {
  transform: rotate(180deg);
  color: var(--neon-cyan);
}

.why-prediction-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 24px;
}

.why-prediction-content.open {
  max-height: 500px; /* high enough threshold */
  padding-bottom: 24px;
}

.why-prediction-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 8px;
}

/* Factor Contribution Bars */
.factor-row {
  margin-bottom: 14px;
}

.factor-row:last-child {
  margin-bottom: 0;
}

.factor-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  margin-bottom: 6px;
}

.factor-name {
  font-family: var(--font-body);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
}

.factor-percentage {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--neon-cyan);
}

.factor-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 3px;
  overflow: hidden;
}

.factor-bar-fill {
  height: 100%;
  width: 0%; /* Animates via JS */
  background: linear-gradient(90deg, var(--neon-cyan), var(--electric-blue));
  border-radius: 3px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Premium F1 Strategy Caution Panel ── */
.strategy-caution-panel {
  background: linear-gradient(145deg, rgba(20, 20, 20, 0.95) 0%, rgba(10, 10, 10, 0.98) 100%);
  border: var(--border-subtle);
  border-left: 3px solid var(--f1-red) !important;
  border-radius: 8px;
  padding: 24px;
  margin-top: 24px;
  position: relative;
  overflow: hidden;
}

.strategy-caution-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.005) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.005) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}

.caution-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.caution-icon {
  font-size: 1.1rem;
}

.caution-header h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--f1-red);
}

.caution-text {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* Caution Tags */
.caution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.caution-tag {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  cursor: default;
  transition: var(--transition-fast);
}

.caution-tag:hover {
  background: rgba(225, 6, 0, 0.08);
  border-color: rgba(225, 6, 0, 0.3);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(225, 6, 0, 0.15);
}

/* ── Professional Muted Disclaimer ── */
.professional-disclaimer-muted {
  max-width: var(--container-max);
  margin: 40px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.25);
  line-height: 1.5;
  text-align: center;
}