/* =============================================
   TRANSFORMER F1 :: Design System Stylesheet
   Dark theme, premium motorsport aesthetic
   ============================================= */

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

:root {
  /* Primitive tokens */
  --color-black:        #000000;
  --color-near-black:   #0A0A0A;
  --color-dark-1:       #111114;
  --color-dark-2:       #16161A;
  --color-dark-3:       #1C1C22;
  --color-dark-4:       #242430;
  --color-mid:          #2E2E3A;
  --color-border:       rgba(255,255,255,0.08);
  --color-border-bright:rgba(255,255,255,0.16);
  --color-text-primary: #F0F0F5;
  --color-text-secondary:#A0A0B0;
  --color-text-muted:   #606070;
  --color-white:        #FFFFFF;

  /* Semantic tokens */
  --bg-page:            var(--color-near-black);
  --bg-card:            var(--color-dark-2);
  --bg-card-hover:      var(--color-dark-3);
  --bg-stats:           var(--color-dark-4);
  --text-heading:       var(--color-text-primary);
  --text-body:          var(--color-text-secondary);
  --text-muted:         var(--color-text-muted);
  --border-subtle:      var(--color-border);
  --border-visible:     var(--color-border-bright);

  /* Typography */
  --font-display:       'Orbitron', 'Arial Black', sans-serif;
  --font-body:          'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --space-1:   4px;
  --space-2:   8px;
  --space-3:   12px;
  --space-4:   16px;
  --space-5:   20px;
  --space-6:   24px;
  --space-8:   32px;
  --space-10:  40px;
  --space-12:  48px;
  --space-16:  64px;
  --space-20:  80px;
  --space-24:  96px;

  /* Radii */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  /* Shadows */
  --shadow-card: 0 4px 32px rgba(0,0,0,0.5), 0 1px 0 rgba(255,255,255,0.04) inset;
  --shadow-glow: 0 0 40px rgba(var(--team-color-rgb, 255,255,255), 0.12);

  /* Transitions */
  --transition-fast:  0.15s ease;
  --transition-mid:   0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-slow:  0.6s cubic-bezier(0.4,0,0.2,1);

  /* Layout */
  --container-max:  1280px;
  --container-pad:  clamp(16px, 5vw, 48px);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-page);
  color: var(--text-body);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* =============================================
   UTILITY
   ============================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(220, 50, 0, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 70%, rgba(54, 113, 198, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 20% 60%, rgba(0, 210, 190, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #060608 0%, #0D0D12 40%, #0A0A0F 100%);
  z-index: -2;
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: -1;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 50%, black 20%, transparent 80%);
}

.hero__content {
  text-align: center;
  padding: var(--space-16) var(--container-pad);
  max-width: 900px;
  z-index: 1;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: clamp(0.55rem, 1.2vw, 0.7rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s ease both;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 7.5rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 0.9;
  color: var(--color-white);
  text-transform: uppercase;
  background: linear-gradient(135deg, #ffffff 0%, #c0c0cc 40%, #808090 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-3);
  animation: fadeInUp 0.8s 0.1s ease both;
}

.hero__subtitle {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 2.5vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.8s 0.2s ease both;
}

.hero__desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-12);
  animation: fadeInUp 0.8s 0.3s ease both;
}

.hero__scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: fadeInUp 0.8s 0.5s ease both;
}

.hero__arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
  animation: arrowPulse 2s ease-in-out infinite;
}

/* Spark particles */
.hero__sparks {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero__sparks span {
  position: absolute;
  width: 2px;
  background: linear-gradient(to bottom, rgba(255, 200, 100, 0.8), transparent);
  animation: sparkFall linear infinite;
  border-radius: 1px;
}

.hero__sparks span:nth-child(1)  { left: 10%; top: -20px; height: 80px;  animation-duration: 4s;  animation-delay: 0s;   }
.hero__sparks span:nth-child(2)  { left: 25%; top: -20px; height: 120px; animation-duration: 6s;  animation-delay: 1s;   }
.hero__sparks span:nth-child(3)  { left: 40%; top: -20px; height: 60px;  animation-duration: 3.5s;animation-delay: 2s;   }
.hero__sparks span:nth-child(4)  { left: 55%; top: -20px; height: 100px; animation-duration: 5s;  animation-delay: 0.5s; }
.hero__sparks span:nth-child(5)  { left: 70%; top: -20px; height: 70px;  animation-duration: 4.5s;animation-delay: 1.5s; }
.hero__sparks span:nth-child(6)  { left: 82%; top: -20px; height: 90px;  animation-duration: 5.5s;animation-delay: 3s;   }
.hero__sparks span:nth-child(7)  { left: 15%; top: -20px; height: 50px;  animation-duration: 3s;  animation-delay: 2.5s; }
.hero__sparks span:nth-child(8)  { left: 92%; top: -20px; height: 110px; animation-duration: 7s;  animation-delay: 0.8s; }
.hero__sparks span:nth-child(9)  { left: 6%;  top: -20px; height: 85px;  animation-duration: 4.8s;animation-delay: 3.5s; }
.hero__sparks span:nth-child(10) { left: 62%; top: -20px; height: 65px;  animation-duration: 3.8s;animation-delay: 1.2s; }

/* =============================================
   GRID NAV
   ============================================= */
.grid-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-3) 0;
}

.grid-nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: none;
  padding: var(--space-1) 0;
}

.grid-nav__list::-webkit-scrollbar { display: none; }

.grid-nav__item {
  display: block;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  position: relative;
}

.grid-nav__item::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--accent, #fff);
  border-radius: 1px;
  transition: transform var(--transition-fast);
}

.grid-nav__item:hover {
  color: var(--color-white);
  border-color: var(--accent, rgba(255,255,255,0.2));
  background: rgba(255,255,255,0.04);
}

.grid-nav__item:hover::after {
  transform: translateX(-50%) scaleX(1);
}

/* =============================================
   MAIN CONTENT
   ============================================= */
.main {
  padding: var(--space-16) 0 var(--space-24);
}

/* =============================================
   CAR CARD
   ============================================= */
.car-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-16);
  transition: transform var(--transition-mid), border-color var(--transition-mid);
  box-shadow: var(--shadow-card);
}

.car-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--team-color-dim, rgba(255,255,255,0.03)) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.car-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--team-color, 255,255,255), 0.2);
  border-color: color-mix(in srgb, var(--team-color, #fff) 30%, transparent);
}

/* Image section */
.car-card__image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  background: #0D0D0F;
}

.car-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform var(--transition-slow);
}

.car-card:hover .car-card__image {
  transform: scale(1.03);
}

.car-card__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(10, 10, 10, 0.4) 70%,
    rgba(10, 10, 10, 0.85) 100%
  );
}

.car-card__number {
  position: absolute;
  top: var(--space-5);
  left: var(--space-6);
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(255,255,255,0.06);
  letter-spacing: -0.02em;
  pointer-events: none;
  user-select: none;
}

/* Card body */
.car-card__body {
  position: relative;
  padding: var(--space-8) var(--space-8) var(--space-10);
  z-index: 1;
}

@media (max-width: 600px) {
  .car-card__body {
    padding: var(--space-6) var(--space-5) var(--space-8);
  }
}

.car-card__team-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--team-color, #888);
  background: var(--team-color-dim, rgba(255,255,255,0.06));
  border: 1px solid color-mix(in srgb, var(--team-color, #888) 35%, transparent);
  padding: var(--space-1) var(--space-3);
  border-radius: 100px;
  margin-bottom: var(--space-4);
}

.car-card__name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.05;
  color: var(--text-heading);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.car-card__tagline {
  font-family: var(--font-display);
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--team-color, var(--text-muted));
  margin-bottom: var(--space-8);
  opacity: 0.85;
}

/* Copy + stats layout */
.car-card__layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 900px) {
  .car-card__layout {
    grid-template-columns: 1fr;
  }
  .car-card__stats {
    order: -1;
  }
}

.car-card__copy p {
  font-size: clamp(0.9rem, 1.5vw, 1.02rem);
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: var(--space-5);
}

.car-card__copy p:last-child {
  margin-bottom: 0;
}

/* Stats card */
.stats-card {
  background: var(--bg-stats);
  border: 1px solid var(--border-visible);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.stats-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--team-color, rgba(255,255,255,0.3)), transparent);
}

.stats-card__title {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--team-color, var(--text-muted));
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.stat-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.stat-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.stat-label {
  font-family: var(--font-display);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.3;
}

.stat-row--special .stat-value {
  color: var(--team-color, var(--text-heading));
  font-size: 0.78rem;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) 0;
  background: var(--color-dark-1);
}

.footer__inner {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.footer__tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.footer__legal {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  opacity: 0.6;
  line-height: 1.6;
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes arrowPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.2); }
}

@keyframes sparkFall {
  0%   { transform: translateY(0) translateX(0);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(110vh) translateX(20px); opacity: 0; }
}

/* =============================================
   SCROLL REVEAL
   ============================================= */
.car-card {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.7s ease,
    transform 0.7s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow var(--transition-mid),
    border-color var(--transition-mid);
}

.car-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Override the hover transform when visible */
.car-card.is-visible:hover {
  transform: translateY(-4px);
}

/* =============================================
   RESPONSIVE TWEAKS
   ============================================= */
@media (max-width: 480px) {
  .car-card__image-wrap {
    aspect-ratio: 4 / 3;
  }

  .car-card__number {
    font-size: 2.5rem;
  }
}

/* =============================================
   SCROLLBAR STYLING
   ============================================= */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-dark-1);
}

::-webkit-scrollbar-thumb {
  background: var(--color-mid);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* =============================================
   IMAGE FALLBACK PLACEHOLDER
   ============================================= */
.car-card__image[src] {
  background: var(--color-dark-3);
}

/* Placeholder gradient when image not yet generated */
.car-card__image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--team-color-dim, rgba(255,255,255,0.03)) 0%,
    rgba(0,0,0,0) 60%
  );
  pointer-events: none;
}

/* =============================================
   SELECTION COLOR
   ============================================= */
::selection {
  background: rgba(220, 0, 0, 0.3);
  color: var(--color-white);
}