/* ============================================================
   VOLTRIDER — Design System Premium
   Nom de marque : VoltRider | voltride.fr
   Palette : noir profond + vert électrique + bleu électrique
   Psychologie : innovation, énergie, premium, confiance
   ============================================================ */

:root {
  /* Couleurs - psychologie d'achat optimisée */
  --bg:       #060611;   /* Noir profond → luxe, premium */
  --bg-2:     #09091f;   /* Légèrement plus clair */
  --card:     #0d0d2a;   /* Cards */
  --card-h:   #121240;   /* Cards hover */
  --green:    #a8ff00;   /* Vert électrique → énergie, "go", innovation */
  --green-d:  #7acc00;   /* Vert sombre */
  --blue:     #00d4ff;   /* Bleu électrique → technologie, confiance */
  --blue-d:   rgba(0,212,255,0.15);
  --green-d2: rgba(168,255,0,0.10);
  --green-b:  rgba(168,255,0,0.30);
  --text:     #eeeeff;
  --muted:    #6060a0;
  --border:   rgba(255,255,255,0.06);
  --radius:   14px;
  --radius-sm:8px;
  --radius-lg:22px;
  --font:     'Inter', -apple-system, sans-serif;
  --ease:     cubic-bezier(0.4,0,0.2,1);
  --t:        0.25s;
  --max-w:    1200px;
  --shadow:   0 32px 80px rgba(0,0,0,0.7);
}

/* ==================== RESET ==================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ==================== LOADER ==================== */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.5rem;
  transition: opacity 0.7s var(--ease), visibility 0.7s;
}
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

/* Rotation 360° Light Bee S sur elle-même */
.loader-bike-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.loader-bike-wrap::before {
  content: '';
  position: absolute;
  width: 320px; height: 120px;
  bottom: -10px;
  background: radial-gradient(ellipse, rgba(168,255,0,0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: shadowPulse 3s linear infinite;
}
@keyframes shadowPulse {
  0%,100% { transform: scaleX(1); opacity: 0.8; }
  50%      { transform: scaleX(0.3); opacity: 0.2; }
}
.loader-bike-img {
  width: min(520px, 88vw);
  height: auto;
  animation: bikeRotate360 2.8s linear infinite;
  filter: drop-shadow(0 8px 24px rgba(168,255,0,0.35));
  transform-origin: center center;
}
@keyframes bikeRotate360 {
  0%   { transform: perspective(1400px) rotateY(0deg);   }
  100% { transform: perspective(1400px) rotateY(360deg); }
}

.loader-brand {
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.loader-brand.show { opacity: 1; transform: none; }
.loader-brand span { color: var(--green); }

.loader-bar {
  width: min(220px, 60vw);
  height: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.loader-bar.show { opacity: 1; }
.loader-progress {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--green), var(--blue));
  border-radius: 2px;
  transition: width 2s var(--ease);
}
.loader-progress.go { width: 100%; }

/* ==================== 3D IMAGE RELIEF ==================== */
.img-3d {
  position: relative;
  overflow: visible;
  transform-style: preserve-3d;
}
.img-3d img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform 0.12s ease, filter 0.12s ease;
  transform: perspective(900px) rotateY(0deg) rotateX(0deg) scale(1);
  filter: drop-shadow(0 20px 50px rgba(0,0,0,0.7));
  will-change: transform, filter;
  cursor: grab;
}
/* Reflet électrique sous l'image */
.img-3d::after {
  content: '';
  position: absolute;
  bottom: -18px; left: 10%; right: 10%;
  height: 40px;
  background: radial-gradient(ellipse, rgba(168,255,0,0.12) 0%, transparent 70%);
  border-radius: 50%;
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

/* Rendu des images produit sur fond sombre */
.product-card-img img,
.product-img-large img {
  background: transparent;
}

/* ==================== TYPOGRAPHY ==================== */
h1 { font-size: clamp(2.4rem,6vw,5.2rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.8rem,4vw,3rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.025em; }
h3 { font-size: clamp(1.1rem,2vw,1.5rem); font-weight: 700; line-height: 1.25; }
p  { line-height: 1.7; }

.accent   { color: var(--green); }
.accent-b { color: var(--blue); }
.muted    { color: var(--muted); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--green);
  background: var(--green-d2);
  border: 1px solid var(--green-b);
  padding: 0.35em 0.9em;
  border-radius: 100px;
}

/* ==================== LAYOUT ==================== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 6rem 0; }
.section-sm { padding: 4rem 0; }

.section-header { text-align: center; margin-bottom: 4rem; }
.section-header .tag { margin-bottom: 1rem; }
.section-header p { color: var(--muted); font-size: 1.05rem; margin-top: 0.75rem; max-width: 520px; margin-inline: auto; }

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.78rem 1.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--t) var(--ease);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--t);
}
.btn:hover::after { opacity: 1; }
.btn-lg { padding: 1rem 2.2rem; font-size: 1rem; border-radius: var(--radius); }
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.82rem; }

.btn-green {
  background: var(--green);
  color: #04040f;
  font-weight: 700;
}
.btn-green:hover {
  background: #c0ff33;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(168,255,0,0.4);
}
.btn-blue {
  background: var(--blue);
  color: #04040f;
  font-weight: 700;
}
.btn-blue:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,212,255,0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.04);
  transform: translateY(-2px);
}
.btn-outline-green {
  background: transparent;
  color: var(--green);
  border: 1.5px solid var(--green-b);
}
.btn-outline-green:hover {
  background: var(--green-d2);
  border-color: var(--green);
  transform: translateY(-2px);
}

/* ==================== NAVIGATION ==================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 800;
  padding: 1.2rem 0;
  transition: all var(--t) var(--ease);
}
.nav.scrolled {
  background: rgba(6,6,17,0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 0;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 2px;
}
.logo-volt { color: var(--green); }
.logo-dot  { color: var(--blue); font-size: 1.8rem; line-height: 0.5; }

.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a:not(.btn) {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--t);
  position: relative;
}
.nav-links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: var(--green);
  transition: width var(--t) var(--ease);
}
.nav-links a:not(.btn):hover { color: var(--text); }
.nav-links a:not(.btn):hover::after { width: 100%; }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--t); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,6,17,0.97);
  backdrop-filter: blur(24px);
  z-index: 700;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.8rem; font-weight: 800; color: var(--muted); transition: color var(--t); }
.mobile-menu a:hover { color: var(--green); }

/* ==================== REVEAL ANIMATIONS ==================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* ==================== HERO HOMEPAGE ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 9rem 0 6rem;
  position: relative;
  overflow: hidden;
}
/* Lignes animées en arrière-plan */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168,255,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,255,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
  pointer-events: none;
  animation: gridShift 20s linear infinite;
}
@keyframes gridShift {
  from { transform: translateY(0); }
  to   { transform: translateY(60px); }
}
.hero-glow-1 {
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(168,255,0,0.09) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse 6s ease-in-out infinite;
}
.hero-glow-2 {
  position: absolute;
  bottom: -20%; left: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,212,255,0.07) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse 8s ease-in-out infinite reverse;
}
@keyframes pulse {
  0%,100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.15); opacity: 0.7; }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-tag { margin-bottom: 1.4rem; }
.hero h1 { margin-bottom: 1.2rem; }
.hero-sub { color: var(--muted); font-size: 1.1rem; max-width: 480px; margin-bottom: 2.4rem; line-height: 1.7; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-badges { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.hero-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%,100% { opacity: 1; } 50% { opacity: 0.3; }
}

/* Hero visual - moto flottante */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img-wrap {
  position: relative;
  width: 100%;
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-16px); }
}
.hero-img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--card) 0%, var(--card-h) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(168,255,0,0.04) 0%, rgba(0,212,255,0.04) 100%);
}
.hero-img-placeholder .ph-icon { font-size: 3.5rem; opacity: 0.15; }
.hero-img-placeholder .ph-text { font-size: 0.75rem; opacity: 0.5; }
.hero-img-placeholder img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-lg); }

/* Glow ring autour de la moto */
.hero-img-wrap::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse, rgba(168,255,0,0.08) 0%, transparent 65%);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

/* ==================== PRODUCT CARDS ==================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* Effet tilt 3D au hover */
.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: border-color var(--t), box-shadow var(--t), transform 0.1s;
  transform-style: preserve-3d;
  will-change: transform;
}
.product-card:hover {
  border-color: rgba(168,255,0,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(168,255,0,0.06);
}
.product-card-img {
  position: relative;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--card-h) 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-img .model-bg {
  font-size: 2.8rem;
  font-weight: 900;
  color: rgba(255,255,255,0.04);
  position: absolute;
  text-align: center;
  pointer-events: none;
  letter-spacing: -0.04em;
}
.product-card-img .no-img-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  padding: 1rem;
  z-index: 1;
}
.badge {
  position: absolute;
  top: 0.75rem; left: 0.75rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.3em 0.75em;
  border-radius: 100px;
}
.badge-new  { background: var(--green); color: #04040f; }
.badge-top  { background: #ff4060; color: #fff; }
.badge-hp   { background: var(--blue); color: #04040f; }

.product-card-body {
  padding: 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.product-card-title { font-size: 1.2rem; font-weight: 800; }
.product-card-sub   { font-size: 0.83rem; color: var(--muted); margin-top: -0.4rem; }

.specs-mini {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 0.4rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.5rem;
}
.spec-mini-item { text-align: center; }
.spec-mini-item .sv {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.spec-mini-item .sl {
  display: block;
  font-size: 0.63rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.product-card-footer { margin-top: auto; }

/* ==================== AVANTAGES ==================== */
.avantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
  gap: 1.25rem;
}
.avantage-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: all var(--t) var(--ease);
  position: relative;
  overflow: hidden;
}
.avantage-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.avantage-card:hover { border-color: rgba(168,255,0,0.15); background: var(--card-h); }
.avantage-card:hover::before { transform: scaleX(1); }
.avantage-icon { font-size: 2rem; margin-bottom: 1rem; }
.avantage-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.avantage-card p { font-size: 0.85rem; color: var(--muted); }

/* ==================== CTA SECTION ==================== */
.cta-section {
  background: linear-gradient(135deg, var(--card) 0%, var(--card-h) 100%);
  border: 1px solid rgba(168,255,0,0.1);
  border-radius: var(--radius-lg);
  padding: 5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -60%; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 500px;
  background: radial-gradient(ellipse, rgba(168,255,0,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 { margin-bottom: 1rem; }
.cta-section p  { color: var(--muted); font-size: 1.05rem; margin-bottom: 2.5rem; max-width: 480px; margin-inline: auto; }
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ==================== PAGE HEADER ==================== */
.page-header {
  padding: 9rem 0 4.5rem;
  text-align: center;
  position: relative;
}
.page-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px; height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  border-radius: 2px;
}
.page-header p { color: var(--muted); font-size: 1.05rem; max-width: 540px; margin: 0.75rem auto 0; }

/* ==================== PRODUCT DETAIL ==================== */
.product-hero {
  padding: 9rem 0 6rem;
  position: relative;
  overflow: hidden;
}
.product-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168,255,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,255,0,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.product-range-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.product-hero-grid h1 { margin-bottom: 0.6rem; }
.product-tagline { color: var(--muted); font-size: 1.1rem; margin-bottom: 2.2rem; }

.hero-stats { display: flex; gap: 2.5rem; margin-bottom: 2.5rem; flex-wrap: wrap; }
.hero-stat {}
.hs-val {
  display: block;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--green);
  line-height: 1;
  letter-spacing: -0.04em;
}
.hs-lbl {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.product-img-large {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--card) 0%, var(--card-h) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  animation: float 5s ease-in-out infinite;
}
.product-img-large::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(168,255,0,0.05) 0%, transparent 70%);
}
.product-img-large .bg-label {
  position: absolute;
  font-size: 5rem;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  letter-spacing: -0.05em;
  white-space: nowrap;
}
.product-img-large .img-ph {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.78rem;
  z-index: 1;
}
.product-img-large .img-ph .icon { font-size: 3rem; opacity: 0.12; }
.product-img-large img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* Specs Tabs */
.specs-section { background: var(--bg-2); padding: 5rem 0; }

.specs-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.spec-tab {
  padding: 0.75rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--t);
  margin-bottom: -1px;
}
.spec-tab:hover { color: var(--text); }
.spec-tab.active { color: var(--green); border-bottom-color: var(--green); }

.spec-panel { display: none; animation: fadeIn 0.3s ease; }
.spec-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.specs-table { width: 100%; border-collapse: collapse; }
.specs-table tr { border-bottom: 1px solid var(--border); transition: background var(--t); }
.specs-table tr:hover { background: rgba(255,255,255,0.02); }
.specs-table tr:last-child { border-bottom: none; }
.specs-table td { padding: 0.9rem 0.5rem; font-size: 0.9rem; }
.specs-table td:first-child { color: var(--muted); width: 48%; padding-left: 0; }
.specs-table td:last-child { font-weight: 600; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
  gap: 1.25rem;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--t);
}
.feature-card:hover {
  border-color: rgba(168,255,0,0.2);
  background: var(--card-h);
  transform: translateY(-3px);
}
.feature-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.feature-card h4 { margin-bottom: 0.3rem; font-size: 0.95rem; }
.feature-card p { font-size: 0.83rem; color: var(--muted); }

/* Colors */
.colors-list { display: flex; gap: 1.25rem; flex-wrap: wrap; margin-top: 1.5rem; }
.color-chip { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; cursor: pointer; }
.color-dot {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 3px solid var(--border);
  transition: all var(--t);
}
.color-dot:hover { border-color: var(--green); transform: scale(1.1); box-shadow: 0 0 16px rgba(168,255,0,0.3); }
.color-name { font-size: 0.72rem; color: var(--muted); text-align: center; }

/* ==================== CONTACT ==================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.contact-info h2 { margin-bottom: 1rem; }
.contact-info > p { color: var(--muted); margin-bottom: 2.5rem; font-size: 1rem; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  transition: all var(--t);
}
.contact-item:hover { border-color: var(--green-b); }
.contact-item-icon { font-size: 1.2rem; flex-shrink: 0; }
.contact-item h4 { font-size: 0.82rem; color: var(--muted); margin-bottom: 0.2rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.contact-item p { font-size: 0.9rem; font-weight: 500; margin: 0; }

.form-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.78rem 1rem;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text);
  transition: all var(--t);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green-b);
  box-shadow: 0 0 0 3px rgba(168,255,0,0.06);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236060a0' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}
.form-group select option { background: var(--bg-2); }
.btn-submit { width: 100%; justify-content: center; font-size: 1rem; }

/* ==================== FOOTER ==================== */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo { font-size: 1.4rem; margin-bottom: 0.75rem; }
.footer-brand p { color: var(--muted); font-size: 0.85rem; max-width: 280px; line-height: 1.7; }
.footer-col h4 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 1.2rem;
  font-weight: 700;
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
  transition: color var(--t);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.8rem;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { color: var(--muted); transition: color var(--t); }
.footer-legal a:hover { color: var(--text); }

/* ==================== UTILITY ==================== */
.separator {
  height: 1px;
  background: var(--border);
  margin: 0 auto;
}
.electric-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), var(--blue), transparent);
  opacity: 0.3;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  .hero-inner { gap: 3rem; }
  .product-hero-grid { gap: 3rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 8rem 0 4rem; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-sub { margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .hero-badges { justify-content: center; }
  .hero-visual { display: none; }

  .products-grid { grid-template-columns: 1fr; }

  .product-hero-grid { grid-template-columns: 1fr; }
  .product-img-large { display: none; }
  .hero-stats { gap: 1.5rem; }

  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 3rem 1.5rem; }
  .specs-tabs { gap: 0; }
  .spec-tab { padding: 0.65rem 1rem; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  .section { padding: 4rem 0; }
  .loader-bike { width: 85vw; }
}