/* ============================================
   LuxVentura — Design System
   ============================================ */

:root {
  --color-bg: #ffffff;
  --color-surface: #fafaf9;
  --color-text: #0a0a0a;
  --color-text-muted: #6b6b6b;
  --color-text-subtle: #9a9a9a;
  --color-border: #e8e8e6;
  --color-accent: #0a0a0a;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --max-width: 1180px;
  --gutter: 2rem;
  --radius: 2px;
  --transition: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.6; color: var(--color-text); background: var(--color-bg); font-feature-settings: 'ss01', 'cv11'; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); letter-spacing: -0.035em; font-weight: 400; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); letter-spacing: -0.03em; font-weight: 400; }
h3 { font-size: 1.0625rem; font-weight: 500; letter-spacing: -0.01em; }
p { color: var(--color-text-muted); line-height: 1.65; }
.eyebrow { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--color-text-subtle); font-weight: 500; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 7rem 0; }
@media (max-width: 768px) { :root { --gutter: 1.25rem; } .section { padding: 4.5rem 0; } }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, 0.85); backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--color-border); }
.nav-inner { max-width: var(--max-width); margin: 0 auto; padding: 1.25rem var(--gutter); display: flex; align-items: center; justify-content: space-between; }
.nav-brand { font-size: 1.0625rem; font-weight: 500; letter-spacing: -0.02em; color: var(--color-text); }
.nav-brand .brand-mark { opacity: 0.4; margin-right: 0.35em; }
.nav-links { display: flex; align-items: center; gap: 2.25rem; list-style: none; }
.nav-links a { font-size: 0.9375rem; color: var(--color-text-muted); transition: color var(--transition); }
.nav-links a:hover, .nav-links a.is-active { color: var(--color-text); }
.nav-cta { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.55rem 1rem; background: var(--color-text); color: #fff !important; font-size: 0.875rem; font-weight: 500; border-radius: var(--radius); transition: color var(--transition), background var(--transition); }
.nav-cta:hover { color: #b8b8b8 !important; background: var(--color-text); }
.nav-cta:active { color: #8a8a8a !important; }
.nav-toggle { display: none; width: 24px; height: 24px; flex-direction: column; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--color-text); }

@media (max-width: 720px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--color-border); flex-direction: column; align-items: stretch; gap: 0; padding: 0.5rem var(--gutter) 1.25rem; }
  .nav-links.is-open { display: flex; }
  .nav-links li { padding: 0.625rem 0; border-bottom: 1px solid var(--color-border); }
  .nav-links li:last-child { border-bottom: none; padding-top: 1rem; }
  .nav-cta { justify-content: center; }
  .nav-toggle { display: flex; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 1.5rem; font-size: 0.9375rem; font-weight: 500; letter-spacing: -0.005em; border-radius: var(--radius); transition: all var(--transition); white-space: nowrap; cursor: pointer; }
.btn-primary { background: var(--color-text); color: #fff; border: 1px solid var(--color-text); }
.btn-primary:hover { background: #2a2a2a; border-color: #2a2a2a; }
.btn-secondary { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-text); }
.btn-arrow::after { content: '→'; transition: transform var(--transition); }
.btn-arrow:hover::after { transform: translateX(3px); }

/* Hero */
.hero { padding: 7rem 0 6rem; border-bottom: 1px solid var(--color-border); }
.hero-eyebrow { margin-bottom: 1.75rem; display: inline-flex; align-items: center; gap: 0.6rem; }
.hero-eyebrow::before { content: ''; width: 6px; height: 6px; background: var(--color-text); border-radius: 50%; }
.hero-headline { max-width: 18ch; margin-bottom: 1.75rem; }
.hero-sub { max-width: 48ch; font-size: 1.125rem; color: var(--color-text-muted); margin-bottom: 2.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
@media (max-width: 768px) { .hero { padding: 4.5rem 0 4rem; } .hero-sub { font-size: 1rem; } }

/* Section heads + grids */
.section-head { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; margin-bottom: 4rem; align-items: end; }
.section-head .eyebrow { margin-bottom: 1rem; display: block; }
.section-head p { max-width: 52ch; font-size: 1.0625rem; }
@media (max-width: 720px) { .section-head { grid-template-columns: 1fr; gap: 1.5rem; margin-bottom: 2.5rem; } }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--color-border); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--color-border); }
.grid-cell { padding: 2.5rem 2rem 2.5rem 0; border-right: 1px solid var(--color-border); }
.grid-cell:last-child { border-right: none; padding-right: 0; }
.grid-cell:not(:first-child) { padding-left: 2rem; }
.grid-cell .step-number { font-size: 0.75rem; color: var(--color-text-subtle); font-feature-settings: 'tnum'; margin-bottom: 2.5rem; display: block; letter-spacing: 0.06em; }
.grid-cell h3 { margin-bottom: 0.75rem; font-size: 1.125rem; }
.grid-cell p { font-size: 0.9375rem; }

@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 .grid-cell:nth-child(2) { border-right: none; padding-right: 0; }
  .grid-4 .grid-cell:nth-child(3), .grid-4 .grid-cell:nth-child(4) { border-top: 1px solid var(--color-border); padding-top: 2.5rem; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-3 .grid-cell { border-right: none; padding-left: 0 !important; padding-right: 0; }
  .grid-3 .grid-cell:not(:first-child) { border-top: 1px solid var(--color-border); }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .grid-4 .grid-cell { border-right: none; padding-left: 0 !important; padding-right: 0; }
  .grid-4 .grid-cell:not(:first-child) { border-top: 1px solid var(--color-border); }
}

/* Footer */
.footer { border-top: 1px solid var(--color-border); padding: 4rem 0 2.5rem; margin-top: 4rem; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; padding-bottom: 3rem; border-bottom: 1px solid var(--color-border); }
.footer-brand h4 { font-size: 1rem; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.footer-brand p { font-size: 0.9375rem; max-width: 32ch; }
.footer-col h5 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--color-text-subtle); font-weight: 500; margin-bottom: 1.25rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { font-size: 0.9375rem; color: var(--color-text-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--color-text); }
.footer-bottom { padding-top: 2rem; display: flex; justify-content: space-between; align-items: center; font-size: 0.8125rem; color: var(--color-text-subtle); }
@media (max-width: 720px) { .footer-top { grid-template-columns: 1fr; gap: 2rem; } .footer-bottom { flex-direction: column; gap: 0.5rem; align-items: flex-start; } }

/* Inventory */
.page-head { padding: 5rem 0 3rem; border-bottom: 1px solid var(--color-border); }
.page-head h1 { margin-bottom: 1rem; max-width: 20ch; }
.page-head p { max-width: 52ch; font-size: 1.0625rem; }
.inventory-meta { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 0; border-bottom: 1px solid var(--color-border); font-size: 0.875rem; color: var(--color-text-muted); }
.inventory-meta .count { font-feature-settings: 'tnum'; }
.inventory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem 2rem; padding: 3rem 0 6rem; }
.vehicle-card { display: flex; flex-direction: column; gap: 1rem; transition: transform var(--transition); cursor: pointer; }
.vehicle-card:hover .vehicle-image { transform: scale(1.015); }
.vehicle-image-wrap { position: relative; aspect-ratio: 4 / 3; background: var(--color-surface); overflow: hidden; border-radius: var(--radius); }
.vehicle-image { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms cubic-bezier(0.4, 0, 0.2, 1); }
.vehicle-tag { position: absolute; top: 0.875rem; left: 0.875rem; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); padding: 0.35rem 0.65rem; font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; border-radius: 2px; }
.vehicle-info { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.vehicle-title { font-size: 1.0625rem; font-weight: 500; letter-spacing: -0.015em; margin-bottom: 0.25rem; }
.vehicle-meta { font-size: 0.875rem; color: var(--color-text-muted); }
.vehicle-price { font-size: 0.9375rem; font-weight: 500; color: var(--color-text); white-space: nowrap; font-feature-settings: 'tnum'; }
@media (max-width: 900px) { .inventory-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .inventory-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* Vehicle Detail */
.back-link { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.875rem; color: var(--color-text-muted); padding: 1.5rem 0; transition: color var(--transition); cursor: pointer; }
.back-link:hover { color: var(--color-text); }
.back-link::before { content: '←'; }

/* Carousel */
.carousel { margin-bottom: 1.5rem; }
.carousel-stage { position: relative; aspect-ratio: 16/9; background: var(--color-surface); border-radius: var(--radius); overflow: hidden; }
.carousel-track { position: absolute; inset: 0; display: flex; transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1); touch-action: pan-y; }
.carousel-slide { min-width: 100%; height: 100%; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }

.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,0.92); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; line-height: 1; color: var(--color-text); border: 1px solid rgba(0,0,0,0.06); cursor: pointer; transition: background var(--transition), transform var(--transition); z-index: 2; }
.carousel-btn:hover { background: #fff; transform: translateY(-50%) scale(1.05); }
.carousel-btn:disabled { opacity: 0.35; cursor: default; }
.carousel-btn.prev { left: 1rem; }
.carousel-btn.next { right: 1rem; }

.carousel-counter { position: absolute; bottom: 1rem; right: 1rem; background: rgba(10,10,10,0.7); color: #fff; padding: 0.3rem 0.65rem; font-size: 0.75rem; letter-spacing: 0.06em; border-radius: 2px; font-feature-settings: 'tnum'; backdrop-filter: blur(6px); }

.carousel-thumbs { display: flex; gap: 0.5rem; margin-top: 0.75rem; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; padding-bottom: 0.25rem; }
.carousel-thumbs::-webkit-scrollbar { display: none; }
.carousel-thumb { flex: 0 0 auto; width: 84px; aspect-ratio: 4/3; border-radius: 2px; overflow: hidden; cursor: pointer; opacity: 0.5; transition: opacity var(--transition), outline var(--transition); outline: 2px solid transparent; outline-offset: 2px; background: var(--color-surface); }
.carousel-thumb:hover { opacity: 0.8; }
.carousel-thumb.is-active { opacity: 1; outline-color: var(--color-text); }
.carousel-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

@media (max-width: 560px) {
  .carousel-btn { width: 36px; height: 36px; font-size: 1rem; }
  .carousel-btn.prev { left: 0.5rem; }
  .carousel-btn.next { right: 0.5rem; }
  .carousel-thumb { width: 64px; }
}

.vehicle-detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 5rem; padding-bottom: 6rem; margin-top: 2.5rem; }
.vehicle-detail-main h1 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 0.5rem; }
.vehicle-detail-location { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--color-text-muted); font-size: 0.9375rem; margin-bottom: 2.5rem; }
.vehicle-detail-location::before { content: ''; width: 6px; height: 6px; background: var(--color-text-muted); border-radius: 50%; }
.overview-label { display: block; margin-bottom: 1rem; }
.vehicle-overview { font-size: 1.0625rem; line-height: 1.7; margin-bottom: 3rem; color: var(--color-text); }
.specs { border-top: 1px solid var(--color-border); }
.specs-title { padding-top: 2rem; margin-bottom: 2rem; }
.specs-grid { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 3rem; }
.spec-row { padding: 1.25rem 0; border-bottom: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.spec-label { font-size: 0.8125rem; color: var(--color-text-subtle); text-transform: uppercase; letter-spacing: 0.08em; }
.spec-value { font-size: 0.9375rem; color: var(--color-text); font-weight: 500; text-align: right; }
.vehicle-sidebar { position: sticky; top: 6rem; align-self: start; padding: 2rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); }
.sidebar-price-label { display: block; margin-bottom: 0.5rem; }
.sidebar-price { font-size: 1.75rem; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 1.75rem; font-feature-settings: 'tnum'; }
.vehicle-sidebar .btn { width: 100%; padding: 1rem 1.5rem; }
.sidebar-note { margin-top: 1.25rem; font-size: 0.8125rem; color: var(--color-text-subtle); line-height: 1.55; }
@media (max-width: 900px) { .vehicle-detail-grid { grid-template-columns: 1fr; gap: 3rem; } .vehicle-sidebar { position: static; } .specs-grid { grid-template-columns: 1fr; } }

/* Split (Sell) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.split-left h2 { margin-bottom: 1.5rem; }
.split-left p { font-size: 1.0625rem; margin-bottom: 2rem; max-width: 42ch; }
.value-list { list-style: none; margin-bottom: 2.5rem; }
.value-list li { padding: 1rem 0; border-bottom: 1px solid var(--color-border); display: flex; align-items: flex-start; gap: 1rem; font-size: 0.9375rem; }
.value-list li:first-child { border-top: 1px solid var(--color-border); }
.value-list .marker { font-size: 0.75rem; color: var(--color-text-subtle); font-feature-settings: 'tnum'; letter-spacing: 0.06em; padding-top: 0.15rem; min-width: 2rem; }
.steps { display: flex; flex-direction: column; border-top: 1px solid var(--color-border); }
.step { padding: 2rem 0; border-bottom: 1px solid var(--color-border); display: grid; grid-template-columns: 4rem 1fr; gap: 1.5rem; align-items: start; }
.step-num { font-size: 0.75rem; color: var(--color-text-subtle); letter-spacing: 0.1em; font-feature-settings: 'tnum'; padding-top: 0.3rem; }
.step-body h3 { margin-bottom: 0.5rem; font-size: 1.125rem; }
.step-body p { font-size: 0.9375rem; max-width: 50ch; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 3rem; } }

/* Process */
.process-intro { max-width: 60ch; margin-bottom: 4rem; }
.process-intro p { font-size: 1.125rem; }
.process-steps { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--color-border); }
.process-step { display: grid; grid-template-columns: 8rem 1fr 2fr; gap: 3rem; padding: 3rem 0; border-bottom: 1px solid var(--color-border); align-items: start; }
.process-step-num { font-size: 0.75rem; letter-spacing: 0.14em; color: var(--color-text-subtle); padding-top: 0.4rem; }
.process-step-title { font-size: 1.375rem; font-weight: 400; letter-spacing: -0.02em; padding-top: 0.1rem; }
.process-step-body p { font-size: 0.9375rem; max-width: 56ch; line-height: 1.7; }
.process-step-body ul { list-style: none; margin-top: 1rem; }
.process-step-body li { padding: 0.4rem 0; padding-left: 1.25rem; position: relative; font-size: 0.875rem; color: var(--color-text-muted); }
.process-step-body li::before { content: ''; position: absolute; left: 0; top: 0.9rem; width: 6px; height: 1px; background: var(--color-text-subtle); }
@media (max-width: 900px) { .process-step { grid-template-columns: 1fr; gap: 1rem; padding: 2.25rem 0; } .process-step-title { font-size: 1.25rem; } }

/* CTA */
.cta-block { background: var(--color-text); color: #fff; padding: 5rem 0; margin-top: 4rem; border-radius: var(--radius); }
.cta-block .container { display: grid; grid-template-columns: 1.5fr 1fr; gap: 3rem; align-items: center; }
.cta-block h2 { color: #fff; max-width: 20ch; }
.cta-block p { color: rgba(255,255,255,0.6); max-width: 38ch; margin-top: 1rem; }
.cta-block .btn-primary { background: #fff; color: var(--color-text); border-color: #fff; justify-self: end; }
.cta-block .btn-primary:hover { background: rgba(255,255,255,0.9); border-color: rgba(255,255,255,0.9); }
@media (max-width: 720px) { .cta-block .container { grid-template-columns: 1fr; gap: 2rem; } .cta-block .btn-primary { justify-self: start; } }

/* Fade */
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeUp 600ms cubic-bezier(0.2,0,0,1) both; }
.fade-in-delay-1 { animation-delay: 80ms; }
.fade-in-delay-2 { animation-delay: 160ms; }
.fade-in-delay-3 { animation-delay: 240ms; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }