:root {
    --black: #0a0a0a;
    --dark: #141414;
    --dark-2: #1c1c1c;
    --dark-3: #2a2a2a;
    --gray: #888;
    --gray-light: #b0b0b0;
    --white: #ffffff;
    --accent: #ffd100;
    --accent-hover: #e6bc00;
    --accent-dim: rgba(255, 209, 0, 0.15);
    --border: rgba(255, 255, 255, 0.08);
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-h: 72px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-h);
    transition: background var(--transition), backdrop-filter var(--transition);
    animation: slideDown 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    min-height: var(--header-h);
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--white);
    min-width: 0;
    flex-shrink: 1;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: var(--black);
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    letter-spacing: 2px;
    line-height: 1;
    white-space: nowrap;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--gray-light);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color var(--transition);
}

.nav-link:hover { color: var(--accent); }

.burger {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    flex: 0 0 2px;
    background: var(--white);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border: none;
    border-radius: 0;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-sm { padding: 10px 20px; font-size: 0.75rem; }
.btn-lg { padding: 16px 36px; font-size: 0.875rem; }
.btn-full { width: 100%; }

.btn-accent {
    background: var(--accent);
    color: var(--black);
}

.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 35%, rgba(255, 209, 0, 0.18), transparent 28%),
        linear-gradient(135deg, #151515 0%, #0a0a0a 45%, #1f1f1f 100%);
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.12); }
}

/* Entrance animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(16px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

.hero-animate {
    opacity: 0;
    animation: fadeInUp 0.85s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-animate:nth-child(1) { animation-delay: 0.15s; }
.hero-animate:nth-child(2) { animation-delay: 0.3s; }
.hero-animate:nth-child(3) { animation-delay: 0.45s; }
.hero-animate:nth-child(4) { animation-delay: 0.6s; }
.hero-animate:nth-child(5) { animation-delay: 0.75s; }

.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.24s; }

.reveal-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.5) 50%, rgba(10,10,10,0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: calc(var(--header-h) + 60px) 24px 80px;
    max-width: 800px;
}

.hero-label {
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 8vw, 6.5rem);
    line-height: 1.08;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--gray-light);
    max-width: 560px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--accent);
    letter-spacing: 1px;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-scroll {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 10;
    pointer-events: none;
    opacity: 0;
    animation: scrollHintIn 1s ease 1.2s forwards;
}

.hero-scroll.is-scrolled {
    opacity: 0 !important;
    transition: opacity 0.35s ease;
}

.hero-scroll span {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gray);
    animation: scrollTextPulse 2.5s ease-in-out infinite;
}

.scroll-line {
    position: relative;
    width: 1px;
    height: 48px;
    background: rgba(255, 209, 0, 0.2);
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 12px;
    background: var(--accent);
    animation: scrollDrop 2s ease-in-out infinite;
}

@keyframes scrollHintIn {
    from { opacity: 0; transform: translateX(-50%) translateY(12px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes scrollTextPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes scrollDrop {
    0% { transform: translateY(-12px); opacity: 0; }
    30% { opacity: 1; }
    100% { transform: translateY(48px); opacity: 0; }
}

/* Brands */
.brands-section {
    padding: 48px 0;
    border-bottom: 1px solid var(--border);
    background: var(--dark);
}

.brands-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 64px;
    flex-wrap: wrap;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 4px;
    color: var(--gray);
    transition: color var(--transition), opacity 0.5s ease, transform 0.5s ease;
}

.brand-name:hover { color: var(--white); }

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-label {
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    letter-spacing: 2px;
    margin-bottom: 16px;
    line-height: 1.08;
}

.section-desc {
    color: var(--gray-light);
    max-width: 560px;
    margin: 0 auto;
}

/* Models */
.models-section {
    padding: 100px 0;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--gray-light);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--black);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px;
    color: var(--gray);
}

.model-card {
    background: var(--dark);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition),
                opacity 0.6s ease, transform 0.6s ease;
    cursor: pointer;
}

.model-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 209, 0, 0.3);
}

.model-card-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.model-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.model-card:hover .model-card-image img {
    transform: scale(1.05);
}

.model-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--black);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.model-card-body {
    padding: 24px;
}

.model-brand {
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.model-name {
    font-family: var(--font-display);
    font-size: 1.6rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.model-desc {
    font-size: 0.875rem;
    color: var(--gray-light);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.model-specs {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.model-spec {
    font-size: 0.75rem;
    color: var(--gray);
}

.model-spec strong {
    display: block;
    color: var(--white);
    font-weight: 600;
}

.model-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.model-price-label {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.model-inquiry-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition);
}

.model-inquiry-btn:hover {
    background: var(--accent);
    color: var(--black);
}

/* Featured */
.featured-section {
    padding: 0 0 100px;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

.featured-card {
    position: relative;
    height: 400px;
    overflow: hidden;
    cursor: pointer;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.featured-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.featured-card:hover img { transform: scale(1.05); }

.featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,10,10,0.95) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
}

.featured-brand {
    color: var(--accent);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.featured-name {
    font-family: var(--font-display);
    font-size: 2rem;
    letter-spacing: 1px;
}

/* About */
.about-section {
    padding: 100px 0;
    background: var(--dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text {
    color: var(--gray-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.feature-card {
    padding: 24px;
    border: 1px solid var(--border);
    transition: border-color var(--transition);
}

.feature-card:hover { border-color: rgba(255, 209, 0, 0.2); }

.feature-icon {
    width: 40px;
    height: 40px;
    color: var(--accent);
    margin-bottom: 16px;
}

.feature-icon svg { width: 100%; height: 100%; }

.feature-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.6;
}

/* Contact */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-desc {
    color: var(--gray-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-list {
    list-style: none;
}

.contact-list li {
    margin-bottom: 20px;
}

.contact-label {
    display: block;
    font-size: 0.7rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-list a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color var(--transition);
}

.contact-list a:hover { color: var(--accent); }

.contact-form {
    background: var(--dark);
    padding: 40px;
    border: 1px solid var(--border);
}

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

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-light);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--dark-2);
    border: 1px solid var(--border);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-note {
    margin-top: 12px;
    font-size: 0.75rem;
    color: var(--gray);
    text-align: center;
}

/* Footer */
.footer {
    padding: 56px 0 28px;
    border-top: 1px solid var(--border);
    background: var(--dark);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--border);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.footer-about {
    font-size: 0.85rem;
    color: var(--gray-light);
    line-height: 1.6;
    max-width: 320px;
}

.footer-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 18px;
}

.footer-link {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-light);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color var(--transition);
}

.footer-link:hover { color: var(--accent); }

.footer-req {
    font-size: 0.8rem;
    color: var(--gray);
    line-height: 1.55;
    margin-bottom: 8px;
}

.footer-req a {
    color: var(--gray-light);
    text-decoration: none;
}

.footer-req a:hover { color: var(--accent); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 24px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--gray);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
    animation: overlayIn 0.3s ease forwards;
}

.modal-overlay.active .modal {
    animation: modalIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal {
    background: var(--dark);
    border: 1px solid var(--border);
    padding: 40px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-lg { max-width: 800px; }

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition);
    line-height: 1;
}

.modal-close:hover { color: var(--white); }

.modal-title {
    font-family: var(--font-display);
    font-size: 2rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.modal-subtitle {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* Detail modal */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.detail-image {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.detail-brand {
    color: var(--accent);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.detail-name {
    font-family: var(--font-display);
    font-size: 2.5rem;
    letter-spacing: 1px;
    margin: 8px 0 16px;
}

.detail-desc {
    color: var(--gray-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.detail-specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
}

.detail-specs-table td {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

.detail-specs-table td:first-child {
    color: var(--gray);
    width: 40%;
}

.detail-price-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.detail-price {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 2rem;
    color: var(--accent);
    letter-spacing: 0.5px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    padding: 16px 24px;
    background: var(--dark-2);
    border: 1px solid var(--accent);
    color: var(--white);
    font-size: 0.875rem;
    z-index: 3000;
    transform: translateY(120%);
    transition: transform 0.4s ease;
}

.toast.show { transform: translateY(0); }

.toast.error { border-color: #ef4444; }

/* Responsive */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid,
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        background: rgba(10, 10, 10, 0.96);
        border-bottom: 1px solid var(--border);
    }

    .header-inner {
        height: var(--header-h);
        min-height: var(--header-h);
        padding-top: 0;
        padding-bottom: 0;
    }

    .logo {
        gap: 10px;
        max-width: calc(100% - 60px);
        overflow: hidden;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
        flex: 0 0 36px;
        font-size: 1.05rem;
    }

    .logo-text {
        font-size: 1.2rem;
        letter-spacing: 0.5px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--black);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-120%);
        transition: transform var(--transition);
        border-bottom: 1px solid var(--border);
    }

    .nav.open { transform: translateY(0); }

    .burger { display: flex; }

    .header-inner .btn-accent { display: none; }

    .hero-stats { gap: 24px; }

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

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

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

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-scroll { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal, .reveal-stagger > * {
        opacity: 1;
        transform: none;
    }
}