/* ==========================================================================
   1. CUSTOM PROPERTIES
   ========================================================================== */

:root {
    --gold: #c4a24a;
    --gold-bright: #d4b860;
    --gold-dim: #9a7b30;
    --gold-glow: rgba(196, 162, 74, 0.25);
    --bg: #f9f8f5;
    --bg-dark: #f2f0eb;
    --surface: #ffffff;
    --text: #141210;
    --text-soft: #5c5852;
    --text-muted: #8a857e;
    --border: rgba(196, 162, 74, 0.18);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 24px 80px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    --transition-slow: 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    --font-display: "Cormorant Garamond", Georgia, serif;
    --font-body:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, sans-serif;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
}

.page-loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        opacity 0.5s ease,
        visibility 0.5s ease;
}
.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-logo {
    animation: zoom-in-zoom-out 1s ease infinite;
}
.loader-logo img {
    height: 60px;
    width: auto;
}

::selection {
    background: var(--gold);
    color: #ffffff;
}

::-moz-selection {
    background: var(--gold);
    color: #ffffff;
}

/* ==========================================================================
   3. TYPOGRAPHY SCALE
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 300;
    line-height: 1.15;
    color: var(--text);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    letter-spacing: -0.01em;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    letter-spacing: -0.005em;
}

h3 {
    font-size: 1.3rem;
    letter-spacing: 0;
}

p {
    margin-bottom: 1em;
    color: var(--text-soft);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================================================
   4. UTILITY CLASSES
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   5. FOCUS
   ========================================================================== */

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 4px;
    border-radius: 4px;
}

/* ==========================================================================
   6. KEYFRAME ANIMATIONS
   ========================================================================== */

@keyframes zoom-in-zoom-out {
    0% {
        transform: scale(0.92);
    }
    25% {
        transform: scale(1.08);
    }
    50% {
        transform: scale(1);
    }
    75% {
        transform: scale(1.06);
    }
    100% {
        transform: scale(0.92);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(48px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes heroBgDrift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ==========================================================================
   6. LANGUAGE BAR
   ========================================================================== */

.lang-bar {
    position: fixed;
    top: 16px;
    right: 24px;
    z-index: 100;
    display: flex;
    gap: 4px;
    align-items: center;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 28px;
    padding: 8px 16px;
}

@media (max-width: 768px) {
    .lang-bar {
        top: 0;
        right: 0;
        left: 0;
        border-radius: 0 0 16px 16px;
        justify-content: center;
        padding: 8px 12px;
        gap: 2px;
    }
    .lang-flag {
        gap: 4px;
        padding: 3px 6px;
    }
    .lang-flag span {
        font-size: 0.7rem;
    }
    .lang-flag img {
        width: 18px;
        height: 18px;
    }
}

.lang-flag {
    display: flex;
    align-items: center;
    gap: 7px;
    text-decoration: none;
    opacity: 0.5;
    transition: opacity 0.3s;
    line-height: 1;
    padding: 4px 8px;
    border-radius: 16px;
}
.lang-flag span {
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}
.lang-flag img {
    width: 22px;
    height: 22px;
    border-radius: 2px;
    display: block;
}
.lang-flag:hover,
.lang-flag.active {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   7. HERO
   ========================================================================== */

.hero {
    position: relative;
    display: grid;
    grid-template-columns: 45% 55%;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 0;
    overflow: hidden;
    background: linear-gradient(
        135deg,
        #12100e 0%,
        #1a1712 30%,
        #12100e 60%,
        #0d0b08 100%
    );
    background-size: 300% 300%;
    animation: heroBgDrift 20s ease infinite;
}

.hero-mosaic-bg {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 1fr);
    opacity: 0.35;
    filter: grayscale(60%);
    z-index: 0;
    pointer-events: none;
}
.hero-mosaic-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-brand {
    position: relative;
    z-index: 2;
    grid-column: 1 / 2;
    padding: 80px clamp(40px, 6vw, 72px) 80px clamp(40px, 8vw, 120px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-logo {
    width: clamp(160px, 26vw, 350px);
    height: auto;
    margin-bottom: clamp(24px, 5vw, 56px);
    filter: brightness(0) invert(1);
    animation: fadeInUp 1s var(--transition) both;
}

.hero-text .gold-text-wrap {
    display: inline-block;
    position: relative;
}

.hero-text .gold-text {
    display: inline-block;
    position: relative;
    z-index: 1;
    animation: textGlow 3s ease-in-out infinite;
}

@keyframes textGlow {
    0%,
    100% {
        text-shadow:
            0 0 20px rgba(255, 220, 140, 0.6),
            0 0 60px rgba(212, 184, 96, 0.3),
            0 0 100px rgba(196, 162, 74, 0.15);
    }
    50% {
        text-shadow:
            0 0 35px rgba(255, 220, 140, 0.9),
            0 0 100px rgba(212, 184, 96, 0.5),
            0 0 160px rgba(196, 162, 74, 0.3);
    }
}

.gold-text {
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 5.6vw, 4.2rem);
    font-weight: 300;
    letter-spacing: 0.12em;
    line-height: 1.1;
    color: var(--gold-bright);
    text-transform: uppercase;
}

.tagline {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 3vw, 2.1rem);
    font-weight: 400;
    font-style: italic;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    max-width: clamp(280px, 60vw, 640px);
    animation: fadeInUp 1s var(--transition) 0.3s both;
}

.hero-visual {
    position: relative;
    z-index: 2;
    grid-column: 2 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px clamp(24px, 5vw, 60px);
}
.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 300;
    letter-spacing: 0.03em;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    max-width: clamp(280px, 40vw, 440px);
    padding: 20px 24px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--gold);
    border-radius: 10px;
    text-align: justify;
    animation: fadeInUp 1s var(--transition) 0.45s both;
}
.hero-subtitle .gold-accent {
    color: var(--gold);
    font-weight: 500;
}

.hero-inline-logo {
    display: inline;
    height: 1.5em;
    width: auto;
    vertical-align: middle;
    filter: brightness(0) invert(1);
    margin: 0 2px;
}

.scroll-arrow {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    color: var(--gold);
    opacity: 0.7;
    transition: opacity 0.3s ease;
    animation: bounceDown 2s ease-in-out infinite;
}

.scroll-arrow svg {
    width: 80px;
    height: 80px;
    display: block;
}

.scroll-arrow:hover {
    opacity: 1;
}

@keyframes bounceDown {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(12px);
    }
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    padding: 16px 40px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    background: transparent;
    border: 1.5px solid rgba(196, 162, 74, 0.4);
    border-radius: 40px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s var(--transition) 0.6s both;
}

.cta-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        transparent 0%,
        rgba(196, 162, 74, 0.08) 45%,
        rgba(196, 162, 74, 0.12) 50%,
        rgba(196, 162, 74, 0.08) 55%,
        transparent 100%
    );
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.cta-btn:hover {
    border-color: var(--gold);
    color: var(--gold-bright);
    box-shadow: 0 0 40px rgba(196, 162, 74, 0.12);
    transform: translateY(-2px);
}

.cta-btn:hover::before {
    opacity: 1;
    animation: shimmer 2s var(--transition) infinite;
}

.cta-btn:active {
    transform: translateY(0);
    transition: transform 0.1s ease;
}

/* ==========================================================================
   9. SECTION HEADERS
   ========================================================================== */

.section-header {
    text-align: center;
    margin-bottom: 80px;
    padding-top: 20px;
    animation: fadeInUp 0.9s var(--transition) both;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 2.75rem);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 28px;
    letter-spacing: -0.005em;
}

.section-header .gold-line {
    display: block;
    width: 48px;
    height: 2px;
    background: var(--gold);
    margin: 0 auto;
    position: relative;
}

.section-header .gold-line::after {
    content: "";
    position: absolute;
    top: 50%;
    left: calc(100% + 16px);
    width: 128px;
    height: 1px;
    background: linear-gradient(to right, var(--gold-dim), transparent);
    transform: translateY(-50%);
    opacity: 0.4;
}

.section-header .gold-line::before {
    content: "";
    position: absolute;
    top: 50%;
    right: calc(100% + 16px);
    width: 128px;
    height: 1px;
    background: linear-gradient(to left, var(--gold-dim), transparent);
    transform: translateY(-50%);
    opacity: 0.4;
}

/* ==========================================================================
   10. FEATURES
   ========================================================================== */

.features {
    background: var(--surface);
    padding: 60px clamp(24px, 5vw, 80px) 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(16px, 2.5vw, 28px);
    max-width: 1280px;
    margin: 0 auto;
}

.feature-card {
    position: relative;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    padding: clamp(28px, 4vw, 48px) clamp(20px, 3vw, 32px)
        clamp(24px, 3.5vw, 40px);
    min-height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: all var(--transition);
    overflow: hidden;
    animation: scaleIn 0.7s var(--transition) both;
}

.feature-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(196, 162, 74, 0.04) 0%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border);
    background: var(--surface);
}

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

.feature-icon {
    font-size: 3.2rem;
    margin-bottom: 28px;
    display: block;
    line-height: 1;
    transition: transform var(--transition);
    filter: grayscale(20%);
}

.feature-card:hover .feature-icon {
    transform: scale(1.12) translateY(-4px);
    filter: grayscale(0%);
    animation: float 3s ease-in-out infinite;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.2vw, 1.55rem);
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
    letter-spacing: 0;
}

.feature-card p {
    font-family: var(--font-body);
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    font-weight: 400;
    color: var(--text-soft);
    line-height: 1.7;
    margin-bottom: 0;
    max-width: 240px;
}

/* ==========================================================================
   11. SHOWCASE
   ========================================================================== */

.showcase {
    background: var(--bg-dark);
    padding: 60px clamp(24px, 5vw, 80px) 40px;
    overflow: hidden;
}

.showcase-inner {
    max-width: 1280px;
    margin: 0 auto 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.showcase-image-wrap {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    aspect-ratio: 1 / 1;
}

.showcase-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(196, 162, 74, 0.3);
    color: var(--gold);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0;
}

.showcase-image-wrap:hover .showcase-arrow {
    opacity: 1;
}

.showcase-arrow:hover {
    background: rgba(196, 162, 74, 0.2);
    border-color: var(--gold);
}

.showcase-arrow-left {
    left: 12px;
}
.showcase-arrow-right {
    right: 12px;
}

.showcase-image-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(196, 162, 74, 0.12);
    pointer-events: none;
}

.showcase-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.8s ease;
}

.showcase-image-wrap:hover img {
    transform: scale(1.04);
    transition: transform 8s ease;
}

.showcase-text {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    margin-left: -48px;
    z-index: 2;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.showcase-text::before {
    content: "";
    position: absolute;
    top: 40%;
    left: -32px;
    width: 32px;
    height: 2px;
    background: var(--gold);
    transform: translateY(-50%);
}

.showcase-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 28px;
    letter-spacing: -0.005em;
    line-height: 1.25;
}

.showcase-text p {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--text-soft);
    line-height: 1.8;
    margin-bottom: 20px;
}

.showcase-text p:last-child {
    margin-bottom: 0;
}

.showcase-text .gold-accent {
    color: var(--gold);
    font-weight: 500;
}

.showcase-strip {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 20px 0;
}

.showcase-strip::before,
.showcase-strip::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 2;
    pointer-events: none;
}

.showcase-strip::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-dark) 0%, transparent 100%);
}

.showcase-strip::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-dark) 0%, transparent 100%);
}

.showcase-strip .strip-track {
    display: flex;
    gap: 20px;
    width: max-content;
    will-change: transform;
}

.showcase-strip .strip-track img {
    height: clamp(90px, 10vw, 140px);
    width: auto;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease;
    filter: saturate(0.9);
}

.showcase-strip .strip-track img:hover {
    transform: scale(1.06) translateY(-4px);
    box-shadow: var(--shadow-lg);
    filter: saturate(1);
}

/* ==========================================================================
   12. APPLICATIONS
   ========================================================================== */

.applications {
    background: var(--bg-dark);
    padding: 60px clamp(24px, 5vw, 80px) 100px;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1080px;
    margin: 0 auto;
}

.app-card {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 52px 48px;
    border: 1px solid transparent;
    transition: all var(--transition);
    overflow: hidden;
    animation: scaleIn 0.7s var(--transition) both;
}

.app-card::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 48px;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: width var(--transition);
}

.app-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border);
}

.app-card:hover::before {
    width: calc(100% - 96px);
}

.app-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 28px;
    line-height: 1;
}

.app-card h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
}

.app-card p {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-soft);
    line-height: 1.75;
    margin-bottom: 0;
}

.app-strip-wrap {
    margin-top: 40px;
}
.app-strip-track {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.app-strip-track img {
    height: 180px;
    width: 180px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}
.app-strip-track img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   14. FAQ
   ========================================================================== */

.faq {
    background: var(--surface);
    padding: 60px clamp(24px, 5vw, 80px) 100px;
}

.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid rgba(196, 162, 74, 0.12);
    transition: all var(--transition-fast);
    animation: fadeInUp 0.7s var(--transition) both;
}

.faq-item:hover {
    background: rgba(196, 162, 74, 0.02);
}

.faq-item.open {
    background: rgba(196, 162, 74, 0.03);
    border-left: 3px solid var(--gold);
    padding-left: 28px;
    margin-left: -31px;
}

.faq-item.open .faq-q {
    color: var(--gold);
}

.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 28px 12px 28px 0;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text);
    text-align: left;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast);
    gap: 24px;
    line-height: 1.4;
}

.faq-q:hover {
    color: var(--gold);
}

.faq-q::after {
    content: "";
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    border-right: 1.5px solid var(--text-muted);
    border-bottom: 1.5px solid var(--text-muted);
    transform: rotate(45deg);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast);
}

.faq-item.open .faq-q::after {
    transform: rotate(-135deg);
    border-color: var(--gold);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition:
        max-height 0.5s cubic-bezier(0.22, 1, 0.36, 1),
        padding 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.open .faq-a {
    max-height: 300px;
}

.faq-a p {
    font-family: var(--font-body);
    font-size: 0.925rem;
    font-weight: 400;
    color: var(--text-soft);
    line-height: 1.8;
    padding-bottom: 32px;
    margin-bottom: 0;
}

/* ==========================================================================
   15. MODELS
   ========================================================================== */

.models {
    background: var(--bg-dark);
    padding: 60px clamp(24px, 5vw, 80px) 100px;
}

.models-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
    max-width: 1400px;
    margin: 0 auto;
}

.model-card {
    flex: 0 0 260px;
    max-width: 100%;
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: pointer;
    animation: scaleIn 0.7s var(--transition) both;
}

.model-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.model-card-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
    transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.model-card:hover .model-card-img {
    transform: scale(1.08);
}

.model-card-body {
    padding: 28px 28px 32px;
}

.model-card-body h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    letter-spacing: 0.02em;
}

.model-card-body .dims {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.size-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
    padding: 5px 16px;
    border: 1px solid rgba(196, 162, 74, 0.3);
    border-radius: 20px;
    background: rgba(196, 162, 74, 0.04);
    transition: all var(--transition-fast);
}

.model-card:hover .size-badge {
    background: rgba(196, 162, 74, 0.1);
    border-color: var(--gold);
}

/* ==========================================================================
   16. LIGHTBOX
   ========================================================================== */

.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(13, 11, 8, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    cursor: pointer;
    animation: fadeInUp 0.35s var(--transition-fast) both;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    object-fit: contain;
    animation: scaleIn 0.4s var(--transition) 0.1s both;
}

/* ==========================================================================
   16b. COLORS
   ========================================================================== */

.colors {
    background: var(--surface);
    padding: 40px clamp(24px, 5vw, 80px) 80px;
}

.colors-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
}

.colors-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 24px;
    line-height: 1.25;
}

.colors-text p {
    font-family: var(--font-body);
    font-size: 1.1rem;
    color: var(--text-soft);
    line-height: 1.8;
    max-width: 480px;
}

.colors-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   16c. SHOWCASE DOTS
   ========================================================================== */

.showcase-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.showcase-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.showcase-dot.active {
    background: var(--gold);
    transform: scale(1.4);
}

.showcase-dot:hover {
    background: rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   16d. BACK-TO-TOP
   ========================================================================== */

.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 99;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gold);
    color: #0d0b08;
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(196, 162, 74, 0.4);
}

/* ==========================================================================
   16e. BACKGROUND TEXTURE
   ========================================================================== */

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(
            ellipse at 20% 50%,
            rgba(196, 162, 74, 0.03) 0%,
            transparent 50%
        ),
        radial-gradient(
            ellipse at 80% 20%,
            rgba(196, 162, 74, 0.02) 0%,
            transparent 50%
        );
}

/* ==========================================================================
   17. FOOTER
   ========================================================================== */

.site-footer {
    background: #0d0b08;
    color: rgba(255, 255, 255, 0.6);
    padding: 80px clamp(24px, 6vw, 100px) 0;
    border-top: 1px solid var(--gold-dim);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.3fr 1fr 0.9fr;
    gap: 48px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-logo {
    width: 160px;
    height: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    margin-bottom: 20px;
}

.footer-col h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.04em;
    margin-bottom: 20px;
}

.footer-company {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.03em;
    margin-bottom: 6px;
}

.footer-krs {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.05em;
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact a {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-contact a:hover {
    color: var(--gold);
}

.footer-contact a svg {
    flex-shrink: 0;
    opacity: 0.45;
    transition: opacity 0.2s ease;
}

.footer-contact a:hover svg {
    opacity: 1;
}

.footer-address {
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
    margin-bottom: 0;
}

.footer-social-section {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 48px 0;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 28px;
    border-radius: 60px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-decoration: none;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
}

.social-link:hover {
    border-color: var(--gold);
    background: rgba(196, 162, 74, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(196, 162, 74, 0.1);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.ig-link:hover .social-icon {
    background: #e1306c;
    color: #fff;
}
.fb-link:hover .social-icon {
    background: #1877f2;
    color: #fff;
}
.wa-link:hover .social-icon {
    background: #25d366;
    color: #fff;
}

.social-label {
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.social-link:hover .social-label {
    color: rgba(255, 255, 255, 0.85);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 28px 0;
}

.footer-logo-sm {
    width: 80px;
    height: auto;
    filter: brightness(0) invert(1);
    opacity: 0.3;
}

.footer-copy {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.25);
    letter-spacing: 0.06em;
    margin-bottom: 0;
}

/* ==========================================================================
   18. SCROLL REVEAL
   ========================================================================== */

.reveal {
    opacity: 0;
}

.reveal.revealed {
    opacity: 1;
    transform: none;
}

/* ==========================================================================
   19. RESPONSIVE — 1200px
   ========================================================================== */

@media (max-width: 1200px) {
    .hero {
        grid-template-columns: 50% 50%;
    }

    .hero-brand {
        padding: 80px 48px 80px 48px;
    }

    .showcase-inner {
        grid-template-columns: 55% 45%;
    }

    .showcase-text {
        margin-left: -48px;
        padding: 48px 40px;
    }

    .showcase-text::before {
        left: -32px;
        width: 32px;
    }
}

/* ==========================================================================
   20. RESPONSIVE — 1024px
   ========================================================================== */

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

    .model-card {
        flex: 0 0 clamp(200px, 25vw, 260px);
    }
}

/* ==========================================================================
   21. RESPONSIVE — 900px
   ========================================================================== */

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .hero::after {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(
            ellipse at 50% 80%,
            transparent 20%,
            rgba(0, 0, 0, 0.3) 100%
        );
        pointer-events: none;
    }

    .hero-brand {
        grid-column: 1;
        grid-row: 1;
        padding: 60px 40px 80px;
        min-height: auto;
        text-align: center;
        align-items: center;
    }

    .hero-logo {
        margin-bottom: 40px;
    }

    .tagline {
        max-width: 100%;
    }

    .hero-visual {
        grid-column: 1;
        grid-row: 2;
        padding: 0 32px 60px;
    }

    .hero-subtitle {
        max-width: 100%;
        margin-bottom: 0;
        font-size: 1rem;
        font-size: clamp(0.85rem, 2vw, 0.95rem);
        text-align: left;
    }

    .cta-btn {
        align-self: center;
    }

    .showcase-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .showcase-image-wrap {
        max-width: clamp(260px, 50vw, 400px);
        margin: 0 auto;
    }

    .colors {
        padding: 48px 28px;
    }

    .colors-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .showcase-text {
        margin-left: 0;
        padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 48px);
    }

    .app-strip-track img {
        width: 140px;
        height: 140px;
    }

    .app-strip-track {
        gap: 14px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }

    .section-header {
        padding-top: 20px;
        margin-bottom: 60px;
    }

    .features {
        padding: clamp(50px, 10vw, 80px) clamp(20px, 5vw, 32px);
    }

    .showcase {
        padding: 40px 32px 50px;
    }

    .applications {
        padding: 80px 32px;
    }

    .faq {
        padding: 80px 32px;
    }

    .models {
        padding: 80px 32px;
    }

    .showcase::before,
    .faq::before,
    .models::before {
        height: 30px;
    }
}

/* ==========================================================================
   22. RESPONSIVE — 768px
   ========================================================================== */

@media (max-width: 768px) {
    .hero-brand {
        padding: clamp(64px, 12vw, 90px) clamp(16px, 5vw, 24px)
            clamp(40px, 8vw, 64px);
    }

    .hero-logo {
        width: clamp(180px, 32vw, 250px);
    }

    .hero-visual {
        padding: 0 clamp(16px, 5vw, 32px) clamp(32px, 6vw, 60px);
    }

    .hero-subtitle {
        font-size: clamp(0.85rem, 1.8vw, 1rem);
        padding: clamp(12px, 3vw, 20px) clamp(14px, 4vw, 24px);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .feature-card {
        min-height: auto;
        padding: clamp(24px, 5vw, 36px) clamp(18px, 4vw, 28px)
            clamp(20px, 4vw, 32px);
    }

    .feature-icon {
        font-size: clamp(1.5rem, 3.5vw, 2rem);
        margin-bottom: clamp(16px, 3.5vw, 24px);
    }

    .showcase-inner {
        gap: 36px;
    }

    .showcase-image-wrap {
        max-width: clamp(260px, 50vw, 400px);
    }

    .showcase-text {
        padding: clamp(28px, 5vw, 48px) clamp(16px, 4vw, 36px);
    }

    .app-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .app-card {
        padding: 36px 28px;
    }

    .models-grid {
        gap: 20px;
    }
    .model-card {
        flex: 0 0 clamp(160px, 28vw, 220px);
    }

    .model-card-img {
        height: clamp(160px, 28vw, 260px);
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-bottom: 40px;
    }
    .footer-logo {
        width: 130px;
    }
    .footer-social-section {
        gap: 16px;
        padding: 36px 0;
    }
    .social-link {
        padding: 14px 22px;
    }
    .social-label {
        font-size: 0.8rem;
    }

    .section-header {
        padding-top: 80px;
        margin-bottom: 48px;
    }

    .section-header h2 {
        margin-bottom: 24px;
    }

    .section-header .gold-line::before,
    .section-header .gold-line::after {
        width: 64px;
    }

    .features {
        padding: clamp(40px, 10vw, 60px) clamp(16px, 5vw, 24px);
    }

    .showcase {
        padding: 30px 24px 40px;
    }

    .applications {
        padding: 60px 24px;
    }

    .faq {
        padding: 60px 24px;
    }

    .models {
        padding: 60px 24px;
    }

    .faq-q {
        font-size: 0.975rem;
        padding: 22px 0;
    }

    .faq-item.open {
        padding-left: 24px;
        margin-left: -27px;
    }
}

/* ==========================================================================
   23. RESPONSIVE — 600px
   ========================================================================== */

@media (max-width: 600px) {
    .hero-brand {
        padding: 64px 20px 56px;
    }

    .hero-logo {
        width: 200px;
        margin-bottom: 32px;
    }

    .hero-visual {
        padding: 0 20px 48px;
    }

    .hero-subtitle {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .gold-text {
        letter-spacing: 0.1em;
    }

    .cta-btn {
        padding: 14px 32px;
        font-size: 0.75rem;
    }

    .features-grid {
        gap: 16px;
    }

    .feature-card {
        padding: 28px 20px 24px;
    }

    .feature-card h3 {
        font-size: 1.2rem;
    }

    .app-grid {
        gap: 16px;
    }

    .app-card {
        padding: 28px 20px;
    }

    .app-icon {
        font-size: 2.5rem;
        margin-bottom: 20px;
    }

    .models-grid {
        gap: 16px;
    }
    .model-card {
        flex: 0 0 clamp(160px, calc(50% - 10px), 280px);
    }

    .model-card-img {
        height: clamp(140px, 30vw, 200px);
    }

    .model-card-body {
        padding: clamp(16px, 3vw, 24px) clamp(12px, 2.5vw, 20px)
            clamp(20px, 3vw, 28px);
    }

    .model-card-body h3 {
        font-size: clamp(0.9rem, 2.5vw, 1.1rem);
    }

    .showcase-strip .strip-track img {
        height: clamp(75px, 14vw, 130px);
        border-radius: 8px;
    }

    .showcase-strip .strip-track {
        gap: clamp(10px, 2vw, 16px);
    }

    .app-strip-track img {
        width: 100px;
        height: 100px;
        border-radius: 8px;
    }

    .showcase-text {
        padding: clamp(24px, 5vw, 36px) clamp(14px, 3vw, 28px);
    }

    .showcase-text h2 {
        font-size: clamp(1.25rem, 4vw, 1.75rem);
    }

    .faq-item.open {
        padding-left: 16px;
        margin-left: -19px;
    }

    .section-header .gold-line::before,
    .section-header .gold-line::after {
        width: 40px;
    }

    .section-header .gold-line::after {
        left: calc(100% + 10px);
    }

    .section-header .gold-line::before {
        right: calc(100% + 10px);
    }
}

/* ==========================================================================
   23b. RESPONSIVE — 550px
   ========================================================================== */

@media (max-width: 550px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        max-width: 420px;
        margin: 0 auto;
    }

    .feature-card {
        min-height: auto;
    }
}

/* ==========================================================================
   24. RESPONSIVE — 480px
   ========================================================================== */

@media (max-width: 480px) {
    .hero-logo {
        width: clamp(130px, 38vw, 160px);
    }

    .hero-brand {
        padding: clamp(24px, 8vw, 40px) clamp(12px, 4vw, 20px)
            clamp(32px, 10vw, 56px);
    }

    .hero-visual {
        padding: 0 clamp(10px, 4vw, 20px) clamp(24px, 8vw, 48px);
    }

    .hero-subtitle {
        font-size: clamp(0.8rem, 3vw, 0.9rem);
        padding: clamp(10px, 3vw, 20px) clamp(10px, 3vw, 24px);
    }

    .feature-card {
        padding: clamp(18px, 5vw, 24px) clamp(14px, 4vw, 18px)
            clamp(16px, 4vw, 20px);
    }

    .feature-icon {
        font-size: clamp(1.5rem, 5vw, 1.75rem);
        margin-bottom: clamp(14px, 4vw, 18px);
    }

    .feature-card h3 {
        font-size: clamp(1rem, 3vw, 1.1rem);
    }

    .models-grid {
        gap: 14px;
    }
    .model-card {
        flex: 0 0 clamp(150px, calc(50% - 10px), 260px);
    }

    .model-card-body {
        padding: clamp(14px, 3vw, 20px) clamp(10px, 2.5vw, 18px)
            clamp(16px, 3vw, 24px);
    }

    .model-card-body h3 {
        font-size: clamp(0.85rem, 3vw, 1rem);
    }

    .cta-btn {
        padding: 12px 28px;
        font-size: 0.72rem;
    }

    .showcase-strip .strip-track img {
        height: clamp(65px, 18vw, 100px);
    }

    .app-strip-track {
        gap: 10px;
    }
    .app-strip-track img {
        height: 80px;
    }

    .showcase-text {
        padding: clamp(20px, 5vw, 32px) clamp(12px, 3vw, 24px);
    }

    .faq-q {
        font-size: 0.9rem;
        padding: 18px 0;
    }

    .faq-item.open .faq-a {
        max-height: 400px;
    }

    .site-footer {
        padding: 56px 20px 0;
    }
    .social-link {
        padding: 12px 18px;
    }
    .social-label {
        font-size: 0.75rem;
    }
    .social-icon {
        width: 44px;
        height: 44px;
    }
    .social-icon svg {
        width: 22px;
        height: 22px;
    }
    .footer-social-section {
        gap: 12px;
        padding: 32px 0;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
    .back-to-top svg {
        width: 16px;
        height: 16px;
    }
}

/* ==========================================================================
   26. PRINT STYLES
   ========================================================================== */

@media print {
    .hero::after,
    .cta-btn,
    .footer-social-section,
    .app-strip-wrap,
    .gold-text,
    .hero-logo,
    .lightbox {
        display: none !important;
    }

    .hero {
        background: none !important;
        color: #000 !important;
        min-height: auto !important;
        padding: 40px 0 !important;
    }

    body {
        color: #000 !important;
        background: #fff !important;
        font-size: 12pt !important;
        line-height: 1.5 !important;
    }

    .features,
    .showcase,
    .applications,
    .faq,
    .models,
    .site-footer {
        page-break-inside: avoid;
        padding: 20px 0 !important;
        background: #fff !important;
    }

    .feature-card,
    .app-card,
    .model-card {
        break-inside: avoid;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        background: #fff !important;
    }

    a {
        color: #000 !important;
        text-decoration: underline !important;
    }

    .site-footer {
        border-top: 1px solid #000 !important;
        background: #fff !important;
        color: #000 !important;
    }
}