/* ============================================
   NorN AI — Official Website Stylesheet
   Brand Color: #1565a0 (extracted from logo)
   ============================================ */

:root {
    --brand: #1565a0;
    --brand-light: #2a85c5;
    --brand-dark: #0d4a78;
    --brand-glow: rgba(21, 101, 160, 0.3);
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.2);
    --bg: #0a0e17;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --surface: #1a2332;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --white: #ffffff;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--brand-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-light));
    color: var(--white);
    box-shadow: 0 4px 20px var(--brand-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(21, 101, 160, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-hover);
}
.btn-outline:hover {
    border-color: var(--brand-light);
    color: var(--brand-light);
    background: rgba(21, 101, 160, 0.08);
}

.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* ============ NAVBAR ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 140px;
    width: auto;
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}
.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-light);
    transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions { display: flex; align-items: center; gap: 16px; }

.nav-cta {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--brand), var(--brand-light));
    color: var(--white);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}
.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--brand-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
    border-radius: 2px;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
    margin-left: 8px;
}
.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-hover);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.lang-btn:hover {
    border-color: var(--brand-light);
    color: var(--white);
    background: rgba(21, 101, 160, 0.1);
}
.lang-btn svg { width: 14px; height: 14px; }
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 180px;
    background: var(--bg-card);
    border: 1px solid var(--border-hover);
    border-radius: 12px;
    padding: 8px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    z-index: 1001;
}
.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: none;
    width: 100%;
    font-family: inherit;
    text-align: left;
}
.lang-option:hover {
    background: rgba(21, 101, 160, 0.1);
    color: var(--white);
}
.lang-option.active {
    color: var(--brand-light);
    font-weight: 600;
}
.lang-flag {
    font-size: 1.1rem;
    line-height: 1;
}

/* ============ HERO ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
    max-width: 1240px;
    margin: 0 auto;
    gap: 60px;
}

.hero-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--brand-glow), transparent 70%);
    filter: blur(80px);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
    flex: 1;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: rgba(21, 101, 160, 0.12);
    border: 1px solid rgba(21, 101, 160, 0.3);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--brand-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 28px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}
.hero-title-line { display: block; }

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}
.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    display: inline;
}
.stat-suffix {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--brand-light);
    line-height: 1;
    display: inline;
}
.stat-value-row {
    white-space: nowrap;
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

/* Hero Carousel */
.hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.92);
    filter: blur(8px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                filter 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}
.hero-slide.active {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
    pointer-events: auto;
}
.hero-slide .hero-image-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.hero-slide .hero-image {
    max-height: 560px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
}
/* Hero Carousel Wrap */
.hero-carousel-wrap {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 620px;
}
.hero-carousel {
    position: relative;
    flex: 1;
    height: 600px;
}
.hero-arrow {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-hover);
    background: rgba(255,255,255,0.04);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    z-index: 5;
}
.hero-arrow:hover {
    border-color: var(--brand-light);
    color: var(--brand-light);
    background: rgba(21, 101, 160, 0.12);
    transform: scale(1.1);
}
.hero-arrow svg {
    width: 18px;
    height: 18px;
}
.hero-dots {
    display: none;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}
.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-dim);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}
.hero-dot.active {
    background: var(--brand-light);
    box-shadow: 0 0 10px var(--brand-glow);
    transform: scale(1.3);
}

.hero-image-wrapper {
    position: relative;
}
.hero-image {
    filter: drop-shadow(0 20px 60px rgba(0,0,0,0.5));
    animation: float 6s ease-in-out infinite;
}
.hero-image-glow {
    position: absolute;
    bottom: -20%;
    left: 10%;
    right: 10%;
    height: 60%;
    background: radial-gradient(ellipse, var(--brand-glow), transparent 70%);
    filter: blur(40px);
    z-index: -1;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-16px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-dim);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--brand-light), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
    0% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.5); }
    100% { opacity: 1; transform: scaleY(1); }
}

/* ============ SECTIONS ============ */
.section-header {
    text-align: center;
    margin-bottom: 72px;
}
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(21, 101, 160, 0.1);
    border: 1px solid rgba(21, 101, 160, 0.2);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--brand-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 20px;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}
.section-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-top: 16px;
}

/* ============ ABOUT ============ */
.about {
    padding: 120px 0;
    position: relative;
}

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

.about-content {
    padding-right: 20px;
}
.about-lead {
    font-size: 1.15rem;
    color: var(--text);
    margin-bottom: 20px;
    font-weight: 500;
    line-height: 1.8;
}
.about-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}
.feature-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(21, 101, 160, 0.12);
    border-radius: 12px;
    margin-bottom: 16px;
    color: var(--brand-light);
}
.feature-icon svg { width: 22px; height: 22px; }

.feature-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}
.feature-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ============ PRODUCTS ============ */
.products {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg), #0d1220, var(--bg));
}

.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 80px;
}
.product-showcase.product-reverse {
    direction: rtl;
}
.product-showcase.product-reverse > * {
    direction: ltr;
}

/* Product Color Display (Starway) */
.product-color-display {
    position: relative;
    width: 100%;
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-color-img {
    position: absolute;
    max-height: 460px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    opacity: 0;
    transform: scale(0.92);
    filter: blur(6px);
    transition: opacity 0.6s cubic-bezier(0.4,0,0.2,1),
                transform 0.6s cubic-bezier(0.4,0,0.2,1),
                filter 0.6s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
}
.product-color-img.active {
    opacity: 1;
    transform: scale(1);
    filter: blur(0) drop-shadow(0 20px 50px rgba(0,0,0,0.4));
    pointer-events: auto;
}

.product-image-stack {
    position: relative;
    width: 100%;
    aspect-ratio: 4/5;
}
.product-img {
    position: absolute;
    border-radius: var(--radius);
    object-fit: contain;
    transition: var(--transition);
}
.product-img-front {
    width: 80%;
    height: 90%;
    bottom: 0;
    left: 0;
    z-index: 2;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
}
.product-img-back {
    width: 65%;
    height: 75%;
    top: 0;
    right: 0;
    z-index: 1;
    opacity: 0.7;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3));
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
    padding: 8px;
}
.product-img-solo {
    position: absolute;
    width: 90%;
    height: 90%;
    top: 5%;
    left: 5%;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
    transition: var(--transition);
    border-radius: var(--radius);
}
.product-showcase:hover .product-img-solo {
    transform: scale(1.03);
}
.product-showcase:hover .product-img-front {
    transform: translate(-4px, -4px);
}
.product-showcase:hover .product-img-back {
    transform: translate(4px, 4px);
    opacity: 0.85;
}

.product-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.product-name {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.product-tagline {
    font-size: 1.1rem;
    color: var(--brand-light);
    font-weight: 500;
    margin-bottom: 20px;
}

.product-desc {
    color: var(--text-muted);
    margin-bottom: 28px;
    line-height: 1.8;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
}
.product-features li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.pf-icon {
    color: var(--brand-light);
    font-size: 0.5rem;
    margin-top: 8px;
    flex-shrink: 0;
}
.product-features strong {
    display: block;
    color: var(--white);
    font-size: 0.92rem;
    margin-bottom: 2px;
}
.product-features span {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.product-colors {
    display: flex;
    align-items: center;
    gap: 16px;
}
.color-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.color-swatches {
    display: flex;
    gap: 8px;
}
.swatch {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
}
.swatch:hover {
    transform: scale(1.2);
    border-color: var(--white);
}
.swatch.active {
    border-color: var(--brand-light);
    transform: scale(1.2);
    box-shadow: 0 0 10px var(--brand-glow);
}

.product-metrics {
    display: flex;
    gap: 32px;
    padding-top: 8px;
}
.metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.metric-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
}
.metric-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 4px;
}

/* Color Variants Switcher */
.variants-section {
    margin: 0 0 100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 48px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.variants-display {
    position: relative;
    height: auto;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.variant-img {
    position: absolute;
    max-height: 380px;
    object-fit: contain;
    opacity: 0;
    transform: scale(0.9);
    filter: blur(6px);
    transition: opacity 0.6s cubic-bezier(0.4,0,0.2,1),
                transform 0.6s cubic-bezier(0.4,0,0.2,1),
                filter 0.6s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
}
.variant-img.active {
    opacity: 1;
    transform: scale(1);
    filter: blur(0) drop-shadow(0 20px 40px rgba(0,0,0,0.4));
    pointer-events: auto;
}
.variants-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 28px;
}
.variant-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.variant-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    transition: var(--transition);
}
.variant-btn:hover {
    border-color: var(--border-hover);
    background: rgba(255,255,255,0.03);
    color: var(--text);
}
.variant-btn.active {
    border-color: var(--brand-light);
    background: rgba(21, 101, 160, 0.08);
    color: var(--white);
}
.variant-swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--swatch-color);
    border: 2px solid rgba(255,255,255,0.15);
    flex-shrink: 0;
    transition: var(--transition);
}
.variant-btn.active .variant-swatch {
    border-color: var(--white);
    transform: scale(1.15);
    box-shadow: 0 0 12px rgba(255,255,255,0.2);
}

/* Analysis Banner */
.analysis-banner {
    margin-top: 60px;
}
.analysis-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}
.analysis-img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
}
.analysis-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px;
    background: linear-gradient(to top, rgba(10, 14, 23, 0.95), transparent);
}
.analysis-overlay h4 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 8px;
}
.analysis-overlay p {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 700px;
}

/* ============ CREDENTIALS ============ */
.credentials {
    padding: 60px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.cred-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 32px;
}
.cred-item {
    text-align: center;
}
.cred-value {
    font-size: 2.4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--brand-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    margin-bottom: 6px;
}
.cred-label {
    font-size: 0.82rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.cred-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}
.cred-badge {
    padding: 8px 18px;
    background: rgba(21, 101, 160, 0.08);
    border: 1px solid rgba(21, 101, 160, 0.2);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--brand-light);
    letter-spacing: 0.04em;
}

/* ============ TECHNOLOGY ============ */
.technology {
    padding: 120px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tech-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--brand-light), transparent);
    opacity: 0;
    transition: var(--transition);
}
.tech-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}
.tech-card:hover::before { opacity: 1; }

.tech-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(21, 101, 160, 0.15);
    line-height: 1;
    margin-bottom: 16px;
}

.tech-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}
.tech-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============ CTA ============ */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--brand-dark), var(--brand));
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
    filter: blur(60px);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}
.cta-content h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}
.cta-content p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 32px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.cta-content .btn-primary {
    background: var(--white);
    color: var(--brand-dark);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.cta-content .btn-primary:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

/* ============ CONTACT ============ */
.contact {
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 64px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(21, 101, 160, 0.1);
    border: 1px solid rgba(21, 101, 160, 0.2);
    border-radius: 12px;
    color: var(--brand-light);
}
.contact-icon svg { width: 22px; height: 22px; }

.contact-item h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}
.contact-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--brand-light);
    box-shadow: 0 0 0 3px var(--brand-glow);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-dim);
}
.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}
.form-group select option {
    background: var(--bg-card);
}

textarea { resize: vertical; min-height: 120px; }

/* ============ FOOTER ============ */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    height: 56px;
    width: auto;
    filter: brightness(0) invert(1);
    margin-bottom: 16px;
}
.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-links a:hover { color: var(--brand-light); }

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ============ ANIMATIONS ============ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .hero { flex-direction: column; text-align: center; padding-top: 100px; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { flex: none; width: 100%; }
    .hero-image-wrapper { max-width: 360px; }
    .nav-logo img { height: 80px; }

    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .about-content { padding-right: 0; }

    .product-showcase { grid-template-columns: 1fr; gap: 48px; }
    .product-showcase.product-reverse { direction: ltr; }
    .product-image-stack { max-width: 400px; margin: 0 auto; }
    .product-color-display { min-height: 360px; }
    .product-color-img.active { max-height: 340px; }
    .cred-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

    .tech-grid { grid-template-columns: repeat(2, 1fr); }

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

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

    .hero-carousel-wrap { max-width: 480px; margin: 0 auto; }

    .variants-section { grid-template-columns: 1fr; }
    .variants-display { height: 320px; }
    .variant-buttons { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 768px) {
    /* --- Navbar mobile --- */
    .nav-logo img { height: 60px; }
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .nav-toggle { display: flex; }
    .navbar { padding: 10px 0; }
    .navbar.scrolled { padding: 6px 0; }

    /* Language switcher stays visible on mobile, moves before hamburger */
    .lang-switcher { margin-left: 0; margin-right: 4px; }
    .lang-btn { padding: 6px 10px; font-size: 0.75rem; }
    .lang-btn svg { width: 12px; height: 12px; }
    .lang-dropdown { min-width: 160px; right: -40px; }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 20px 24px 28px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active a {
        display: block;
        padding: 14px 16px;
        font-size: 1rem;
        border-radius: var(--radius-xs);
        color: var(--text);
    }
    .nav-links.active a:hover,
    .nav-links.active a.active {
        background: rgba(21, 101, 160, 0.1);
    }

    /* --- Hero mobile --- */
    .hero { padding: 90px 20px 50px; gap: 36px; min-height: auto; }
    .hero-badge { font-size: 0.7rem; padding: 6px 14px; margin-bottom: 20px; }
    .hero-subtitle { font-size: 0.95rem; margin-bottom: 28px; }
    .hero-actions { gap: 12px; margin-bottom: 36px; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }
    .stat-number, .stat-suffix { font-size: 1.8rem; }
    .stat-label { font-size: 0.7rem; }

    .hero-carousel-wrap { max-width: 100%; }
    .hero-carousel { height: 320px; }
    .hero-slide .hero-image { max-height: 300px; }
    .hero-arrow { width: 32px; height: 32px; }
    .hero-arrow svg { width: 14px; height: 14px; }

    .scroll-indicator { display: none; }

    /* --- Sections spacing mobile --- */
    .about { padding: 72px 0; }
    .products { padding: 72px 0; }
    .technology { padding: 72px 0; }
    .contact { padding: 72px 0; }
    .cta-section { padding: 64px 0; }
    .section-header { margin-bottom: 48px; }
    .section-desc { font-size: 0.95rem; }

    /* --- About mobile --- */
    .about-features { grid-template-columns: 1fr; }
    .feature-card { padding: 22px; }
    .about-lead { font-size: 1rem; }
    .about-content p { font-size: 0.9rem; }

    /* --- Credentials mobile --- */
    .credentials { padding: 40px 0; }
    .cred-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .cred-value { font-size: 1.8rem; }
    .cred-label { font-size: 0.72rem; }
    .cred-badges { gap: 8px; }
    .cred-badge { padding: 6px 12px; font-size: 0.7rem; }

    /* --- Products mobile --- */
    .product-showcase { gap: 32px; margin-bottom: 64px; }
    .product-color-display { min-height: 280px; }
    .product-color-img.active { max-height: 260px; }
    .product-image-stack { aspect-ratio: 1/1; }
    .product-name { font-size: 1.8rem; }
    .product-tagline { font-size: 0.95rem; margin-bottom: 14px; }
    .product-desc { font-size: 0.9rem; margin-bottom: 20px; }
    .product-features { gap: 14px; margin-bottom: 20px; }
    .product-features strong { font-size: 0.88rem; }
    .product-features span { font-size: 0.82rem; }
    .product-colors { flex-direction: column; align-items: flex-start; gap: 10px; }
    .swatch { width: 32px; height: 32px; }

    .product-metrics { flex-wrap: wrap; gap: 12px; }
    .metric { flex: 1; min-width: 80px; padding: 12px 16px; }
    .metric-value { font-size: 1.5rem; }

    /* --- Tech mobile --- */
    .tech-grid { grid-template-columns: 1fr; }
    .tech-card { padding: 24px; }
    .tech-number { font-size: 2.2rem; margin-bottom: 10px; }
    .tech-card h3 { font-size: 1.05rem; }
    .tech-card p { font-size: 0.85rem; }

    /* --- CTA mobile --- */
    .cta-content p { font-size: 0.95rem; }

    /* --- Contact mobile --- */
    .form-row { grid-template-columns: 1fr; }
    .form-group input,
    .form-group select,
    .form-group textarea { padding: 12px 14px; font-size: 16px; /* prevent iOS zoom */ }
    .contact-icon { width: 42px; height: 42px; }
    .contact-icon svg { width: 20px; height: 20px; }

    /* --- Footer mobile --- */
    .footer { padding: 48px 0 28px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-logo { height: 44px; }
    .footer-brand p { max-width: 100%; }
    .footer-bottom p { font-size: 0.7rem; line-height: 1.5; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 0.88rem; }
    .hero-carousel { height: 260px; }
    .hero-slide .hero-image { max-height: 240px; }
    .hero-stats { gap: 16px; }
    .stat-number, .stat-suffix { font-size: 1.5rem; }

    .product-name { font-size: 1.5rem; }
    .product-color-display { min-height: 220px; }
    .product-color-img.active { max-height: 200px; }

    .btn { padding: 12px 24px; font-size: 0.9rem; }
    .btn-lg { padding: 14px 28px; font-size: 0.95rem; }

    .cred-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .cred-value { font-size: 1.5rem; }
    .cred-badges { justify-content: flex-start; }

    .section-header { margin-bottom: 36px; }
    .section-tag { font-size: 0.7rem; padding: 5px 12px; }

    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-brand { grid-column: auto; }

    .container { padding: 0 16px; }

    .lang-dropdown { right: -20px; }
}

@media (max-width: 360px) {
    .hero { padding: 80px 14px 40px; }
    .hero-title { font-size: 1.6rem; }
    .hero-carousel { height: 220px; }
    .hero-slide .hero-image { max-height: 200px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .cred-grid { grid-template-columns: 1fr; }
    .container { padding: 0 12px; }
}