/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0a8f8f;
    --primary-dark: #067070;
    --primary-light: #0cbdbd;
    --accent: #0cbdbd;
    --dark: #0d1117;
    --dark-2: #161b22;
    --gray-900: #1a1f2e;
    --gray-800: #2d333b;
    --gray-700: #3d444d;
    --gray-600: #545d68;
    --gray-500: #768390;
    --gray-400: #8b949e;
    --gray-300: #b1bac4;
    --gray-200: #d0d7de;
    --gray-100: #eaeef2;
    --gray-50: #f6f8fa;
    --white: #ffffff;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.04);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12), 0 16px 48px rgba(0,0,0,0.06);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-grid {
    display: grid;
    gap: 60px;
    align-items: center;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
    color: var(--dark);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; }

.text-accent { color: var(--primary); }

.text-link {
    color: var(--primary);
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}
.text-link:hover { border-bottom-color: var(--primary); }

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    background: rgba(12, 189, 189, 0.08);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-header.centered {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-desc {
    color: var(--gray-500);
    font-size: 1.1rem;
    margin-top: 16px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 143, 143, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
}

.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: 20px 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    z-index: 1001;
}

.logo-img {
    height: 38px;
    width: auto;
    mix-blend-mode: screen;
    filter: invert(1) brightness(2);
}

.navbar.scrolled .logo-img {
    mix-blend-mode: multiply;
    filter: none;
}

.logo-icon {
    color: var(--accent);
    font-size: 1.4rem;
}

.logo-text {
    letter-spacing: 0.05em;
    color: var(--white);
    transition: color var(--transition);
}

.navbar.scrolled .logo-text { color: var(--dark); }

.logo-accent { color: var(--accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-links a:hover {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.navbar.scrolled .nav-links a {
    color: var(--gray-600);
}
.navbar.scrolled .nav-links a:hover {
    color: var(--dark);
    background: var(--gray-50);
}

.nav-cta {
    background: var(--primary) !important;
    color: var(--white) !important;
}
.nav-cta:hover {
    background: var(--primary-dark) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition);
    border-radius: 2px;
}

.navbar.scrolled .nav-toggle span { background: var(--dark); }

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--gray-900) 50%, #0a3d3d 100%);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(13,17,23,0.75) 0%, rgba(13,17,23,0.4) 50%, rgba(13,17,23,0.15) 100%);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(12, 189, 189, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(12, 189, 189, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 80px;
}

.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    border: 1px solid rgba(12, 189, 189, 0.3);
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 32px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--gray-400);
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-700);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    color: rgba(255,255,255,0.5);
    font-size: 1.2rem;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ===== ABOUT ===== */
.about-grid {
    grid-template-columns: 1fr 1fr;
}

.about-lead {
    font-size: 1.15rem;
    color: var(--gray-700);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-lg);
    width: 100%;
    height: 500px;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    border: 2px solid var(--accent);
    border-radius: var(--radius-lg);
    opacity: 0.2;
    z-index: -1;
}

/* About Highlight (Saudi Arabia / Source) */
.about-highlight {
    margin-top: 80px;
    padding: 0;
}

.about-highlight-inner {
    background: linear-gradient(135deg, var(--dark) 0%, #0a3d3d 100%);
    border-radius: var(--radius-lg);
    padding: 56px 64px;
    position: relative;
    overflow: hidden;
}

.about-highlight-inner::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(12, 189, 189, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.about-highlight-inner h3 {
    color: var(--white);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 20px;
    position: relative;
}

.about-highlight-inner p {
    color: var(--gray-300);
    line-height: 1.85;
    margin-bottom: 16px;
    font-size: 1.05rem;
    position: relative;
}

.about-highlight-inner p:last-child {
    margin-bottom: 0;
}

/* About Narrative (Family Legacy) */
.about-narrative {
    margin-top: 80px;
}

.about-narrative-content {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.about-narrative-content h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 24px;
}

.about-narrative-content p {
    color: var(--gray-600);
    line-height: 1.85;
    margin-bottom: 16px;
    font-size: 1.05rem;
}

/* Expansion Section */
.expansion-section {
    margin-top: 100px;
}

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

.expansion-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.expansion-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.expansion-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(12, 189, 189, 0.15);
}

.expansion-flag {
    font-size: 2.4rem;
    margin-bottom: 20px;
    line-height: 1;
}

.expansion-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--dark);
}

.expansion-card p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 14px;
    font-size: 0.98rem;
}

.expansion-card p:last-of-type {
    margin-bottom: 0;
}

.expansion-grid-4 {
    grid-template-columns: repeat(2, 1fr);
}

.expansion-link {
    display: inline-block;
    margin-top: 20px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--primary);
    transition: color var(--transition);
}

.expansion-link:hover {
    color: var(--primary-dark);
}

.expansion-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
    background: var(--primary);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 8px;
}

/* About Vision (Closing Statement) */
.about-vision {
    margin-top: 80px;
    text-align: center;
}

.about-vision blockquote {
    max-width: 900px;
    margin: 0 auto;
    padding: 48px 56px;
    background: rgba(12, 189, 189, 0.04);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    position: relative;
}

.about-vision blockquote p {
    font-size: 1.15rem;
    color: var(--gray-700);
    line-height: 1.85;
    font-style: italic;
    margin: 0;
}

/* Contact Quick Grid (homepage) */
.contact-quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-quick-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}

.contact-quick-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(12, 189, 189, 0.2);
}

.contact-quick-card .contact-icon {
    font-size: 1.4rem;
    color: var(--accent);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(12, 189, 189, 0.08);
    border-radius: 50%;
    margin-bottom: 16px;
}

.contact-quick-card h3 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.contact-quick-card p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.footer-contact-quick {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-contact-quick a {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
}

/* About responsive adjustments */
@media (max-width: 1024px) {
    .expansion-grid { grid-template-columns: 1fr; }
    .about-highlight-inner { padding: 40px 36px; }
}

@media (max-width: 768px) {
    .about-highlight { margin-top: 56px; }
    .about-narrative { margin-top: 56px; }
    .expansion-section { margin-top: 64px; }
    .about-vision { margin-top: 56px; }
    .about-highlight-inner { padding: 32px 24px; }
    .expansion-card { padding: 32px 24px; }
    .about-vision blockquote { padding: 32px 24px; }
    .about-narrative-content { text-align: left; }
}

/* ===== PRODUCTS / THICKNESS ===== */
.products {
    background: var(--gray-50);
}

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

.thickness-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.thickness-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(12, 189, 189, 0.2);
}

.thickness-visual {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-end;
    height: 32px;
}

.glass-bar {
    width: 100%;
    background: linear-gradient(135deg, rgba(12, 189, 189, 0.15), rgba(12, 189, 189, 0.3));
    border-radius: 4px;
    border: 1px solid rgba(12, 189, 189, 0.2);
    min-height: 2px;
}

.thickness-info {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 8px;
}

.thickness-info h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
}

.thickness-imperial {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
}

.thickness-use {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.products-cta {
    text-align: center;
    margin-top: 48px;
    color: var(--gray-500);
    font-size: 1rem;
}

/* ===== APPLICATIONS ===== */
.applications {
    background: var(--dark);
}

.applications .section-tag {
    background: rgba(12, 189, 189, 0.1);
}

.applications h2 {
    color: var(--white);
}

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

.app-card {
    padding: 36px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-700);
    background: var(--dark-2);
    transition: all var(--transition);
}

.app-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.app-icon {
    font-size: 1.6rem;
    color: var(--accent);
    margin-bottom: 16px;
}

.app-card h3 {
    color: var(--white);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.app-card p {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== GALLERY ===== */
.gallery {
    background: var(--gray-50);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 280px;
    grid-auto-flow: dense;
    gap: 16px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #d0e0e0, #e8eded);
}

.about-image img {
    background: linear-gradient(135deg, #d0e0e0, #e8eded);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
}

/* Fill remaining space in last row */
.gallery-item:last-child:nth-child(3n+1) { grid-column: 1 / -1; }
.gallery-item:last-child:nth-child(3n+2) { grid-column: span 2; }

/* ===== CTA BANNER ===== */
.cta-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255,255,255,0.8);
    font-size: 1.15rem;
    margin-bottom: 32px;
}

.cta-banner .btn-primary {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}
.cta-banner .btn-primary:hover {
    background: rgba(255,255,255,0.9);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* ===== CONTACT ===== */
.contact-grid {
    grid-template-columns: 1fr 1.2fr;
}

.contact-info p {
    color: var(--gray-500);
    margin-bottom: 32px;
    line-height: 1.7;
}

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

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.2rem;
    color: var(--accent);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(12, 189, 189, 0.08);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.contact-item a {
    color: var(--dark);
    font-weight: 500;
}
.contact-item a:hover {
    color: var(--primary);
}

.contact-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font);
    font-size: 0.95rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--dark);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(12, 189, 189, 0.1);
}

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

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--gray-800);
}

.footer-brand p {
    color: var(--gray-500);
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-brand .logo-text { color: var(--white); }

.footer-brand .logo-img {
    mix-blend-mode: screen;
    filter: invert(1) brightness(2);
}

.footer-links h4 {
    color: var(--white);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
    color: var(--gray-500);
    font-size: 0.9rem;
    transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

.footer-bottom {
    padding-top: 32px;
    text-align: center;
    color: var(--gray-600);
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .about-image { order: -1; }
    .about-image img { height: 360px; }
    .thickness-grid { grid-template-columns: repeat(2, 1fr); }
    .app-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; }
    .gallery-tall { grid-row: span 2; }
    .gallery-wide { grid-column: span 2; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .section { padding: 72px 0; }

    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed;
        inset: 0;
        background: var(--dark);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 24px;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .nav-links.active { transform: translateX(0); }

    .nav-links a {
        font-size: 1.2rem;
        padding: 16px 24px;
        color: rgba(255,255,255,0.8) !important;
    }
    .nav-links a:hover {
        background: rgba(255,255,255,0.05) !important;
        color: var(--white) !important;
    }

    .hero-stats { gap: 20px; flex-wrap: wrap; }
    .hero-actions .btn { width: 100%; text-align: center; }

    .thickness-grid { grid-template-columns: 1fr; }
    .app-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .contact-quick-grid { grid-template-columns: 1fr; }
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 240px;
    }
    .gallery-tall,
    .gallery-wide {
        grid-row: span 1;
        grid-column: span 1;
    }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .contact-form-wrap { padding: 24px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-badge { font-size: 0.7rem; }
    .stat-number { font-size: 1.4rem; }
    body { padding-bottom: 60px; }
}

/* ===== BOOKING SECTION ===== */
.booking-section {
    position: relative;
    background: var(--dark);
    overflow: hidden;
}

.booking-bg {
    position: absolute;
    inset: 0;
    background: url('images/gallery-7.jpg') center/cover no-repeat;
    opacity: 0.08;
}

.booking-grid {
    grid-template-columns: 1fr 1.1fr;
    position: relative;
    z-index: 2;
}

.booking-info h2 {
    color: var(--white);
}

.booking-info p {
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 28px;
}

.booking-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

.booking-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-300);
    font-size: 0.95rem;
}

.booking-check {
    color: var(--accent);
    font-weight: 700;
    font-size: 1rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(12,189,189,0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.booking-contact-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.booking-quick-link {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color var(--transition);
}

.booking-quick-link:hover {
    color: var(--white);
}

.booking-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.booking-form h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    text-align: center;
}

.booking-form .form-group {
    margin-bottom: 14px;
}

.booking-form input,
.booking-form select,
.booking-form textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font);
    font-size: 0.95rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--dark);
    transition: all var(--transition);
    outline: none;
}

.booking-form input:focus,
.booking-form select:focus,
.booking-form textarea:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(12, 189, 189, 0.1);
}

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

.booking-form .btn {
    margin-top: 8px;
    padding: 16px;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .booking-grid { grid-template-columns: 1fr; }
    .booking-form-wrap { padding: 24px; }
    .booking-contact-row { flex-direction: column; gap: 10px; }
}

/* ===== LIGHTBOX ===== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: lightboxIn 0.3s ease;
}

@keyframes lightboxIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
    z-index: 10;
}

.lightbox-close:hover {
    background: rgba(255,255,255,0.1);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: white;
    font-size: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 10;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.3);
}

/* ===== MOBILE STICKY CTA ===== */
.mobile-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--dark);
    border-top: 1px solid var(--gray-700);
    padding: 10px 16px;
    gap: 10px;
}

.mobile-cta-btn {
    flex: 1;
    text-align: center;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.mobile-cta-phone {
    background: var(--dark-2);
    color: var(--white);
    border: 1px solid var(--gray-700);
}

.mobile-cta-quote {
    background: var(--primary);
    color: var(--white);
}

@media (max-width: 768px) {
    .mobile-cta {
        display: flex;
    }
    body {
        padding-bottom: 64px;
    }
}