/* 
  RubberCraft UK - Professional Design System
  Light/Dark Mode, Premium Corporate UI (Apple/Vercel inspired)
*/

:root {
    /* LIGHT THEME (Default) */
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-glass: rgba(255, 255, 255, 0.75);
    
    --accent-primary: #0284c7; /* Professional Blue */
    --accent-secondary: #0ea5e9;
    --accent-glow: rgba(2, 132, 199, 0.15);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-glow: rgba(2, 132, 199, 0.15);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.08);

    --navbar-bg: rgba(255, 255, 255, 0.85);
    --footer-bg: #f1f5f9;
    
    /* Typography */
    --font-heading: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Manrope', system-ui, sans-serif;
    
    /* Spacing */
    --container-max: 1250px;
    --section-py: 120px;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

[data-theme="dark"] {
    /* DARK THEME */
    --bg-base: #020611;
    --bg-surface: #040b14;
    --bg-surface-glass: rgba(10, 20, 35, 0.6);
    
    --accent-primary: #1eb6ed;
    --accent-secondary: #5fd0f5;
    --accent-glow: rgba(30, 182, 237, 0.25);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(30, 182, 237, 0.2);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.5);

    --navbar-bg: rgba(2, 6, 17, 0.85);
    --footer-bg: #020408;
}

/* Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--text-primary); text-decoration: none; transition: var(--transition-smooth); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.15; margin-bottom: 1rem; color: var(--text-primary); }
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 2rem; }

/* Background Effects */
.bg-effects {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
#oring-canvas {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
}
.mouse-glow {
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    top: -1000px; left: -1000px; /* Hidden initially */
    z-index: -1;
    will-change: transform;
}

/* Ensure main content is clickable and above background */
main, nav, footer {
    position: relative;
    z-index: 10;
}

/* Utilities */
.text-center { text-align: center; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.gradient-text { background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)); -webkit-background-clip: text; background-clip: text; color: transparent; display: inline-block; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.align-center { align-items: center; }
.relative { position: relative; }
.z-10 { z-index: 10; }

/* Buttons & Elements */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.8rem 1.8rem; font-family: var(--font-heading); font-size: 0.95rem;
    font-weight: 600; border-radius: 8px; cursor: pointer; transition: var(--transition-smooth); border: 1px solid transparent;
}
.btn-primary { background: var(--accent-primary); color: #ffffff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-secondary); box-shadow: var(--shadow-md); color: #ffffff; }
.btn-secondary { background: var(--bg-surface); color: var(--text-primary); border-color: var(--border-subtle); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { border-color: var(--text-secondary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--border-subtle); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent-primary); color: var(--accent-primary); }

.glass-card {
    background: var(--bg-surface-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle); border-radius: 16px; padding: 2.5rem; transition: var(--transition-smooth); box-shadow: var(--shadow-sm);
}
.glass-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.badge-tag {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 1rem; border-radius: 999px;
    background: var(--bg-surface); border: 1px solid var(--border-subtle); color: var(--text-secondary);
    font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1.5rem; box-shadow: var(--shadow-sm);
}
.pulse-dot { width: 6px; height: 6px; background-color: var(--accent-primary); border-radius: 50%; }

/* Navigation */
.navbar { position: fixed; top: 0; left: 0; width: 100%; padding: 1.25rem 0; z-index: 100; transition: var(--transition-smooth); }
.navbar.scrolled { padding: 1rem 0; background: var(--navbar-bg); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 0.8rem; }
[data-theme="dark"] .brand img, [data-theme="dark"] .footer-logo { filter: brightness(0) invert(1); }
.brand img { height: 32px; transition: filter 0.3s ease; }
.brand-text { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.accent-text { color: var(--accent-primary); }
.nav-right { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-link { font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.theme-toggle { background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: 8px; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; color: var(--text-secondary); cursor: pointer; transition: var(--transition-smooth); }
.theme-toggle:hover { color: var(--accent-primary); border-color: var(--accent-primary); }

.lang-select {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    outline: none;
    transition: var(--transition-smooth);
    min-width: 60px;
}
.lang-select:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
}
.lang-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px var(--accent-glow);
}
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.8rem; cursor: pointer; }

/* ==========================================================================
   NEW PREMIUM LAYOUTS
   ========================================================================== */

/* Editorial Hero */
.hero-editorial {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}
.hero-bg-accent {
    position: absolute;
    top: -10%; left: -10%; width: 50%; height: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    z-index: -1; pointer-events: none;
}
.hero-image-v2 {
    position: relative;
    width: 100%;
    height: 600px; /* Tall elegant portrait */
    border-radius: 32px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-subtle);
    transform: perspective(1000px) rotateY(-8deg); /* Premium 3D tilt */
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}
.hero-image-v2:hover {
    transform: perspective(1000px) rotateY(0deg);
}
.hero-image-v2 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Cinematic Section (Global Reach) */
.cinematic-section {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: var(--section-py) 0;
}
.cinematic-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}
.cinematic-bg img {
    width: 100%; height: 100%; object-fit: cover;
}
.cinematic-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(2, 6, 17, 0.95) 0%, rgba(2, 6, 17, 0.5) 50%, rgba(2, 6, 17, 0.2) 100%);
}
.cinematic-content {
    position: relative;
    z-index: 10;
}

/* Engineering Partner (Portrait & Overlap) */
.portrait-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
    aspect-ratio: 3/4;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    overflow: visible; /* To allow floating card */
}
.portrait-image-wrapper img {
    width: 100%; height: 100%; object-fit: cover; border-radius: 24px;
}
.floating-glass-card {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 300px;
    animation: float 6s ease-in-out infinite;
}

/* Section titles and components */
.section-title { font-size: clamp(2.2rem, 3.5vw, 3rem); letter-spacing: -0.02em; }
.section-desc { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin-bottom: 2rem; }

.partner-features { list-style: none; display: flex; flex-direction: column; gap: 1.5rem; }
.partner-features li { display: flex; align-items: flex-start; gap: 1.5rem; background: var(--bg-surface); padding: 1.5rem; border-radius: 12px; border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); transition: var(--transition-smooth); }
.partner-features li:hover { transform: translateX(10px); border-color: var(--accent-primary); box-shadow: var(--shadow-md); }
.pf-icon { width: 48px; height: 48px; flex-shrink: 0; background: var(--bg-base); border: 1px solid var(--border-subtle); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent-primary); }
.pf-text strong { display: block; font-family: var(--font-heading); font-size: 1.1rem; color: var(--text-primary); margin-bottom: 0.25rem; }
.pf-text p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.stat-card { padding: 1.5rem 0; border-top: 1px solid var(--border-subtle); }
.stat-number { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; color: var(--text-primary); line-height: 1; margin-bottom: 0.5rem; }
.stat-label { color: var(--text-muted); font-size: 0.9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

/* Cards (Capabilities, Materials) */
.capability-card { display: flex; flex-direction: column; background: var(--bg-surface); overflow: hidden; }

/* Organic Chemical Animation for Material Cards */
.material-card {
    display: flex;
    flex-direction: column;
    padding: 2.5rem;
    border-radius: 16px;
    background: var(--bg-surface);
    position: relative;
    z-index: 1;
    border: 1px solid var(--border-subtle);
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.5s ease, border-color 0.5s ease;
    overflow: hidden;
}

/* Hexagonal Molecule Mesh */
.material-card::before {
    content: '';
    position: absolute;
    inset: 0;
    /* Hexagon pattern */
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='69' viewBox='0 0 40 69' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 0L40 11.5v23L20 46 0 34.5v-23L20 0zm0 4.6L4 13.8v18.4l16 9.2 16-9.2V13.8L20 4.6z' fill='%230284c7' fill-opacity='0.15' fill-rule='evenodd'/%3E%3C/svg%3E");
    background-size: 40px 69px;
    z-index: -2;
    opacity: 0.15;
    transition: opacity 0.5s ease;
}

/* Chemical Liquid Pulse Gradient */
.material-card::after {
    content: '';
    position: absolute;
    bottom: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 50%);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.5s ease;
    transform: translateY(50%) scale(0.8);
    pointer-events: none;
}

.material-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px var(--accent-glow);
    border-color: var(--accent-primary);
}

.material-card:hover::before {
    opacity: 1;
    animation: molecule-drift 15s linear infinite;
}

.material-card:hover::after {
    opacity: 1;
    animation: chemical-pulse 4s ease-in-out infinite alternate;
}

@keyframes molecule-drift {
    0% { background-position: 0 0; }
    100% { background-position: 40px 69px; }
}

@keyframes chemical-pulse {
    0% { transform: translateY(20%) scale(1); filter: hue-rotate(0deg); }
    100% { transform: translateY(-10%) scale(1.4); filter: hue-rotate(30deg); }
}

.capability-card { padding: 0; gap: 0; }
.cap-img { width: 100%; height: 180px; overflow: hidden; border-bottom: 1px solid var(--border-subtle); position: relative; }
.cap-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.capability-card:hover .cap-img img { transform: scale(1.08); }
.cap-content { padding: 2rem; display: flex; flex-direction: column; gap: 1rem; flex: 1; position: relative; }
.card-icon { width: 48px; height: 48px; background: var(--bg-base); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent-primary); border: 1px solid var(--border-subtle); transition: var(--transition-smooth); margin-top: -3.5rem; position: relative; z-index: 2; box-shadow: var(--shadow-sm); }
.capability-card:hover .card-icon { background: var(--accent-primary); color: #ffffff; transform: scale(1.05); box-shadow: var(--shadow-md); }

/* Material Card Inner Content */
.mat-title, .mat-specs, .material-card p { position: relative; z-index: 2; }
.mat-title { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: var(--text-primary); display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.5rem; transition: var(--transition-smooth); }
.material-card:hover .mat-title { color: var(--accent-primary); }
.mat-sub { font-size: 1rem; color: var(--text-muted); font-weight: 500; }
.mat-specs { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 0.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border-subtle); }
.mat-specs li { display: flex; align-items: center; gap: 0.5rem; color: var(--text-secondary); font-size: 0.9rem; font-weight: 600; }
.mat-specs i { color: var(--accent-primary); font-size: 1.2rem; filter: drop-shadow(0 0 5px var(--accent-glow)); }
.material-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.5; margin:0; }

/* Sectors Grid */
.sectors { padding: var(--section-py) 0; background: var(--bg-surface); border-top: 1px solid var(--border-subtle); }
.sectors-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.sector-card { position: relative; height: 260px; border-radius: 16px; overflow: hidden; display: flex; align-items: flex-end; padding: 2rem; border: 1px solid var(--border-subtle); transition: var(--transition-smooth); background: #000; }
.sector-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1); z-index: 0; opacity: 0.7; }
.sector-content { position: relative; z-index: 1; width: 100%; display: flex; flex-direction: column; gap: 0.5rem; }
.sector-icon { font-size: 2rem; color: #ffffff; margin-bottom: 0.5rem; transition: var(--transition-smooth); }
.sector-card h3 { font-size: 1.5rem; margin: 0; color: #ffffff; transition: var(--transition-smooth); }
.sector-arrow { position: absolute; top: 1.5rem; right: 1.5rem; width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.2); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; color: #fff; opacity: 0; transform: translate(-10px, 10px); transition: var(--transition-smooth); }
.sector-card:hover { border-color: var(--accent-primary); box-shadow: var(--shadow-md); }
.sector-card:hover .sector-bg { transform: scale(1.05); opacity: 0.5; }
.sector-card:hover .sector-arrow { opacity: 1; transform: translate(0, 0); background: var(--accent-primary); }
.sector-card:hover .sector-icon { color: var(--accent-secondary); }

/* CTA */
.cta-box { display: flex; gap: 4rem; align-items: center; padding: 4rem; background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: 20px; box-shadow: var(--shadow-md); }
.cta-content { flex: 1; }
.cta-content h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.cta-content p { color: var(--text-secondary); font-size: 1.1rem; }
.professional-form .input-group { display: flex; gap: 0.5rem; margin-top: 1.5rem; }
.professional-form input { flex: 1; background: var(--bg-base); border: 1px solid var(--border-subtle); padding: 0.8rem 1.2rem; border-radius: 8px; color: var(--text-primary); font-family: var(--font-body); font-size: 1rem; outline: none; transition: var(--transition-smooth); }
.professional-form input:focus { border-color: var(--accent-primary); box-shadow: 0 0 0 3px var(--accent-glow); }
.cta-visual { flex: 0 0 300px; }
.certification-badges { display: flex; flex-direction: column; gap: 1rem; }
.cert-badge { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.5rem; background: var(--bg-base); border: 1px solid var(--border-subtle); border-radius: 8px; font-family: var(--font-heading); font-weight: 600; color: var(--text-primary); box-shadow: var(--shadow-sm); }
.cert-badge i { font-size: 1.5rem; color: var(--accent-primary); }

/* Footer */
.footer { border-top: 1px solid var(--border-subtle); background: var(--footer-bg); padding-top: 5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 4rem; margin-bottom: 4rem; }
.footer-logo { height: 36px; transition: filter 0.3s ease; }
.footer-brand p { color: var(--text-secondary); font-size: 0.95rem; max-width: 300px; }
.footer-links h4, .footer-contact h4 { font-size: 1.1rem; margin-bottom: 1.5rem; color: var(--text-primary); }
.footer-links ul, .footer-contact ul { list-style: none; display: flex; flex-direction: column; gap: 0.8rem; }
.footer-links a, .footer-contact li { color: var(--text-secondary); font-size: 0.95rem; }
.footer-links a:hover { color: var(--accent-primary); }
.footer-contact li { display: flex; align-items: flex-start; gap: 0.8rem; }
.footer-contact i { color: var(--accent-primary); font-size: 1.2rem; margin-top: 2px; }
.social-links { display: flex; gap: 1rem; }
.social-links a { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 8px; background: var(--bg-surface); border: 1px solid var(--border-subtle); color: var(--text-secondary); font-size: 1.2rem; }
.social-links a:hover { background: var(--accent-primary); border-color: var(--accent-primary); color: #fff; transform: translateY(-2px); }
.footer-bottom { padding: 2rem 0; border-top: 1px solid var(--border-subtle); display: flex; justify-content: space-between; align-items: center; color: var(--text-muted); font-size: 0.9rem; }
.footer-legal { display: flex; gap: 2rem; }
.footer-legal a { color: var(--text-muted); }
.footer-legal a:hover { color: var(--text-primary); }

/* Scroll Animations */
.reveal { opacity: 0; transform: translateY(20px); transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* Responsive */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .hero-editorial { padding-top: 120px; }
    .hero-editorial .grid-2 { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .hero-editorial h1 { font-size: 3rem !important; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; flex-wrap: wrap; }
    .hero-image-v2 { height: 400px; transform: none; }
    .hero-image-v2:hover { transform: none; }
    .cinematic-content .grid-2 { grid-template-columns: 1fr; text-align: center; }
    .cinematic-content p { margin-left: auto; margin-right: auto; }
    .engineering-partner .grid-2 { grid-template-columns: 1fr; gap: 4rem; text-align: center; }
    .engineering-partner .reveal { padding-left: 0 !important; }
    .portrait-image-wrapper { margin: 0 auto; max-width: 100%; }
    .cta-box { flex-direction: column; text-align: center; padding: 3rem 2rem; }
    .certification-badges { flex-direction: row; flex-wrap: wrap; justify-content: center; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .seo-expertise-section .grid-2 { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 768px) {
    /* Base & Layout */
    .container { padding: 0 1.5rem; }
    section[style*="padding: 100px"], section[style*="padding: 120px"] { padding: 60px 0 !important; }
    .grid-4, .grid-2, .sectors-grid { grid-template-columns: 1fr !important; }
    
    /* Typography */
    h1 { font-size: 2.5rem !important; }
    h2.section-title { font-size: 2rem !important; }
    p.hero-desc, p.section-desc { font-size: 1.05rem !important; padding: 0; }
    
    /* Navigation */
    .nav-right { gap: 1rem; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 85%; max-width: 300px; height: 100vh; background: var(--bg-surface); backdrop-filter: blur(20px); flex-direction: column; justify-content: center; transition: var(--transition-smooth); border-left: 1px solid var(--border-subtle); box-shadow: var(--shadow-lg); z-index: 100; }
    .nav-links.active { right: 0; }
    .mobile-menu-btn { display: block; z-index: 101; }
    
    /* Hero & Visuals */
    .hero-image-v2 { height: 280px; }
    .portrait-image-wrapper { height: 350px; }
    .floating-glass-card { right: 5%; bottom: -20px; width: 90%; }
    
    /* Cards & Stats */
    .stats-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .partner-features li { flex-direction: column; gap: 1rem; text-align: center; align-items: center; }
    .material-card { padding: 1.5rem; }
    .cap-img { height: 160px; }
    .sector-card { height: 220px; }
    
    /* CTA Actions */
    .cta-box { padding: 2rem 1.2rem; }
    .cta-actions > div { flex-direction: column; gap: 0.8rem; }
    .cta-actions a { width: 100% !important; font-size: 1rem !important; padding: 0.8rem !important; }
    .certification-badges { flex-direction: column; width: 100%; }
    .cert-badge { justify-content: center; }
    
    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; text-align: center; }
    .footer-brand p { margin: 1rem auto 0; }
    .footer-contact li { justify-content: center; }
    .social-links { justify-content: center; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}