/* =========================================
           1. CORE VARIABLES & RESET
           ========================================= */
        :root {
            /* Palette: Elegant Pastels & Stark Contrasts */
            --bg-body: #FAFAF9;       /* Warm Alabaster */
            --bg-card: #FFFFFF;
            --bg-dark: #0f1115;       /* Rich Black */
            
            --color-text-main: #1C1917;
            --color-text-muted: #57534E;
            --color-text-light: #F3F4F6;
            
            /* Accents */
            --accent-sage: #D1FAE5;
            --accent-lavender: #E0E7FF;
            --accent-peach: #FFEDD5;
            --accent-slate: #94A3B8;
            
            --primary-btn: #1C1917;
            
            /* Spacing & Layout */
            --spacing-section: clamp(80px, 10vh, 140px);
            --container-width: 1280px;
            --radius-lg: 16px;
            --radius-sm: 8px;
            
            /* Animation */
            --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
            --transition-smooth: all 0.5s var(--ease-out);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        html { scroll-behavior: smooth; font-size: 16px; }
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-body);
            color: var(--color-text-main);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4, h5 {
            color: var(--color-text-main);
            font-weight: 700;
            line-height: 1.15;
            margin-bottom: 1.25rem;
            letter-spacing: -0.03em;
        }

        h1 { font-size: clamp(3rem, 6vw, 5rem); }
        h2 { font-size: clamp(2.25rem, 4vw, 3.5rem); }
        h3 { font-size: 1.5rem; font-weight: 600; }

        p {
            margin-bottom: 1.5rem;
            color: var(--color-text-muted);
            font-size: 1.125rem;
            max-width: 65ch;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition-smooth); }
        ul { list-style: none; }
        img { display: block; max-width: 100%; }

        /* =========================================
           2. UTILITIES & COMPONENTS
           ========================================= */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--color-text-muted);
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--accent-slate);
            padding-bottom: 4px;
        }

        .dark-mode .eyebrow { color: var(--accent-slate); border-color: #374151; }

        .btn {
            display: inline-block;
            background-color: var(--primary-btn);
            color: white;
            padding: 16px 36px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid var(--primary-btn);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .btn:hover {
            background-color: transparent;
            color: var(--primary-btn);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        /* Reveal Animations */
        .reveal-up {
            opacity: 0;
            transform: translateY(60px);
            transition: opacity 1s ease, transform 1.2s var(--ease-out);
        }

        .reveal-up.active {
            opacity: 1;
            transform: translateY(0);
        }

        .delay-100 { transition-delay: 0.1s; }
        .delay-200 { transition-delay: 0.2s; }
        .delay-300 { transition-delay: 0.3s; }

        /* =========================================
           3. HEADER (SearchRNK Custom)
           ========================================= */
        #rnk-header {
            position: fixed; 
            top: 20px; 
            left: 50%; 
            transform: translateX(-50%);
            width: 90%; 
            max-width: 1320px; 
            z-index: 1000;
            background: rgba(255,255,255,0.7);
            backdrop-filter: blur(16px); 
            -webkit-backdrop-filter: blur(16px);
            padding: 16px 32px; 
            border-radius: 100px;
            border: 1px solid rgba(255,255,255,0.4);
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            display: flex; 
            justify-content: space-between; 
            align-items: center;
            font-family: 'Inter', sans-serif; 
            transition: all 0.4s ease;
        }

        #rnk-nav {
            display: flex; 
            gap: 40px; 
            align-items: center; 
            position: static; 
            flex-direction: row; 
            height: auto;
        }

        .rnk-link {
            font-size: 0.95rem; 
            font-weight: 500; 
            opacity: 0.8; 
            color: #1C1917; 
            text-decoration: none;
        }
        
        .rnk-link:hover { opacity: 1; }

        .rnk-cta-btn {
            padding: 10px 20px; 
            border-radius: 100px; 
            background: #1C1917; 
            color: white;
            font-weight: 600; 
            border: 1px solid #1C1917; 
            text-decoration: none;
        }

        /* =========================================
           4. HERO SECTION (Scoped #searchrnk-module)
           ========================================= */
        #searchrnk-module {
            --bg-dark: #0b0c10;
            --text: #0f1720;
            --light: #f8fafc;
            --accent-1: #7c3aed; /* vivid purple */
            --accent-2: #06b6d4; /* teal */
            --accent-3: #ffd166; /* warm gold */
            --accent-4: #a78bfa; /* pastel lavender */
            --radius-lg: 18px;
            --ease: cubic-bezier(.16, .8, .29, 1);
            
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--text);
            /* Background for this specific section */
            background: linear-gradient(180deg, #0b0c10 0%, rgba(11, 12, 16, 0.95) 100%);
            min-height: 100vh;
            box-sizing: border-box;
        }

        .rnk-container { max-width: 1200px; margin: 0 auto; padding: 0 22px; }

        /* Hero Layout */
        .rnk-hero {
            padding: 160px 0 100px;
            min-height: 90vh;
            background-color: black;
            display: flex; align-items: center; position: relative; overflow: visible;
        }
        .rnk-hero-grid {
            display: grid; grid-template-columns: 1fr 520px; gap: 48px; align-items: center;
            max-width: 1400px; margin: 0 auto;
        }

        /* Hero Text */
        .rnk-hero-left { color: var(--light); z-index: 2; }
        
        .rnk-eyebrow {
            font-size: 16px; font-weight: 700; text-transform: uppercase;
            color: var(--accent-4); letter-spacing: 0.12em; background: rgba(255, 255, 255, 0.03);
            display: inline-block; padding: 8px 12px; border-radius: 999px; margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.04);
            background-color: grey;
        }
        .rnk-hero h1 {
            font-size: clamp(36px, 5.5vw, 64px); line-height: 1.05; margin: 0 0 18px;
            color: #fff; text-shadow: 0 18px 60px rgba(0, 0, 0, 0.6);
        }
        .rnk-lead {
            color: rgba(255, 255, 255, 0.85); font-size: 18px; max-width: 70ch; margin-bottom: 24px;
        }
        .rnk-hero-ctas { margin-top: 32px; display: flex; gap: 16px; align-items: center; }

        /* Hero Buttons */
        .rnk-btn-primary {
            background: linear-gradient(90deg, var(--accent-2), var(--accent-1));
            color: white; padding: 14px 26px; border-radius: 999px; border: none;
            font-weight: 700; box-shadow: 0 12px 40px rgba(6, 182, 212, 0.12); cursor: pointer;
        }
        .rnk-btn-secondary {
            background: transparent; border: 2px solid rgba(255, 255, 255, 0.12);
            padding: 12px 20px; border-radius: 999px; color: rgba(255, 255, 255, 0.9);
            font-weight: 600; cursor: pointer;
        }
        .rnk-btn-secondary:hover { background: rgba(255,255,255,0.05); border-color: white; }

        /* Hero Visual (Animations) */
        .rnk-hero-visual {
            height: 520px; border-radius: 24px; padding: 28px;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
            box-shadow: 0 40px 120px rgba(7, 10, 20, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.02);
            position: relative; overflow: visible; display: flex; align-items: center; justify-content: center;
            transform-style: preserve-3d; perspective: 1000px;
        }

        /* Floating Orbs */
        .rnk-orb {
            position: absolute; border-radius: 50%; filter: blur(22px); opacity: 0.95;
            mix-blend-mode: screen; animation: rnkOrbFloat linear infinite;
        }
        .rnk-orb.o1 { width: 260px; height: 260px; left: -15px; top: 20px; background: radial-gradient(circle at 30% 30%, rgba(167, 139, 250, 0.95), rgba(124, 58, 237, 0.15)); animation-duration: 14s; }
        .rnk-orb.o2 { width: 200px; height: 200px; right: -30px; bottom: 40px; background: radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.95), rgba(6, 182, 212, 0.08)); animation-duration: 18s; }
        .rnk-orb.o3 { width: 120px; height: 120px; left: 40%; top: -10px; background: radial-gradient(circle at 50% 50%, rgba(255, 209, 102, 0.95), rgba(255, 209, 102, 0.08)); animation-duration: 12s; }
        @keyframes rnkOrbFloat {
            0% { transform: translateY(0) rotate(0); }
            50% { transform: translateY(0) rotate(90deg); } /* fixed empty function */
            100% { transform: translateY(0) rotate(0); }
        }

        /* Glass Card */
        .rnk-glass-card {
            position: relative; width: 100%; height: 420px; border-radius: 16px; overflow: hidden;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(255, 255, 255, 0.04);
            display: flex; align-items: center; justify-content: center;
            backdrop-filter: blur(4px);
            z-index: 10;
        }

        /* Shimmer & Particles */
        .rnk-shimmer {
            position: absolute; inset: 0; pointer-events: none;
            background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.03) 45%, rgba(255, 255, 255, 0.06) 50%, rgba(255, 255, 255, 0.03) 55%, transparent 100%);
            transform: translateX(-140%); animation: rnkShimmer 3.6s var(--ease) infinite;
        }
        @keyframes rnkShimmer { to { transform: translateX(140%); } }

        .rnk-sparkle { position: absolute; border-radius: 50%; opacity: 0.9; mix-blend-mode: screen; }
        .rnk-s1 { width: 8px; height: 8px; background: var(--accent-3); left: 12%; top: 18%; animation: rnkRise 6s linear infinite; }
        .rnk-s2 { width: 6px; height: 6px; background: var(--accent-1); right: 18%; top: 12%; animation: rnkRise 7s linear .6s infinite; }
        .rnk-s3 { width: 5px; height: 5px; background: var(--accent-2); left: 78%; top: 22%; animation: rnkRise 5.5s linear .8s infinite; }
        @keyframes rnkRise {
            0% { transform: translateY(0) scale(.6); opacity: 0; }
            10% { opacity: 1; }
            50% { transform: translateY(-40px) scale(1); }
            90% { opacity: .2; }
            100% { transform: translateY(-80px) scale(.5); opacity: 0; }
        }

        .rnk-reveal { opacity: 0; transform: translateY(32px); transition: opacity .9s var(--ease), transform 1s var(--ease); }
        .rnk-reveal.active { opacity: 1; transform: translateY(0); }
        
        /* =========================================
           5. PHILOSOPHY & DIFFERENTIATION
           ========================================= */
        .section-split {
            padding: var(--spacing-section) 0;
            background: white;
        }
        .grid-2 {
            display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
        }
        .image-frame {
            background-color: #f3f3f3; height: 100%; min-height: 500px;
            border-radius: var(--radius-lg);
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%239C92AC' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
        }

        .diff-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; margin-top: 60px;
        }
        .diff-card {
            background: white; padding: 40px; border-radius: var(--radius-lg); border: 1px solid #E5E7EB;
        }
        .diff-card.highlight {
            background: var(--bg-dark); color: white;
        }
        .diff-card.highlight h3 { color: white; }
        .diff-card.highlight p { color: #D1D5DB; }

        /* =========================================
           6. AI & TECH SECTION
           ========================================= */
        .section-dark {
            background-color: var(--bg-dark); color: var(--color-text-light);
            padding: var(--spacing-section) 0; position: relative; overflow: hidden; width: 100%;
        }
        .section-dark h2, .section-dark h3 { color: white; }
        .section-dark p { color: #9CA3AF; }
        
        .ai-grid {
            display: grid; grid-template-columns: 60% 40%; gap: 10px; align-items: center;
        }

        /* Neural Scene Styles */
        .neural-scene {
            width: 400px; height: 400px; position: relative; transform-style: preserve-3d; perspective: 1200px;
            animation: scene-rotate 30s linear infinite;
        }
        .neural-core {
            position: absolute; top: 50%; left: 50%; width: 80px; height: 80px;
            transform: translate(-50%, -50%); border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #fff, #60A5FA 20%, #3B82F6 60%, #1d4ed8 100%);
            box-shadow: 0 0 40px rgba(96, 165, 250, 0.6), 0 0 80px rgba(96, 165, 250, 0.3), inset 0 0 20px rgba(255,255,255,0.5);
            z-index: 10; animation: core-pulse 3s ease-in-out infinite alternate;
        }
        .ring {
            position: absolute; top: 50%; left: 50%; border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.08); transform-style: preserve-3d;
            box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
        }
        .signal {
            position: absolute; top: 50%; left: 50%; width: 100%; height: 100%;
            transform: translate(-50%, -50%); border-radius: 50%; transform-style: preserve-3d; pointer-events: none;
        }
        .signal::after {
            content: ''; position: absolute; top: -6px; left: 50%; width: 12px; height: 12px;
            border-radius: 50%; background: #fff; transform: translateX(-50%);
            box-shadow: 0 0 20px 5px var(--signal-color);
        }
        /* Rings */
        .ring-1 { width: 450px; height: 450px; margin-left: -225px; margin-top: -225px; border-color: rgba(45, 212, 191, 0.15); transform: rotateX(90deg); }
        .sig-1 { animation: spin-cw 8s linear infinite; --signal-color: #2DD4BF; }
        .ring-2 { width: 380px; height: 380px; margin-left: -190px; margin-top: -190px; border-color: rgba(167, 139, 250, 0.2); transform: rotateX(0deg) rotateY(60deg); }
        .sig-2 { animation: spin-ccw 6s linear infinite; --signal-color: #A78BFA; }
        .ring-3 { width: 380px; height: 380px; margin-left: -190px; margin-top: -190px; border-color: rgba(96, 165, 250, 0.2); transform: rotateX(0deg) rotateY(-60deg); }
        .sig-3 { animation: spin-cw 7s linear infinite; --signal-color: #60A5FA; }
        .ring-4 { width: 200px; height: 200px; margin-left: -100px; margin-top: -100px; border: 1px dashed rgba(255, 255, 255, 0.2); transform: rotateX(45deg) rotateY(45deg); }
        .sig-4 { animation: spin-cw 4s linear infinite; --signal-color: #ffffff; }
        .node { position: absolute; width: 6px; height: 6px; background: white; border-radius: 50%; opacity: 0.6; }

        @keyframes spin-cw { 0% { transform: translate(-50%, -50%) rotateZ(0deg); } 100% { transform: translate(-50%, -50%) rotateZ(360deg); } }
        @keyframes spin-ccw { 0% { transform: translate(-50%, -50%) rotateZ(0deg); } 100% { transform: translate(-50%, -50%) rotateZ(-360deg); } }
        @keyframes core-pulse { 0% { transform: translate(-50%, -50%) scale(0.9); box-shadow: 0 0 30px rgba(96, 165, 250, 0.5); } 100% { transform: translate(-50%, -50%) scale(1.05); box-shadow: 0 0 60px rgba(96, 165, 250, 0.8), 0 0 100px rgba(167, 139, 250, 0.3); } }
        @keyframes scene-rotate { 0% { transform: rotateY(0deg) rotateX(10deg); } 100% { transform: rotateY(360deg) rotateX(10deg); } }

        /* =========================================
           7. PROCESS MODULE (Scoped #rnk-diff-process-module)
           ========================================= */
        #rnk-diff-process-module {
            --rnk-bg-deep: #050505;
            --rnk-bg-panel: #0F1115;
            --rnk-text-main: #1C1917;
            --rnk-text-muted: #57534E;
            --rnk-text-inv: #FFFFFF;
            --rnk-accent-glow: #2DD4BF;
            --rnk-border-light: rgba(0,0,0,0.08);
            --rnk-radius-md: 12px;
            --rnk-ease-fluid: cubic-bezier(0.16, 1, 0.3, 1);
            
            font-family: 'Inter', sans-serif; line-height: 1.6; color: var(--rnk-text-main); width: 100%; box-sizing: border-box;
        }

        .rnk-section { padding: 100px 24px; position: relative; }
        .rnk-bg-dark { background-color: var(--rnk-bg-deep); color: var(--rnk-text-inv); }
.rnk-h2o {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;

    /* NEW BETTER METALLIC GRADIENT (lighter, visible on black) */
    background: linear-gradient(135deg, 
        #222 0%, 
        #555 25%, 
        #bbb 50%, 
        #666 75%, 
        #222 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;

    /* Needed for internal shine clipping */
    position: relative;
    display: inline-block;
    overflow: hidden; /* Makes shine stay INSIDE text */
}

.rnk-h2o::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        transparent 0%,
        rgba(255,255,255,0.7) 50%,
        transparent 100%
    );
    mix-blend-mode: screen; /* Shine stays inside text only */
    filter: blur(6px);       /* Softer glossy shine */
    transform: translateX(-150%);
    animation: glossyMove 2.2s infinite linear;
    pointer-events: none;
}

@keyframes glossyMove {
    0%   { transform: translateX(-150%); }
    100% { transform: translateX(150%); }
}

        .rnk-h2 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; margin-bottom: 1rem; letter-spacing: -0.03em; }

        .rnk-process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 60px; }
        .rnk-process-card {
            background: white; padding: 32px; border-radius: var(--rnk-radius-md);
            border-left: 4px solid var(--rnk-accent-glow);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02); transition: 0.3s;
            color: var(--rnk-text-main);
        }
        .rnk-process-card:hover { transform: translateY(-5px); border-left-width: 8px; }
        .rnk-process-num {
            font-size: 3rem; font-weight: 800; margin-bottom: 10px; line-height: 1;
            background-image: linear-gradient(180deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0.10) 30%, rgba(255,255,255,0) 60%), linear-gradient(90deg, #000000 0%, #2e2e2e 25%, #6f6f6f 50%, #b9a6ff 85%, #d8ccff 100%);
            -webkit-background-clip: text; background-clip: text; color: transparent;
        }
        
        /* =========================================
           8. SERVICES MODULE (Scoped #rnk-services-module)
           ========================================= */
        #rnk-services-module {
            --rnk-bg-panel: #0F1115;
            --rnk-text-main: #1C1917;
            --rnk-text-muted: #57534E;
            --rnk-pastel-blue-bg: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
            --rnk-pastel-peach: #FFEDD5;
            --rnk-accent-glow: #2DD4BF;
            --rnk-border-light: rgba(0,0,0,0.08);
            --rnk-radius-xl: 24px;
            --rnk-ease-fluid: cubic-bezier(0.16, 1, 0.3, 1);
            
            font-family: 'Inter', sans-serif; line-height: 1.6; color: var(--rnk-text-main); box-sizing: border-box; width: 100%; background: transparent; padding: 100px 24px; position: relative;
        }

        .rnk-bento-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .rnk-card {
            background: white; border: 1px solid var(--rnk-border-light); border-radius: var(--rnk-radius-xl);
            padding: 40px; transition: all 0.4s var(--rnk-ease-fluid); position: relative; overflow: hidden;
            display: flex; flex-direction: column; justify-content: space-between; min-height: 320px;
        }
        .rnk-card::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0) 100%);
            transform: translateX(-100%); transition: 0.6s; z-index: 1; pointer-events: none;
        }
        .rnk-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-color: #BAE6FD; }
        .rnk-card:hover::before { transform: translateX(100%); }
        .rnk-card h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; margin-top: 0; color: var(--rnk-text-main); position: relative; z-index: 2; }
        .rnk-card p { font-size: 1.05rem; color: var(--rnk-text-muted); margin: 0; position: relative; z-index: 2; }
        
        /* Special Cards */
        .rnk-main-title-card {
            grid-column: span 2; background: var(--rnk-pastel-blue-bg); align-items: center; justify-content: center; flex-direction: row; gap: 20px;
        }
        .rnk-main-title-card h3 { font-size: clamp(2rem, 3vw, 2.8rem); margin-bottom: 0; line-height: 1.1; letter-spacing: -0.02em; }
        .rnk-arrow-circle {
            width: 60px; height: 60px; background: rgba(255,255,255,0.6); border-radius: 50%; display: flex; align-items: center; justify-content: center;
            border: 1px solid rgba(0,0,0,0.05); transition: transform 0.4s var(--rnk-ease-fluid), background 0.4s; flex-shrink: 0;
        }
        .rnk-card:hover .rnk-arrow-circle { transform: rotate(45deg); background: white; }
        .rnk-peach { background: var(--rnk-pastel-peach); }
        .rnk-dark { background: var(--rnk-bg-panel); border-color: #222; }
        .rnk-dark h3 { color: white; } .rnk-dark p { color: #9CA3AF; }

        /* =========================================
           9. TECH, CONTACT & FOOTER
           ========================================= */
        .tech-section { background: var(--bg-card); margin: var(--spacing-section) 0; overflow: hidden; }
        .tech-grid { display: grid; grid-template-columns: 1fr 1fr; }
        .tech-content { padding: 80px; }
        .tech-image {
            background: var(--bg-dark); position: relative;
        }
        .tech-image::after {
            content: ''; position: absolute; inset: 0;
            background: repeating-linear-gradient(45deg, #1f2937 0, #1f2937 2px, transparent 0, transparent 50%);
            background-size: 20px 20px; opacity: 0.2;
        }

        .contact { padding: 100px 0; background: white; text-align: center; }
        .form-box { max-width: 600px; margin: 40px auto; text-align: left; }
        .input-group { margin-bottom: 20px; }
        input, select, textarea {
            width: 100%; padding: 18px; background: var(--bg-body); border: 1px solid #E5E7EB;
            border-radius: 8px; font-family: inherit; font-size: 1rem; transition: 0.3s;
        }
        input:focus, textarea:focus, select:focus { outline: none; border-color: var(--color-text-main); background: white; }

        footer { background: var(--bg-dark); color: #9CA3AF; padding: 80px 0 20px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
        .footer-col h4 { color: white; margin-bottom: 24px; font-size: 1.1rem; }
        .footer-col li { margin-bottom: 12px; }
        .footer-col a:hover { color: white; text-decoration: underline; }
        .bottom-bar { border-top: 1px solid #374151; padding-top: 24px; display: flex; justify-content: space-between; font-size: 0.9rem; }

        /* =========================================
           10. RESPONSIVE UTILITIES
           ========================================= */
        /* Mobile Menu */
        #rnk-toggle { display: none; cursor: pointer; }
        #rnk-close { display: none; position: absolute; top: 20px; right: 20px; cursor: pointer; }

        @media (max-width: 1024px) {
            h1 { font-size: 3.5rem; }
            .hero-grid, .grid-2, .tech-grid { grid-template-columns: 1fr; gap: 40px; }
            .ai-grid { display: flex !important; flex-direction: column !important; gap: 40px !important; }
            .ai-grid .content { text-align: center; padding: 0 15px; }
            .hero-visual, .image-frame, .tech-image { min-height: 300px; order: -1; }
            .rnk-bento-grid { grid-template-columns: repeat(2, 1fr); }
            .tech-content { padding: 40px 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            #rnk-toggle { display: block; }
            .rnk-hero-grid { grid-template-columns: 1fr; gap: 40px; }
            
            /* Mobile Nav Logic */
            #rnk-nav.mobile-active {
                position: fixed; top: 0; right: 0; width: 75%; height: 100vh;
                background: #FFF; flex-direction: column; padding-top: 80px;
                gap: 32px; transition: 0.4s ease; box-shadow: -10px 0 40px rgba(0,0,0,0.1);
            }
            #rnk-nav:not(.mobile-active) {
                position: fixed; top: 0; right: -100%; width: 75%; height: 100vh;
                background: #FFF; flex-direction: column; padding-top: 80px;
                gap: 32px; transition: 0.4s ease;
            }
            #rnk-close { display: block; }

            /* Visuals */
            .rnk-hero-visual {
                height: 400px !important; max-height: 400px !important; width: 100%;
                overflow: hidden !important; contain: layout paint size style; display: block;
            }
            .neural-scene { animation: scene-rotate-mobile 30s linear infinite !important; }
            @keyframes scene-rotate-mobile {
                0%   { transform: scale(0.55) rotateY(0deg) rotateX(10deg); }
                100% { transform: scale(0.55) rotateY(360deg) rotateX(10deg); }
            }
            .visual[style] { height: 350px !important; max-width: 100vw !important; overflow: hidden !important; }

            /* Bento & Grid Adjustments */
            .rnk-bento-grid { grid-template-columns: 1fr; }
            .rnk-main-title-card { grid-column: span 1; flex-direction: column; text-align: center; align-items: center; }
            .rnk-process-grid { grid-template-columns: 1fr; }
            .rnk-section { padding: 60px 20px; }
            .rnk-card { min-height: auto; padding: 30px; }
            .rnk-h2 { font-size: 2.5rem; }
            .rnk-h2o { font-size: 2.5rem; }

        }
/* Hide ONLY the hero visual on mobile */
@media (max-width: 768px) {
    .rnk-hero-visual {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
    }
}