:root {
            --bg-dark: #2F3645;
            --pink: #FFAAAA;
            --white: #FFFFFF;
            --black: #000000;
        }

        /* CUSTOM FONT REPLACEMENT (Sansation Alternative: Rajdhani for Industrial Feel) */
        body {
            font-family: 'Rajdhani', sans-serif;
            background-color: var(--bg-dark);
            color: var(--white);
            margin: 0;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* TYPOGRAPHY SYSTEM */
        h1, h2, h3, h4 { font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
        .sansation-bold { font-weight: 700; }
        .sansation-regular { font-weight: 500; }
        .sansation-light { font-weight: 300; font-size: 0.9rem; letter-spacing: 2px; }
        .sansation-italic { font-style: italic; }

        /* STRICT COLOR RULES */
        .bg-dark-panel { background-color: var(--bg-dark); color: var(--white); }
        .bg-dark-panel h1, .bg-dark-panel h2, .bg-dark-panel h3 { color: var(--pink); }
        
        .bg-pink-panel { background-color: var(--pink); color: var(--black); }
        .bg-pink-panel h1, .bg-pink-panel h2, .bg-pink-panel h3 { color: var(--black); }
        .bg-pink-panel p { color: var(--black); }

        /* SHARP UI - NO ROUNDED CORNERS */
        * { border-radius: 0 !important; }

        /* BUTTONS */
        .btn-pink {
            background: var(--pink);
            color: var(--black);
            padding: 1rem 2rem;
            font-weight: 700;
            text-transform: uppercase;
            border: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        .btn-pink:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }

        .btn-dark {
            background: var(--black);
            color: var(--white);
            padding: 1rem 2rem;
            font-weight: 700;
            text-transform: uppercase;
            border: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        .btn-dark:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 20px rgba(255,170,170,0.2);
        }

        /* LAYERED ROOF PANELS (HERO) */
        .roof-layer {
            position: absolute;
            width: 120%;
            height: 100%;
            left: -10%;
            transform: skewY(-5deg);
            z-index: -1;
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
        }
        .layer-1 { background: #3a4254; top: -10%; }
        .layer-2 { background: #29303d; top: 10%; }
        .layer-3 { background: #1f2530; top: 30%; }

        /* OFFSET GRID BOXES */
        .data-block {
            background: white;
            color: black;
            padding: 1.5rem;
            box-shadow: 10px 10px 0px var(--black);
            position: relative;
            z-index: 10;
        }

        /* VERTICAL SHEET CARDS */
        .sheet-card {
            background: #242b37;
            border-top: 4px solid var(--pink);
            padding: 3rem 2rem;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            height: 100%;
        }
        .sheet-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 0 30px var(--pink);
        }

        /* STACKED TIMELINE */
        .timeline-row {
            border-bottom: 2px solid rgba(0,0,0,0.1);
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 100px 1fr;
            align-items: center;
        }
        .step-num {
            background: white;
            color: black;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.5rem;
        }

        /* MASONRY GRID */
        .masonry {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-auto-rows: 200px;
            gap: 1rem;
        }
        .masonry-item { position: relative; overflow: hidden; }
        .m-large { grid-column: span 8; grid-row: span 3; }
        .m-tall { grid-column: span 4; grid-row: span 5; }
        .m-small { grid-column: span 4; grid-row: span 2; }
        .m-med { grid-column: span 4; grid-row: span 3; }

        .overlay {
            position: absolute;
            inset: 0;
            background: rgba(47, 54, 69, 0.9);
            padding: 2rem;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .masonry-item:hover .overlay { opacity: 1; }
        .masonry-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: grayscale(100%);
            transition: transform 0.5s;
        }
        .masonry-item:hover img { transform: scale(1.1); filter: grayscale(0%); }

        /* NAVIGATION */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(47, 54, 69, 0.95);
            border-bottom: 1px solid rgba(255,170,170,0.2);
        }


        .modal {
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.9);
    z-index:100;
    padding:5%;
    overflow:auto;
}
.modal-content {
    max-width:800px;
    margin:auto;
    background:#111;
    padding:40px;
    border-left:6px solid var(--pink);
}
        /* ANIMATIONS */
        @keyframes slideIn {
            from { transform: translateX(-50px); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        .animate-slide { animation: slideIn 0.8s forwards; }

        .hidden-page { display: none; }