/* CORE THEME & RESET */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Helvetica Neue', Arial, sans-serif; }
body { background-color: #0b0e14; color: #e0e0e0; overflow-x: hidden; }

/* SCROLL TRACK ARCHITECTURE */
#scroll-track { height: 800vh; position: relative; }

/* THE STICKY VIEWPORT */
#sticky-container {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    background-color: #0b0e14;
}

/* MASTER CANVAS SETTINGS */
#master-canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 100%;
    min-height: 100%;
    object-fit: cover; 
    z-index: 1;
}

/* PREMIUM UI OVERLAYS */
.ui-layer {
    position: absolute;
    z-index: 10;
    width: 100%;
    height: 100%;
    pointer-events: none; 
}

.text-card {
    position: absolute;
    background: rgba(11, 14, 20, 0.65);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 2rem;
    border-radius: 8px;
    width: 350px;
    opacity: 0; 
    visibility: hidden;
    pointer-events: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border-left: 4px solid #4a90e2; 
}

/* Specific CSS for Obsidian Estates */
#card-obsidian {
    background: rgba(11, 14, 20, 0.35); 
    backdrop-filter: blur(6px); 
    border-left: none;
    border-top: 4px solid #4a90e2;
    text-align: center;
}

.text-card h2 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.text-card p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: #b0b8c4;
    margin-bottom: 1.5rem;
}

.cyber-btn {
    display: inline-block;
    padding: 10px 20px;
    background: transparent;
    color: #ffffff;
    border: 1px solid #4a90e2;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.cyber-btn:hover { background: #4a90e2; color: #0b0e14; font-weight: bold; }

/* EXACT REQUESTED POSITIONING */
#card-ironclad { top: 15%; right: 5%; }
#card-hyperion { top: 50%; right: 5%; transform: translateY(-50%); }
#card-digital { top: 50%; right: 5%; transform: translateY(-50%); }
#card-obsidian { top: 50%; left: 50%; transform: translate(-50%, -50%); }
#card-covenant { top: 50%; left: 5%; transform: translateY(-50%); }
#card-master { bottom: 10%; left: 50%; transform: translateX(-50%); text-align: center; border-left: none; border-top: 4px solid silver; }

/* Permanent Footer beneath the scroll */
#master-footer {
    height: 100vh;
    background-color: transparent; 
    position: relative;
    z-index: 20;
    pointer-events: none;
}