:root {
    --bg-color: #0a0a0c;
    --panel-color: #141417;
    --accent-color: #f0f0f0;
    --dim-text: #888;
    --border-style: 1px solid #2a2a2e;
    --lace-pattern: radial-gradient(circle, #2a2a2e 1px, transparent 1px);
}

body {
    background-color: var(--bg-color);
    color: var(--accent-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

header {
    width: 100%;
    padding: 2rem 0;
    text-align: center;
    background-size: 20px 20px;
    border-bottom: var(--border-style);
    margin-bottom: 2rem;
}

h1 {
    font-weight: 200;
    letter-spacing: 0.5rem;
    text-transform: uppercase;
    margin: 0;
    text-shadow: 0 0 15px rgba(255,255,255,0.2);
}

/* Main Viewer Container */
.viewer-container {
    width: 90%;
    max-width: 1100px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 20px;
    padding-bottom: 50px;
}

/* Image Display Area */
.image-frame {
    background: var(--panel-color);
    border: var(--border-style);
    padding: 15px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
}

.main-image {
    max-width: 100%;
    height: auto;
    border: 1px solid #000;
    transition: transform 0.3s ease;
}

.main-image:hover {
    cursor: zoom-in;
}

/* Sidebar Info */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background: var(--panel-color);
    border: var(--border-style);
    padding: 20px;
}

h2 {
    font-size: 0.9rem;
    color: var(--dim-text);
    text-transform: uppercase;
    margin-bottom: 10px;
    border-bottom: 1px solid #2a2a2e;
    padding-bottom: 5px;
}

/* Controls */
.controls {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.btn {
    background: transparent;
    border: var(--border-style);
    color: var(--accent-color);
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.1rem;
}

.btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}

/* Subtle Scanned Effect Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%), 
                linear-gradient(90deg, rgba(255, 0, 0, 0.02), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.02));
    background-size: 100% 4px, 3px 100%;
    pointer-events: none;
    z-index: 10;
}

@media (max-width: 850px) {
    .viewer-container {
        grid-template-columns: 1fr;
    }
    .sidebar {
        order: 2;
    }
}