:root {
    --bg: #07090e;
    --panel-bg: rgba(12, 16, 28, 0.82);
    --border: rgba(0, 243, 255, 0.25);
    --border-glow: 0 0 16px rgba(0, 243, 255, 0.35);
    --cyan: #00f3ff;
    --pink: #ff006e;
    --orange: #ff9d00;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --font-mono: 'Space Mono', monospace;
    --font-heading: 'Orbitron', 'Share Tech Mono', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

header {
    height: 60px;
    background: rgba(10, 14, 24, 0.9);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.title-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}

.cad-badge {
    background: rgba(0, 243, 255, 0.15);
    border: 1px solid var(--cyan);
    color: var(--cyan);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 1px;
}

h1 {
    font-size: 1.15rem;
    color: #fff;
    letter-spacing: 1.5px;
    font-weight: 700;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff0055;
}

.status-badge.active .status-dot {
    background: #00ff88;
    box-shadow: 0 0 10px #00ff88;
}

main {
    flex: 1;
    display: flex;
    position: relative;
    overflow: hidden;
}

#viewport-container {
    flex: 1;
    height: 100%;
    position: relative;
}

.sidebar {
    width: 380px;
    background: var(--panel-bg);
    backdrop-filter: blur(14px);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 5;
}

.sidebar-section {
    background: rgba(18, 24, 38, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.15);
    border-radius: 8px;
    padding: 16px;
}

.section-title {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--cyan);
    margin-bottom: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.preset-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-dim);
    padding: 10px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    transition: 0.2s;
    text-align: left;
}

.preset-btn:hover {
    border-color: var(--cyan);
    color: #fff;
    background: rgba(0, 243, 255, 0.1);
}

.preset-btn.active {
    border-color: var(--cyan);
    background: rgba(0, 243, 255, 0.2);
    color: var(--cyan);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
    font-weight: 700;
}

.control-row {
    margin-bottom: 14px;
}

.control-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 6px;
}

.control-val {
    color: var(--cyan);
    font-weight: 700;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--cyan);
    background: rgba(0, 0, 0, 0.4);
    height: 5px;
    border-radius: 3px;
    outline: none;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    cursor: pointer;
    margin-top: 8px;
    color: var(--text-dim);
}

.export-btn-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-export {
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(0, 243, 255, 0.05));
    border: 1px solid var(--cyan);
    color: #fff;
    padding: 12px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    transition: 0.2s;
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-export:hover {
    background: var(--cyan);
    color: #000;
    box-shadow: var(--border-glow);
    transform: translateY(-1px);
}

.btn-export.pink {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.2), rgba(255, 0, 110, 0.05));
    border-color: var(--pink);
}

.btn-export.pink:hover {
    background: var(--pink);
    color: #fff;
    box-shadow: 0 0 16px rgba(255, 0, 110, 0.4);
}

.btn-export.all {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.3), rgba(0, 243, 255, 0.15));
    border-color: #00ff88;
    color: #00ff88;
    box-shadow: 0 0 12px rgba(0, 255, 136, 0.25);
    font-size: 0.8rem;
    padding: 13px 16px;
    margin-bottom: 4px;
}

.btn-export.all:hover {
    background: #00ff88;
    color: #000;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.65);
    transform: translateY(-1px);
}