/* Resonance Lab - CSS */

:root {
    --color-void: #0f0d24;
    --color-void-light: #1a1838;
    --color-void-lighter: #252347;
    
    --color-plasma-cyan: #00fff2;
    --color-plasma-blue: #0ea5e9;
    --color-plasma-purple: #a855f7;
    --color-plasma-pink: #ec4899;
    --color-plasma-orange: #f97316;
    
    --color-text: #e5e7eb;
    --color-text-muted: #9ca3af;
    --color-text-dim: #6b7280;
    
    --font-main: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --safe-top: env(safe-area-inset-top, 20px);
    --safe-bottom: env(safe-area-inset-bottom, 20px);
}

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

html, body {
    font-family: var(--font-main);
    background: var(--color-void);
    color: var(--color-text);
    height: 100%;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Header */
.lab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(var(--safe-top) + 10px) 20px 10px;
    background: rgba(15, 13, 36, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 100;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--color-plasma-cyan);
}

.lab-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lab-badge {
    padding: 4px 10px;
    background: rgba(168, 85, 247, 0.2);
    border: 1px solid rgba(168, 85, 247, 0.4);
    border-radius: 12px;
    font-size: 0.7rem;
    color: var(--color-plasma-purple);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lab-title h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.info-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 8px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
}

.info-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-plasma-cyan);
}

/* Main Layout */
.lab-main {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 320px;
    overflow: hidden;
}

/* Visualization Section */
.viz-section {
    position: relative;
    background: var(--color-void);
    overflow: hidden;
}

#viz-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

#three-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
}

#three-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* Metrics Bar */
.metrics-bar {
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    display: flex;
    gap: 20px;
    padding: 12px 20px;
    background: rgba(15, 13, 36, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.metric-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-dim);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-plasma-cyan);
}

/* Geometry Selector */
.geometry-selector {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    padding: 8px;
    background: rgba(15, 13, 36, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
}

.geo-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-radius: 12px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
}

.geo-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
}

.geo-btn.active {
    background: rgba(0, 255, 242, 0.15);
    color: var(--color-plasma-cyan);
}

.geo-icon {
    font-size: 1.5rem;
}

.geo-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Controls Panel */
.controls-panel {
    background: var(--color-void-light);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px;
    overflow-y: auto;
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-header svg {
    color: var(--color-plasma-cyan);
}

/* Control Groups */
.control-group {
    margin-bottom: 25px;
}

.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.control-group label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: block;
    margin-bottom: 10px;
}

.control-header label {
    margin-bottom: 0;
}

.control-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-plasma-cyan);
}

.control-hints {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--color-text-dim);
    margin-top: 5px;
}

/* Sliders */
.slider {
    width: 100%;
    height: 6px;
    background: var(--color-void-lighter);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-plasma-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-plasma-cyan);
    transition: transform 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-purple::-webkit-slider-thumb {
    background: var(--color-plasma-purple);
    box-shadow: 0 0 10px var(--color-plasma-purple);
}

.slider-pink::-webkit-slider-thumb {
    background: var(--color-plasma-pink);
    box-shadow: 0 0 10px var(--color-plasma-pink);
}

/* Waveform Grid */
.waveform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.wave-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 5px;
    background: var(--color-void-lighter);
    border: 1px solid transparent;
    border-radius: 10px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.7rem;
}

.wave-btn:hover {
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}

.wave-btn.active {
    background: rgba(0, 255, 242, 0.15);
    border-color: rgba(0, 255, 242, 0.3);
    color: var(--color-plasma-cyan);
}

.wave-icon {
    font-size: 1.3rem;
}

/* Medium Grid */
.medium-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.medium-btn {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 10px 12px;
    background: var(--color-void-lighter);
    border: 1px solid transparent;
    border-radius: 10px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    text-align: left;
}

.medium-btn:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.medium-btn.active {
    background: rgba(var(--medium-color), 0.15);
    border-color: var(--medium-color);
    color: var(--medium-color);
}

.medium-btn.active[data-medium="water"] { 
    background: rgba(14, 165, 233, 0.15); 
    border-color: #0ea5e9; 
    color: #0ea5e9; 
}
.medium-btn.active[data-medium="tissue"] { 
    background: rgba(249, 115, 22, 0.15); 
    border-color: #f97316; 
    color: #f97316; 
}
.medium-btn.active[data-medium="air"] { 
    background: rgba(168, 85, 247, 0.15); 
    border-color: #a855f7; 
    color: #a855f7; 
}
.medium-btn.active[data-medium="bone"] { 
    background: rgba(100, 116, 139, 0.15); 
    border-color: #64748b; 
    color: #94a3b8; 
}

.medium-speed {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    opacity: 0.7;
}

/* Advanced Controls */
.control-group.advanced {
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Waveform Info */
.waveform-info {
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    border-left: 3px solid var(--color-plasma-cyan);
}

.waveform-info p {
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--color-text-muted);
}

.waveform-info strong {
    color: var(--color-text);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--color-void-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--color-plasma-pink);
}

.modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--color-plasma-cyan);
}

.modal-content h3 {
    font-size: 1.1rem;
    margin: 20px 0 10px;
    color: var(--color-text);
}

.modal-content p {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 15px;
}

.modal-content ul {
    list-style: none;
    padding: 0;
}

.modal-content li {
    padding: 8px 0;
    color: var(--color-text-muted);
    padding-left: 20px;
    position: relative;
}

.modal-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-plasma-purple);
}

.modal-content li strong {
    color: var(--color-text);
}

/* Responsive */
@media (max-width: 900px) {
    .lab-main {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }
    
    .controls-panel {
        max-height: 40vh;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .metrics-bar {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .metric {
        flex: 1;
        min-width: 80px;
    }
}

@media (max-width: 600px) {
    .geometry-selector {
        bottom: 10px;
        padding: 6px;
        gap: 4px;
    }
    
    .geo-btn {
        padding: 10px 15px;
    }
    
    .waveform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lab-title h1 {
        font-size: 1rem;
    }
}

/* Info Icons & Tooltips */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-left: 6px;
    font-size: 12px;
    font-style: normal;
    color: var(--color-text-dim);
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    cursor: help;
    transition: all 0.2s ease;
    position: relative;
    vertical-align: middle;
}

.info-icon:hover {
    color: var(--color-plasma-cyan);
    background: rgba(0, 255, 242, 0.15);
    transform: scale(1.1);
}

/* Tooltip */
.info-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 260px;
    padding: 12px 14px;
    background: rgba(15, 13, 36, 0.98);
    border: 1px solid rgba(0, 255, 242, 0.3);
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text);
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* Tooltip arrow */
.info-icon::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(0, 255, 242, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1001;
}

.info-icon:hover::after,
.info-icon:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Adjust tooltip position on right side of screen */
.control-header .info-icon::after {
    left: auto;
    right: -10px;
    transform: none;
}

.control-header .info-icon::before {
    left: auto;
    right: 2px;
    transform: none;
}

/* Geometry info icon */
.geo-info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    font-size: 12px;
    font-style: normal;
    color: var(--color-text-dim);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    cursor: help;
    transition: all 0.2s ease;
    position: relative;
    margin-right: 8px;
}

.geo-info-icon:hover {
    color: var(--color-plasma-cyan);
    background: rgba(0, 255, 242, 0.2);
}

.geo-info-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    padding: 12px 14px;
    background: rgba(15, 13, 36, 0.98);
    border: 1px solid rgba(0, 255, 242, 0.3);
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text);
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.geo-info-icon:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Mobile tooltip adjustments */
@media (max-width: 768px) {
    .info-icon::after {
        width: 200px;
        font-size: 0.75rem;
        padding: 10px 12px;
    }
    
    .geo-info-icon::after {
        width: 180px;
        font-size: 0.75rem;
    }
}