:root {
    --bg-color: #02040a;
    --panel-bg: rgba(8, 12, 24, 0.85);
    --neon-green: #00ff99;
    --neon-cyan: #00ffff;
    --text-color: #d9f7ff;
    --accent: #ff00ff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Share Tech Mono', monospace;
    background: radial-gradient(circle at top, rgba(0, 128, 128, 0.2), #010204 60%, #000000);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top, rgba(0, 128, 128, 0.3), #010204 60%, #000000);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

#loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-content {
    text-align: center;
    padding: 40px;
}

.loading-content h2 {
    color: var(--neon-green);
    font-size: 32px;
    margin-bottom: 40px;
    text-shadow: 0 0 20px rgba(0, 255, 153, 0.8);
    letter-spacing: 3px;
}

.progress-container {
    width: 400px;
    max-width: 90vw;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(0, 255, 153, 0.1);
    border: 2px solid var(--neon-green);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(0, 255, 153, 0.3);
    margin-bottom: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
    width: 0%;
    transition: width 0.3s ease-out;
    box-shadow: 0 0 20px rgba(0, 255, 153, 0.8);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.progress-text {
    color: var(--neon-cyan);
    font-size: 14px;
    text-align: center;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    letter-spacing: 1px;
}

#graph {
    position: absolute;
    inset: 0;
}

#info-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: min(320px, calc(100vw - 40px));
    max-width: 400px;
    max-height: 100vh;
    height: 100vh;
    background: var(--panel-bg);
    border: 2px solid var(--neon-green);
    border-left: none;
    box-shadow: 0 0 25px rgba(0, 255, 153, 0.6);
    border-radius: 0 12px 12px 0;
    backdrop-filter: blur(4px);
    z-index: 1000;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
}

.panel-header {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 255, 153, 0.3);
    cursor: pointer;
}

.panel-content {
    height: calc(100vh - 60px);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
}

/* Мобильная версия - панель внизу экрана */
@media (max-width: 768px) {
    #info-panel {
        width: 100vw;
        max-width: 100vw;
        height: 50vh;
        max-height: 50vh;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        transform: translateY(0);
        border-radius: 12px 12px 0 0;
        border: 2px solid var(--neon-green);
        border-bottom: none;
        transition: transform 0.3s ease-in-out;
        touch-action: pan-y;
    }
    
    #info-panel.panel-collapsed {
        transform: translateY(calc(100% - 60px));
    }
    
    .panel-header {
        padding: 10px 15px;
        border-bottom: 1px solid rgba(0, 255, 153, 0.3);
        cursor: pointer;
        user-select: none;
        position: relative;
    }
    
    .panel-header::after {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: rgba(0, 255, 153, 0.5);
        border-radius: 2px;
    }
    
    .panel-header h1 {
        margin: 0;
        font-size: 16px;
        text-align: center;
    }
    
    .panel-content {
        height: calc(50vh - 60px);
        padding: 15px;
        overflow-y: auto;
        overflow-x: hidden;
    }
    
    #info-panel.panel-collapsed .panel-content {
        display: none;
    }
    
    #info-panel.panel-collapsed .panel-header {
        padding: 15px;
    }
    
    #info-panel.panel-collapsed .panel-header h1 {
        font-size: 14px;
    }
}

/* Десктоп версия - всегда видна */
/* Используем not для touch устройств, чтобы мобильные всегда использовали мобильную версию */
@media (min-width: 769px) and (hover: hover) and (pointer: fine) {
    #info-panel {
        cursor: default;
        top: 0 !important;
        bottom: auto !important;
        left: 0 !important;
        right: auto !important;
        width: min(320px, calc(100vw - 40px)) !important;
        max-width: 400px !important;
        height: 100vh !important;
        max-height: 100vh !important;
        transform: translateX(0) !important;
        border-radius: 0 12px 12px 0 !important;
        border-left: none !important;
        border-bottom: 2px solid var(--neon-green) !important;
    }
    
    #info-panel.panel-expanded {
        transform: translateX(0) !important;
    }
    
    .panel-content {
        display: block !important;
        height: calc(100vh - 60px) !important;
    }
}

#info-panel h1 {
    margin: 0 0 10px 0;
    color: var(--neon-green);
    text-align: center;
    letter-spacing: 2px;
}

#stats p {
    margin: 6px 0;
    color: var(--neon-cyan);
}

#legend {
    margin: 15px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 170px;
    overflow-y: auto;
    padding-right: 6px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #bdfcfc;
    background: rgba(0, 255, 153, 0.08);
    border: 1px solid transparent;
    padding: 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    flex: 1 1 45%;
    word-break: break-word;
    text-align: left;
    transition: border 0.2s, background 0.2s;
}

.legend-item span:last-child {
    flex: 1;
}

.legend-item.active {
    border-color: var(--neon-green);
    background: rgba(0, 255, 153, 0.2);
    color: var(--neon-green);
}

.legend-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: 0 0 6px currentColor;
    flex-shrink: 0;
}

#details {
    min-height: 100px;
    margin-bottom: 20px;
    line-height: 1.4;
}

#details a {
    color: var(--neon-cyan);
    text-decoration: underline;
    cursor: pointer;
    transition: color 0.2s;
}

#details a:hover {
    color: var(--neon-green);
}

.legend-item span:last-child {
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 200px;
}

#controls ul {
    padding-left: 18px;
    margin: 10px 0;
}

#controls li {
    font-size: 12px;
    margin-bottom: 4px;
}

button {
    width: 100%;
    padding: 10px 14px;
    background: transparent;
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

button:hover {
    background: var(--neon-green);
    color: #000;
}

#tooltip {
    position: absolute;
    pointer-events: none;
    padding: 8px 10px;
    background: rgba(5, 10, 16, 0.8);
    border: 1px solid var(--neon-cyan);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 12px;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.4);
    z-index: 5;
}

#tooltip.hidden {
    display: none;
}