:root {
    --bg-dark: #0f172a;
    --sidebar-bg: #1e293b;
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.4);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

h1, label, .radio-group button {
    font-family: 'Outfit', sans-serif;
}

.dashboard-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background-color: var(--sidebar-bg);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    z-index: 10;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo h1 span {
    color: var(--accent);
    font-weight: 400;
}

.header-info {
    color: var(--text-dim);
    font-size: 0.875rem;
}

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

/* Sidebar Styles */
.sidebar {
    width: 320px;
    background-color: var(--sidebar-bg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    border-right: 1px solid var(--border);
    overflow-y: auto;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.control-group label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    font-weight: 600;
}

select {
    background-color: #0f172a;
    border: 1px solid var(--border);
    color: white;
    padding: 0.75rem;
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    font-size: 1rem;
    transition: border-color 0.2s;
}

select:focus {
    border-color: var(--accent);
}

.radio-group {
    display: flex;
    background-color: #0f172a;
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.radio-group button {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 0.6rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 7px;
    transition: all 0.2s;
}

.radio-group button.active {
    background-color: var(--accent);
    color: var(--bg-dark);
    font-weight: 700;
    box-shadow: 0 0 15px var(--accent-glow);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 2rem;
    color: var(--text-dim);
    font-size: 0.75rem;
    text-align: center;
}

/* Viewer Styles */
.viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #020617;
    padding: 1.5rem;
    gap: 1.5rem;
    position: relative;
}

.image-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border);
    box-shadow: inset 0 0 50px rgba(0,0,0,0.5);
}

#main-plot {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: opacity 0.2s;
}

/* Player Controls */
.player-controls {
    background-color: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.3);
}

.timeline-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.time-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-dim);
}

#hour-label, #hour-value {
    color: var(--accent);
    font-weight: 700;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -7px;
    box-shadow: 0 0 10px var(--accent-glow);
}

.button-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.button-controls button {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.button-controls button:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--accent);
    transform: scale(1.05);
}

.button-controls button svg {
    width: 24px;
    height: 24px;
    fill: var(--text-main);
}

#btn-play {
    background-color: var(--accent);
    border: none;
}

#btn-play:hover {
    background-color: #7dd3fc;
    box-shadow: 0 0 20px var(--accent-glow);
}

#btn-play svg {
    fill: var(--bg-dark);
}

.speed-control {
    width: 140px;
}

.speed-control label {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 0.25rem;
    display: block;
}

.speed-control select {
    width: 100%;
    padding: 0.4rem;
    font-size: 0.875rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

.loader-hidden {
    display: none;
}

.loader {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 1024px) {
    .sidebar { width: 260px; padding: 1.5rem; }
    .player-controls { flex-direction: column; padding: 1rem; gap: 1rem; }
    .button-controls { order: 2; }
    .speed-control { order: 3; width: 100%; }
}