:root {
    --bg-color: #0f1115;
    --panel-bg: #1a1d24;
    --border-color: #2a2e37;
    --text-primary: #f0f2f5;
    --text-secondary: #9ba1b0;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --success: #10b981;
    --danger: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: url('assets/character_widescreen.png');
    background-size: cover;
    background-position: right top;
    background-attachment: fixed;
    background-repeat: no-repeat;
    color: var(--text-primary);
    line-height: 1.5;
    display: flex;
    justify-content: flex-start;
    padding: 3rem 5%;
    min-height: 100vh;
}

.container {
    max-width: 650px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 1;
}

header {
    background: rgba(26, 29, 36, 0.92);
    padding: 1.5rem 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

header h1 span {
    font-size: 0.8rem;
    background: rgba(79, 70, 229, 0.2);
    color: #818cf8;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

header p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    background: rgba(26, 29, 36, 0.92);
    transition: all 0.2s ease;
    cursor: pointer;
    overflow: hidden;
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent);
    background: rgba(79, 70, 229, 0.05);
}

.dropzone input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.drop-content {
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.drop-content svg {
    color: var(--accent);
}

.drop-content h3 {
    font-weight: 600;
}

.drop-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.panel {
    background: rgba(26, 29, 36, 0.92);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn 0.4s ease-out;
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hidden {
    display: none !important;
}

/* Responsive Grid for Settings */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 600px) {
    .settings-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.speed-badge {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.progress-bar-container {
    height: 8px;
    background: #000;
    border-radius: 9999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.1s linear;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-box {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-box .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-box .value {
    font-size: 1.25rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.visualizers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 0.5rem;
}

.viz-box {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.viz-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

canvas {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    image-rendering: pixelated;
}

.ranges-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 300px;
    overflow-y: auto;
}

.range-item {
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid var(--accent);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.range-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.timeline-marker {
    transition: background-color 0.2s ease;
}

.timeline-marker:hover {
    background-color: rgba(239, 68, 68, 0.8) !important;
}

.range-times {
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.range-dur {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-family: inherit;
}

.btn.primary {
    background: var(--accent);
    color: white;
}

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

.btn.secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn.secondary:hover {
    background: rgba(255,255,255,0.05);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}