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

:root {
    --bg: #0e0e0f;
    --bg-panel: #141416;
    --bg-input: #1a1a1d;
    --border: #2a2a2e;
    --border-active: #404046;
    --text-primary: #f0eee8;
    --text-secondary: #6b6b72;
    --text-muted: #3d3d42;
    --accent: #c8fa64;
    --accent-dim: #8fba2a;
    --accent-bg: #1a2408;
    --font-display: 'Syne', sans-serif;
    --font-mono: 'DM Mono', monospace;
    --radius: 6px;
    --radius-lg: 10px;
}

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
}

.logo-mark {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    margin-right: 10px;
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.logo-text em {
    font-style: normal;
    color: var(--accent);
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    height: calc(100vh - 56px - 48px);
}

.panel {
    background: var(--bg-panel);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow: hidden;
}

.panel-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.video-zone {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    min-height: 0
}

.video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 0.08em;
}

#video-preview {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.input-row {
    display: flex;
    gap: 8px;
}

input[type="text"] {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0 12px;
    height: 36px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
    transition: border-color 0.15s;
}

input[type="text"]:focus {
    border-color: var(--border-active);
}

input[type="text"]::placeholder {
    color: var(--text-muted);
}

#video-link{
    display: none;
    flex: 0.1;
}

#load-youtube{
    display:none;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0 14px;
    height: 36px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.06em;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.btn:hover {
    border-color: var(--border-active);
    color: var(--text-primary);
}

.btn:active { transform: scale(0.98); }

.btn-ghost {
    background: var(--bg-input);
}

.btn-primary {
    background: var(--accent-bg);
    border-color: var(--accent-dim);
    color: var(--accent);
    width: 100%;
    justify-content: center;
    font-size: 12px;
}

.btn-primary:hover:not(:disabled) {
    background: #223210;
    border-color: var(--accent);
}

.btn-primary:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: var(--border);
    color: var(--text-muted);
    background: transparent;
}

#local-or-video{
    display: flex;
    justify-content: space-around;
    button{
        width: 48%;
    }
}

.library-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    overflow-y: auto;
}

.library-list::-webkit-scrollbar { width: 3px; }
.library-list::-webkit-scrollbar-track { background: transparent; }
.library-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.library-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: border-color 0.15s, background 0.15s;
    animation: slide-in 0.25s ease both;
}

@keyframes slide-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.library-item:hover {
    background: var(--bg-input);
    border-color: var(--border);
}

.library-item.playing {
    background: var(--accent-bg);
    border-color: var(--accent-dim);
}

.item-index {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 500;
    min-width: 20px;
}

.item-name {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-date {
    font-size: 10px;
    color: var(--text-muted);
}

.button-in-list {
    padding: 0 10px;
    height: 26px;
    font-size: 10px;
    border-radius: 4px;
    flex-shrink: 0;
}

.button-in-list.active {
    border-color: var(--accent-dim);
    color: var(--accent);
    background: var(--accent-bg);
}

footer {
    height: 48px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 28px;
    position: relative;
    overflow: hidden;
}

.status-line {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    transition: color 0.3s;
    z-index: 1;
}

.status-line.active { color: var(--accent-dim); }
.status-line.done   { color: var(--accent); }
.status-line.error  { color: #f56565; }

.progress-bar {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 0%;
    background: var(--accent);
    transition: width 0.4s ease;
}
.sim-badge {
            display: none;
            font-family: var(--font-mono);
            font-size: 10px;
            font-weight: 500;
            letter-spacing: 0.12em;
            color: #f6ad55;
            background: rgba(246,173,85,0.1);
            border: 1px solid rgba(246,173,85,0.35);
            border-radius: 4px;
            padding: 2px 7px;
            margin-right: 10px;
        }