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

:root {
    --bg-primary: #121212;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #242424;
    --bg-hover: #2a2a2a;
    --border: #333;
    --text-primary: #e8e8e8;
    --text-secondary: #999;
    --text-muted: #666;
    --accent: #6c5ce7;
    --accent-hover: #7d6ff0;
    --accent-glow: rgba(108, 92, 231, 0.25);
    --success: #00b894;
    --danger: #e17055;
    --warning: #fdcb6e;
    --radius: 10px;
    --radius-sm: 6px;
    --sidebar-width: 240px;
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', Consolas, monospace;
}

html {
    font-size: 15px;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* ── Layout ── */

.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), #a29bfe);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
}

.sidebar-brand strong {
    display: block;
    font-size: 16px;
    letter-spacing: 2px;
}

.sidebar-brand small {
    color: var(--text-secondary);
    font-size: 11px;
    letter-spacing: 3px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent-hover);
    font-weight: 600;
}

.nav-icon {
    font-size: 16px;
    width: 22px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.admin-avatar {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    color: var(--accent-hover);
}

.main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.topbar {
    padding: 24px 32px 0;
}

.topbar h1 {
    font-size: 24px;
    font-weight: 600;
}

.content {
    padding: 24px 32px 40px;
}

/* ── Login ── */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(162, 155, 254, 0.06) 0%, transparent 50%),
        var(--bg-primary);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 36px;
}

.login-brand {
    text-align: center;
    margin-bottom: 32px;
}

.brand-icon-lg {
    display: inline-flex;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent), #a29bfe);
    border-radius: var(--radius);
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.login-brand h1 {
    font-size: 22px;
    letter-spacing: 3px;
    margin-bottom: 4px;
}

.login-brand p {
    color: var(--text-secondary);
    font-size: 13px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.login-hint {
    margin-top: 20px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* ── Forms ── */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 14px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="file"],
select,
textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 14px;
    transition: border-color 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
    font-family: var(--font-mono);
    font-size: 13px;
    resize: vertical;
}

select {
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ── Buttons ── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}

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

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

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

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(225, 112, 85, 0.15);
    color: var(--danger);
    border: 1px solid rgba(225, 112, 85, 0.3);
}

.btn-danger:hover {
    background: rgba(225, 112, 85, 0.25);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

/* ── Cards ── */

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.card h3 {
    font-size: 16px;
    margin-bottom: 18px;
    color: var(--text-primary);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.page-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
    align-items: start;
}

.card-full {
    grid-column: 1 / -1;
}

@media (max-width: 900px) {
    .page-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Stats ── */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-hover);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* ── Tables ── */

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    padding: 10px 14px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tr:hover td {
    background: var(--bg-hover);
}

.data-table .empty {
    text-align: center;
    color: var(--text-muted);
    padding: 32px;
}

.actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.inline-form {
    display: inline;
}

/* ── Badges ── */

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: rgba(0, 184, 148, 0.15);
    color: var(--success);
}

.badge-danger {
    background: rgba(225, 112, 85, 0.15);
    color: var(--danger);
}

.badge-type {
    background: var(--accent-glow);
    color: var(--accent-hover);
}

/* ── Alerts ── */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: rgba(0, 184, 148, 0.12);
    color: var(--success);
    border: 1px solid rgba(0, 184, 148, 0.25);
}

.alert-error {
    background: rgba(225, 112, 85, 0.12);
    color: var(--danger);
    border: 1px solid rgba(225, 112, 85, 0.25);
}

/* ── Info lists ── */

.info-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 16px;
    font-size: 14px;
}

.info-list dt {
    color: var(--text-secondary);
}

.api-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.api-list code {
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--accent-hover);
}

.steps-list {
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.steps-list li {
    margin-bottom: 6px;
}

.text-muted {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.empty-state {
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
}

/* ── Assets ── */

.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.asset-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.asset-preview {
    aspect-ratio: 1;
    background: #0a0a0a;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.asset-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
}

.asset-info {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.asset-name {
    font-size: 12px;
    font-weight: 500;
    word-break: break-all;
}

.asset-meta {
    font-size: 11px;
    color: var(--text-muted);
}

.asset-item form {
    padding: 0 12px 12px;
}

/* ── Sounds ── */

.sound-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sound-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.sound-player {
    flex: 1;
    min-width: 200px;
}

.sound-player audio {
    width: 100%;
    height: 36px;
}

.sound-info {
    display: flex;
    flex-direction: column;
    min-width: 140px;
}

/* ── Responsive sidebar ── */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .main {
        margin-left: 0;
    }

    .content {
        padding: 16px;
    }

    .editor-layout {
        grid-template-columns: 1fr;
    }
}

/* ── Gamer Dashboard v2 ── */

.stats-gamer .stat-card {
    position: relative;
    overflow: hidden;
}

.stats-gamer .stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.glow-purple { border-color: rgba(108, 92, 231, 0.4); }
.glow-blue { border-color: rgba(52, 120, 246, 0.4); }
.glow-green { border-color: rgba(0, 184, 148, 0.4); }
.glow-orange { border-color: rgba(253, 203, 110, 0.4); }
.glow-cyan { border-color: rgba(0, 206, 201, 0.4); }

.card-gamer {
    background: linear-gradient(145deg, var(--bg-secondary), #151520);
    border-color: rgba(108, 92, 231, 0.2);
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

/* ── 3D Editor Layout ── */

.editor-layout {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 24px;
    align-items: start;
}

.editor-layout-wide {
    grid-template-columns: 1fr 480px;
}

.editor-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-panel {
    position: sticky;
    top: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-card {
    border-color: rgba(108, 92, 231, 0.35);
    box-shadow: 0 0 30px rgba(108, 92, 231, 0.08);
}

.viewport-3d {
    width: 100%;
    height: 320px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: radial-gradient(ellipse at center, #1a1a2e, #0a0a12);
    border: 1px solid var(--border);
}

.viewport-3d-lg {
    height: 400px;
}

.viewport-audio {
    min-height: 120px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.preview-label {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
}

.card-inner {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 16px;
    border: 1px solid var(--border);
}

.card-inner h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--accent-hover);
}

/* ── Asset picker ── */

.asset-list-compact {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
    max-height: 320px;
    overflow-y: auto;
}

.asset-pick {
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    font-size: 10px;
    transition: all 0.15s;
}

.asset-pick img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    image-rendering: pixelated;
    border-radius: 4px;
}

.asset-pick.active,
.asset-pick:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--text-primary);
}

/* ── World Editor ── */

.we-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    font-size: 13px;
}

.we-toolbar input[type="number"] {
    width: 60px;
    padding: 6px;
}

.we-grid {
    display: grid;
    gap: 2px;
    background: var(--border);
    padding: 2px;
    border-radius: var(--radius-sm);
    max-width: 100%;
    overflow: auto;
}

.we-cell {
    aspect-ratio: 1;
    min-width: 18px;
    background: #1a1a28;
    cursor: crosshair;
    transition: background 0.1s;
}

.we-cell:hover {
    background: rgba(108, 92, 231, 0.3);
}

.we-cell.we-filled {
    background: #4a9c2d;
    box-shadow: inset 0 0 4px rgba(0,0,0,0.4);
}

.world-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.world-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    gap: 12px;
}

.world-item small {
    display: block;
    color: var(--text-muted);
    font-size: 11px;
}

.sound-item-interactive {
    cursor: pointer;
    transition: border-color 0.15s;
}

.sound-item-interactive.active {
    border-color: var(--accent);
}

.sound-viz {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.sound-viz-canvas {
    border-radius: var(--radius-sm);
    width: 100%;
}

.sound-viz-bars {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    height: 50px;
}

.viz-bar {
    width: 12px;
    background: linear-gradient(to top, var(--accent), #a29bfe);
    border-radius: 2px;
    height: 4px;
    transition: height 0.08s;
}

.sidebar-brand {
    background: linear-gradient(135deg, rgba(108,92,231,0.08), transparent);
}

.topbar h1 {
    background: linear-gradient(90deg, var(--text-primary), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── World Generator ── */

.world-gen-header {
    margin-bottom: 24px;
}

.gen-card {
    margin-bottom: 12px;
}

.form-compact .form-row {
    gap: 10px;
}

.btn-glow {
    box-shadow: 0 0 20px rgba(108, 92, 231, 0.4);
}

.biome-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.biome-pill {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    background: color-mix(in srgb, var(--biome-color, #666) 20%, transparent);
    border: 1px solid color-mix(in srgb, var(--biome-color, #666) 50%, transparent);
    color: var(--text-secondary);
}

.viewport-3d-xl {
    height: 420px;
}

.time-controls {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.time-controls label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.time-controls input[type="range"] {
    width: 100%;
    margin-bottom: 10px;
    accent-color: var(--accent);
}

.time-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.json-preview {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: var(--radius-sm);
    max-height: 200px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.hidden-json {
    display: none;
}

.export-link {
    display: block;
    color: var(--accent-hover);
    font-size: 10px;
    margin-top: 2px;
}