/* ========================================
   Mozigo - 烤机测试站 全局样式
   ======================================== */

:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #111827;
    --bg-card: #1a1f2e;
    --bg-card-hover: #232a3d;
    --border: #2a3344;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #00d9a3;
    --accent-glow: rgba(0, 217, 163, 0.3);
    --accent-dim: #00a87d;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --purple: #a855f7;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background grid pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 217, 163, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 163, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

/* ===== Navbar ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 20, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo .logo-icon {
    font-size: 28px;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.nav-logo img.logo-icon {
    width: 30px;
    height: 30px;
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.nav-logo .logo-text {
    background: linear-gradient(135deg, var(--accent), #50e3c2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-links a:hover {
    color: var(--accent);
    background: rgba(0, 217, 163, 0.08);
}

.nav-links a.active {
    color: var(--accent);
    background: rgba(0, 217, 163, 0.12);
}

/* ===== Layout ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.page-wrap {
    min-height: calc(100vh - 64px);
    position: relative;
    z-index: 1;
}

/* ===== Hero ===== */
.hero {
    text-align: center;
    padding: 80px 24px 60px;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 217, 163, 0.1);
    border: 1px solid rgba(0, 217, 163, 0.3);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, var(--accent) 50%, #50e3c2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    color: #0a0e14;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--accent-glow);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===== Feature Cards ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    padding: 40px 0 80px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
    flex-grow: 1;
}

.feature-tag {
    display: inline-block;
    background: rgba(0, 217, 163, 0.1);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    align-self: flex-start;
}

.feature-link {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding: 40px 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Test Page Layout ===== */
.test-header {
    padding: 40px 24px 24px;
    text-align: center;
}

.test-header h1 {
    font-size: 36px;
    margin-bottom: 8px;
}

.test-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.test-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    padding: 0 24px 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.test-canvas-area {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    min-height: 500px;
}

#gpuCanvas, #cpuCanvas {
    display: block;
    width: 100%;
    height: 100%;
}

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

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.panel h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== Metrics Display ===== */
.metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.metric {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 14px;
    text-align: center;
}

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.metric-value.danger { color: var(--danger); }
.metric-value.warning { color: var(--warning); }
.metric-value.info { color: var(--info); }
.metric-value.purple { color: var(--purple); }

.metric-unit {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
}

/* ===== Controls ===== */
.control-group {
    margin-bottom: 16px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.control-group select,
.control-group input[type="number"] {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.control-group select:focus,
.control-group input:focus {
    border-color: var(--accent);
}

input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 8px var(--accent-glow);
}

.range-value {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    margin-top: 4px;
}

/* ===== Progress Bar ===== */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #50e3c2);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

/* ===== Result Box ===== */
.result-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 16px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.result-row:last-child {
    border-bottom: none;
}

.result-row .label {
    color: var(--text-secondary);
    font-size: 14px;
}

.result-row .value {
    font-weight: 700;
    font-size: 16px;
    color: var(--accent);
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 4px;
    margin-bottom: 20px;
}

.tab {
    flex: 1;
    padding: 10px 16px;
    text-align: center;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
    font-family: inherit;
}

.tab.active {
    background: var(--accent);
    color: #0a0e14;
}

.tab:not(.active):hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* ===== Canvas Overlay ===== */
.canvas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    background: rgba(10, 14, 20, 0.6);
    backdrop-filter: blur(4px);
    z-index: 10;
}

.canvas-overlay.hidden {
    display: none;
}

.canvas-overlay .overlay-text {
    font-size: 20px;
    color: var(--text-secondary);
}

/* FPS overlay on canvas */
.fps-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(10, 14, 20, 0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 13px;
    font-family: 'Consolas', 'Courier New', monospace;
    z-index: 5;
    min-width: 140px;
}

.fps-overlay .fps-line {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin: 2px 0;
}

.fps-overlay .fps-label {
    color: var(--text-muted);
}

.fps-overlay .fps-val {
    color: var(--accent);
    font-weight: 700;
}

/* ===== Resources Page ===== */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    padding: 20px 0 60px;
}

.resource-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.resource-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.resource-card .res-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.resource-card .res-icon {
    font-size: 32px;
}

.resource-card h3 {
    font-size: 18px;
}

.resource-card .res-type {
    font-size: 12px;
    color: var(--accent);
    background: rgba(0, 217, 163, 0.1);
    padding: 2px 10px;
    border-radius: 10px;
}

.resource-card p {
    color: var(--text-secondary);
    font-size: 14px;
    flex-grow: 1;
}

.resource-card .res-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 0;
    border-top: 1px solid var(--border);
    margin-top: 4px;
}

.resource-card .res-link:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 40px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    position: relative;
    z-index: 1;
}

.footer a {
    color: var(--accent);
    text-decoration: none;
}

.footer .footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

/* ===== Warning Banner ===== */
.warning-banner {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 13px;
    color: var(--warning);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 16px;
}

/* ===== Animations ===== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .test-layout {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 40px;
    }

    .nav-links a span {
        display: none;
    }
}

@media (max-width: 600px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .stats-bar {
        gap: 24px;
    }

    .stat-number {
        font-size: 28px;
    }
}