/* ============================================
   0080 Data Dashboard - Style
   深色仪表盘-深蓝黑 + 数据绿 + 警示橙
   Grafana/DataDog 监控仪表盘美学
   ============================================ */

/* --- CSS Variables --- */
:root {
    --db-bg: #0f1923;
    --db-bg-secondary: #131f2d;
    --db-bg-card: #172231;
    --db-border: #1e2d3d;
    --db-green: #00e676;
    --db-green-dim: rgba(0,230,118,0.15);
    --db-orange: #ff9100;
    --db-orange-dim: rgba(255,145,0,0.15);
    --db-text-primary: #e0e6ed;
    --db-text-secondary: #8899aa;
    --db-text-muted: #5a6d7e;
    --db-red: #ff5252;
    --db-blue: #448aff;
    --db-purple: #b388ff;
    --db-grid: rgba(30,45,61,0.6);
    --db-font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
    --db-radius: 6px;
    --db-radius-lg: 10px;
    --db-shadow-card: 0 2px 8px rgba(0,0,0,0.3), 0 0 0 1px var(--db-border);
    --db-transition: 0.2s cubic-bezier(0.4,0,0.2,1);
    --db-nav-h: 60px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

.dashboard-body {
    background-color: var(--db-bg);
    color: var(--db-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        linear-gradient(var(--db-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--db-grid) 1px, transparent 1px);
    background-size: 32px 32px;
}

/* --- Navigation --- */
.dashboard-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--db-bg-secondary);
    border-bottom: 2px solid var(--db-border);
    height: var(--db-nav-h);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--db-text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
}

.brand-icon {
    color: var(--db-green);
    font-size: 1.3rem;
    animation: pulse-green 2s ease-in-out infinite;
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.brand-dot { color: var(--db-green); }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    text-decoration: none;
    color: var(--db-text-secondary);
    border-radius: var(--db-radius);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    transition: var(--db-transition);
}

.nav-link:hover {
    color: var(--db-text-primary);
    background: rgba(255,255,255,0.04);
}

.nav-link.active {
    color: var(--db-green);
    background: var(--db-green-dim);
}

.nav-indicator {
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
    background: var(--db-green);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--db-text-primary);
    border-radius: 1px;
    transition: var(--db-transition);
}

/* --- Main Content --- */
.dashboard-main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 20px 40px;
}

/* --- Hero Section --- */
.hero-section {
    padding: 48px 0 40px;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: var(--db-green-dim);
    color: var(--db-green);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--db-font-mono);
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    border: 1px solid rgba(0,230,118,0.25);
}

.hero-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: var(--db-green);
    border-radius: 50%;
    animation: pulse-green 1.5s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero-title .highlight {
    color: var(--db-green);
    position: relative;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--db-text-secondary);
    max-width: 640px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--db-green);
    color: #0f1923;
    font-weight: 700;
    border-radius: var(--db-radius);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--db-transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #00c853;
    box-shadow: 0 0 24px rgba(0,230,118,0.3);
    transform: translateY(-1px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    color: var(--db-text-primary);
    font-weight: 600;
    border-radius: var(--db-radius);
    text-decoration: none;
    font-size: 0.95rem;
    border: 1px solid var(--db-border);
    transition: var(--db-transition);
    cursor: pointer;
}

.btn-outline:hover {
    border-color: var(--db-green);
    color: var(--db-green);
    background: var(--db-green-dim);
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-label {
    display: inline-block;
    font-family: var(--db-font-mono);
    font-size: 0.75rem;
    color: var(--db-green);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 4px 12px;
    background: var(--db-green-dim);
    border-radius: 3px;
    margin-bottom: 12px;
    border: 1px solid rgba(0,230,118,0.2);
}

.section-title {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.section-desc {
    color: var(--db-text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Features Grid (Metrics) --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 60px;
}

.metric-card {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 20px 24px;
    transition: var(--db-transition);
    position: relative;
    overflow: hidden;
}

.metric-card:hover {
    border-color: rgba(0,230,118,0.3);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    transform: translateY(-2px);
}

.metric-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.metric-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--db-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.metric-card-icon.green { background: var(--db-green-dim); color: var(--db-green); }
.metric-card-icon.orange { background: var(--db-orange-dim); color: var(--db-orange); }
.metric-card-icon.blue { background: rgba(68,138,255,0.15); color: var(--db-blue); }
.metric-card-icon.purple { background: rgba(179,136,255,0.15); color: var(--db-purple); }

.metric-trend {
    font-family: var(--db-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

.metric-trend.up { color: var(--db-green); background: var(--db-green-dim); }
.metric-trend.stable { color: var(--db-blue); background: rgba(68,138,255,0.12); }

.metric-card-value {
    font-family: var(--db-font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--db-text-primary);
    margin-bottom: 4px;
    letter-spacing: -1px;
}

.metric-card-label {
    font-size: 0.85rem;
    color: var(--db-text-secondary);
    margin-bottom: 12px;
}

.metric-sparkline {
    height: 36px;
    position: relative;
    overflow: hidden;
}

.metric-sparkline::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        linear-gradient(90deg,
            transparent 0%,
            var(--db-green-dim) 20%,
            transparent 40%,
            var(--db-green-dim) 60%,
            transparent 80%,
            var(--db-green-dim) 100%
        );
    opacity: 0.5;
    clip-path: polygon(0% 80%, 10% 65%, 20% 70%, 30% 40%, 40% 55%, 50% 35%, 60% 50%, 70% 25%, 80% 45%, 90% 20%, 100% 30%, 100% 100%, 0% 100%);
}

/* --- Stats Section --- */
.stats-section {
    margin-bottom: 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.stat-cell {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius);
    padding: 20px;
    text-align: center;
    transition: var(--db-transition);
}

.stat-cell:hover {
    border-color: var(--db-green);
}

.stat-number {
    font-family: var(--db-font-mono);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--db-green);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--db-text-secondary);
}

.stat-sub {
    font-size: 0.7rem;
    color: var(--db-text-muted);
    font-family: var(--db-font-mono);
    margin-top: 2px;
}

/* --- Testimonials --- */
.testimonials-section {
    margin-bottom: 60px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}

.testimonial-card {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 24px;
    position: relative;
    transition: var(--db-transition);
}

.testimonial-card:hover {
    border-color: rgba(68,138,255,0.3);
}

.testimonial-quote {
    font-size: 0.95rem;
    color: var(--db-text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
}

.testimonial-quote::before {
    content: '❝';
    color: var(--db-green);
    font-size: 1.4rem;
    margin-right: 4px;
    font-style: normal;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--db-border);
    padding-top: 14px;
}

.testimonial-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--db-green), var(--db-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    color: #fff;
}

.testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-role {
    font-size: 0.75rem;
    color: var(--db-text-muted);
    font-family: var(--db-font-mono);
}

.testimonial-rating {
    margin-left: auto;
    color: var(--db-orange);
    font-size: 0.85rem;
}

/* --- FAQ Section --- */
.faq-section {
    margin-bottom: 60px;
}

.faq-grid {
    display: grid;
    gap: 8px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius);
    overflow: hidden;
    transition: var(--db-transition);
}

.faq-item.active {
    border-color: var(--db-green);
}

.faq-question {
    width: 100%;
    padding: 16px 20px;
    background: none;
    border: none;
    color: var(--db-text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.faq-question i {
    color: var(--db-green);
    transition: transform 0.3s ease;
    font-size: 0.8rem;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer-inner {
    padding: 0 20px 16px;
    color: var(--db-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, rgba(0,230,118,0.08), rgba(68,138,255,0.08));
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 48px 32px;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--db-green), var(--db-blue), transparent);
}

.cta-title {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-desc {
    color: var(--db-text-secondary);
    margin-bottom: 24px;
    font-size: 1rem;
}

.cta-stats-row {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

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

.cta-stat-val {
    font-family: var(--db-font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--db-green);
}

.cta-stat-label {
    font-size: 0.8rem;
    color: var(--db-text-muted);
}

/* --- Club Page --- */
.club-hero {
    padding: 40px 0 30px;
    text-align: center;
}

.club-tier-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.club-tier-card {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: var(--db-transition);
    position: relative;
}

.club-tier-card:hover {
    transform: translateY(-4px);
    border-color: var(--db-green);
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

.club-tier-card.featured {
    border-color: var(--db-orange);
    background: linear-gradient(180deg, rgba(255,145,0,0.06), var(--db-bg-card));
}

.club-tier-card.featured::before {
    content: 'RECOMMENDED';
    position: absolute;
    top: 10px;
    right: 10px;
    font-family: var(--db-font-mono);
    font-size: 0.6rem;
    color: var(--db-orange);
    padding: 2px 8px;
    border: 1px solid var(--db-orange);
    border-radius: 3px;
    letter-spacing: 1px;
}

.club-tier-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-family: var(--db-font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.club-tier-badge.gold { background: rgba(255,145,0,0.2); color: var(--db-orange); border: 1px solid rgba(255,145,0,0.3); }
.club-tier-badge.platinum { background: rgba(179,136,255,0.2); color: var(--db-purple); border: 1px solid rgba(179,136,255,0.3); }
.club-tier-badge.diamond { background: rgba(68,138,255,0.2); color: var(--db-blue); border: 1px solid rgba(68,138,255,0.3); }

.club-tier-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.club-tier-desc {
    color: var(--db-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.club-tier-features {
    list-style: none;
    text-align: left;
    margin-bottom: 20px;
}

.club-tier-features li {
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--db-text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--db-border);
}

.club-tier-features li i {
    color: var(--db-green);
    font-size: 0.7rem;
}

.club-tier-metrics {
    display: flex;
    justify-content: space-around;
    padding: 12px 0;
    border-top: 1px solid var(--db-border);
    border-bottom: 1px solid var(--db-border);
    margin-bottom: 16px;
}

.club-tier-metric {
    text-align: center;
}

.club-tier-metric-val {
    font-family: var(--db-font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--db-text-primary);
}

.club-tier-metric-label {
    font-size: 0.7rem;
    color: var(--db-text-muted);
}

/* --- Process / Steps --- */
.process-section {
    margin-bottom: 50px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    position: relative;
}

.process-step {
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 24px;
    text-align: center;
    position: relative;
    transition: var(--db-transition);
}

.process-step:hover {
    border-color: var(--db-green);
}

.process-step-num {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--db-green-dim);
    color: var(--db-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--db-font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 auto 14px;
    border: 2px solid rgba(0,230,118,0.3);
}

.process-step-title {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 8px;
}

.process-step-desc {
    font-size: 0.85rem;
    color: var(--db-text-secondary);
    line-height: 1.6;
}

/* --- Download Page --- */
.download-hero {
    padding: 40px 0 30px;
    text-align: center;
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.platform-tab {
    padding: 10px 24px;
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius);
    color: var(--db-text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--db-transition);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.platform-tab:hover {
    border-color: var(--db-text-muted);
    color: var(--db-text-primary);
}

.platform-tab.active {
    background: var(--db-green-dim);
    border-color: var(--db-green);
    color: var(--db-green);
}

.platform-panel {
    display: none;
    background: var(--db-bg-card);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-lg);
    padding: 32px 28px;
    margin-bottom: 40px;
}

.platform-panel.active {
    display: block;
    animation: fadeInUp 0.3s ease;
}

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

.download-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.download-step {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.download-step-index {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--db-green-dim);
    color: var(--db-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--db-font-mono);
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
    border: 1px solid rgba(0,230,118,0.25);
}

.download-step-text h5 { font-size: 0.9rem; font-weight: 600; margin-bottom: 2px; }
.download-step-text p { font-size: 0.8rem; color: var(--db-text-secondary); }

.qr-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
    padding: 24px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--db-radius);
}

.qr-code-placeholder {
    width: 140px;
    height: 140px;
    background: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.qr-pattern {
    width: 100px;
    height: 100px;
    background:
        linear-gradient(#000 2px, transparent 2px) 0 0 / 10px 10px,
        linear-gradient(90deg, #000 2px, transparent 2px) 0 0 / 10px 10px;
    background-color: #fff;
}

.qr-info { text-align: left; }
.qr-info h5 { font-weight: 600; margin-bottom: 6px; }
.qr-info p { font-size: 0.85rem; color: var(--db-text-secondary); line-height: 1.7; }

.sys-req-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.sys-req-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--db-radius);
    font-size: 0.85rem;
}

.sys-req-item i {
    color: var(--db-green);
    width: 20px;
    text-align: center;
}

.sys-req-item strong {
    color: var(--db-text-primary);
    margin-right: 6px;
}

.sys-req-item span {
    color: var(--db-text-secondary);
}

/* --- Footer --- */
.dashboard-footer {
    background: var(--db-bg-secondary);
    border-top: 2px solid var(--db-border);
    padding: 48px 20px 24px;
}

.footer-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-heading {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--db-text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--db-text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--db-font-mono);
    font-size: 0.75rem;
    color: var(--db-green);
    padding: 4px 12px;
    background: var(--db-green-dim);
    border-radius: 12px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.status-online {
    background: var(--db-green);
    box-shadow: 0 0 6px var(--db-green);
    animation: pulse-green 1.5s ease-in-out infinite;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    padding: 5px 0;
    font-size: 0.85rem;
    color: var(--db-text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a {
    color: var(--db-text-secondary);
    text-decoration: none;
    transition: var(--db-transition);
}

.footer-links a:hover { color: var(--db-green); }

.footer-stats-mini {
    display: flex;
    gap: 20px;
}

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

.footer-stat-val {
    font-family: var(--db-font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--db-green);
    display: block;
}

.footer-stat-label {
    font-size: 0.7rem;
    color: var(--db-text-muted);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid var(--db-border);
    text-align: center;
    font-size: 0.8rem;
    color: var(--db-text-muted);
}

/* --- Animations --- */
@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: var(--db-nav-h);
        left: 0;
        right: 0;
        background: var(--db-bg-secondary);
        flex-direction: column;
        padding: 12px;
        border-bottom: 2px solid var(--db-border);
        gap: 2px;
    }

    .nav-menu.show { display: flex; }

    .nav-link {
        width: 100%;
        padding: 12px 16px;
    }

    .hero-section { padding: 32px 0 24px; }

    .metric-card { padding: 16px 18px; }
    .metric-card-value { font-size: 1.6rem; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .cta-stats-row { gap: 20px; }

    .footer-grid { grid-template-columns: 1fr 1fr; }

    .qr-section { flex-direction: column; text-align: center; }
    .qr-info { text-align: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.6rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; }

    .features-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .stat-number { font-size: 1.8rem; }

    .club-tier-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }

    .platform-tabs { flex-direction: column; align-items: center; }

    .download-steps { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; }
}