/* Modern Glassmorphism & Dark Mode Design System for K-Culture Dashboard */
:root {
    --bg-dark: #090d16;
    --bg-card: rgba(18, 25, 41, 0.75);
    --bg-card-hover: rgba(26, 36, 59, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 255, 255, 0.16);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-purple: #a855f7;
    --accent-rose: #f43f5e;
    --accent-amber: #f59e0b;
    --accent-blue: #3b82f6;
    
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --shadow-main: 0 12px 32px -8px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 10% 10%, rgba(168, 85, 247, 0.15) 0px, transparent 40%),
        radial-gradient(at 90% 15%, rgba(6, 182, 212, 0.15) 0px, transparent 40%),
        radial-gradient(at 50% 85%, rgba(244, 63, 94, 0.12) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem 1.5rem;
}

.app-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-main);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-rose));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 4px 18px rgba(168, 85, 247, 0.4);
}

.header-brand h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(120deg, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.live-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.825rem;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-emerald);
    box-shadow: 0 0 10px var(--accent-emerald);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* Glass Panel */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-main);
}

/* Filter Section */
.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.filter-item label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.filter-select {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    outline: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-select:hover, .filter-select:focus {
    border-color: var(--accent-purple);
    background: rgba(30, 41, 59, 0.9);
}

.btn-reset {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s ease;
}

.btn-reset:hover {
    background: rgba(244, 63, 94, 0.15);
    color: #fecdd3;
    border-color: rgba(244, 63, 94, 0.4);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.kpi-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.35rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease;
    box-shadow: var(--shadow-main);
}

.kpi-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-highlight);
    background: var(--bg-card-hover);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.kpi-icon-box {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.kpi-icon-box.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.kpi-icon-box.purple { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }
.kpi-icon-box.rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }
.kpi-icon-box.emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.kpi-icon-box.amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }

.kpi-tag, .kpi-subtag {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.kpi-tag { background: rgba(255, 255, 255, 0.1); color: #fff; }
.kpi-subtag { background: rgba(148, 163, 184, 0.12); color: var(--text-secondary); }

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.kpi-value-container {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
    margin-bottom: 0.35rem;
}

.kpi-value {
    font-size: 1.95rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.kpi-unit {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.kpi-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.kpi-footer-glow {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.cyan-glow { background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent); }
.purple-glow { background: linear-gradient(90deg, transparent, var(--accent-purple), transparent); }

/* Charts Layout */
.charts-grid-two {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 1.5rem;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

.panel-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.panel-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.panel-badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.3rem 0.65rem;
    border-radius: 20px;
}

.cyan-badge { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.purple-badge { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); border: 1px solid rgba(168, 85, 247, 0.3); }
.rose-badge { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); border: 1px solid rgba(244, 63, 94, 0.3); }
.emerald-badge { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.3); }

.chart-wrapper {
    position: relative;
    height: 320px;
    width: 100%;
}

/* Strategy Tabs */
.tab-header {
    display: flex;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: #fff;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.35);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Insights Grid */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.25rem;
}

.insight-box {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    gap: 1rem;
}

.insight-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.insight-icon.purple { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }
.insight-icon.rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }
.insight-icon.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }

.insight-box h4 {
    font-size: 0.925rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: #fff;
}

.insight-box p {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Action Cards */
.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.action-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-top: 3px solid var(--accent-purple);
    padding: 1.35rem;
    border-radius: var(--radius-md);
}

.action-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.75rem;
}

.action-num {
    background: rgba(168, 85, 247, 0.2);
    color: var(--accent-purple);
    font-size: 0.8rem;
    font-weight: 800;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

.action-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
}

.action-card p {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Data Table */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.data-table th {
    background: rgba(15, 23, 42, 0.9);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.badge-tag {
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.78rem;
}

.badge-tag.red { background: rgba(244, 63, 94, 0.15); color: #fda4af; }
.badge-tag.purple { background: rgba(168, 85, 247, 0.15); color: #d8b4fe; }

/* Footer */
.dashboard-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 1rem 0;
}