:root {
    --bg: #0d1117;
    --surface: #161b22;
    --surface-accent: #21262d;
    --primary: #58a6ff;
    --success: #3fb950;
    --danger: #f85149;
    --warning: #d29922;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --glass: rgba(22, 27, 34, 0.75);
}

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

body { 
    font-family: 'Outfit', sans-serif; 
    background: var(--bg); 
    color: var(--text-main); 
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar Navigation */
.sidebar {
    background: var(--surface);
    border-right: 1px solid var(--surface-accent);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    z-index: 100;
    overflow-y: auto;
}

.brand h1 { font-size: 1.6rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 0.8rem; letter-spacing: -1px; }

.filter-group { display: flex; flex-direction: column; gap: 0.8rem; }
.filter-group label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 2px; font-weight: 600; }

select {
    background: var(--surface-accent);
    border: 1px solid #30363d;
    color: var(--text-main);
    padding: 14px;
    border-radius: 10px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    width: 100%;
    transition: 0.2s;
}
select:hover { border-color: var(--primary); }

.status-badge {
    margin-top: auto;
    background: rgba(63, 185, 80, 0.1);
    color: var(--success);
    padding: 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    text-align: center;
    border: 1px solid rgba(63, 185, 80, 0.2);
}

/* Main Workspace */
.main-workspace {
    padding: 2.5rem 3rem;
    overflow-y: auto;
    overflow-x: hidden;
    background: radial-gradient(circle at top right, #161b22, #0d1117);
}

.header { margin-bottom: 3rem; display: flex; justify-content: space-between; align-items: flex-end; }
.header h2 { font-size: 2.5rem; font-weight: 700; letter-spacing: -1px; }
.header p { color: var(--text-muted); margin-top: 5px; font-size: 1.1rem; }

/* KPI Cards */
.kpi-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); 
    gap: 1.5rem; 
    margin-bottom: 3rem; 
}

.card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--surface-accent);
    padding: 1.8rem;
    border-radius: 20px;
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 160px;
}
.card:hover { transform: translateY(-8px); border-color: var(--primary); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }

.card-label { color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px; font-weight: 600; }
.card-value { font-size: 2rem; font-weight: 800; font-family: 'JetBrains Mono'; color: #fff; }
.card-footer { font-size: 0.8rem; margin-top: 15px; color: var(--text-muted); line-height: 1.4; border-top: 1px solid var(--surface-accent); padding-top: 12px; }

/* Charts */
.chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.chart-box {
    background: var(--surface);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid var(--surface-accent);
    min-height: 500px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

/* Insights Panel */
.insights-section {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}
.insight-card {
    background: var(--glass);
    border: 1px solid var(--surface-accent);
    border-radius: 16px;
    padding: 1.5rem;
}
.insight-card h3 { 
    color: var(--primary); 
    font-size: 0.8rem; 
    text-transform: uppercase; 
    letter-spacing: 2px; 
    margin-bottom: 1rem; 
    display: flex;
    align-items: center;
    gap: 8px;
}
.insight-card p { font-size: 1rem; line-height: 1.6; color: var(--text-main); }

@media (max-width: 1024px) { 
    .chart-row { grid-template-columns: 1fr; } 
    body { grid-template-columns: 1fr; overflow-y: auto; height: auto; }
    .sidebar { border-right: none; height: auto; padding: 1.5rem; }
    .main-workspace { padding: 1.5rem; }
}