/* ============================================================
   DASHBOARD KPI - SISTEMA NAVY + GOLD
   ============================================================ */

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

:root {
    --radius: 0.875rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.5rem;
    
    --background: oklch(0.99 0.005 90);
    --foreground: oklch(0.18 0.04 260);
    --card: oklch(1 0 0);
    --card-foreground: oklch(0.18 0.04 260);
    
    --navy: oklch(0.22 0.06 265);
    --navy-deep: oklch(0.14 0.05 265);
    --navy-light: oklch(0.35 0.08 265);
    --primary: oklch(0.22 0.06 265);
    --primary-foreground: oklch(0.98 0.005 90);
    
    --gold: oklch(0.82 0.16 85);
    --gold-dark: oklch(0.70 0.14 85);
    --gold-light: oklch(0.88 0.14 88);
    --gold-foreground: oklch(0.18 0.04 260);
    
    --muted: oklch(0.96 0.01 250);
    --muted-foreground: oklch(0.45 0.03 260);
    --accent: oklch(0.82 0.16 85);
    --border: oklch(0.9 0.012 260);
    --input: oklch(0.95 0.005 90);
    --ring: oklch(0.82 0.16 85);
    
    --gradient-hero: linear-gradient(135deg, oklch(0.14 0.05 265) 0%, oklch(0.22 0.06 265) 55%, oklch(0.32 0.09 270) 100%);
    --gradient-gold: linear-gradient(135deg, oklch(0.88 0.14 88) 0%, oklch(0.78 0.17 75) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.98), rgba(248,250,252,0.98));
    
    --shadow-elegant: 0 25px 60px -25px color-mix(in oklab, var(--navy-deep) 45%, transparent);
    --shadow-gold: 0 20px 50px -20px color-mix(in oklab, var(--gold) 55%, transparent);
    --shadow-card: 0 10px 30px -15px color-mix(in oklab, var(--navy-deep) 25%, transparent);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    
    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'DM Mono', monospace;
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);
    --cyan: #06b6d4;
    --cyan-bg: rgba(6, 182, 212, 0.12);
}

body {
    background: radial-gradient(circle at 10% 20%, var(--navy) 0%, var(--navy-deep) 100%);
    color: var(--foreground);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 72px;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

/* Contenedor principal */
.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    background: var(--gradient-card);
    border-radius: var(--radius-2xl);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
}

.brand-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--navy);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-meta {
    font-size: 0.8rem;
    color: var(--muted-foreground);
}

/* Section label */
.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--gold);
    margin: 1.5rem 0 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--gold), transparent);
}

/* Grids */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 1000px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .grid-4 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
}

/* Tarjetas */
.card {
    background: var(--gradient-card);
    border-radius: var(--radius-2xl);
    padding: 1.25rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-3px);
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
}

.card-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--navy);
    margin-bottom: 0.25rem;
}

.kpi-sub {
    font-size: 0.65rem;
    color: var(--muted-foreground);
    margin-bottom: 0.75rem;
}

/* Barras */
.bar-wrap {
    background: var(--muted);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin: 0.75rem 0;
}

.bar-fill {
    height: 100%;
    width: 0%;
    background: var(--info);
    border-radius: 10px;
    transition: width 0.5s ease;
}

.compare-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--muted-foreground);
    margin-top: 0.5rem;
}

.kpi-trend {
    font-size: 0.65rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

/* Donuts */
.donut-wrap {
    display: flex;
    justify-content: center;
    margin: 0.5rem 0;
}

.brecha-text {
    text-align: center;
    font-size: 0.7rem;
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--muted-foreground);
}

/* TCO breakdown */
.tco-breakdown {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tco-item {
    background: var(--muted);
    border-radius: var(--radius);
    padding: 0.5rem;
    text-align: center;
}

.tco-item-label {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--muted-foreground);
    text-transform: uppercase;
}

.tco-item-val {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--navy);
}

.stat-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
}

.stat-key {
    color: var(--muted-foreground);
}

.stat-val {
    font-weight: 700;
    color: var(--navy);
}

/* Botón flotante */
.btn-back-floating {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    color: white;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 9999px;
    font-size: 1.25rem;
    box-shadow: var(--shadow-card);
    transition: all 0.2s;
    z-index: 40;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-back-floating:hover {
    transform: scale(1.1);
    background: var(--gold);
    color: var(--navy);
    border-color: var(--gold);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #e2e8f0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gold);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-dark);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding-top: 64px;
    }
    
    .dashboard-container {
        padding: 1rem;
    }
    
    .header {
        flex-direction: column;
        text-align: center;
    }
    
    .brand-title {
        font-size: 1.1rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .kpi-value {
        font-size: 1.2rem;
    }
}