:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --secondary: #059669;
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --text: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --destructive: #DC2626;
    --warning: #D97706;
    --success: #059669;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);

    --day-lunes: #EFF6FF;
    --day-martes: #FFF7ED;
    --day-miercoles: #F0FDF4;
    --day-jueves: #FDF4FF;
    --day-viernes: #FEF2F2;

    --day-lunes-border: #BFDBFE;
    --day-martes-border: #FED7AA;
    --day-miercoles-border: #BBF7D0;
    --day-jueves-border: #E9D5FF;
    --day-viernes-border: #FECACA;
}

[data-theme="dark"] {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --secondary: #10B981;
    --bg: #0F172A;
    --surface: #1E293B;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --border: #334155;
    --destructive: #EF4444;
    --warning: #F59E0B;
    --success: #10B981;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);

    --day-lunes: #1E293B;
    --day-martes: #1E293B;
    --day-miercoles: #1E293B;
    --day-jueves: #1E293B;
    --day-viernes: #1E293B;

    --day-lunes-border: #1D4ED8;
    --day-martes-border: #C2410C;
    --day-miercoles-border: #15803D;
    --day-jueves-border: #7C3AED;
    --day-viernes-border: #DC2626;
}

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

html, body { overflow-x: hidden; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-weight: 600; line-height: 1.3; }
h1 { font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-success { background: var(--secondary); color: white; }
.btn-danger { background: var(--destructive); color: white; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: 4px 10px; font-size: 13px; }

.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 24px;
}

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 4px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
th {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    background: var(--bg);
}
tr:hover td { background: var(--bg); }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-danger { background: #FEE2E2; color: #991B1B; }
.badge-info { background: #DBEAFE; color: #1E40AF; }
.badge-category {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    color: white;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.alert-warning { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.pagination {
    display: flex;
    gap: 4px;
    margin-top: 16px;
    justify-content: center;
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-size: 13px;
}
.pagination .active { background: var(--primary); color: white; border-color: var(--primary); }

.filters {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}
.filters select, .filters input {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    background: var(--surface);
    color: var(--text);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.kpi-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.kpi-card .value { font-size: 28px; font-weight: 700; color: var(--primary); }
.kpi-card .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    transition: background 0.2s;
}
.theme-toggle:hover { background: rgba(255,255,255,0.1); }
.theme-toggle-icon { font-size: 16px; }