:root {
    /* Paleta de colores Desert Dental */
    --dd-primary: #0077b6; /* Azul fuerte dental */
    --dd-primary-light: #00b4d8; /* Azul claro */
    --dd-primary-dark: #023e8a;
    --dd-surface: #ffffff;
    --dd-bg: #f8f9fa;
    --dd-text: #2b2d42;
    --dd-text-muted: #6c757d;
    
    /* Estatus Colors */
    --status-agendada: #10b981; /* Esmeralda suave */
    --status-noconcretada: #ef4444; /* Rojo suave */
    --status-pendiente: #f59e0b; /* Ambar */
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dd-bg);
    color: var(--dd-text);
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dd-primary-dark);
}

/* Utilidades Nav */
.bg-dental {
    background-color: var(--dd-primary) !important;
    background: linear-gradient(135deg, var(--dd-primary) 0%, var(--dd-primary-dark) 100%);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Tarjetas */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    background-color: var(--dd-surface);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-header {
    background-color: var(--dd-surface);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    border-top-left-radius: 12px !important;
    border-top-right-radius: 12px !important;
    padding: 1.25rem 1.5rem;
}

/* Botones */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--dd-primary);
    border-color: var(--dd-primary);
}

.btn-primary:hover {
    background-color: var(--dd-primary-dark);
    border-color: var(--dd-primary-dark);
    transform: translateY(-1px);
}

/* Tablas */
.table {
    vertical-align: middle;
}

.table th {
    font-weight: 600;
    color: var(--dd-text-muted);
    border-bottom-width: 2px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table td {
    padding: 1rem 0.75rem;
}

/* Badges de Estatus */
.badge-status {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.85em;
}

.badge-agendada {
    background-color: rgba(16, 185, 129, 0.15);
    color: #065f46;
}

.badge-noconcretada {
    background-color: rgba(239, 68, 68, 0.15);
    color: #991b1b;
}

.badge-pendiente {
    background-color: rgba(245, 158, 11, 0.15);
    color: #92400e;
}

/* Inputs de Formulario */
.form-control, .form-select {
    border-radius: 8px;
    padding: 0.6rem 1rem;
    border: 1px solid #dee2e6;
}

.form-control:focus, .form-select:focus {
    border-color: var(--dd-primary-light);
    box-shadow: 0 0 0 0.25rem rgba(0, 180, 216, 0.25);
}

/* Utilidades AJAX Spinner */
.spinner-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 12px;
    z-index: 10;
    display: none;
}

.card.loading .spinner-overlay {
    display: flex;
}