/* ========================================
   MODERN DESIGN SYSTEM - GestGym
   Tema Blanco con Color Configurable
   ======================================== */

:root {
    /* COLOR PRINCIPAL CONFIGURABLE - Cambia este valor para cambiar todo el sistema */
    --primary-color: #10b981;
    --primary-dark: #059669;
    --primary-light: #34d399;

    /* Colores derivados del principal */
    --secondary-color: #0d9668;
    --accent-color: #6ee7b7;

    /* Colores de estado */
    --success-color: #10b981;
    --success-dark: #059669;
    --warning-color: #f59e0b;
    --warning-dark: #d97706;
    --danger-color: #ef4444;
    --danger-dark: #dc2626;
    --info-color: #3b82f6;
    --info-dark: #2563eb;

    /* Colores de fondo - TEMA BLANCO */
    --dark-bg: #ffffff;
    --dark-secondary: #f8fafc;
    --dark-tertiary: #f1f5f9;
    --light-bg: #ffffff;
    --card-bg: #ffffff;
    --sidebar-bg: #ffffff;

    /* Colores de texto */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;

    /* Bordes y separadores */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    /* Sombras */
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 30px 80px rgba(0, 0, 0, 0.15);

    /* Border radius */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transiciones */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* ========================================
   TIPOGRAFÍA
   ======================================== */

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background: #f8fafc;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

/* ========================================
   CARDS MODERNAS
   ======================================== */

.card-modern {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    overflow: hidden;
}

.card-modern:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-modern-header {
    background: var(--primary-color);
    color: white;
    padding: 1.5rem;
    border-bottom: none;
    font-weight: 700;
    font-size: 1.125rem;
}

.card-modern-body {
    padding: 1.5rem;
}

/* Cards con acento de color */
.card-accent-top {
    position: relative;
}

.card-accent-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

/* ========================================
   BOTONES MODERNOS
   ======================================== */

.btn-modern {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: var(--transition-base);
    border: none;
    box-shadow: var(--shadow-sm);
    letter-spacing: 0.3px;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-modern:active {
    transform: translateY(0);
}

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

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

.btn-modern-success {
    background: var(--primary-color);
    color: white;
}

.btn-modern-success:hover {
    background: var(--primary-dark);
}

.btn-modern-warning {
    background: var(--warning-color);
    color: white;
}

.btn-modern-warning:hover {
    background: var(--warning-dark);
}

.btn-modern-danger {
    background: var(--danger-color);
    color: white;
}

.btn-modern-danger:hover {
    background: var(--danger-dark);
}

.btn-modern-info {
    background: var(--primary-color);
    color: white;
}

.btn-modern-info:hover {
    background: var(--primary-dark);
}

.btn-modern-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-modern-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

/* ========================================
   INPUTS MODERNOS
   ======================================== */

.form-control-modern,
.form-select-modern {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: var(--transition-base);
    background: var(--light-bg);
    font-size: 0.9375rem;
}

.form-control-modern:focus,
.form-select-modern:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--card-bg);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-label-modern {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Input con icono */
.input-group-modern {
    position: relative;
}

.input-group-modern .form-control-modern {
    padding-left: 3rem;
}

.input-group-modern .input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.125rem;
    pointer-events: none;
}

.input-group-modern .form-control-modern:focus ~ .input-icon {
    color: var(--primary-color);
}

/* ========================================
   BADGES Y PILLS
   ======================================== */

.badge-modern {
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-modern-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.badge-modern-success {
    background: linear-gradient(135deg, var(--success-color), var(--success-dark));
    color: white;
}

.badge-modern-warning {
    background: linear-gradient(135deg, var(--warning-color), var(--warning-dark));
    color: white;
}

.badge-modern-danger {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-dark));
    color: white;
}

/* ========================================
   TABLAS MODERNAS
   ======================================== */

.table-modern {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-modern thead {
    background: var(--primary-color);
    color: white;
}

.table-modern thead th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 1rem;
    border: none;
}

.table-modern tbody tr {
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--border-light);
}

.table-modern tbody tr:hover {
    background: var(--light-bg);
}

.table-modern tbody td {
    padding: 1rem;
    vertical-align: middle;
}

/* DataTables con tema verde */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
    border-radius: var(--radius-sm);
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--primary-light) !important;
    color: white !important;
    border-color: var(--primary-light) !important;
}

table.dataTable thead th {
    background: var(--primary-color) !important;
    color: white !important;
}

table.dataTable.stripe tbody tr.odd,
table.dataTable.display tbody tr.odd {
    background-color: #f9fafb;
}

table.dataTable.hover tbody tr:hover,
table.dataTable.display tbody tr:hover {
    background-color: #f0fdf4 !important;
}

/* Botones de DataTable - VERDE */
.dt-button,
.dt-buttons .btn,
.dataTables_wrapper .btn,
button.dt-button {
    background: var(--primary-color) !important;
    color: white !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.5rem 1rem !important;
    font-weight: 600 !important;
    transition: var(--transition-base) !important;
}

.dt-button:hover,
.dt-buttons .btn:hover,
button.dt-button:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3) !important;
}

/* Títulos con acento verde */
.page-header h1,
.page-header h2,
.page-header h3,
.card-header h1,
.card-header h2,
.card-header h3,
.card-header h4,
.card-header h5,
.card-header h6 {
    color: var(--primary-color) !important;
}

.section-title {
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* Badges verde */
.badge-primary,
.badge-success,
.badge-info {
    background: var(--primary-color) !important;
    color: white !important;
}

.badge-modern-primary,
.badge-modern-success {
    background: var(--primary-color) !important;
}

/* ========================================
   ALERTS MODERNAS
   ======================================== */

.alert-modern {
    border-radius: var(--radius-md);
    border: none;
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.alert-modern-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-modern-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

.alert-modern-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.alert-modern-info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border-left: 4px solid var(--info-color);
}

/* ========================================
   STATS CARDS
   ======================================== */

.stat-card-modern {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.stat-card-modern:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.stat-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.stat-card-modern.primary::before {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.stat-card-modern.success::before {
    background: linear-gradient(90deg, var(--success-color), var(--success-dark));
}

.stat-card-modern.warning::before {
    background: linear-gradient(90deg, var(--warning-color), var(--warning-dark));
}

.stat-card-modern.danger::before {
    background: linear-gradient(90deg, var(--danger-color), var(--danger-dark));
}

.stat-icon-modern {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1rem;
}

.stat-icon-modern.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.stat-icon-modern.success {
    background: linear-gradient(135deg, var(--success-color), var(--success-dark));
}

.stat-icon-modern.warning {
    background: linear-gradient(135deg, var(--warning-color), var(--warning-dark));
}

.stat-icon-modern.danger {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-dark));
}

.stat-value-modern {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.5rem 0;
}

.stat-label-modern {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================================
   UTILIDADES
   ======================================== */

.gradient-bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.gradient-text-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ========================================
   ANIMACIONES
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 15px rgba(102, 126, 234, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(102, 126, 234, 0.8);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease-out;
}

.animate-slideIn {
    animation: slideIn 0.6s ease-out;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .card-modern-body {
        padding: 1rem;
    }

    .stat-card-modern {
        padding: 1rem;
    }

    .btn-modern {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}