/* ===== VARIABLES CSS ===== */
:root {
    /* Colores principales - Paleta NIN INSTITUTE */
    --primary-color: #1e3a8a; /* Azul oscuro principal */
    --secondary-color: #3b82f6; /* Azul claro secundario */
    --success-color: #32CD32; /* Verde lima brillante */
    --error-color: #dc2626; /* Rojo para errores */
    --warning-color: #f59e0b; /* Amarillo/naranja para advertencias */
    --info-color: #2563eb; /* Azul para información */
    
    /* Fondos - Grises de la paleta */
    --bg-primary: #1f2937; /* Gris oscuro */
    --bg-secondary: #374151; /* Gris medio oscuro */
    --bg-tertiary: #4b5563; /* Gris medio */
    
    /* Textos */
    --text-primary: #ffffff;
    --text-secondary: #9ca3af; /* Gris claro para texto secundario */
    --text-muted: #6b7280; /* Gris medio para texto muted */
    
    /* Bordes */
    --border-color: #4b5563; /* Gris medio para bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
}

/* ===== RESET Y BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

/* ===== LAYOUT PRINCIPAL ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4);
}

.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.header h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-2);
}

.header p {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

/* ===== FORMULARIOS ===== */
.form-container {
    background: var(--bg-secondary);
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: var(--spacing-3);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

/* ===== ALERTAS ===== */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-4);
    font-weight: 500;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* ===== TABLAS ===== */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table th,
.table td {
    padding: var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
}

.table tr:hover {
    background: var(--bg-tertiary);
}

/* ===== MODALES ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: var(--bg-secondary);
    margin: 5% auto;
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--text-primary);
}

/* ===== NAVEGACIÓN ===== */
.tabs {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

.tab {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.tab:hover {
    background: var(--bg-tertiary);
}

.tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-md);
}

.card h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* ===== UTILIDADES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.align-center { align-items: center; }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* ===== ESTILOS ESPECÍFICOS DEL SISTEMA ===== */

/* Estilos para index.php - Tema claro */
body.index-page {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #cbd5e1 100%);
    color: #1a202c;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    padding: 20px;
}

body.index-page .container {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%);
    border-radius: 20px;
    border: 2px solid #e2e8f0;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

/* Asegurar que el formulario siempre sea claro */
body.index-page .form-container {
    background: #ffffff !important;
    padding: 2rem;
    border-radius: 0;
    border: none;
}

body.index-page .form-group label {
    color: #374151 !important;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

body.index-page .form-control {
    background: #ffffff !important;
    border: 2px solid #d1d5db !important;
    color: #1f2937 !important;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: all 0.2s ease;
}

body.index-page .form-control:focus {
    border-color: #1e3a8a !important;
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1) !important;
    outline: none;
}

body.index-page .form-control::placeholder {
    color: #9ca3af !important;
    opacity: 1;
}

body.index-page .header {
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    color: white;
    padding: 2rem;
    text-align: center;
}

body.index-page .header h1 {
    font-size: 2.5em;
    margin-bottom: 0.5rem;
}

body.index-page .header p {
    font-size: 1.1em;
    opacity: 0.9;
}

body.index-page .form-container {
    padding: 2rem;
}

body.index-page .form-group {
    margin-bottom: 1.5rem;
}

body.index-page .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-weight: 500;
}

body.index-page .form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
    color: #1a202c;
}

body.index-page .form-control:focus {
    outline: none;
    border-color: #1e3a8a;
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

body.index-page .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

body.index-page .btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.index-page .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 58, 138, 0.3);
}

body.index-page .alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

body.index-page .alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

body.index-page .alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

body.index-page .alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

body.index-page .admin-link {
    text-align: center;
    margin-top: 2rem;
}

body.index-page .admin-link a {
    color: #1e3a8a;
    text-decoration: none;
    font-weight: 500;
}

body.index-page .admin-link a:hover {
    text-decoration: underline;
}

body.index-page .webinar-info {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid #1e3a8a;
}

body.index-page .webinar-info h3 {
    color: #333;
    margin-bottom: 0.5rem;
}

body.index-page .webinar-info p {
    color: #666;
    margin: 0.25rem 0;
}

/* CAPTCHA para index.php */
body.index-page .captcha-container {
    margin-bottom: 1rem;
}

body.index-page .captcha-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 3px solid #dee2e6;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    font-family: 'Arial', sans-serif;
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: 8px;
    color: #2c3e50;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 80px;
}

body.index-page .captcha-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

body.index-page #captcha-text {
    flex: 1;
    text-align: center;
    user-select: none;
    position: relative;
    z-index: 1;
}

body.index-page #refresh-captcha {
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s ease;
}

body.index-page #refresh-captcha:hover {
    background: #1e40af;
}

/* Enlaces de descarga para index.php */
body.index-page .download-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: bold;
    background: #dbeafe;
    padding: 10px 20px;
    border-radius: 5px;
    display: inline-block;
    margin: 10px 0;
    transition: all 0.2s ease;
}

body.index-page .download-link:hover {
    background: #bfdbfe;
    transform: translateY(-1px);
}

body.index-page .survey-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: bold;
    background: #dcfce7;
    padding: 10px 20px;
    border-radius: 5px;
    display: inline-block;
    margin: 10px 0;
    transition: all 0.2s ease;
}

body.index-page .survey-link:hover {
    background: #bbf7d0;
    transform: translateY(-1px);
}

/* Otra especialidad para index.php */
body.index-page #otra-especialidad-group {
    display: none;
}

body.index-page #otra-especialidad-group.show {
    display: block;
}

/* Company logo para index.php */
body.index-page .company-logo {
    max-height: 70px;
    margin-right: 20px;
}

body.index-page .header-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

body.index-page .header-logo img {
    max-height: 70px;
    margin-right: 20px;
    width: auto;
}

/* Form text para index.php */
body.index-page .form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #6c757d;
}

body.index-page .form-text i {
    color: #2563eb;
    margin-right: 0.25rem;
}

/* Estilos específicos de empresas para index.php */
body.index-page.empresa-nr-nutricion-renal .header,
body.index-page.empresa-nr-nutrición-renal .header {
    background: linear-gradient(135deg, #1e40af, #059669);
}

body.index-page.empresa-nr-nutricion-renal .btn,
body.index-page.empresa-nr-nutrición-renal .btn {
    background: linear-gradient(135deg, #1e40af, #059669);
}

body.index-page.empresa-nr-nutricion-renal .form-control:focus,
body.index-page.empresa-nr-nutrición-renal .form-control:focus {
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

body.index-page.empresa-nr-nutricion-renal .webinar-info,
body.index-page.empresa-nr-nutrición-renal .webinar-info {
    border-left-color: #1e40af;
}

body.index-page.empresa-nr-nutricion-renal #refresh-captcha,
body.index-page.empresa-nr-nutrición-renal #refresh-captcha {
    background: #1e40af;
}

body.index-page.empresa-nr-nutricion-renal #refresh-captcha:hover,
body.index-page.empresa-nr-nutrición-renal #refresh-captcha:hover {
    background: #1d4ed8;
}

body.index-page.empresa-nin-institute .header {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

body.index-page.empresa-nin-institute .btn {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

body.index-page.empresa-nin-institute .form-control:focus {
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

body.index-page.empresa-nin-institute .webinar-info {
    border-left-color: #1e40af;
}

body.index-page.empresa-nin-institute #refresh-captcha {
    background: #1e40af;
}

body.index-page.empresa-nin-institute #refresh-captcha:hover {
    background: #1e3a8a;
}

/* Fondos dinámicos para empresas en index.php - Mantener tema claro */
body.index-page.empresa-nr-nutricion-renal .container,
body.index-page.empresa-nr-nutrición-renal .container {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 50%, #e0f2fe 100%) !important;
    border: 2px solid #1e40af;
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.15);
}

body.index-page.empresa-nin-institute .container {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #e2e8f0 100%) !important;
    border: 2px solid #1e40af;
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.15);
}

/* Asegurar que el formulario mantenga el tema claro para todas las empresas */
body.index-page[class*="empresa-"] .form-container {
    background: #ffffff !important;
}

body.index-page[class*="empresa-"] .form-group label {
    color: #374151 !important;
}

body.index-page[class*="empresa-"] .form-control {
    background: #ffffff !important;
    border: 2px solid #d1d5db !important;
    color: #1f2937 !important;
}

body.index-page[class*="empresa-"] .form-control:focus {
    border-color: var(--empresa-color-primario, #1e3a8a) !important;
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1) !important;
}

/* Estilos adicionales para mantener tema claro */
body.index-page .form-container {
    background: #ffffff !important;
    border: none !important;
    box-shadow: none !important;
}

body.index-page .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

body.index-page .form-row .form-group {
    margin-bottom: 0;
}

body.index-page .btn {
    background: linear-gradient(135deg, #1e3a8a, #3b82f6) !important;
    color: white !important;
    border: none !important;
    padding: 1rem 2rem !important;
    border-radius: 8px !important;
    font-size: 1.1rem !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    width: 100% !important;
}

body.index-page .btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 20px rgba(30, 58, 138, 0.3) !important;
}

/* Estilos para select y opciones */
body.index-page select.form-control {
    background: #ffffff !important;
    color: #1f2937 !important;
    border: 2px solid #d1d5db !important;
}

body.index-page select.form-control option {
    background: #ffffff !important;
    color: #1f2937 !important;
    padding: 8px !important;
}

/* Estilos para el webinar info */
body.index-page .webinar-info {
    background: #f8f9fa !important;
    border: 1px solid #e9ecef !important;
    border-left: 4px solid #1e3a8a !important;
    color: #495057 !important;
    padding: 1rem !important;
    border-radius: 8px !important;
    margin-bottom: 1.5rem !important;
}

body.index-page .webinar-info h3 {
    color: #212529 !important;
    margin-bottom: 0.5rem !important;
}

body.index-page .webinar-info p {
    color: #6c757d !important;
    margin: 0.25rem 0 !important;
}

/* Estilos dinámicos para empresas en index.php */
body.index-page[class*="empresa-"] .header {
    transition: background 0.3s ease;
}

body.index-page[class*="empresa-"] .btn {
    transition: background 0.3s ease;
}

body.index-page[class*="empresa-"] .form-control:focus {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

body.index-page[class*="empresa-"] .webinar-info {
    transition: border-left-color 0.3s ease;
}

body.index-page[class*="empresa-"] #refresh-captcha {
    transition: background 0.3s ease;
}

/* Constancia de demostración */
.constancia {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border: 3px solid #e2e8f0;
}

.constancia .header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 3px solid #1e3a8a;
}

.constancia .logo {
    font-size: 2.5em;
    font-weight: bold;
    color: #1e3a8a;
    margin-bottom: 10px;
}

.constancia .titulo {
    font-size: 1.8em;
    color: #333;
    margin-bottom: 20px;
}

.constancia .subtitulo {
    font-size: 1.2em;
    color: #666;
    margin-bottom: 30px;
}

.constancia .contenido {
    margin: 40px 0;
    line-height: 1.8;
    font-size: 1.1em;
}

.constancia .nombre {
    font-size: 1.5em;
    font-weight: bold;
    color: #2c3e50;
    margin: 20px 0;
}

.constancia .webinar-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 5px solid #1e3a8a;
}

.constancia .fecha {
    text-align: right;
    color: #666;
    margin-top: 40px;
}

.constancia .firma {
    text-align: center;
    margin-top: 60px;
    padding-top: 20px;
    border-top: 2px solid #e2e8f0;
}

/* Demo notice */
.demo-notice {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    text-align: center;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

.badge-success {
    color: #fff;
    background-color: #28a745;
}

.badge-secondary {
    color: #fff;
    background-color: #6c757d;
}

.badge-danger {
    color: #fff;
    background-color: #dc3545;
}

.badge-warning {
    color: #212529;
    background-color: #ffc107;
}

.badge-info {
    color: #fff;
    background-color: #2563eb;
}

/* Company cards */
.company-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-md);
}

.company-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.company-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.company-actions {
    display: flex;
    gap: var(--spacing-2);
}

.company-colors {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.color-preview {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

.company-logo {
    max-width: 100px;
    max-height: 60px;
    object-fit: contain;
}

/* ===== ESTILOS ESPECÍFICOS DEL ADMIN ===== */
body.admin-page {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f8fafc;
    color: #2d3748;
}

body.admin-page .header {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid #4a5568;
}

body.admin-page .header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

body.admin-page .header h1 {
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 15px;
}

body.admin-page .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

body.admin-page .user-role {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

body.admin-page .logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

body.admin-page .logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
}

body.admin-page .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

body.admin-page .tabs {
    display: flex;
    background: #2d3748;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    margin: 20px auto 30px auto;
    max-width: 1400px;
    overflow: hidden;
    border: 1px solid #4a5568;
}

body.admin-page .tab {
    flex: 1;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    background: #2d3748;
    font-size: 1.1rem;
    font-weight: 600;
    color: #a0aec0;
}

body.admin-page .tab.active {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
}

body.admin-page .tab:hover:not(.active) {
    background: #4a5568;
    color: #e2e8f0;
}

body.admin-page .tab-content {
    display: none;
}

body.admin-page .tab-content.active {
    display: block;
}

body.admin-page .card {
    background: #2d3748;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    margin-bottom: 30px;
    border: 1px solid #4a5568;
    width: 100%;
}

body.admin-page .card h2 {
    color: #e2e8f0;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

body.admin-page .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

body.admin-page .form-group {
    margin-bottom: 20px;
}

body.admin-page .form-group label {
    display: block;
    margin-bottom: 8px;
    color: #f7fafc;
    font-weight: 600;
    font-size: 1rem;
}

body.admin-page .form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #4a5568;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #2d3748;
    color: #f7fafc;
    font-weight: 500;
}

body.admin-page .form-control:focus {
    outline: none;
    border-color: #1e3a8a;
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.3);
    background: #4a5568;
    color: #ffffff;
}

body.admin-page .form-control::placeholder {
    color: #a0aec0;
    opacity: 1;
}

body.admin-page .form-control option {
    background: #2d3748;
    color: #f7fafc;
    padding: 8px;
}

body.admin-page .btn {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

body.admin-page .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.3);
}

body.admin-page .btn-danger {
    background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
}

body.admin-page .btn-success {
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
}

body.admin-page .table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

body.admin-page .table th,
body.admin-page .table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #4a5568;
}

body.admin-page .table th {
    background: #4a5568;
    font-weight: 600;
    color: #f7fafc;
    font-size: 1rem;
}

body.admin-page .table td {
    color: #e2e8f0;
    font-weight: 500;
}

body.admin-page .table tr:hover {
    background: #4a5568;
}

body.admin-page .table tr:hover td {
    color: #ffffff;
}

/* Estilos del Modal para Admin */
body.admin-page .modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

body.admin-page .modal-content {
    background-color: #2d3748;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease-out;
    border: 1px solid #4a5568;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body.admin-page .modal-header {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    padding: 20px 25px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

body.admin-page .modal-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
}

body.admin-page .close {
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

body.admin-page .close:hover {
    opacity: 0.7;
}

body.admin-page .modal-body {
    padding: 30px 25px;
    text-align: center;
}

body.admin-page .modal-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

body.admin-page .modal-icon.success {
    color: #38a169;
}

body.admin-page .modal-icon.error {
    color: #e53e3e;
}

body.admin-page .modal-icon.warning {
    color: #d69e2e;
}

body.admin-page .modal-icon.info {
    color: #3182ce;
}

body.admin-page .modal-body p {
    font-size: 1.1rem;
    color: #f7fafc;
    margin-bottom: 20px;
    line-height: 1.6;
    font-weight: 500;
}

body.admin-page .password-display {
    background: #1a202c;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
    border: 1px solid #4a5568;
}

body.admin-page .password-display label {
    display: block;
    font-weight: 600;
    color: #f7fafc;
    margin-bottom: 10px;
    font-size: 1rem;
}

body.admin-page .password-field {
    display: flex;
    gap: 10px;
    align-items: center;
}

body.admin-page .password-field input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #4a5568;
    border-radius: 8px;
    font-size: 1rem;
    font-family: monospace;
    background: #2d3748;
    color: #f7fafc;
    font-weight: 600;
}

body.admin-page .copy-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

body.admin-page .copy-btn:hover {
    background: #1e40af;
}

body.admin-page .modal-footer {
    padding: 20px 25px;
    background: #1a202c;
    border-radius: 0 0 15px 15px;
    text-align: right;
    border-top: 1px solid #4a5568;
}

/* Estilos para textos pequeños en Admin */
body.admin-page small {
    color: #cbd5e0 !important;
    font-size: 0.9rem !important;
    font-weight: 500 !important;
}

/* Estilos para elementos de ayuda en Admin */
body.admin-page .form-text {
    color: #a0aec0 !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
}

/* Mejorar contraste en botones pequeños en Admin */
body.admin-page .btn[style*="padding: 4px"] {
    font-weight: 600 !important;
    font-size: 0.8rem !important;
}

/* Mejorar legibilidad de selectores en Admin */
body.admin-page select.form-control {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23cbd5e0' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 40px;
}

/* Mejorar contraste en inputs de fecha en Admin */
body.admin-page input[type="date"].form-control {
    color-scheme: dark;
}

body.admin-page input[type="date"].form-control::-webkit-calendar-picker-indicator {
    filter: invert(1);
}

/* Mejorar contraste en inputs de número en Admin */
body.admin-page input[type="number"].form-control {
    -moz-appearance: textfield;
}

body.admin-page input[type="number"].form-control::-webkit-outer-spin-button,
body.admin-page input[type="number"].form-control::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Mejorar legibilidad de file inputs en Admin */
body.admin-page input[type="file"].form-control {
    padding: 8px 12px;
}

body.admin-page input[type="file"].form-control::file-selector-button {
    background: #4a5568;
    color: #f7fafc;
    border: 1px solid #4a5568;
    border-radius: 6px;
    padding: 8px 12px;
    margin-right: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.admin-page input[type="file"].form-control::file-selector-button:hover {
    background: #1e3a8a;
    border-color: #1e3a8a;
}

body.admin-page .btn-primary {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.admin-page .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.3);
}

body.admin-page .btn-secondary {
    background: linear-gradient(135deg, #718096 0%, #4a5568 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.admin-page .btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(113, 128, 150, 0.3);
}

body.admin-page .badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

body.admin-page .badge-success {
    background: #c6f6d5;
    color: #22543d;
}

body.admin-page .badge-danger {
    background: #fed7d7;
    color: #742a2a;
}

body.admin-page .badge-warning {
    background: #fef5e7;
    color: #744210;
}

body.admin-page .alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
}

body.admin-page .alert-success {
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

body.admin-page .alert-danger {
    background: #fed7d7;
    color: #742a2a;
    border: 1px solid #feb2b2;
}

body.admin-page .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

body.admin-page .stat-card {
    background: #2d3748;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    text-align: center;
    border: 1px solid #4a5568;
}

body.admin-page .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 10px;
}

body.admin-page .stat-label {
    color: #a0aec0;
    font-size: 1.1rem;
    font-weight: 600;
}

body.admin-page .permission-denied {
    text-align: center;
    padding: 60px 20px;
    color: #a0aec0;
}

body.admin-page .permission-denied i {
    font-size: 4rem;
    color: #4a5568;
    margin-bottom: 20px;
}

/* ===== ESTILOS ESPECÍFICOS DE LOGIN ===== */
body.login-page {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

body.login-page .login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

body.login-page .login-header {
    margin-bottom: 30px;
}

body.login-page .login-header h1 {
    color: #2d3748;
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

body.login-page .login-header p {
    color: #718096;
    font-size: 1.1rem;
}

body.login-page .form-group {
    margin-bottom: 25px;
    text-align: left;
}

body.login-page .form-group label {
    display: block;
    margin-bottom: 8px;
    color: #4a5568;
    font-weight: 600;
    font-size: 1.1rem;
}

body.login-page .form-control {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1.1rem;
    color: #2d3748 !important;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.95) !important;
    font-weight: 500;
}

body.login-page .form-control:focus {
    outline: none;
    border-color: #1e3a8a;
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
    transform: translateY(-2px);
    color: #2d3748 !important;
    background: white !important;
}

body.login-page .form-control::placeholder {
    color: #a0aec0 !important;
    opacity: 1 !important;
}

body.login-page .btn {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border: none;
    padding: 18px 40px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 20px;
}

body.login-page .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(30, 58, 138, 0.4);
}

body.login-page .back-link {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

body.login-page .back-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    color: white;
    text-decoration: none;
}

body.login-page .role-info {
    background: #f7fafc;
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
    text-align: left;
}

body.login-page .role-info h3 {
    color: #2d3748;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

body.login-page .role-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #1e3a8a;
}

body.login-page .role-item i {
    color: #1e3a8a;
    margin-right: 10px;
    width: 20px;
}

body.login-page .role-item.admin {
    border-left-color: #e53e3e;
}

body.login-page .role-item.admin i {
    color: #e53e3e;
}

body.login-page .role-item.gestor {
    border-left-color: #38a169;
}

body.login-page .role-item.gestor i {
    color: #38a169;
}

/* ===== ESTILOS ESPECÍFICOS DE ERROR ===== */
body.error-page {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

body.error-page .error-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 60px 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

body.error-page .error-icon {
    font-size: 5rem;
    color: #e53e3e;
    margin-bottom: 30px;
}

body.error-page .error-title {
    font-size: 2.5rem;
    color: #2d3748;
    margin-bottom: 20px;
    font-weight: 700;
}

body.error-page .error-message {
    color: #718096;
    font-size: 1.2rem;
    margin-bottom: 40px;
    line-height: 1.6;
}

body.error-page .btn {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin: 0 10px;
}

body.error-page .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(30, 58, 138, 0.4);
    color: white;
    text-decoration: none;
}

body.error-page .btn-secondary {
    background: linear-gradient(135deg, #718096 0%, #4a5568 100%);
}

body.error-page .btn-secondary:hover {
    box-shadow: 0 10px 25px rgba(113, 128, 150, 0.4);
}

/* Responsive para Admin */
@media (max-width: 768px) {
    body.admin-page .form-row {
        grid-template-columns: 1fr;
    }
    
    body.admin-page .tabs {
        flex-direction: column;
    }
    
    body.admin-page .header-content {
        flex-direction: column;
        gap: 15px;
    }
}

/* Responsive para index.php */
@media (max-width: 768px) {
    body.index-page {
        padding: 10px;
    }
    
    body.index-page .container {
        border-radius: 10px;
    }
    
    body.index-page .header {
        padding: 1.5rem;
    }
    
    body.index-page .header h1 {
        font-size: 2em;
    }
    
    body.index-page .form-container {
        padding: 1.5rem;
    }
    
    body.index-page .form-row {
        grid-template-columns: 1fr;
    }
    
    body.index-page .captcha-display {
        font-size: 2rem;
        padding: 15px;
        min-height: 60px;
    }
    
    .constancia {
        padding: 30px;
        margin: 10px;
    }
    
    .captcha-display {
        font-size: 2rem;
        padding: 15px;
        min-height: 60px;
    }
}

@media (max-width: 480px) {
    body.index-page .header h1 {
        font-size: 1.5em;
    }
    
    body.index-page .form-container {
        padding: 1rem;
    }
    
    .constancia {
        padding: 20px;
    }
    
    .constancia .logo {
        font-size: 2em;
    }
    
    .constancia .titulo {
        font-size: 1.5em;
    }
    
    .company-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-2);
    }
}