/**
 * Estilos Personalizados - Capacitación IMMAR 2025
 * Diseño exacto según especificaciones
 */

/* ========================================
   VARIABLES Y CONFIGURACIÓN GENERAL
   ======================================== */

:root {
    /* Colores principales */
    --color-primary: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #dbeafe;
    --color-secondary-light: #e0f2fe;
    --color-background: #eff6ff;
    --color-text-primary: #111827;
    --color-text-secondary: #4b5563;
    --color-hover: #1e3a8a;
    
    /* Espaciado */
    --section-padding: 5rem;
    --card-padding: 1.5rem;
    --border-radius: 0.75rem;
    
    /* Sombras */
    --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);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Tipografía */
    --font-family: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-primary);
    background: linear-gradient(to bottom, var(--color-background), white);
    line-height: 1.6;
}

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

h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1.3;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

.text-large {
    font-size: 1.125rem;
}

/* ========================================
   NAVEGACIÓN
   ======================================== */

.navbar-custom {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--color-secondary);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
}

.logo-nav {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.navbar-brand {
    font-size: 1.125rem;
    color: var(--color-primary) !important;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    color: var(--color-text-secondary) !important;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary) !important;
    background-color: var(--color-secondary);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: var(--section-padding) 0;
    color: white;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-title {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    display: inline-block;
    backdrop-filter: blur(10px);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.btn-hero {
    background-color: white;
    color: var(--color-primary);
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.btn-hero:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.hero-logo-circle {
    width: 250px;
    height: 250px;
    background-color: white;
    border-radius: 50%;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-hover);
    animation: float 3s ease-in-out infinite;
}

.hero-logo-circle img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ========================================
   SECCIONES GENERALES
   ======================================== */

.section-padding {
    padding: var(--section-padding) 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-top: 1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   METODOLOGÍA - CARDS
   ======================================== */

.methodology-section {
    background-color: white;
}

.methodology-card {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    height: 100%;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.methodology-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary-light);
}

.icon-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-md);
}

.icon-circle i {
    font-size: 2rem;
    color: white;
}

.methodology-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.methodology-card p {
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: 0;
}

/* ========================================
   ÁREAS DE CAPACITACIÓN
   ======================================== */

.areas-section {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
}

.area-card {
    background: white;
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    height: 100%;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: var(--shadow-md);
}

.area-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary);
}

.area-card .icon-circle {
    width: 70px;
    height: 70px;
}

.area-card .icon-circle i {
    font-size: 1.75rem;
}

.area-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-align: center;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.area-features {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.area-features li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
}

.area-features li i {
    color: var(--color-primary);
    margin-right: 0.75rem;
    font-size: 1.125rem;
}

.btn-area {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 600;
    width: 100%;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

/* ========================================
   PÁGINA DE ÁREA - HERO
   ======================================== */

.area-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 3rem 0;
    color: white;
}

.btn-back {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.btn-back:hover {
    background-color: rgba(255, 255, 255, 0.3);
    color: white;
    transform: translateX(-5px);
}

.area-hero h1 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.area-hero p {
    font-size: 1.125rem;
    opacity: 0.95;
}

/* ========================================
   SECCIONES DE CAPACITACIÓN (4 bloques)
   ======================================== */

.training-section {
    background-color: white;
    padding: 2rem 0;
}

.training-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-secondary);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.training-card .icon-circle {
    width: 70px;
    height: 70px;
    margin: 0 0 1.5rem 0;
}

.training-card h2 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.training-card p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.qr-container {
    background-color: var(--color-secondary-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin: 1.5rem 0;
}

.qr-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    background: white;
    padding: 1rem;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    text-decoration: none;
    display: inline-block;
}

.btn-primary-custom:hover {
    background: var(--color-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    color: white;
}

.btn-secondary-custom {
    background-color: var(--color-secondary);
    color: var(--color-primary);
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-primary-light);
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin-top: 0.5rem;
}

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

/* ========================================
   LOGIN / SIGNUP PAGES
   ======================================== */

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    background: linear-gradient(135deg, var(--color-background) 0%, white 100%);
}

.auth-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    max-width: 450px;
    width: 100%;
    margin: 0 1rem;
}

.auth-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    display: block;
    border-radius: 50%;
}

.auth-card h2 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 2rem;
}

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

.form-label {
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
}

.input-with-icon input {
    padding-left: 3rem;
}

.form-control {
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-secondary);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(30, 64, 175, 0.1);
}

.btn-auth {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 0.875rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 600;
    width: 100%;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
}

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

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--color-text-secondary);
}

.auth-link a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.alert-danger {
    background-color: #fee2e2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

.alert-success {
    background-color: #d1fae5;
    border: 1px solid #6ee7b7;
    color: #065f46;
}

/* ========================================
   ADMIN PANEL
   ======================================== */

.admin-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 2rem 0;
    color: white;
    margin-bottom: 3rem;
}

.admin-header h1 {
    font-size: 2rem;
    margin-bottom: 0;
}

.btn-logout {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.admin-table {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
}

.table thead {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
}

.table thead th {
    border: none;
    padding: 1rem;
    font-weight: 600;
}

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

.btn-edit {
    background-color: var(--color-primary);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-edit:hover {
    background-color: var(--color-hover);
    transform: translateY(-2px);
}

/* Modal personalizado */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-hover);
}

.modal-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border-bottom: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

.modal-body {
    padding: 2rem;
}

.qr-preview {
    max-width: 200px;
    margin: 1rem 0;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.btn-remove-qr {
    background-color: #dc2626;
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    border: none;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.btn-remove-qr:hover {
    background-color: #b91c1c;
}

/* ========================================
   FOOTER
   ======================================== */

.footer-custom {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 3rem 0;
    margin-top: 5rem;
}

.logo-footer-container {
    width: 120px;
    height: 120px;
    background-color: white;
    border-radius: 50%;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.logo-footer {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ========================================
   UTILIDADES Y RESPONSIVE
   ======================================== */

.text-white-50 {
    color: rgba(255, 255, 255, 0.7) !important;
}

/* Fullscreen QR Modal */
.qr-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.qr-fullscreen img {
    max-width: 90%;
    max-height: 90%;
    border-radius: var(--border-radius);
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-section {
        padding: 3rem 0;
        min-height: auto;
    }
    
    .hero-logo-circle {
        width: 150px;
        height: 150px;
        margin: 2rem auto 0;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .area-card h3 {
        min-height: auto;
    }
    
    .auth-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.75rem;
    }
    
    .btn-hero,
    .btn-primary-custom {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Loading spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}