/**
 * Grupo Santa Mónica - Estilos Principales
 * Portal Corporativo + Campus Virtual + CMS
 */

/* ============ VARIABLES CSS ============ */
:root {
    --primary-color: #1e3a5f;
    --secondary-color: #c9a227;
    --accent-color: #2c5282;
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --transition: all 0.3s ease;
}

/* ============ RESET Y BASE ============ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--dark-color);
    background-color: #ffffff;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--accent-color);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============ UTILIDADES ============ */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-accent { background-color: var(--accent-color) !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-accent { color: var(--accent-color) !important; }

.hover-white:hover { color: #fff !important; }

.bg-white-10 { background-color: rgba(255, 255, 255, 0.1) !important; }

/* ============ HEADER ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
}

.top-bar {
    font-size: 0.875rem;
}

.navbar {
    padding: 0.75rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    color: var(--dark-color) !important;
}

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

.dropdown-menu {
    border: none;
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
}

.dropdown-item {
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.dropdown-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

/* ============ BOTONES ============ */
.btn {
    font-weight: 600;
    padding: 0.625rem 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

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

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
}

.btn-secondary:hover {
    background-color: #b8941f;
    border-color: #b8941f;
    color: #fff;
}

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

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

/* ============ HERO SECTION ============ */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.9) 0%, rgba(15, 23, 42, 0.8) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* ============ SECTIONS ============ */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6c757d;
    margin-bottom: 3rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

/* ============ CARDS ============ */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-5px);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

/* ============ SERVICES ============ */
.service-card {
    text-align: center;
    padding: 2rem;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: #fff;
}

/* ============ PROJECTS ============ */
.project-card {
    position: relative;
    overflow: hidden;
}

.project-image {
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
}

/* ============ STATS ============ */
.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    color: #6c757d;
    margin-top: 0.5rem;
}

/* ============ TESTIMONIALS ============ */
.testimonial-card {
    background: #fff;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.testimonial-text {
    font-style: italic;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* ============ BLOG ============ */
.blog-card {
    height: 100%;
}

.blog-meta {
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 0.75rem;
}

.blog-meta i {
    margin-right: 0.25rem;
}

.blog-excerpt {
    color: #6c757d;
    margin-bottom: 1rem;
}

/* ============ CONTACT ============ */
.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-form .form-control {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #e5e7eb;
}

.contact-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

/* ============ CAMPUS ============ */
.course-card {
    height: 100%;
    border: 1px solid #e5e7eb;
}

.course-image {
    height: 200px;
    object-fit: cover;
}

.course-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.course-price .original {
    font-size: 1rem;
    color: #6c757d;
    text-decoration: line-through;
    margin-left: 0.5rem;
}

.course-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

/* ============ FOOTER ============ */
.site-footer {
    background-color: var(--dark-color);
}

.footer-links a {
    transition: var(--transition);
}

.footer-links a:hover {
    color: #fff !important;
    padding-left: 0.5rem;
}

.social-icon {
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--primary-color) !important;
    transform: translateY(-3px);
}

/* ============ WHATSAPP FLOAT ============ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #fff;
    transform: scale(1.1);
}

/* ============ SCROLL TO TOP ============ */
.btn-scroll-top {
    position: fixed;
    bottom: 30px;
    right: 100px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

/* ============ PAGINATION ============ */
.pagination {
    gap: 0.25rem;
}

.page-link {
    border: none;
    border-radius: var(--border-radius);
    color: var(--dark-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.page-link:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    color: #fff;
}

/* ============ ALERTS ============ */
.alert {
    border: none;
    border-radius: var(--border-radius);
}

/* ============ BREADCRUMB ============ */
.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item a {
    color: var(--primary-color);
}

/* ============ FORMS ============ */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    padding: 0.625rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #e5e7eb;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

/* ============ BADGES ============ */
.badge {
    font-weight: 500;
    padding: 0.5em 1em;
    border-radius: 0.375rem;
}

/* ============ TABS ============ */
.nav-tabs {
    border-bottom: 2px solid #e5e7eb;
}

.nav-tabs .nav-link {
    border: none;
    border-bottom: 2px solid transparent;
    color: #6c757d;
    font-weight: 500;
    padding: 1rem 1.5rem !important;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

/* ============ ACCORDION ============ */
.accordion-button {
    font-weight: 600;
    padding: 1.25rem;
}

.accordion-button:not(.collapsed) {
    background-color: var(--light-color);
    color: var(--primary-color);
}

/* ============ MODAL ============ */
.modal-content {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid #e5e7eb;
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #e5e7eb;
    padding: 1.5rem;
}

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

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

/* ============ RESPONSIVE ============ */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .navbar-collapse {
        background: #fff;
        padding: 1rem;
        border-radius: var(--border-radius);
        box-shadow: var(--box-shadow);
        margin-top: 1rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .btn-scroll-top {
        right: 80px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* ============ UTILIDADES ADICIONALES ============ */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.shadow-hover {
    transition: var(--transition);
}

.shadow-hover:hover {
    box-shadow: var(--box-shadow-lg);
}

/* ============ LOADING ============ */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============ PRINT ============ */
@media print {
    .site-header,
    .site-footer,
    .whatsapp-float,
    .btn-scroll-top {
        display: none !important;
    }
}