/* ==========================================================================
   CBT ATENCO - DESIGN SYSTEM & UI TOKENS (PREMIUM INSTITUTIONAL EDITION)
   Modern Web Design System: Luxury Typography, Glassmorphism, Dynamic Gradients
   ========================================================================== */

:root {
    /* Paleta Institucional de Alta Fidelidad */
    --color-primary-dark: #001e3d;
    --color-primary: #003d7a;
    --color-primary-light: #005eb8;
    --color-primary-subtle: #eef6fd;
    --color-primary-glow: rgba(0, 61, 122, 0.25);
    
    /* Acentos Dorados & Conversión */
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-accent-light: #fbbf24;
    --color-accent-subtle: #fffbeb;
    --color-accent-glow: rgba(245, 158, 11, 0.35);
    
    /* Estados Semánticos */
    --color-success: #10b981;
    --color-success-subtle: #ecfdf5;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #0284c7;
    
    /* Neutros, Fondo & Superficies Vidriadas */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-glass: rgba(255, 255, 255, 0.85);
    --color-surface-hover: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-subtle: rgba(0, 30, 61, 0.08);
    --color-border-hover: #cbd5e1;
    
    /* Tipografía y Textos */
    --color-text-main: #0f172a;
    --color-text-muted: #475569;
    --color-text-light: #94a3b8;
    --color-text-white: #ffffff;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Sombras Escalonadas & Elevaciones Suaves */
    --shadow-xs: 0 1px 3px rgba(0, 30, 61, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
    --shadow-sm: 0 4px 14px -2px rgba(0, 30, 61, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 12px 28px -4px rgba(0, 30, 61, 0.08), 0 6px 16px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 44px -8px rgba(0, 30, 61, 0.12), 0 8px 24px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 28px 60px -12px rgba(0, 30, 61, 0.18), 0 12px 32px -4px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 30px var(--color-primary-glow);
    --shadow-glow-accent: 0 0 30px var(--color-accent-glow);
    
    /* Radios de Borde */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    
    /* Curvas de Transición Suaves */
    --transition-fast: 180ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 300ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   RESET & TIPOGRAFÍA BASE
   ========================================================================== */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-main);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar Personalizado */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-heading);
    color: var(--color-primary-dark);
    font-weight: 700;
    line-height: 1.22;
    letter-spacing: -0.025em;
    margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2.1rem, 4.2vw, 2.85rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.35rem); font-weight: 800; }
h3 { font-size: clamp(1.4rem, 2.6vw, 1.85rem); }
h4 { font-size: 1.3rem; }
h5 { font-size: 1.15rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1.15rem;
    color: var(--color-text-muted);
}

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

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

/* ==========================================================================
   COMPONENTES UI & UTILIDADES
   ========================================================================== */

/* Secciones & Títulos con Acento */
.section-wrapper {
    padding: 4rem 0;
}

.section-header {
    margin-bottom: 2.75rem;
    text-align: center;
    position: relative;
}

.section-header .subtitle {
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--color-accent-dark);
    margin-bottom: 0.6rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.9) 0%, rgba(253, 230, 138, 0.6) 100%);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: var(--shadow-xs);
}

.section-header .title {
    color: var(--color-primary-dark);
    position: relative;
    padding-bottom: 14px;
    margin-bottom: 0.5rem;
}

.section-header .title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 64px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
}

/* Tarjetas Premium con Elevación y Hover */
.premium-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.premium-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 61, 122, 0.2);
}

.premium-card .card-media {
    position: relative;
    overflow: hidden;
    background-color: #f1f5f9;
}

.premium-card .card-media img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.premium-card:hover .card-media img {
    transform: scale(1.06);
}

.premium-card .card-body {
    padding: 1.75rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Panel */
.glass-panel {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

/* Botones Premium con Efectos de Gradiente y Shimmer */
.btn-premium-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-white) !important;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 12px 26px;
    border-radius: var(--radius-md);
    border: none;
    box-shadow: 0 6px 18px rgba(0, 61, 122, 0.28);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-premium-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.btn-premium-primary:hover::after {
    left: 100%;
}

.btn-premium-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 61, 122, 0.38);
    color: var(--color-text-white) !important;
}

.btn-premium-accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: #ffffff !important;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
    padding: 12px 26px;
    border-radius: var(--radius-md);
    border: none;
    box-shadow: 0 6px 18px rgba(217, 119, 6, 0.32);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-premium-accent::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.6s ease;
}

.btn-premium-accent:hover::after {
    left: 100%;
}

.btn-premium-accent:hover {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(217, 119, 6, 0.45);
    color: #ffffff !important;
}

.btn-premium-outline {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    color: var(--color-primary) !important;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 11px 24px;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-primary);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-premium-outline:hover {
    background: var(--color-primary);
    color: var(--color-text-white) !important;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* Badges e Insignias Modernas */
.badge-pill-custom {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    font-size: 0.825rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
}

.badge-pill-primary {
    background: linear-gradient(135deg, #eef6fd 0%, #e0effc 100%);
    color: var(--color-primary);
    border: 1px solid rgba(0, 61, 122, 0.18);
    box-shadow: var(--shadow-xs);
}

.badge-pill-accent {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: var(--color-accent-dark);
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: var(--shadow-xs);
}

/* Icon Box con Gradiente Suave */
.icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.15rem;
    transition: transform var(--transition-fast);
}

.premium-card:hover .icon-box {
    transform: scale(1.1) rotate(-3deg);
}

.icon-box-primary {
    background: linear-gradient(135deg, #eef6fd 0%, #d8ebfb 100%);
    color: var(--color-primary);
    border: 1px solid rgba(0, 61, 122, 0.15);
}

.icon-box-accent {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: var(--color-accent-dark);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Toast Notifications */
.custom-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99999;
    padding: 14px 22px;
    background: #0f172a;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.custom-toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ==========================================================================
   HEADER / NAVBAR ULTRA-MODERNO
   ========================================================================== */

.main-navbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    transition: all var(--transition-normal);
    padding: 0.85rem 0;
    box-shadow: 0 4px 20px rgba(0, 30, 61, 0.04);
}

.main-navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    padding: 0.6rem 0;
}

.main-navbar .navbar-brand img {
    height: 48px;
    width: auto;
    transition: transform var(--transition-fast);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.05));
}

.main-navbar .navbar-brand:hover img {
    transform: scale(1.04);
}

.main-navbar .nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text-main) !important;
    padding: 8px 16px !important;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

.main-navbar .nav-link:hover,
.main-navbar .nav-item.active .nav-link,
.main-navbar .nav-link.active {
    color: var(--color-primary) !important;
    background-color: var(--color-primary-subtle);
}

.main-navbar .dropdown-menu {
    border: 1px solid rgba(0, 30, 61, 0.08);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.6rem;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    animation: dropdownFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.main-navbar .dropdown-item {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.92rem;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    color: var(--color-text-main);
    transition: all var(--transition-fast);
}

.main-navbar .dropdown-item:hover,
.main-navbar .dropdown-item.active {
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    transform: translateX(4px);
}

/* ==========================================================================
   FOOTER INSTITUCIONAL MODERNO
   ========================================================================== */

.institutional-footer {
    background: linear-gradient(180deg, #001f3f 0%, #00142b 100%);
    color: #ffffff;
    padding: 4.5rem 0 2rem 0;
    margin-top: 5rem;
    border-top: 4px solid var(--color-accent);
    position: relative;
}

.institutional-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.06) 0%, transparent 40%),
                radial-gradient(circle at 10% 80%, rgba(0, 94, 184, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.institutional-footer h5,
.institutional-footer h6 {
    color: #ffffff !important;
    font-size: 1.2rem;
    margin-bottom: 1.35rem;
    position: relative;
    padding-bottom: 10px;
}

.institutional-footer p,
.institutional-footer span,
.institutional-footer small,
.institutional-footer strong,
.institutional-footer li {
    color: #ffffff !important;
}

.institutional-footer h5::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: var(--radius-full);
}

.institutional-footer a {
    color: #ffffff !important;
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: inline-block;
}

.institutional-footer a:hover {
    color: var(--color-accent) !important;
    transform: translateX(5px);
}

.institutional-footer .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.institutional-footer .footer-links li {
    margin-bottom: 0.75rem;
    color: #ffffff;
}

.institutional-footer .social-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff !important;
    font-size: 1.15rem;
    margin-right: 10px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-fast);
}

.institutional-footer .social-btn:hover {
    background: var(--color-accent);
    color: #ffffff !important;
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
}

.institutional-footer .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 1.75rem;
    margin-top: 3rem;
    font-size: 0.9rem;
    color: #ffffff !important;
}

.institutional-footer .footer-bottom small {
    color: #ffffff !important;
}

/* ==========================================================================
   WHATSAPP FLOATING BUTTON
   ========================================================================== */

.whatsapp-float-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
}

.whatsapp-float-btn {
    width: 62px;
    height: 62px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: #ffffff !important;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.85rem;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.whatsapp-float-btn:hover {
    transform: scale(1.1) rotate(6deg);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
    color: #ffffff !important;
}

.whatsapp-tooltip {
    background: #0f172a;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: all var(--transition-fast);
}

.whatsapp-float-container:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}