/**
 * Plataforma Educativa GESO — geso.boliazul.com
 * Hoja de Estilos de Alta Fidelidad para Formación de Adultos
 * Cumple con principios de diseño editorial: sin píldoras superfluas, contraste WCAG AA, tipografía Plus Jakarta Sans y JetBrains Mono.
 */

:root {
    --color-primary: #0a192f;
    --color-primary-soft: #172a45;
    --color-primary-light: #1e3a5f;
    --color-accent: #0284c7;
    --color-accent-hover: #0369a1;
    --color-accent-soft: #eff6ff;
    --color-accent-border: #bfdbfe;
    
    --color-canvas: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-hover: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-subtle: #edf2f7;
    
    --color-text-main: #0f172a;
    --color-text-muted: #475569;
    --color-text-light: #64748b;
    
    --color-danger: #dc2626;
    --color-danger-bg: #fef2f2;
    --color-danger-border: #fecaca;
    --color-success: #15803d;
    --color-success-bg: #f0fdf4;
    --color-success-border: #bbf7d0;
    --color-warning: #b45309;
    --color-warning-bg: #fffbeb;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    --shadow-elevated: 0 12px 28px -6px rgba(15, 23, 42, 0.1), 0 4px 10px -2px rgba(15, 23, 42, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--color-canvas);
    color: var(--color-text-main);
    line-height: 1.6;
    font-size: 15.5px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 150ms ease;
}

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

/* ==========================================================================
   Top Bar Navigation Contract: 1 fila, 3 zonas exactas
   ========================================================================== */
.topbar {
    background-color: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 50;
    transition: all 150ms ease;
}

.topbar-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 17px;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.brand-crest {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #0a192f 0%, #0284c7 100%);
    color: #ffffff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    box-shadow: 0 2px 6px rgba(2, 132, 199, 0.25);
}

.brand-title {
    display: flex;
    flex-direction: column;
}

.brand-title span:first-child {
    line-height: 1.15;
    font-size: 16px;
}

.brand-title span:last-child {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-light);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 14px;
    font-weight: 600;
    padding: 6px 0;
    position: relative;
    transition: color 150ms ease;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 150ms ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ==========================================================================
   Botones con proporciones geométricas y sin pills de caramelo
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all 150ms cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff !important;
}

.btn-primary:hover {
    background-color: var(--color-primary-soft);
    color: #ffffff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(10, 25, 47, 0.15);
}

.btn-accent {
    background-color: var(--color-accent);
    color: #ffffff !important;
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    color: #ffffff !important;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text-main) !important;
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-canvas);
    border-color: #cbd5e1;
    color: var(--color-primary) !important;
}

.btn-sm {
    padding: 7px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 15px;
}

/* ==========================================================================
   Hero Section: Distribución Dividida de Dos Columnas (Storytelling + Acceso)
   ========================================================================== */
.hero-wrapper {
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--color-border);
    padding: 48px 0 64px 0;
}

.hero-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.hero-kicker {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.hero-kicker::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-accent);
}

.hero-title {
    font-size: 38px;
    line-height: 1.18;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.03em;
    text-wrap: balance;
}

.hero-subtitle {
    font-size: 16.5px;
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 580px;
}

.hero-meta-strip {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--color-text-light);
    margin-top: 4px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--color-text-main);
}

.hero-meta-item svg {
    color: var(--color-accent);
}

.hero-ctas {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 8px;
}

/* ==========================================================================
   Campus Access Card (Tarjeta de Acceso Integrada en Hero)
   ========================================================================== */
.access-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-elevated);
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.access-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.access-header {
    margin-bottom: 20px;
}

.access-header h2 {
    font-size: 21px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.access-header p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* Conmutador de Cuentas Demo Rápidas */
.demo-accounts-bar {
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    margin-bottom: 18px;
    font-size: 12.5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.demo-btn-group {
    display: flex;
    gap: 6px;
}

.btn-fill-demo {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 11.5px;
    font-weight: 700;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 120ms ease;
}

.btn-fill-demo:hover {
    background: var(--color-accent-soft);
    border-color: var(--color-accent-border);
    color: var(--color-accent);
}

/* Formulario */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14.5px;
    font-family: inherit;
    color: var(--color-text-main);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: all 150ms ease;
}

.form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper .form-control {
    padding-right: 76px;
}

.btn-toggle-pwd {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-accent);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
}

.btn-toggle-pwd:hover {
    background-color: var(--color-accent-soft);
}

.form-footer-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-light);
    margin-bottom: 18px;
    padding: 0 2px;
}

/* Alertas */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    line-height: 1.5;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-danger {
    background-color: var(--color-danger-bg);
    border: 1px solid var(--color-danger-border);
    color: #991b1b;
}

.alert-success {
    background-color: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
    color: #166534;
}

/* ==========================================================================
   Contenedores Principales de Contenido
   ========================================================================== */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-block {
    padding: 72px 0;
}

.section-header {
    margin-bottom: 36px;
}

.section-kicker {
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent);
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.section-title {
    font-size: 30px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-muted);
    max-width: 720px;
    margin-top: 8px;
    line-height: 1.6;
}

/* ==========================================================================
   Ámbitos Formativos (Bento Grid Editorial de 3 Columnas)
   ========================================================================== */
.ambitos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.ambito-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-card);
    transition: all 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.ambito-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-elevated);
    border-color: #cbd5e1;
}

.ambito-art-header {
    height: 150px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow: hidden;
}

.art-cientifico {
    background: linear-gradient(135deg, #091e3a 0%, #0369a1 100%);
    color: #ffffff;
}

.art-comunicacion {
    background: linear-gradient(135deg, #064e3b 0%, #059669 100%);
    color: #ffffff;
}

.art-social {
    background: linear-gradient(135deg, #78350f 0%, #d97706 100%);
    color: #ffffff;
}

.ambito-card-body {
    padding: 26px 24px 24px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.ambito-header-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: 8px;
}

.ambito-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

.materias-list {
    list-style: none;
    margin-top: auto;
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.materias-list li {
    font-size: 13.5px;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.materias-list li::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
    flex-shrink: 0;
}

/* ==========================================================================
   Estructura y Convocatorias de Examen (Grid 2 Columnas)
   ========================================================================== */
.exam-overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.exam-info-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-card);
}

.exam-info-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.exam-info-card p {
    font-size: 14.5px;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin-bottom: 16px;
}

.criteria-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.criteria-list li {
    font-size: 14px;
    color: var(--color-text-main);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: #f8fafc;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
}

.criteria-list svg {
    color: var(--color-accent);
    margin-top: 2px;
    flex-shrink: 0;
}

/* ==========================================================================
   Metodología para Adultos (4 Columnas)
   ========================================================================== */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pillar-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow-subtle);
}

.pillar-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent);
}

.pillar-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
}

.pillar-desc {
    font-size: 13.5px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ==========================================================================
   Preguntas Frecuentes (FAQ Acordeón Accesible)
   ========================================================================== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 920px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 150ms ease;
}

.faq-item:hover {
    border-color: #cbd5e1;
}

.faq-summary {
    padding: 18px 22px;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    list-style: none;
}

.faq-summary::-webkit-details-marker {
    display: none;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--color-text-light);
    transition: transform 180ms ease;
    flex-shrink: 0;
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
    color: var(--color-accent);
}

.faq-content {
    padding: 0 22px 20px 22px;
    font-size: 14.5px;
    color: var(--color-text-muted);
    line-height: 1.7;
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 14px;
}

/* ==========================================================================
   Footer Institucional Limpio
   ========================================================================== */
.footer {
    background-color: #ffffff;
    border-top: 1px solid var(--color-border);
    padding: 48px 0 32px 0;
    margin-top: 48px;
}

.footer-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.footer-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 32px;
}

.footer-brand {
    max-width: 400px;
}

.footer-brand p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    margin-top: 8px;
    line-height: 1.6;
}

.footer-links-group {
    display: flex;
    gap: 48px;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-col a {
    font-size: 13.5px;
    color: var(--color-text-muted);
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12.5px;
    color: var(--color-text-light);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .ambitos-grid {
        grid-template-columns: 1fr;
    }

    .exam-overview-grid {
        grid-template-columns: 1fr;
    }

    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 30px;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
    }

    .footer-top {
        flex-direction: column;
        gap: 24px;
    }

    .footer-links-group {
        flex-direction: column;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}