/* =======================================
   CSS Variables & Design Tokens
   ======================================= */
:root {
    /* Colors (Institutional Light Blue and Black from Logo) */
    --clr-primary: #3884C0; /* Institutional Blue based on logo */
    --clr-primary-light: #67A8DB; 
    --clr-secondary: #0F172A; /* Dark Slate / Black accent */
    --clr-dark: #0f172a; 
    --clr-light: #f8fafc; 
    --clr-white: #ffffff;
    
    /* Gradients */
    --grad-primary: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
    --grad-dark: linear-gradient(180deg, rgba(15, 23, 42, 0.3) 0%, rgba(15, 23, 42, 0.9) 100%);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacings */
    --section-padding: 6rem 0;
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-pill: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =======================================
   Reset & Base Styles
   ======================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--clr-dark); background-color: var(--clr-light); line-height: 1.6; overflow-x: hidden; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 800; line-height: 1.2; color: var(--clr-dark); }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--section-padding); }

/* =======================================
   Typography Utilities
   ======================================= */
.section-title { font-size: 2.5rem; margin-bottom: 0.5rem; position: relative; display: inline-block; }
.section-title::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 60px; height: 4px; background-color: var(--clr-secondary); border-radius: var(--radius-pill); }
.center .section-title::after { left: 50%; transform: translateX(-50%); }
.section-subtitle { font-size: 1.25rem; color: var(--clr-primary); font-weight: 600; margin-bottom: 1.5rem; }
.section-desc { font-size: 1.125rem; color: #475569; max-width: 600px; margin: 1.5rem auto 3rem; line-height: 1.8; }
.text-white { color: var(--clr-white) !important; }

/* =======================================
   Buttons
   ======================================= */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.75rem 1.5rem; font-family: var(--font-heading); font-weight: 600; font-size: 1rem; border-radius: var(--radius-pill); cursor: pointer; border: none; transition: var(--transition); z-index: 1; position: relative; overflow: hidden; }
.btn-large { padding: 1rem 2rem; font-size: 1.125rem; }
.btn-primary { background: var(--grad-primary); color: var(--clr-white); box-shadow: var(--shadow-md); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 20px -10px var(--clr-primary); }
.btn-secondary { background-color: var(--clr-white); color: var(--clr-primary); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { background-color: var(--clr-light); transform: translateY(-2px); }

.btn-ingreso { background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%); color: var(--clr-dark) !important; border-radius: var(--radius-pill); padding: 0.5rem 1.25rem; font-weight: 800; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.5px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.8); border: 1px solid #94a3b8; transition: all 0.3s ease; margin: 0 0.25rem; }
.btn-ingreso:hover { background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%); transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,1); }

.btn-contacto { background: rgba(56, 132, 192, 0.1); color: var(--clr-primary) !important; border-radius: var(--radius-pill); padding: 0.5rem 1.25rem; font-weight: 700; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.5px; border: 1px solid rgba(56, 132, 192, 0.3); transition: all 0.3s ease; margin: 0 0.25rem; backdrop-filter: blur(8px); }
.btn-contacto:hover { background: var(--clr-primary); color: white !important; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(56, 132, 192, 0.3); border-color: var(--clr-primary); }

.navbar:not(.scrolled):not(.inner-nav) .btn-contacto { background: rgba(255, 255, 255, 0.1); color: white !important; border-color: rgba(255, 255, 255, 0.3); }
.navbar:not(.scrolled):not(.inner-nav) .btn-contacto:hover { background: rgba(255, 255, 255, 0.25); border-color: white; }
.btn-outline { background: transparent; border: 2px solid var(--clr-white); color: var(--clr-white); }
.btn-outline:hover { background: var(--clr-white); color: var(--clr-primary); }
.glass-btn { background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.2); color: var(--clr-white); }
.glass-btn:hover { background: rgba(255, 255, 255, 0.25); color: var(--clr-white); }

/* =======================================
   Navigation
   ======================================= */
/* For index page with transparent header */
.navbar { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; padding: 1.25rem 0; transition: var(--transition); }
.navbar.scrolled { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); padding: 0.75rem 0; box-shadow: var(--shadow-sm); }
.navbar.scrolled .nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso) { color: var(--clr-dark); }
.navbar.scrolled .logo-text { color: var(--clr-primary); }

/* For inner pages with solid header */
.navbar.inner-nav { background: rgba(255, 255, 255, 0.98); padding: 0.75rem 0; box-shadow: var(--shadow-sm); border-bottom: 1px solid #e2e8f0; }
.navbar.inner-nav .nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso) { color: var(--clr-dark); }
.navbar.inner-nav .logo-text { color: var(--clr-primary); }
.navbar.inner-nav .mobile-menu-btn span { background-color: var(--clr-dark); }

.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo-text { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--clr-white); letter-spacing: -0.5px; transition: var(--transition); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-link { font-family: var(--font-heading); font-weight: 600; color: var(--clr-white); font-size: 1rem; position: relative; transition: var(--transition); }
.nav-link.active-link { color: var(--clr-secondary); }
.navbar.inner-nav .nav-link.active-link { color: var(--clr-primary); font-weight: 800; }
.navbar.scrolled .nav-link.active-link { color: var(--clr-primary); }

.nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso)::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background-color: var(--clr-secondary); transition: var(--transition); }
.nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso):hover::after, .nav-link.active-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso)::after { width: 100%; }
.navbar.inner-nav .nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso)::after, .navbar.scrolled .nav-link:not(.btn-primary):not(.btn-contacto):not(.btn-ingreso)::after { background-color: var(--clr-primary); }

.mobile-menu-btn { display: none; flex-direction: column; gap: 6px; cursor: pointer; z-index: 1001; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background-color: var(--clr-white); transition: var(--transition); }
.navbar.scrolled .mobile-menu-btn span { background-color: var(--clr-dark); }

/* =======================================
   Hero Section (Index)
   ======================================= */
.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-top: 5rem; overflow: hidden; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.05); }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: var(--grad-dark); z-index: 0; }
.hero-content { position: relative; z-index: 1; color: var(--clr-white); max-width: 800px; }
.badge { display: inline-block; padding: 0.5rem 1rem; background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(4px); border: 1px solid rgba(255, 255, 255, 0.3); border-radius: var(--radius-pill); font-family: var(--font-heading); font-weight: 600; font-size: 0.875rem; margin-bottom: 1.5rem; text-transform: uppercase; letter-spacing: 1px; }
.hero-title { font-size: clamp(2.5rem, 5vw, 4.5rem); color: var(--clr-white); margin-bottom: 1.5rem; text-wrap: balance; }
.hero-title span { color: var(--clr-primary-light); }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.25rem); margin-bottom: 2.5rem; color: rgba(255, 255, 255, 0.9); max-width: 600px; text-wrap: balance; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.scroll-indicator { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 2; }
.mouse { width: 26px; height: 42px; border: 2px solid var(--clr-white); border-radius: 15px; position: relative; }
.mouse::before { content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; background: var(--clr-white); border-radius: 2px; animation: scroll 2s infinite; }
@keyframes scroll { 0% { transform: translate(-50%, 0); opacity: 1; } 100% { transform: translate(-50%, 15px); opacity: 0; } }

/* =======================================
   Inner Pages Header / Titles
   ======================================= */
.page-header { background: var(--clr-primary); color: var(--clr-white); padding: 10rem 0 6rem; text-align: center; position: relative; overflow: hidden; }
.page-header::before { content: ''; position: absolute; top: -50%; left: -10%; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); }
.page-header::after { content: ''; position: absolute; bottom: -50%; right: -10%; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(0,0,0,0.1) 0%, transparent 70%); }
.page-title { font-size: clamp(2.5rem, 4vw, 3.5rem); color: var(--clr-white); position: relative; z-index: 1; margin-bottom: 1rem; }
.page-desc { font-size: 1.25rem; color: rgba(255,255,255,0.9); max-width: 600px; margin: 0 auto; position: relative; z-index: 1; text-wrap: balance; }

/* =======================================
   About  Section components
   ======================================= */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid #E2E8F0; }
.stat-number { font-size: 2.5rem; color: var(--clr-secondary); margin-bottom: 0.25rem; font-weight: 800; }
.stat-label { font-size: 0.875rem; font-weight: 600; color: #475569; text-transform: uppercase; letter-spacing: 0.5px; }

.about-images { position: relative; }
.img-main { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4/5; background-color: var(--clr-primary); position: relative; }
.img-placeholder { width: 100%; height: 100%; background: linear-gradient(45deg, var(--clr-primary), var(--clr-secondary)); opacity: 0.8; display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; font-family: var(--font-heading); font-size: 2rem;}

.img-secondary { position: absolute; bottom: -3rem; left: -2rem; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(16px); padding: 1.5rem; border-radius: var(--radius-md); box-shadow: var(--shadow-md); border: 1px solid rgba(255, 255, 255, 0.5); z-index: 2; width: 110%; }
.img-secondary h3 { color: var(--clr-primary); font-size: 1.25rem; margin-bottom: 1rem; }
.img-secondary ul { display: flex; flex-direction: column; gap: 0.75rem; }
.img-secondary li { font-weight: 600; color: var(--clr-dark); display: flex; align-items: center; font-size: 0.95rem; }

/* =======================================
   Capacitaciones Grid / Components
   ======================================= */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2.5rem; }
.glass-card { background: var(--clr-white); border-radius: var(--radius-md); padding: 2.5rem 2rem; box-shadow: var(--shadow-md); transition: var(--transition); border: 1px solid rgba(0, 0, 0, 0.05); display: flex; flex-direction: column; height: 100%; position: relative; overflow: hidden; }
.glass-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); border-color: rgba(56, 132, 192, 0.3); }
.glass-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 0; background: var(--grad-primary); transition: var(--transition); }
.glass-card:hover::before { height: 6px; }
.card-icon { font-size: 3rem; margin-bottom: 1.5rem; display: inline-block; padding: 1.2rem; background: var(--clr-light); border-radius: 1rem; color: var(--clr-primary); }
.card-title { font-size: 1.5rem; margin-bottom: 1rem; }
.card-desc { color: #64748B; margin-bottom: 2rem; flex-grow: 1; }

.content-block { background: var(--clr-white); padding: 3rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); margin-bottom: 2rem; }
.content-block ul { list-style: disc; margin-left: 1.5rem; margin-top: 1rem; color: #475569; }
.content-block ul li { margin-bottom: 0.5rem; }

/* =======================================
   CTA / Forms Section
   ======================================= */
.cta-section { position: relative; padding: 6rem 0; background-color: var(--clr-primary); overflow: hidden; }
.cta-bg-shape { position: absolute; top: -50%; right: -10%; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%); z-index: 0; }
.cta-container { position: relative; z-index: 1; text-align: center; }
.cta-content { max-width: 800px; margin: 0 auto; }
.cta-title { color: var(--clr-white); font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.5rem; }
.cta-desc { color: rgba(255, 255, 255, 0.9); font-size: 1.25rem; margin-bottom: 2.5rem; }
.cta-buttons { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact-info-card { background: var(--clr-white); padding: 2rem; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin-bottom: 1.5rem; display: flex; align-items: flex-start; gap: 1rem; }
.contact-icon { font-size: 1.5rem; color: var(--clr-primary); background: var(--clr-light); padding: 1rem; border-radius: 50%; }

/* =======================================
   Footer
   ======================================= */
.footer { background-color: var(--clr-dark); color: rgba(255, 255, 255, 0.7); padding-top: 5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; margin-bottom: 4rem; }
.footer-brand .logo-text { display: block; margin-bottom: 0.5rem; color: var(--clr-white); }
.footer-slogan { font-family: var(--font-heading); font-size: 1.25rem; color: var(--clr-white); margin-bottom: 1rem; }
.footer h4 { color: var(--clr-white); font-size: 1.25rem; margin-bottom: 1.5rem; }
.footer ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer a:hover { color: var(--clr-white); }
.footer-contact p { margin-bottom: 0.75rem; display: flex; align-items: flex-start; gap: 0.5rem; }
.social-links { display: flex; gap: 1rem; margin-top: 1.5rem; }
.social-icon { width: 40px; height: 40px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); display: flex; align-items: center; justify-content: center; color: var(--clr-white); font-weight: bold; }
.social-icon:hover { background: var(--clr-secondary); color: var(--clr-white); transform: translateY(-3px); }
.footer-bottom { background-color: rgba(0, 0, 0, 0.2); padding: 1.5rem 0; text-align: center; font-size: 0.875rem; }

/* =======================================
   Animations & Responsive
   ======================================= */
.fade-in-up { opacity: 0; transform: translateY(30px); animation: fadeInUp 0.8s forwards; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }
.scroll-reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.scroll-reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
    .img-secondary { left: 0; right: 0; width: 100%; bottom: -1.5rem; position: relative; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    :root { --section-padding: 4rem 0; }
    .stats-grid { grid-template-columns: 1fr; text-align: center; }
    .nav-links { position: fixed; top: 0; right: -100%; width: 80%; height: 100vh; background: var(--clr-white); flex-direction: column; justify-content: center; padding: 2rem; box-shadow: -10px 0 30px rgba(0,0,0,0.1); transition: var(--transition); }
    .nav-links.active { right: 0; }
    .nav-link { color: var(--clr-dark) !important; font-size: 1.25rem; }
    .mobile-menu-btn { display: flex; }
    .mobile-menu-btn.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); background-color: var(--clr-dark); }
    .mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
    .mobile-menu-btn.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); background-color: var(--clr-dark); }
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}