/* ============================================================
   Luciano Dallavia · Academia Digital & IA
   Sistema de diseño — Academic Intelligence System (DESIGN.md)
   Tema claro institucional · guinda #8f000d · Montserrat/Inter/Mono
   ============================================================ */

:root{
  /* Superficies */
  --surface:#f8f9fb; --white:#ffffff;
  --sc-lowest:#ffffff; --sc-low:#f2f4f6; --sc:#eceef0; --sc-high:#e6e8ea; --sc-highest:#e0e3e5;
  --paper:#f8f9fb; --paper-2:#f2f4f6;
  /* Tinta */
  --ink:#191c1e; --ink-2:#3a3f42; --ink-soft:#5f5e5e; --inverse:#2d3133;
  /* Marca */
  --primary:#8f000d; --primary-dk:#410003; --primary-ct:#b22222; --primary-fixed:#ffdad6; --on-primary:#ffffff;
  --accent-soft:#ffb4ac;
  /* Líneas */
  --hairline:#e2e8f0; --hairline-2:#e2beba; --outline:#8e706d;
  /* Tipografía */
  --f-display:'Montserrat',system-ui,sans-serif;
  --f-body:'Inter',system-ui,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,monospace;
  /* Radios */
  --r-sm:.125rem; --r:.25rem; --r-md:.375rem; --r-lg:.5rem; --r-xl:.75rem; --r-full:9999px;
  /* Espacios */
  --container:1280px; --gutter:24px; --header-h:76px;
  --shadow-hover:0 4px 18px rgba(25,28,30,.08);
  --shadow-card:0 1px 2px rgba(25,28,30,.04);
}

*{box-sizing:border-box}
html,body{overflow-x:clip}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--f-body);color:var(--ink);background:var(--surface);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.15;letter-spacing:-.02em;margin:0;color:var(--ink)}
p{margin:0}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.mono-label{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--primary)}
.skip-link{position:fixed;left:-999px;top:0;z-index:2000;background:var(--primary);color:#fff;padding:.6rem 1rem;border-radius:0 0 var(--r) 0}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- HEADER STICKY ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:box-shadow .3s ease}
.site-header::before{content:"";position:absolute;inset:0;background:transparent;transition:background .3s ease,backdrop-filter .3s ease;z-index:-1;border-bottom:1px solid transparent}
.site-header.scrolled::before{background:rgba(248,249,251,.82);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--hairline)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:.75rem;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);height:var(--header-h)}
.brand{flex:1 1 0;white-space:nowrap;display:flex;align-items:center}
.brand img{height:38px;width:auto}
.brand .logo-white{display:none}
.nav-menu{flex:0 0 auto;display:flex;align-items:center;justify-content:center;gap:.35rem;list-style:none;margin:0;padding:0}
.nav-actions{flex:1 1 0;display:flex;align-items:center;justify-content:flex-end;gap:.6rem}

.nav-item>a{position:relative;display:inline-flex;align-items:center;gap:.35rem;padding:.55rem .8rem;font-weight:600;font-size:.92rem;color:var(--ink);border-radius:var(--r)}
.nav-item>a::after{content:"";position:absolute;left:.8rem;right:.8rem;bottom:.35rem;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.nav-item:hover>a::after,.nav-item.is-active>a::after{transform:scaleX(1)}
.nav-item.is-active>a{color:var(--primary)}
.caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6;transition:transform .28s ease}
.nav-item.has-mega:hover .caret{transform:rotate(-135deg) translateY(2px)}

/* Header transparente sobre hero (texto claro) */
.body-hero .site-header:not(.scrolled) .nav-item>a,
.body-hero .site-header:not(.scrolled) .brand{color:#fff}
.body-hero .site-header:not(.scrolled) .caret{color:#fff}
.body-hero .site-header:not(.scrolled) .brand .logo-color{display:none}
.body-hero .site-header:not(.scrolled) .brand .logo-white{display:block}
.body-hero .site-header:not(.scrolled) .hamb span{background:#fff}

/* CTA con latido */
.cta-pulse{display:inline-flex;align-items:center;white-space:nowrap;padding:.6rem 1.15rem;background:var(--primary);color:var(--on-primary)!important;font-weight:700;font-size:.86rem;letter-spacing:.01em;border-radius:var(--r);animation:pulseGlow 2.4s ease-in-out infinite;transition:transform .2s ease}
.cta-pulse:hover{animation-play-state:paused;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(143,0,13,.18)}
@keyframes pulseGlow{0%,100%{box-shadow:0 0 0 0 rgba(143,0,13,.28);transform:scale(1)}50%{box-shadow:0 0 0 7px rgba(143,0,13,0);transform:scale(1.02)}}

/* Hamburguesa */
.hamb{display:none;flex-direction:column;justify-content:center;gap:5px;width:46px;height:46px;padding:11px;background:none;border:0;cursor:pointer}
.hamb span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:.3s}

/* ---------- MEGA MENÚ ---------- */
.has-mega{position:static}
.mega{--mega-shift:0px;position:absolute;left:50%;top:calc(var(--header-h) - 22px);width:min(960px,calc(100vw - 32px));padding-top:22px;
  transform:translateX(calc(-50% + var(--mega-shift))) translateY(-8px);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .26s ease,transform .26s ease,visibility 0s .26s;z-index:1001}
.nav-item.has-mega:hover .mega,.nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(calc(-50% + var(--mega-shift))) translateY(0);transition:opacity .26s ease,transform .26s ease}
.mega-inner{background:var(--white);border:1px solid var(--hairline);border-radius:var(--r-lg);box-shadow:0 24px 60px rgba(25,28,30,.14);overflow:hidden}
.mega-head{padding:1.3rem 1.5rem 1rem;border-bottom:1px solid var(--hairline);background:var(--paper-2)}
.mega-head h3{font-size:1.15rem;margin:.35rem 0 .3rem}
.mega-head p{color:var(--ink-soft);font-size:.9rem}
.mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hairline)}
.mega-card{display:flex;flex-direction:column;gap:.3rem;padding:1rem 1.05rem;background:var(--white);transition:background .2s ease}
.mega-card:hover{background:var(--paper-2)}
.mega-num{font-family:var(--f-mono);font-size:.72rem;color:var(--primary);font-weight:500}
.mega-tag{font-family:var(--f-mono);font-size:.66rem;color:var(--ink-soft);letter-spacing:.04em}
.mega-title{font-family:var(--f-display);font-weight:700;font-size:.92rem;line-height:1.2;color:var(--ink)}
.mega-desc{font-size:.78rem;color:var(--ink-soft);line-height:1.45}
.mega-foot{padding:.9rem 1.5rem;border-top:1px solid var(--hairline);background:var(--paper-2)}
.mega-all{font-weight:700;color:var(--primary);font-size:.9rem}

/* ---------- PANEL MÓVIL ---------- */
.mobile-panel{position:fixed;inset:0;height:100dvh;background:var(--white);z-index:1300;transform:translateX(100%);transition:transform .34s cubic-bezier(.4,0,.2,1);visibility:hidden;display:flex;flex-direction:column;overflow-y:auto}
.mobile-panel.open{transform:translateX(0);visibility:visible}
.mobile-top{display:flex;align-items:center;justify-content:space-between;padding:1.1rem var(--gutter);border-bottom:1px solid var(--hairline)}
.mobile-close{background:none;border:0;font-size:1.5rem;color:var(--ink);cursor:pointer;width:44px;height:44px;line-height:1}
.mobile-search{padding:1rem var(--gutter) .5rem}
.mobile-search input{width:100%;padding:.8rem 1rem;border:1px solid var(--hairline);border-radius:var(--r);font-family:var(--f-body);font-size:1rem}
.mobile-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(143,0,13,.12)}
.mobile-nav{display:flex;flex-direction:column;padding:.5rem var(--gutter) 2rem}
.mobile-nav>a{padding:.85rem .2rem;font-weight:600;font-size:1.05rem;border-bottom:1px solid var(--hairline)}
.mobile-sub{display:flex;flex-direction:column;padding:.4rem 0 .4rem .8rem;border-left:2px solid var(--primary-fixed);margin:.3rem 0}
.mobile-sub a{padding:.5rem .2rem;font-size:.88rem;color:var(--ink-2);display:flex;gap:.5rem}
.mobile-cta{margin-top:1rem;background:var(--primary);color:#fff!important;text-align:center;border-radius:var(--r);padding:.9rem!important;border:0!important}
.search-results{margin-top:.4rem}
.search-results a{display:block;padding:.55rem .3rem;border-bottom:1px solid var(--hairline);font-size:.9rem}
.search-results .sr-d{font-size:.75rem;color:var(--ink-soft)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding-top:var(--header-h);padding-bottom:2rem;overflow:hidden;background:var(--primary-dk)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;opacity:0;z-index:0;transition:opacity 1.1s cubic-bezier(.37,.01,.24,1)}
.hero-slide.active{opacity:1;z-index:2}
.hero-slide.leaving{opacity:1;z-index:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;backface-visibility:hidden;transform:translateZ(0)}
.hero-slide.active img,.hero-slide.leaving img{animation:kenBurns 9s linear forwards}
@keyframes kenBurns{from{transform:scale(1.02) translateX(0)}to{transform:scale(1.1) translateX(-1%)}}
.hero-veil{position:absolute;inset:0;z-index:3;background:linear-gradient(90deg,rgba(20,0,2,.82) 0%,rgba(20,0,2,.55) 45%,rgba(20,0,2,.28) 100%)}
.hero-inner{position:relative;z-index:4;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);width:100%;color:#fff}
.hero-eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-soft);margin-bottom:1.1rem}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-soft);animation:blink 1.6s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem);font-weight:800;line-height:1.05;max-width:16ch;min-height:1.1em;color:#fff}
.hero h1 .w{display:inline-block;margin-right:.26em}
.hero h1 .accent{color:var(--accent-soft)}
.hero-sub{margin:1.3rem 0 0;font-size:clamp(1.02rem,1.6vw,1.22rem);max-width:52ch;color:#ecebeb;transition:opacity .42s ease,transform .42s ease}
.hero-sub.is-out{opacity:0;transform:translateY(8px)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.5rem;border-radius:var(--r);font-weight:700;font-size:.95rem;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(143,0,13,.35)}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-ghost{background:transparent;color:#fff;opacity:.85}
.btn-ghost:hover{opacity:1}
.hero-arrows{position:absolute;inset:0;z-index:4;pointer-events:none}
.hero-arrow{pointer-events:auto;position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.06);backdrop-filter:blur(6px);border-radius:var(--r-full);color:#fff;cursor:pointer;opacity:0;transition:opacity .3s ease,background .2s ease;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.hero:hover .hero-arrow{opacity:1}
.hero-arrow:hover{background:rgba(255,255,255,.18)}
.hero-arrow.prev{left:20px}.hero-arrow.next{right:20px}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:5;display:flex;gap:10px}
.hero-dots button{width:34px;height:4px;border:0;border-radius:var(--r-full);background:rgba(255,255,255,.35);cursor:pointer;overflow:hidden;position:relative;padding:0}
.hero-dots button .fill{position:absolute;inset:0;background:var(--accent-soft);transform:scaleX(0);transform-origin:left}
.hero-dots button.active .fill{animation:dotFill 7s linear forwards}
@keyframes dotFill{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ---------- SECCIONES ---------- */
.section{padding:clamp(60px,9vw,110px) 0}
.section.alt{background:var(--paper-2);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.section-head{max-width:760px;margin-bottom:2.6rem}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.9rem,3.6vw,2.7rem);margin:.5rem 0 .7rem}
.section-head p{color:var(--ink-soft);font-size:1.05rem}
.eyebrow{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--primary)}

/* Reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.reveal-d1{transition-delay:.09s}.reveal-d2{transition-delay:.18s}.reveal-d3{transition-delay:.27s}

/* ---------- TARJETAS DE CURSO ---------- */
.course-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.course-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--hairline);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--hairline-2)}
.course-cover{position:relative;aspect-ratio:800/520;overflow:hidden;background:var(--primary-dk)}
.course-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.course-card:hover .course-cover img{transform:scale(1.04)}
.course-badge{position:absolute;top:.7rem;left:.7rem;background:rgba(255,255,255,.92);color:var(--primary);font-family:var(--f-mono);font-size:.68rem;padding:.28rem .55rem;border-radius:var(--r-full);font-weight:500}
.course-body{padding:1.15rem 1.2rem 1.3rem;display:flex;flex-direction:column;flex:1}
.course-tag{font-family:var(--f-mono);font-size:.68rem;color:var(--ink-soft);letter-spacing:.03em;margin-bottom:.4rem}
.course-body h3{font-size:1.08rem;line-height:1.25;margin-bottom:.5rem}
.course-body p{font-size:.88rem;color:var(--ink-soft);flex:1}
.course-link{margin-top:.9rem;font-weight:700;color:var(--primary);font-size:.9rem;display:inline-flex;align-items:center;gap:.3rem;transition:gap .2s ease}
.course-card:hover .course-link{gap:.6rem}

/* Chips */
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font-family:var(--f-mono);font-size:.72rem;padding:.35rem .75rem;background:var(--sc-low);border:1px solid var(--hairline);color:var(--ink-2);border-radius:var(--r-full)}

/* ---------- SIGNATURE: NAVEGADOR DE MÓDULOS (syllabus) ---------- */
.syllabus{display:flex;flex-direction:column;gap:0;counter-reset:mod}
.mod{position:relative;padding:0 0 1.6rem 3.4rem;border-left:2px solid var(--hairline);margin-left:1.1rem}
.mod:last-child{border-left-color:transparent}
.mod::before{counter-increment:mod;content:counter(mod,decimal-leading-zero);position:absolute;left:-1.1rem;top:0;width:2.2rem;height:2.2rem;border-radius:var(--r-full);background:var(--white);border:2px solid var(--primary);color:var(--primary);font-family:var(--f-mono);font-size:.78rem;font-weight:500;display:flex;align-items:center;justify-content:center}
.mod-head{cursor:pointer;list-style:none;display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding-top:.15rem}
.mod-head::-webkit-details-marker{display:none}
.mod-head h3{font-size:1.05rem;line-height:1.35;font-family:var(--f-display);font-weight:700}
.mod-toggle{flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-full);border:1px solid var(--hairline);position:relative;transition:.25s;margin-top:2px}
.mod-toggle::before,.mod-toggle::after{content:"";position:absolute;background:var(--primary);left:50%;top:50%;transform:translate(-50%,-50%)}
.mod-toggle::before{width:11px;height:2px}
.mod-toggle::after{width:2px;height:11px;transition:transform .25s}
.mod[open] .mod-toggle::after{transform:translate(-50%,-50%) scaleY(0)}
.mod[open] .mod-toggle{background:var(--primary-fixed);border-color:var(--primary-fixed)}
.mod-list{list-style:none;margin:.9rem 0 0;padding:0;display:flex;flex-direction:column;gap:.7rem}
.mod-list li{position:relative;padding-left:1.1rem;font-size:.94rem;color:var(--ink-2);line-height:1.55}
.mod-list li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;background:var(--primary);border-radius:1px;transform:rotate(45deg)}
.mod-list li strong{color:var(--ink);font-weight:700}

/* ---------- PROSA / PANELES ---------- */
.prose p{margin-bottom:1.05rem;color:var(--ink-2);font-size:1.02rem;max-width:70ch}
.prose blockquote{border-left:3px solid var(--primary);padding:.4rem 0 .4rem 1.2rem;margin:1.4rem 0;font-family:var(--f-display);font-weight:600;font-size:1.15rem;color:var(--ink)}
.panel{background:var(--white);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:1.6rem 1.7rem}
.panel-alt{background:var(--paper-2)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}

/* Feature cards (glass-hairline con glow que sigue el cursor) */
.feature{position:relative;background:var(--white);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:1.6rem;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.feature::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .3s ease;background:radial-gradient(340px circle at var(--mx,50%) var(--my,50%),rgba(143,0,13,.06),transparent 60%);pointer-events:none}
.feature:hover{border-color:var(--hairline-2);box-shadow:var(--shadow-hover)}
.feature:hover::before{opacity:1}
.feature-ico{width:46px;height:46px;border-radius:var(--r);background:var(--paper-2);border:1px solid var(--hairline);display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:1rem}
.feature h3{font-size:1.12rem;margin-bottom:.5rem}
.feature p{color:var(--ink-soft);font-size:.94rem}

/* Counters / stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hairline);border:1px solid var(--hairline);border-radius:var(--r-lg);overflow:hidden}
.stat{background:var(--white);padding:1.7rem 1.2rem;text-align:center}
.stat .num{font-family:var(--f-display);font-weight:800;font-size:clamp(2rem,4vw,2.8rem);color:var(--primary);line-height:1}
.stat .lbl{font-family:var(--f-mono);font-size:.72rem;color:var(--ink-soft);letter-spacing:.04em;margin-top:.5rem;text-transform:uppercase}

/* Marquee */
.marquee{overflow:hidden;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);padding:1.1rem 0;background:var(--paper-2)}
.marquee-track{display:flex;gap:3rem;width:max-content;animation:scrollX 32s linear infinite}
.marquee-track span{font-family:var(--f-mono);font-size:.9rem;color:var(--ink-soft);white-space:nowrap}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--primary-dk),var(--primary));color:#fff;border-radius:var(--r-xl);padding:clamp(2.4rem,5vw,3.6rem);text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.4rem);margin-bottom:.8rem}
.cta-band p{color:#f2dede;max-width:56ch;margin:0 auto 1.7rem}

/* ---------- FORMULARIO ---------- */
.form-wrap{background:var(--white);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:clamp(1.6rem,3vw,2.6rem)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.field{display:flex;flex-direction:column;gap:.4rem}
.field.full{grid-column:1/-1}
.field label{font-size:.82rem;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{font-family:var(--f-body);font-size:1rem;padding:.75rem .9rem;border:1px solid var(--hairline);border-radius:var(--r);background:var(--white);color:var(--ink);width:100%}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(143,0,13,.1)}
.field-check{display:flex;align-items:flex-start;gap:.6rem;grid-column:1/-1;font-size:.86rem;color:var(--ink-soft)}
.field-check input{width:auto;margin-top:.2rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{grid-column:1/-1;font-size:.92rem}
.form-status.ok{color:#1a7f37}.form-status.err{color:var(--primary)}
.form-submit{grid-column:1/-1;justify-self:start;border:0;appearance:none;-webkit-appearance:none;cursor:pointer;animation:pulseGlow 2.4s ease-in-out infinite}
.form-submit:hover{animation-play-state:paused;transform:translateY(-1px);box-shadow:0 0 0 4px rgba(143,0,13,.18)}

/* ---------- BREADCRUMB ---------- */
.crumbs{font-family:var(--f-mono);font-size:.74rem;color:var(--ink-soft);padding-top:calc(var(--header-h) + 1.4rem)}
.crumbs a{color:var(--ink-soft)}.crumbs a:hover{color:var(--primary)}
.crumbs .sep{margin:0 .4rem;color:var(--hairline-2)}

/* Page hero (interior) */
.page-hero{position:relative;padding:calc(var(--header-h) + 3rem) 0 3rem;background:var(--paper-2);border-bottom:1px solid var(--hairline);overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--hairline) 1px,transparent 1px),linear-gradient(90deg,var(--hairline) 1px,transparent 1px);background-size:44px 44px;opacity:.35;-webkit-mask-image:radial-gradient(circle at 80% 20%,#000,transparent 60%);mask-image:radial-gradient(circle at 80% 20%,#000,transparent 60%);pointer-events:none}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:clamp(2rem,4.4vw,3.2rem);margin:.7rem 0 .8rem;max-width:20ch}
.page-hero .lead{font-size:1.1rem;color:var(--ink-soft);max-width:60ch}

/* ---------- FOOTER ---------- */
.site-footer{background:#000000;color:#d6dadd;padding:3.4rem 0 2rem;font-size:.92rem}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:.7rem}
.footer-group{display:grid;grid-template-columns:1.1fr 1.4fr;gap:2.6rem;padding-bottom:2.2rem;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand img{height:34px;width:auto;filter:brightness(0) invert(1);margin-bottom:1rem}
.footer-brand p{color:#b4b9bd;margin-bottom:1rem;max-width:44ch}
.footer-brand .mono-label{color:var(--accent-soft)}
.eco-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.9rem}
.eco-list li{display:flex;flex-direction:column;gap:.15rem;padding-bottom:.9rem;border-bottom:1px solid rgba(255,255,255,.08)}
.eco-list li:last-child{border-bottom:0}
.eco-list a{color:#fff;font-weight:700;font-family:var(--f-mono);font-size:.86rem}
.eco-list a:hover{color:var(--accent-soft)}
.eco-list span{color:#a7acb0;font-size:.82rem}
.footer-eco-lead{color:#b4b9bd;margin-bottom:1rem;max-width:52ch}
.footer-director{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.2rem;padding:1.8rem 0;border-bottom:1px solid rgba(255,255,255,.12)}
.director-name{font-family:var(--f-display);font-weight:800;font-size:1.5rem;color:#fff;margin-top:.2rem}
.footer-director .mono-label{color:var(--accent-soft)}
.footer-director-links{display:flex;flex-wrap:wrap;gap:.7rem}
.footer-director-links .btn-outline{border-color:rgba(255,255,255,.35);font-size:.85rem;padding:.6rem 1.1rem;border-radius:var(--r)}
.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:.4rem 0;padding:1.8rem 0;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-nav a{position:relative;padding:.15rem clamp(.75rem,1.4vw,1.2rem);white-space:nowrap;color:#d6dadd;font-weight:600;font-size:.9rem}
.footer-nav a:hover{color:#fff}
.footer-nav a::after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:13px;background:rgba(255,255,255,.18)}
.footer-nav a:last-child::after{display:none}
.footer-bottom{padding-top:1.6rem;text-align:center;color:#9aa0a4;font-size:.82rem;display:flex;flex-direction:column;gap:.35rem}
.footer-bottom a{color:var(--accent-soft);font-weight:600}

/* ---------- WSP BUBBLE ---------- */
.wsp-bubble{position:fixed;right:22px;bottom:22px;z-index:950;width:60px;height:60px;border-radius:var(--r-full);background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.4)}
.wsp-ping{position:absolute;inset:0;border-radius:var(--r-full);background:#25D366;opacity:.5;animation:ping 2.2s cubic-bezier(0,0,.2,1) infinite;z-index:-1}
@keyframes ping{0%{transform:scale(1);opacity:.5}80%,100%{transform:scale(1.7);opacity:0}}
.wsp-tip{position:absolute;right:72px;background:var(--ink);color:#fff;padding:.4rem .7rem;border-radius:var(--r);font-size:.8rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s}
.wsp-bubble:hover .wsp-tip{opacity:1}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1200px){
  .nav-menu{display:none}
  .hamb{display:flex}
  .nav-actions .cta-pulse{display:none}
  .brand{flex:1 1 auto}
  .nav-actions{flex:0 0 auto}
}
@media (max-width:1024px){
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-group{grid-template-columns:1fr;gap:2rem}
  .grid-3{grid-template-columns:1fr}
  .mega-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  :root{--header-h:64px}
  .hero{align-items:flex-start;padding-top:96px}
  .hero-arrows{display:none}
  .hero-eyebrow{letter-spacing:.1em;font-size:.64rem}
  .hero-ctas .btn{width:100%;justify-content:center}
  .course-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .grid-2,.form-grid{grid-template-columns:1fr}
  .footer-director{flex-direction:column;align-items:flex-start}
  .mod{padding-left:2.9rem}
  .section-head p{font-size:1rem}
}
@media (max-width:400px){.stats{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .hero-slide.active img,.hero-slide.leaving img{animation:none;transform:scale(1.02)}
}