/* ===== Nixon Saavedra — sistema de diseño compartido (basado en propuesta E) ===== */
:root{
  --bg:#f6f2e9;
  --bg-alt:#eee6d4;
  --ink:#20211d;
  --muted:#65685f;
  --gold:#b8923a;
  --wine:#c1652f;
  --steel:#2f6f68;
  --accent:var(--steel); /* color principal de interacción (nav, hover, botones) */
  --line:rgba(32,33,29,.13);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--ink);
  font-family:'Space Grotesk',sans-serif;
  overflow-x:hidden;
  cursor:none;
}
::selection{background:var(--accent);color:var(--bg-alt);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.serif{font-family:'Fraunces',serif;}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:2;}

/* grain + mesh bg */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;}
.mesh{position:absolute;inset:-10%;filter:blur(110px);opacity:.22;}
.blob{position:absolute;border-radius:50%;mix-blend-mode:multiply;animation:float 22s ease-in-out infinite;}
.b1{width:38vw;height:38vw;background:var(--steel);top:-10%;left:-5%;animation-delay:0s;}
.b2{width:30vw;height:30vw;background:var(--wine);bottom:0;right:-5%;animation-delay:-7s;}
.b3{width:26vw;height:26vw;background:var(--gold);top:40%;left:35%;animation-delay:-13s;}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1);}
  33%{transform:translate(4%,6%) scale(1.08);}
  66%{transform:translate(-5%,-4%) scale(.95);}
}
.grain{position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");opacity:.45;}

/* cursor */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:999;border-radius:50%;transform:translate(-50%,-50%);}
.cursor-dot{width:6px;height:6px;background:var(--accent);}
.cursor-ring{width:34px;height:34px;border:1px solid var(--line);transition:transform .15s ease,border-color .2s;}
@media(max-width:900px){.cursor-dot,.cursor-ring{display:none;}body{cursor:auto;}}

/* header */
header{position:sticky;top:0;left:0;right:0;z-index:100;padding:22px 0;background:rgba(247,244,236,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
nav{display:flex;justify-content:space-between;align-items:center;}
.brand{font-family:'Fraunces',serif;font-weight:600;font-size:19px;}
.navlinks{display:flex;gap:30px;font-size:13px;letter-spacing:.5px;text-transform:uppercase;}
.navlinks a{color:var(--muted);transition:color .2s;}
.navlinks a:hover,.navlinks a.active{color:var(--accent);}

/* marquee */
.marquee{position:relative;z-index:2;border-bottom:1px solid var(--line);padding:16px 0;overflow:hidden;white-space:nowrap;background:rgba(244,241,234,.03);}
.marquee-track{display:inline-block;animation:scroll-left 26s linear infinite;font-family:'Fraunces',serif;font-style:italic;font-size:20px;color:var(--muted);}
.marquee-track span{margin:0 34px;}
.marquee-track span.hi{color:var(--accent);font-style:normal;font-family:'Space Grotesk',sans-serif;font-weight:600;}
@keyframes scroll-left{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* home hero */
.hero{min-height:88vh;display:flex;flex-direction:column;justify-content:center;padding:90px 0;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:60px;align-items:center;}
.hero-photo{aspect-ratio:4/5;border-radius:22px;border:1px solid var(--line);background:linear-gradient(150deg,#3c342a,#221c15);display:flex;align-items:center;justify-content:center;color:rgba(247,244,236,.55);font-size:12px;letter-spacing:1px;text-transform:uppercase;text-align:center;padding:20px;overflow:hidden;}
.hero-photo img{width:100%;height:100%;object-fit:cover;border-radius:22px;}

/* retrato circular — para fotos ya recortadas en círculo */
.photo-round{aspect-ratio:1/1;border-radius:50%;overflow:hidden;border:1px solid var(--line);background:var(--bg-alt);}
.photo-round img{width:100%;height:100%;object-fit:cover;display:block;}
.hero .kicker{font-size:13px;letter-spacing:4px;text-transform:uppercase;color:var(--gold);margin-bottom:26px;}
.hero h1{font-family:'Fraunces',serif;font-weight:900;font-size:clamp(42px,7.5vw,100px);line-height:.98;letter-spacing:-2px;}
.hero h1 .line2{display:block;font-style:italic;font-weight:500;color:var(--muted);font-size:.55em;margin-top:10px;}
.hero p{max-width:520px;color:var(--muted);font-size:17px;margin-top:34px;}
.roles-float{display:flex;gap:14px;flex-wrap:wrap;margin-top:40px;}
.roles-float span{border:1px solid var(--line);padding:9px 18px;border-radius:30px;font-size:12.5px;letter-spacing:.5px;backdrop-filter:blur(6px);transition:.25s;}
.roles-float span:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);}

/* interior page hero */
.page-hero{padding:70px 0 60px;border-bottom:1px solid var(--line);}
.breadcrumb{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--accent);}
.page-hero h1{font-family:'Fraunces',serif;font-weight:700;font-size:clamp(36px,6vw,64px);line-height:1.02;}
.page-hero .lede{max-width:620px;color:var(--muted);font-size:17px;margin-top:22px;}

section{position:relative;padding:100px 0;z-index:2;}
section.tight{padding:70px 0;}
.num-tag{font-family:'Fraunces',serif;font-style:italic;color:var(--muted);font-size:15px;margin-bottom:18px;}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

.split-head{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end;margin-bottom:60px;}
.split-head h2{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(30px,4vw,48px);line-height:1.05;}
.split-head p{color:var(--muted);font-size:16px;}

/* prose */
.content-prose{max-width:680px;}
.content-prose p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:20px;}
.content-prose h3{font-family:'Fraunces',serif;font-size:22px;margin:36px 0 14px;color:var(--ink);}

/* credentials grid */
.cred-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:2px;overflow:hidden;}
.cred{background:var(--bg);padding:34px 28px;}
.cred b{font-family:'Fraunces',serif;font-size:18px;display:block;margin-bottom:8px;}
.cred span{color:var(--muted);font-size:13px;}

/* teaser cards — home */
.teaser-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.teaser-card{border:1px solid var(--line);border-radius:20px;padding:36px;background:linear-gradient(160deg,rgba(33,29,24,.035),transparent);transition:transform .2s,border-color .3s;}
.teaser-card:hover{transform:translateY(-6px);border-color:var(--accent);}
.teaser-card .tag{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--gold);}
.teaser-card h3{font-family:'Fraunces',serif;font-size:26px;margin:14px 0 12px;}
.teaser-card p{color:var(--muted);font-size:14.5px;margin-bottom:20px;}
.teaser-card .go{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.teaser-card .go::after{content:"→";transition:transform .2s;}
.teaser-card:hover .go::after{transform:translateX(4px);}

/* image / video placeholders */
.img-block{aspect-ratio:4/3;border-radius:16px;border:1px solid var(--line);background:linear-gradient(150deg,#3c342a,#221c15);display:flex;align-items:center;justify-content:center;color:rgba(247,244,236,.55);font-size:12px;letter-spacing:1px;text-transform:uppercase;text-align:center;padding:20px;}
.video-block{aspect-ratio:16/9;border-radius:16px;border:1px solid var(--line);background:linear-gradient(150deg,#3c342a,#221c15);display:flex;align-items:center;justify-content:center;position:relative;}
.video-block .play{width:64px;height:64px;border-radius:50%;border:1px solid var(--accent);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:20px;}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}

/* campus / courses */
.filter-tabs{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px;}
.filter-tabs button{background:transparent;border:1px solid var(--line);color:var(--muted);padding:9px 18px;border-radius:24px;font-family:'Space Grotesk',sans-serif;font-size:12.5px;letter-spacing:.5px;text-transform:uppercase;cursor:pointer;transition:.2s;}
.filter-tabs button.active,.filter-tabs button:hover{border-color:var(--accent);color:var(--accent);}
.campus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.course-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:linear-gradient(160deg,rgba(33,29,24,.035),transparent);transform-style:preserve-3d;transition:transform .15s ease,border-color .3s;}
.course-card:hover{border-color:var(--accent);}
.course-card .thumb{aspect-ratio:16/10;background:linear-gradient(150deg,#3c342a,#221c15);}
.course-card .body{padding:26px;}
.course-card .cat{display:inline-block;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;padding:5px 12px;border-radius:20px;margin-bottom:16px;}
.cat-en{background:color-mix(in srgb, var(--gold) 18%, transparent);color:var(--gold);}
.cat-ai{background:color-mix(in srgb, var(--steel) 20%, transparent);color:var(--steel);}
.cat-edu{background:color-mix(in srgb, var(--wine) 18%, transparent);color:var(--wine);}
.course-card h3{font-family:'Fraunces',serif;font-size:21px;margin-bottom:10px;}
.course-card p{color:var(--muted);font-size:13.5px;margin-bottom:20px;}
.course-card .meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;}
.course-card .status{color:var(--ink);font-weight:600;}

/* timeline */
.timeline-v{border-left:1px solid var(--line);padding-left:34px;display:flex;flex-direction:column;gap:34px;}
.tl-item{position:relative;}
.tl-item::before{content:"";position:absolute;left:-40px;top:4px;width:9px;height:9px;border-radius:50%;background:var(--gold);}
.tl-item b{font-family:'Fraunces',serif;font-size:17px;display:block;margin-bottom:6px;}
.tl-item span{color:var(--muted);font-size:13px;}

/* book gallery (obra) */
.book-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.book-tile{aspect-ratio:3/4;border-radius:14px;background:linear-gradient(150deg,#3c342a,#221c15);border:1px solid var(--line);display:flex;align-items:flex-end;padding:20px;font-family:'Fraunces',serif;font-style:italic;font-size:16px;color:rgba(247,244,236,.85);transition:transform .3s;}
.book-tile:hover{transform:translateY(-8px) rotate(-1deg);}
.book-detail{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start;padding:44px 0;border-top:1px solid var(--line);}
.book-detail h3{font-family:'Fraunces',serif;font-size:26px;margin-bottom:14px;}
.book-detail p{color:var(--muted);font-size:14.5px;line-height:1.8;margin-bottom:18px;}

/* cta band */
.cta-band{background:var(--ink);color:var(--bg);border-radius:28px;padding:80px 60px;text-align:center;}
.cta-band h2{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(28px,4vw,44px);max-width:720px;margin:0 auto 26px;}
.btn{display:inline-block;padding:15px 32px;border-radius:40px;font-size:13.5px;font-weight:600;letter-spacing:.5px;transition:.2s;}
.btn-light{background:var(--bg);color:var(--ink);}
.btn-outline{border:1px solid var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-gold{background:var(--gold);color:var(--bg);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-disabled{background:var(--bg-alt);color:var(--muted);cursor:not-allowed;pointer-events:none;}

/* tienda */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.product-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:linear-gradient(160deg,rgba(33,29,24,.035),transparent);transition:transform .15s ease,border-color .3s;}
.product-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.product-card .thumb{aspect-ratio:4/5;background:linear-gradient(150deg,#3c342a,#221c15);}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;}
.product-card .body{padding:22px;}
.product-card h3{font-family:'Fraunces',serif;font-size:19px;margin-bottom:8px;}
.product-card p{color:var(--muted);font-size:13px;margin-bottom:16px;}
.product-card .price-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
.product-card .price{font-family:'Fraunces',serif;font-size:19px;}
.status-badge{font-size:10px;letter-spacing:1px;text-transform:uppercase;padding:4px 10px;border-radius:20px;background:var(--bg-alt);color:var(--muted);}
.buy-btn{display:block;text-align:center;width:100%;padding:12px;border-radius:10px;font-size:13px;font-weight:600;letter-spacing:.3px;border:none;}

/* form */
.form-grid{max-width:560px;display:flex;flex-direction:column;gap:20px;}
.form-group label{display:block;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.form-group input,.form-group textarea{width:100%;background:var(--bg-alt);border:1px solid var(--line);border-radius:10px;padding:14px 16px;color:var(--ink);font-family:'Space Grotesk',sans-serif;font-size:14px;}
.form-group textarea{min-height:130px;resize:vertical;}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;}
.contact-info .item{border-top:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;font-size:14px;}
.contact-info .item span:first-child{color:var(--muted);}
.contact-info .item a:hover{color:var(--accent);}

/* footer */
footer{padding:70px 0 50px;border-top:1px solid var(--line);}
.foot-grid{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:30px;}
.foot-brand{font-family:'Fraunces',serif;font-weight:600;font-size:24px;}
.socials{display:flex;gap:16px;}
.socials a{border:1px solid var(--line);border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:13px;transition:.2s;}
.socials a:hover{border-color:var(--accent);color:var(--accent);}

@media(max-width:900px){
  .navlinks{display:none;}
  .split-head,.cred-grid,.campus-grid,.book-row,.teaser-grid,.gallery-grid,.book-detail,.contact-grid,.hero-grid{grid-template-columns:1fr;}
  .hero-photo{aspect-ratio:4/3;margin-top:36px;}
  .cta-band{padding:50px 26px;}
}