/* ============================================
   RUBÉN ALVARADO — sistema visual
   Navy + Turquesa + Hueso, Fraunces + Inter
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --navy: #0F1E33;
  --navy-soft: #1B2C48;
  --turquoise: #1FB6A8;
  --turquoise-deep: #14877C;
  --bone: #F7F5F0;
  --bone-dim: #EDE9E0;
  --ink: #16202B;
  --ink-soft: #4B5563;
  --gold: #C9A24B;
  --line: rgba(15,30,51,0.12);
  --line-on-navy: rgba(247,245,240,0.18);

  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max: 1120px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bone);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}

h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.12;letter-spacing:-0.01em}
h1{font-size:clamp(2.4rem,5.2vw,4.4rem);font-weight:500}
h2{font-size:clamp(1.9rem,3.4vw,2.7rem)}
h3{font-size:1.35rem}
p{color:var(--ink-soft)}
.lede{font-size:1.2rem;line-height:1.6;color:var(--ink-soft);max-width:56ch}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(247,245,240,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 0;
}
.logo{
  font-family:var(--serif);font-size:1.35rem;font-weight:500;
  color:var(--navy);letter-spacing:-0.01em;
}
.logo span{color:var(--turquoise)}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{
  font-size:0.94rem;color:var(--ink);position:relative;padding:4px 0;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:var(--turquoise);transition:width .25s ease;
}
.nav-links a:hover::after{width:100%}
.nav-links a.current{color:var(--turquoise-deep);font-weight:600}
.nav-cta{
  background:var(--navy);color:var(--bone)!important;
  padding:11px 22px;border-radius:2px;font-weight:600;font-size:0.9rem;
}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--turquoise-deep)}
.menu-toggle{display:none;flex-direction:column;gap:5px}
.menu-toggle span{width:24px;height:2px;background:var(--navy)}

@media(max-width:860px){
  .nav-links{
    position:fixed;top:73px;left:0;right:0;bottom:0;
    background:var(--bone);flex-direction:column;align-items:flex-start;
    padding:40px 28px;gap:26px;transform:translateX(100%);
    transition:transform .3s ease;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:1.2rem}
  .menu-toggle{display:flex}
}

/* ---------- hero ---------- */
.hero{
  background:var(--navy);color:var(--bone);
  padding:110px 0 90px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;right:-120px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,182,168,0.18),transparent 70%);
}
.hero .eyebrow{
  color:var(--turquoise);font-weight:600;font-size:0.92rem;
  margin-bottom:18px;
}
.hero h1{max-width:820px;margin-bottom:26px}
.hero .lede{color:rgba(247,245,240,0.78);margin-bottom:38px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}

.btn{
  display:inline-block;padding:14px 28px;font-weight:600;font-size:0.95rem;
  border-radius:2px;transition:all .2s ease;
}
.btn-primary{background:var(--turquoise);color:var(--navy)}
.btn-primary:hover{background:#28cfc0}
.btn-ghost{border:1px solid var(--line-on-navy);color:var(--bone)}
.btn-ghost:hover{border-color:var(--turquoise);color:var(--turquoise)}
.btn-dark{background:var(--navy);color:var(--bone)}
.btn-dark:hover{background:var(--turquoise-deep)}
.btn-outline-dark{border:1px solid var(--navy);color:var(--navy)}
.btn-outline-dark:hover{background:var(--navy);color:var(--bone)}

/* ---------- sections ---------- */
section{padding:96px 0}
section.tight{padding:64px 0}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;margin-bottom:52px;flex-wrap:wrap;
}
.section-head .tag{
  font-size:0.85rem;font-weight:600;color:var(--turquoise-deep);
  margin-bottom:12px;display:block;
}
.section-head h2{max-width:560px}
.section-head .side-link{font-weight:600;font-size:0.94rem;white-space:nowrap;border-bottom:1px solid var(--navy);padding-bottom:2px}

.divider{height:1px;background:var(--line);border:none;margin:0}

/* ---------- proof strip ---------- */
.proof{background:var(--bone-dim);padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.proof .wrap{display:flex;gap:44px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.proof-item{font-family:var(--serif);font-size:1.05rem;color:var(--navy)}
.proof-item b{color:var(--turquoise-deep);font-size:1.3rem;margin-right:6px}

/* ---------- about teaser / grid ---------- */
.about-grid{
  display:grid;grid-template-columns:0.9fr 1.1fr;gap:64px;align-items:start;
}
@media(max-width:860px){.about-grid{grid-template-columns:1fr}}
.about-grid .portrait{
  aspect-ratio:4/5;background:var(--navy);
  display:flex;align-items:flex-end;padding:26px;
  color:var(--bone);font-family:var(--serif);font-size:1.1rem;
  background:linear-gradient(160deg,var(--navy),var(--navy-soft));
  border-left:4px solid var(--turquoise);
}
.about-grid .body p{margin-bottom:18px}
.about-grid .body p:last-child{margin-bottom:0}
.pillars{margin-top:32px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pillar{border-top:1px solid var(--line);padding-top:14px}
.pillar h4{font-family:var(--sans);font-weight:700;font-size:0.98rem;margin-bottom:6px;color:var(--navy)}
.pillar p{font-size:0.92rem}

/* ---------- programs ---------- */
.programs{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
@media(max-width:860px){.programs{grid-template-columns:1fr}}
.program-card{background:var(--bone);padding:44px 40px}
.program-card .num{font-family:var(--serif);color:var(--turquoise-deep);font-size:0.95rem;margin-bottom:18px;display:block}
.program-card h3{margin-bottom:14px}
.program-card p{margin-bottom:24px}
.program-card a{font-weight:600;font-size:0.94rem;border-bottom:1px solid var(--navy);padding-bottom:2px}

/* ---------- blog list ---------- */
.post-row{
  display:grid;grid-template-columns:140px 1fr auto;gap:28px;align-items:baseline;
  padding:28px 0;border-top:1px solid var(--line);
}
.post-row:last-child{border-bottom:1px solid var(--line)}
.post-row .date{font-size:0.85rem;color:var(--ink-soft);font-weight:600}
.post-row h3{font-size:1.25rem;margin-bottom:6px}
.post-row .cat{font-size:0.8rem;color:var(--turquoise-deep);font-weight:600;margin-bottom:6px;display:block}
.post-row p{font-size:0.93rem;max-width:60ch}
.post-row .arrow{font-family:var(--serif);font-size:1.3rem;color:var(--navy)}
@media(max-width:700px){.post-row{grid-template-columns:1fr;gap:8px}.post-row .arrow{display:none}}

/* ---------- pre cumbre band ---------- */
.event-band{
  background:var(--navy);color:var(--bone);position:relative;overflow:hidden;
}
.event-band::after{
  content:'';position:absolute;left:-100px;bottom:-140px;width:360px;height:360px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,162,75,0.16),transparent 70%);
}
.event-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media(max-width:860px){.event-grid{grid-template-columns:1fr}}
.event-meta{display:flex;gap:28px;margin:28px 0;flex-wrap:wrap}
.event-meta div{border-left:2px solid var(--gold);padding-left:14px}
.event-meta .label{font-size:0.78rem;color:rgba(247,245,240,0.6);text-transform:uppercase;letter-spacing:0.04em}
.event-meta .value{font-family:var(--serif);font-size:1.15rem}
.event-panel{
  border:1px solid var(--line-on-navy);padding:36px;
}
.event-panel h4{font-family:var(--sans);font-weight:700;font-size:0.95rem;color:var(--gold);margin-bottom:16px}
.event-panel ol{list-style:none;display:flex;flex-direction:column;gap:14px}
.event-panel li{display:flex;gap:14px;font-size:0.94rem;color:rgba(247,245,240,0.85)}
.event-panel li .n{font-family:var(--serif);color:var(--turquoise);min-width:20px}

/* ---------- footer ---------- */
footer{background:var(--navy);color:rgba(247,245,240,0.7);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--line-on-navy)}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h5{font-family:var(--sans);color:var(--bone);font-size:0.85rem;font-weight:700;margin-bottom:16px;letter-spacing:0.02em}
.footer-grid ul{display:flex;flex-direction:column;gap:10px}
.footer-grid a:hover{color:var(--turquoise)}
.footer-logo{font-family:var(--serif);color:var(--bone);font-size:1.3rem;margin-bottom:14px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:0.85rem;flex-wrap:wrap;gap:12px}

/* ---------- generic inner page hero ---------- */
.page-hero{background:var(--navy);color:var(--bone);padding:80px 0 64px}
.page-hero .eyebrow{color:var(--turquoise);font-weight:600;font-size:0.9rem;margin-bottom:16px}
.page-hero h1{max-width:760px}

/* ---------- form ---------- */
.form-panel{background:var(--bone-dim);border:1px solid var(--line);padding:40px}
.field{margin-bottom:20px}
.field label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:8px;color:var(--navy)}
.field input,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--line);background:var(--bone);
  font-family:var(--sans);font-size:0.95rem;color:var(--ink);
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field textarea:focus{outline:2px solid var(--turquoise);outline-offset:1px}

/* ---------- timeline (Pre Cumbre / trayectoria) ---------- */
.timeline{border-left:2px solid var(--line);padding-left:32px;display:flex;flex-direction:column;gap:40px}
.tl-item{position:relative}
.tl-item::before{
  content:'';position:absolute;left:-38px;top:4px;width:10px;height:10px;
  border-radius:50%;background:var(--turquoise);
}
.tl-item .yr{font-family:var(--serif);color:var(--turquoise-deep);font-size:0.95rem;margin-bottom:6px;display:block}

.reveal-visible{opacity:1}

@media(max-width:600px){
  section{padding:64px 0}
  .program-card{padding:34px 24px}
}