/* =====================================================================
   El arte de conectar — Clase gratuita · Sebastian Rubio
   Archetype: Editorial Light Cream (paleta adaptada: crema · azul · oro)
   ===================================================================== */

/* ---------- TOKENS ---------- */
:root{
  --bg:        #F6F0E4;   /* crema cálido */
  --bg-2:      #EFE7D5;   /* arena */
  --paper:     #FFFDF8;
  --ink:       #17233F;   /* azul-tinta profundo (texto principal) */
  --ink-soft:  #33405C;
  --ink-mute:  #737466;
  --navy:      #1B3A6B;   /* azul del libro */
  --navy-2:    #14294D;
  --navy-3:    #0E1E3A;
  --gold:      #C6A24C;   /* oro cálido (letras del libro / cadena) */
  --gold-2:    #A67C33;
  --gold-soft: #E4CE97;
  --leather:   #A96A3D;   /* marrón del sillón (acento terciario) */
  --line:      rgba(23,35,63,0.12);
  --line-2:    rgba(23,35,63,0.07);

  --ff-display:"Fraunces", Georgia, "Times New Roman", serif;
  --ff-body:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --ease-out: cubic-bezier(.22,.61,.36,1);
  --ease-io:  cubic-bezier(.65,.05,.36,1);

  --wrap: 1200px;
  --pad: clamp(1.25rem, 5vw, 4rem);
}

/* ---------- RESET ---------- */
*{ box-sizing:border-box; margin:0; padding:0; }
html{
  overflow-x:clip;
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--ff-body);
  font-weight:400;
  line-height:1.6;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  cursor:none;
}
@media (hover:none){ body{ cursor:auto; } }

img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
em{ font-style:italic; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }

/* ---------- TYPOGRAPHY HELPERS ---------- */
.kicker{
  font-size:.8rem; font-weight:500; letter-spacing:.18em; text-transform:uppercase;
  color:var(--gold-2); display:inline-flex; align-items:center; gap:.6rem;
}
.kicker-dot{
  width:7px; height:7px; border-radius:50%; background:var(--gold);
  box-shadow:0 0 0 4px rgba(198,162,76,.18);
}
.section-eyebrow{
  font-size:.76rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase;
  color:var(--gold-2); margin-bottom:1.4rem;
}
.section-title{
  font-family:var(--ff-display); font-weight:400;
  font-size:clamp(1.9rem, 4.6vw, 3.4rem); line-height:1.08;
  letter-spacing:-.01em; color:var(--navy-2); text-wrap:balance;
}
.section-title em{ color:var(--gold-2); font-style:italic; }

/* =====================================================================
   SPLASH
   ===================================================================== */
.splash{
  position:fixed; inset:0; z-index:9999;
  background:var(--bg);
  display:grid; place-items:center;
  transition:opacity .8s var(--ease-out), clip-path .9s var(--ease-io);
  animation:splashSafety .01s 4.5s forwards; /* red de seguridad si el JS falla */
}
.splash.is-out{
  opacity:0; pointer-events:none;
  clip-path:inset(0 0 100% 0);
}
@keyframes splashSafety{ to{ opacity:0; pointer-events:none; clip-path:inset(0 0 100% 0); } }
.splash-inner{ display:flex; flex-direction:column; align-items:center; gap:1rem; }
.splash-mark{
  font-family:var(--ff-display); font-size:2.6rem; font-weight:500; font-style:italic;
  color:var(--navy); letter-spacing:.02em;
}
.splash-line{
  width:0; height:1px; background:var(--gold);
  animation:splashLine 1.4s .2s var(--ease-out) forwards;
}
@keyframes splashLine{ to{ width:120px; } }
.splash-text{
  font-size:.72rem; letter-spacing:.28em; text-transform:uppercase; color:var(--ink-mute);
  opacity:0; animation:splashFade .8s .7s forwards;
}
@keyframes splashFade{ to{ opacity:1; } }

/* =====================================================================
   CUSTOM CURSOR
   ===================================================================== */
.cursor{ position:fixed; top:0; left:0; z-index:9000; pointer-events:none;
  opacity:0; transition:opacity .3s var(--ease-out); }
.cursor.is-ready{ opacity:1; }
.cursor-ring{
  position:fixed; top:0; left:0; width:38px; height:38px; margin:-19px 0 0 -19px;
  border:1px solid rgba(27,58,107,.5); border-radius:50%;
  transition:width .25s var(--ease-out), height .25s var(--ease-out), border-color .25s, background .25s;
  will-change:transform;
}
.cursor-dot{
  position:fixed; top:0; left:0; width:6px; height:6px; margin:-3px 0 0 -3px;
  background:var(--gold); border-radius:50%; will-change:transform;
}
.cursor.is-hover .cursor-ring{
  width:64px; height:64px; margin:-32px 0 0 -32px;
  border-color:rgba(198,162,76,.7); background:rgba(198,162,76,.08);
}
@media (hover:none){ .cursor{ display:none; } }

/* =====================================================================
   NAV
   ===================================================================== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:background .4s var(--ease-out), box-shadow .4s, backdrop-filter .4s;
}
.nav-inner{
  max-width:var(--wrap); margin-inline:auto; padding:1.15rem var(--pad);
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
}
.nav.is-solid{
  background:rgba(246,240,228,.82);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  box-shadow:0 1px 0 var(--line);
}
.nav-brand{ display:flex; align-items:center; gap:.65rem; }
.nav-brand-mark{
  font-family:var(--ff-display); font-style:italic; font-weight:500; font-size:1.15rem;
  color:var(--navy); width:34px; height:34px; display:grid; place-items:center;
  border:1px solid var(--line); border-radius:50%;
}
.nav-brand-name{ font-weight:600; font-size:.95rem; letter-spacing:.01em; color:var(--ink); }
.nav-right{ display:flex; align-items:center; gap:1.1rem; }
.nav-date{ font-size:.72rem; font-weight:500; letter-spacing:.14em; color:var(--ink-mute); }
@media (max-width:640px){ .nav-date{ display:none; } .nav-brand-name{ display:none; } }

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  font-family:var(--ff-body); font-weight:500; font-size:.95rem; letter-spacing:.01em;
  padding:.95rem 1.7rem; border-radius:100px; border:1px solid transparent;
  cursor:none; transition:transform .3s var(--ease-out), box-shadow .3s, background .3s, color .3s;
  will-change:transform; white-space:nowrap;
}
@media (hover:none){ .btn{ cursor:pointer; } }
.btn-primary{
  background:var(--navy); color:#F6F0E4;
  box-shadow:0 10px 30px -12px rgba(20,41,77,.6);
}
.btn-primary:hover{
  background:var(--navy-2);
  box-shadow:0 18px 44px -14px rgba(20,41,77,.75);
}
.btn-primary::after{
  content:""; position:absolute;
}
.btn-ghost{
  background:transparent; color:var(--navy); border-color:var(--line);
}
.btn-ghost:hover{ border-color:var(--navy); background:rgba(27,58,107,.04); }
.btn-sm{ padding:.62rem 1.15rem; font-size:.85rem; }
.btn-lg{ padding:1.15rem 2.4rem; font-size:1.05rem; }
.btn-primary.btn-lg{ box-shadow:0 16px 44px -14px rgba(20,41,77,.7); }

/* Acento oro en el botón primario grande */
.cta .btn-primary{
  background:linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 100%);
  position:relative; overflow:hidden;
}
.cta .btn-primary::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(120deg, transparent 30%, rgba(228,206,151,.35) 50%, transparent 70%);
  transform:translateX(-120%); transition:transform .8s var(--ease-out);
}
.cta .btn-primary:hover::before{ transform:translateX(120%); }

/* =====================================================================
   HERO
   ===================================================================== */
.hero{
  position:relative; min-height:100vh; min-height:100svh;
  display:flex; align-items:stretch; padding-top:5.5rem; padding-bottom:0;
  overflow:hidden;
}
.hero-mesh{
  position:absolute; inset:-20%; z-index:0; pointer-events:none;
  background:
    radial-gradient(38% 40% at 22% 30%, rgba(198,162,76,.20), transparent 70%),
    radial-gradient(45% 45% at 82% 72%, rgba(27,58,107,.16), transparent 72%),
    radial-gradient(40% 40% at 65% 12%, rgba(169,106,61,.10), transparent 70%);
  filter:blur(20px);
  animation:meshDrift 26s ease-in-out infinite;
}
@keyframes meshDrift{
  0%,100%{ transform:scale(1) translate(0,0); }
  50%{ transform:scale(1.12) translate(2%, -1%); }
}
.hero-grain{
  position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.5;
  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='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}
.hero-grid{
  position:relative; z-index:2;
  width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad);
  display:grid; grid-template-columns:1.02fr .98fr; gap:clamp(1.5rem,4vw,3.5rem);
  align-items:stretch;
}
.hero-copy{ max-width:38rem; align-self:center; padding-block:1.5rem 3rem; }
.hero-title{
  font-family:var(--ff-display); font-weight:400;
  font-size:clamp(2.5rem, 6vw, 4.9rem); line-height:1.02; letter-spacing:-.02em;
  color:var(--navy-2); margin:1.1rem 0 .4rem; text-wrap:balance;
}
.hero-title em{ color:var(--gold-2); font-style:italic; }
.hero-tag{
  font-family:var(--ff-display); font-style:italic; font-weight:400;
  font-size:clamp(1.15rem,2.3vw,1.6rem); color:var(--leather); margin-bottom:1.4rem;
}
.hero-sub{
  font-size:clamp(1rem,1.35vw,1.12rem); color:var(--ink-soft); max-width:34rem;
  margin-bottom:2rem;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:.9rem; margin-bottom:2.2rem; }
.hero-chips{
  list-style:none; display:flex; flex-wrap:wrap; gap:.55rem;
}
.hero-chips li{
  display:inline-flex; align-items:center; gap:.5rem;
  font-size:.82rem; font-weight:500; color:var(--ink-soft);
  padding:.5rem .9rem; border:1px solid var(--line); border-radius:100px;
  background:rgba(255,253,248,.5);
}
.hero-chips .ico{ width:15px; height:15px; }
.chip-free{ color:var(--gold-2)!important; border-color:var(--gold-soft)!important; background:rgba(198,162,76,.08)!important; }
.ico{ fill:none; stroke:currentColor; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; }

/* Hero figure */
.hero-figure{
  position:relative; align-self:end; height:100%;
  display:flex; justify-content:center; align-items:flex-end;
  min-height:auto;
}
.hero-halo{
  position:absolute; inset:auto 0 0 0; height:82%; z-index:0;
  background:radial-gradient(52% 60% at 50% 62%, rgba(27,58,107,.30), rgba(27,58,107,.10) 46%, transparent 72%);
  filter:blur(34px);
}
.hero-halo::after{
  content:""; position:absolute; left:50%; bottom:0; transform:translateX(-50%);
  width:82%; height:54px; border-radius:50%;
  background:radial-gradient(50% 100% at 50% 50%, rgba(14,30,58,.42), transparent 75%);
  filter:blur(16px);
}
.hero-photo-wrap{
  position:relative; z-index:2; will-change:transform;
  display:flex; align-items:flex-end; justify-content:center;
}
.hero-photo{
  width:min(118%, 680px);
  filter:drop-shadow(0 30px 50px rgba(14,30,58,.30));
  display:block;
}
.hero-badge{
  position:absolute; z-index:3; left:-2%; bottom:16%;
  background:var(--paper); border:1px solid var(--line);
  border-radius:16px; padding:.85rem 1.1rem; text-align:center;
  box-shadow:0 22px 50px -20px rgba(20,41,77,.4);
  display:flex; flex-direction:column; gap:.1rem;
  animation:badgeFloat 6s ease-in-out infinite;
}
@keyframes badgeFloat{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-10px); } }
.hero-badge-k{ font-size:.62rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-mute); }
.hero-badge-v{ font-family:var(--ff-display); font-style:italic; font-size:1.9rem; color:var(--gold-2); line-height:1; }
.hero-badge-s{ font-size:.6rem; letter-spacing:.06em; color:var(--ink-mute); max-width:9rem; }
@media (max-width:560px){ .hero-badge{ left:auto; right:2%; bottom:8%; padding:.6rem .8rem; } }

.hero-scroll{
  position:absolute; z-index:3; left:50%; bottom:1.6rem; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:.5rem;
  font-size:.66rem; letter-spacing:.24em; text-transform:uppercase; color:var(--ink-mute);
}
.hero-scroll-line{ width:1px; height:38px; background:linear-gradient(var(--gold), transparent);
  animation:scrollPulse 2.2s ease-in-out infinite; transform-origin:top; }
@keyframes scrollPulse{ 0%,100%{ transform:scaleY(.4); opacity:.5; } 50%{ transform:scaleY(1); opacity:1; } }

/* =====================================================================
   MANIFIESTO / PROBLEMA
   ===================================================================== */
.manifesto{ padding:clamp(4.5rem,10vw,8.5rem) 0; }
.manifesto-lead{
  font-family:var(--ff-display); font-weight:400;
  font-size:clamp(1.7rem,4vw,3rem); line-height:1.12; letter-spacing:-.01em;
  color:var(--navy-2); max-width:24ch; margin-bottom:3.5rem;
}
.manifesto-lead em{ color:var(--gold-2); font-style:italic; }
.loss-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(1.5rem,4vw,4rem); align-items:start; }
.loss-intro{ font-size:1.1rem; color:var(--ink-soft); max-width:26rem; }
.loss-list{ list-style:none; display:flex; flex-direction:column; }
.loss-list li{
  font-family:var(--ff-display); font-size:clamp(1.15rem,2vw,1.5rem); color:var(--navy-2);
  padding:1rem 0; border-bottom:1px solid var(--line); display:flex; gap:1rem; align-items:baseline;
}
.loss-list li:first-child{ border-top:1px solid var(--line); }
.loss-num{ color:var(--gold); font-size:1.1rem; }
.loss-out{ grid-column:1 / -1; margin-top:1rem; font-size:1.15rem; color:var(--ink-soft); }
.loss-out strong{ color:var(--navy-2); font-weight:600; }
@media (max-width:720px){ .loss-grid{ grid-template-columns:1fr; } .loss-out{ margin-top:0; } }

/* =====================================================================
   NADIE TE ENSEÑA
   ===================================================================== */
.taught{
  background:var(--navy-2); color:var(--bg);
  padding:clamp(4rem,9vw,7rem) 0; position:relative; overflow:hidden;
}
.taught::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(60% 80% at 80% 20%, rgba(198,162,76,.16), transparent 65%);
  pointer-events:none;
}
.taught-inner{ position:relative; text-align:center; }
.taught-marks{ display:flex; flex-wrap:wrap; justify-content:center; gap:.8rem 2.2rem; margin-bottom:2rem; }
.taught-mark{
  font-family:var(--ff-display); font-style:italic; font-size:clamp(1.3rem,3vw,2.1rem);
  color:var(--gold-soft);
}
.taught-line{
  font-size:clamp(1.15rem,2.4vw,1.7rem); max-width:34ch; margin-inline:auto; color:#EFE7D5;
  line-height:1.4;
}
.taught-line em{ color:#fff; font-style:italic; }

/* =====================================================================
   QUÉ APRENDERÁS
   ===================================================================== */
.learn{ padding:clamp(4.5rem,10vw,8.5rem) 0; }
.learn-head{ max-width:44rem; margin-bottom:3.5rem; }
.learn-grid{
  display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(1rem,2vw,1.5rem);
}
.learn-card{
  background:var(--paper); border:1px solid var(--line); border-radius:20px;
  padding:clamp(1.6rem,3vw,2.4rem); position:relative;
  transition:transform .35s var(--ease-out), box-shadow .35s, border-color .35s;
  transform-style:preserve-3d; will-change:transform;
}
.learn-card:hover{
  box-shadow:0 30px 60px -30px rgba(20,41,77,.35); border-color:var(--gold-soft);
}
.learn-card-wide{ grid-column:1 / -1; }
.learn-n{
  font-family:var(--ff-display); font-style:italic; font-size:2.2rem; color:var(--gold);
  display:block; margin-bottom:1rem; line-height:1;
}
.learn-card h3{
  font-family:var(--ff-display); font-weight:500; font-size:clamp(1.2rem,2vw,1.5rem);
  color:var(--navy-2); margin-bottom:.6rem; letter-spacing:-.01em;
}
.learn-card p{ color:var(--ink-soft); font-size:.98rem; }
@media (max-width:640px){ .learn-grid{ grid-template-columns:1fr; } }

/* =====================================================================
   PARA QUIÉN + MARQUEE
   ===================================================================== */
.audience{ padding:clamp(4rem,8vw,6.5rem) 0 0; }
.audience-inner{ text-align:center; }
.audience-line{
  font-family:var(--ff-display); font-weight:400; font-style:normal;
  font-size:clamp(1.6rem,3.6vw,2.7rem); line-height:1.2; color:var(--navy-2);
  max-width:22ch; margin:0 auto; text-wrap:balance;
}
.marquee{ margin-top:clamp(3rem,6vw,5rem); overflow:hidden; border-top:1px solid var(--line);
  border-bottom:1px solid var(--line); padding:1.4rem 0; }
.marquee-track{
  display:flex; align-items:center; gap:1.6rem; white-space:nowrap; width:max-content;
  will-change:transform;
}
.marquee-track span{
  font-family:var(--ff-display); font-style:italic; font-size:clamp(1.3rem,2.6vw,2rem);
  color:var(--navy); opacity:.85;
}
.marquee-track .marq-dot{ color:var(--gold); font-style:normal; opacity:.7; }

/* =====================================================================
   DETALLES
   ===================================================================== */
.details{ padding:clamp(4.5rem,9vw,7.5rem) 0; }
.details-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1rem,2vw,1.5rem); }
.detail-card{
  background:var(--bg-2); border:1px solid var(--line); border-radius:20px;
  padding:clamp(1.8rem,3vw,2.6rem); display:flex; flex-direction:column; gap:.35rem;
  transition:transform .35s var(--ease-out), box-shadow .35s;
}
.detail-card:hover{ transform:translateY(-6px); box-shadow:0 26px 50px -28px rgba(20,41,77,.35); }
.detail-ico{ width:30px; height:30px; color:var(--gold-2); margin-bottom:1rem; }
.detail-k{ font-size:.72rem; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-mute); }
.detail-v{ font-family:var(--ff-display); font-size:clamp(1.7rem,3vw,2.3rem); color:var(--navy-2); line-height:1.05; }
.detail-s{ font-size:.9rem; color:var(--ink-soft); }
@media (max-width:720px){ .details-grid{ grid-template-columns:1fr; } }

/* =====================================================================
   CTA FINAL
   ===================================================================== */
.cta{ position:relative; padding:clamp(5rem,11vw,9rem) 0; text-align:center; overflow:hidden;
  background:var(--bg-2); }
.cta-mesh{
  position:absolute; inset:-20%; z-index:0; pointer-events:none;
  background:
    radial-gradient(40% 45% at 25% 30%, rgba(198,162,76,.22), transparent 68%),
    radial-gradient(45% 50% at 78% 75%, rgba(27,58,107,.18), transparent 70%);
  filter:blur(24px); animation:meshDrift 24s ease-in-out infinite;
}
.cta-inner{ position:relative; z-index:2; max-width:44rem; }
.cta-eyebrow{ color:var(--gold-2); }
.cta-title{
  font-family:var(--ff-display); font-weight:400;
  font-size:clamp(1.9rem,4.6vw,3.3rem); line-height:1.1; color:var(--navy-2);
  letter-spacing:-.01em; text-wrap:balance; margin-bottom:1.2rem;
}
.cta-q{ font-size:clamp(1.05rem,2vw,1.35rem); color:var(--ink-soft); margin-bottom:2.4rem; }
.cta-q em{ font-family:var(--ff-display); font-style:italic; color:var(--navy); }
.cta-fine{ margin-top:1.6rem; font-size:.82rem; letter-spacing:.04em; color:var(--ink-mute); }

/* =====================================================================
   FOOTER
   ===================================================================== */
.footer{ background:var(--navy-3); color:var(--bg); padding:clamp(3rem,6vw,4.5rem) 0; }
.footer-inner{ text-align:center; display:flex; flex-direction:column; align-items:center; gap:1rem; }
.footer-brand{ display:flex; align-items:center; gap:.6rem; font-weight:600; }
.footer-mark{
  font-family:var(--ff-display); font-style:italic; color:var(--gold-soft);
  width:34px; height:34px; display:grid; place-items:center;
  border:1px solid rgba(228,206,151,.35); border-radius:50%;
}
.footer-note{ max-width:36ch; color:rgba(239,231,213,.75); font-size:.95rem; }
.footer-copy{ font-size:.76rem; color:rgba(239,231,213,.4); letter-spacing:.03em; }

/* =====================================================================
   REVEAL (scroll) — con red de seguridad
   ===================================================================== */
.reveal{ opacity:0; transform:translateY(34px); transition:opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal.is-visible{ opacity:1; transform:none; }
/* Defensa obligatoria: un elemento con .reveal Y data-split nunca queda invisible */
.reveal[data-split]{ opacity:1; transform:none; }

/* Split-text (hero) */
.split-word{ display:inline-block; }
.split-word > span{
  display:inline-block; transform:translateY(110%); opacity:0;
}
.split-ready .split-word > span{
  transition:transform .9s var(--ease-out), opacity .9s var(--ease-out);
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:900px){
  .hero{ min-height:auto; padding-top:7rem; }
  .hero-grid{ grid-template-columns:1fr; gap:2rem; }
  .hero-copy{ max-width:100%; order:1; }
  .hero-figure{ order:2; min-height:auto; }
  .hero-photo{ width:min(78%, 420px); }
  .hero-scroll{ display:none; }
}
@media (max-width:480px){
  .hero-actions .btn{ width:100%; }
}

/* =====================================================================
   REDUCED MOTION — solo lo intrusivo
   ===================================================================== */
@media (prefers-reduced-motion: reduce){
  .hero-mesh, .cta-mesh{ animation:none; }
  .hero-badge{ animation:none; }
  .hero-scroll-line{ animation:none; }
  .marquee-track{ animation:none!important; }
}