/* =========================================================
   Esencia Urbana — sistema visual
   ========================================================= */

:root{
  /* superficie */
  --cream-50 : #FBF8F3;
  --cream-100: #F4EFE6;
  --cream-200: #EDE6DA;
  --sand-100 : var(--cream-100);
  --sand-200 : #E6DCCB;
  --sand-300 : #D6C9B2;
  --sand-400 : #C6B79C;
  --sand-600 : #93816B;
  --sand-700 : #7C6B57;
  --sand-800 : var(--brown-600);
  --sand-900 : var(--ink);
  --taupe-500: #A8977E;
  --brown-600: #6B5D4B;
  --ink      : #16181D;

  /* monograma EU */
  --mark-fill: #9A886D;

  /* forma */
  --r-card : 20px;
  --r-tile : 24px;
  --r-pill : 999px;

  /* sombra: cálida, nunca gris */
  --sh-soft : 0 2px 6px rgba(107,93,75,.06), 0 12px 28px rgba(107,93,75,.08);
  --sh-lift : 0 4px 10px rgba(107,93,75,.07), 0 26px 60px rgba(107,93,75,.14);

  --pad: clamp(20px, 5vw, 72px);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  font-family:"Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color:var(--brown-600);
  background:
    radial-gradient(1100px 700px at 78% 6%,  #F7F2E9 0%, rgba(247,242,233,0) 62%),
    radial-gradient(900px 600px at 6% 92%,   #F8F4EC 0%, rgba(248,244,236,0) 60%),
    var(--cream-100);
  -webkit-font-smoothing:antialiased;
}

img,svg{ display:block; max-width:100%; }

/* ---------------------------------------------------------
   NAV
   --------------------------------------------------------- */
.nav{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; gap:24px;
  padding:14px var(--pad);
  background:rgba(244,239,230,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(198,183,156,.28);
}
.nav__brand{
  display:flex; align-items:center; gap:10px;
  font-family:"Playfair Display", Georgia, serif;
  font-size:20px; color:var(--ink); text-decoration:none; letter-spacing:.2px;
}
.nav__mark{ width:27px; --mark-fill:var(--brown-600); }
.nav__links{ margin-left:auto; display:flex; gap:26px; }
.nav__links a{
  color:var(--brown-600); text-decoration:none;
  font-size:14px; font-weight:500; letter-spacing:.1px;
  padding-bottom:2px; border-bottom:1px solid transparent;
  transition:border-color .2s ease, color .2s ease;
}
.nav__links a:hover{ color:var(--ink); border-color:var(--sand-300); }
.nav__cta{ padding:8px 16px; font-size:13px; }

@media (max-width:720px){
  .nav__links{ display:none; }
  .nav__cta{ margin-left:auto; }
}

/* ---------------------------------------------------------
   HERO
   --------------------------------------------------------- */
.hero{
  position:relative;
  display:flex; align-items:center;
  overflow:hidden;
  padding:clamp(48px,7vw,96px) var(--pad) clamp(56px,8vw,104px);
  min-height:min(92vh, 880px);
}

.lockup{ display:flex; align-items:center; gap:clamp(14px,2vw,26px); }

.hero__intro{ position:relative; z-index:2; min-width:0; max-width:min(52%, 720px); }

.lockup__mark{
  width:clamp(68px,6.9vw,100px);
  flex:0 0 auto;
}

.lockup__word{
  margin:0;
  font-family:"Playfair Display", Georgia, serif;
  font-weight:400;
  font-size:clamp(38px, 5.2vw, 80px);
  line-height:.95;
  white-space:nowrap;
  letter-spacing:-.015em;
  color:var(--ink);
}

.tagline{
  margin:clamp(14px,2vw,22px) 0 0;
  font-size:clamp(15px, 1.45vw, 21px);
  font-weight:600;
  letter-spacing:-.005em;
  color:#5C503F;
  max-width:30ch;
}
@media (min-width:1120px){ .tagline{ max-width:none; white-space:nowrap; } }

.hero__lede{
  margin:14px 0 0;
  max-width:48ch;
  font-size:clamp(15px,1.1vw,17px);
  line-height:1.65;
}

.hero__actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:clamp(24px,3.2vw,38px); }

/* ---------------------------------------------------------
   BOTONES
   --------------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 22px; border-radius:var(--r-pill);
  font-size:14px; font-weight:600; letter-spacing:.1px;
  text-decoration:none; cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn--solid{
  background:var(--ink); color:var(--cream-50);
  border:1px solid var(--ink); box-shadow:var(--sh-soft);
}
.btn--solid:hover{ transform:translateY(-2px); box-shadow:var(--sh-lift); }
.btn--ghost{
  background:rgba(251,248,243,.7); color:var(--brown-600);
  border:1px solid var(--sand-300);
}
.btn--ghost:hover{ transform:translateY(-2px); border-color:var(--taupe-500); color:var(--ink); }

/* ---------------------------------------------------------
   ESCENARIO
   --------------------------------------------------------- */
.stage{
  position:absolute; top:0; right:0; bottom:0;
  width:min(62%, 980px);
  z-index:1;
  isolation:isolate;
}
.stage__bg{
  position:absolute; inset:0;
  width:100%; height:100%;
  z-index:0;
}
.cards{ position:absolute; inset:0; z-index:1; }

.card{
  position:absolute;
  background:rgba(252,250,246,.9);
  border:1px solid rgba(255,255,255,.85);
  border-radius:var(--r-card);
  box-shadow:var(--sh-lift);
  backdrop-filter:blur(8px);
  padding:clamp(10px,1.6vw,18px);
  will-change:transform;
  transition:transform .45s cubic-bezier(.22,.61,.36,1);
}

.card--window{ top:9%;  right:-7%; width:58%; }
.card--badge { top:29%; right:14%; width:60%; display:flex; align-items:center; gap:12px; }
.card--chart { top:43%; left:21%;  width:24%; }
.card--list  { top:52%; right:-9%; width:60%; }

.card__chrome{ display:flex; gap:6px; margin-bottom:clamp(10px,1.4vw,16px); }
.card__chrome i{
  width:8px; height:8px; border-radius:50%;
  background:var(--sand-300);
}
.card__chrome i:nth-child(2){ background:var(--sand-200); }
.card__chrome i:nth-child(3){ background:var(--cream-200); }

.bar{
  height:clamp(7px,.85vw,10px);
  border-radius:var(--r-pill);
  background:linear-gradient(90deg, var(--sand-300), var(--sand-200));
}
.bar + .bar{ margin-top:clamp(8px,1.1vw,12px); }
.bar--40{ width:40%; } .bar--55{ width:55%; } .bar--58{ width:58%; }
.bar--62{ width:62%; } .bar--70{ width:70%; } .bar--85{ width:85%; }
.bar--88{ width:88%; } .bar--90{ width:90%; }

.badge{
  flex:0 0 auto;
  width:clamp(34px,4.4vw,58px); aspect-ratio:1;
  border-radius:50%;
  background:linear-gradient(160deg,#D9C9AF,#C3B094);
  display:grid; place-items:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55);
}
.badge svg{ width:60%; --mark-fill:#FBF8F3; }
.card__lines{ flex:1; min-width:0; }

.card--chart svg{ width:100%; height:clamp(34px,4.5vw,58px); }

.row{ display:flex; align-items:center; gap:10px; }
.row + .row{ margin-top:clamp(10px,1.3vw,15px); }
.dot{
  flex:0 0 auto;
  width:clamp(14px,1.8vw,22px); aspect-ratio:1; border-radius:50%;
  background:var(--sand-200); border:1px solid rgba(255,255,255,.8);
}
.row .bar{ margin-top:0; }

/* apilado en pantallas pequeñas */
@media (max-width:960px){
  .hero{
    display:grid; grid-template-columns:1fr;
    gap:0;
    min-height:auto;
    padding-bottom:clamp(40px,9vw,64px);
  }

  /* La composicion sube: entra justo despues de la promesa, no al final.
     display:contents disuelve el contenedor para poder intercalarla. */
  .hero__intro{ display:contents; }
  .hero .eyebrow   { order:1; }
  .lockup          { order:2; }
  .tagline         { order:3; }
  .stage           { order:4; }
  .hero__actions   { order:5; }
  .hero__lede      { order:6; }

  .tagline{ max-width:32ch; }
  .hero__lede{ max-width:none; margin-top:clamp(20px,5vw,28px); }
  .stage{
    position:relative; inset:auto; width:auto;
    margin:clamp(22px,5vw,32px) calc(var(--pad) * -1) 0;
    aspect-ratio:760/780;
  }
  .card--window{ top:8%; right:2%; width:52%; }
  .card--badge { top:30%; right:20%; width:50%; }
  .card--chart { top:46%; left:8%;  width:28%; }
  .card--list  { top:54%; right:1%; width:56%; }
}

/* ---------------------------------------------------------
   SECCIONES
   --------------------------------------------------------- */
.section{ padding:clamp(56px,8vw,110px) var(--pad); }

.eyebrow{
  margin:0 0 10px;
  font-size:12px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--taupe-500);
}
.section__title{
  margin:0;
  font-family:"Playfair Display", Georgia, serif;
  font-weight:400;
  font-size:clamp(28px,4vw,52px);
  line-height:1.08; letter-spacing:-.01em;
  text-wrap:balance;
  color:var(--ink);
}
.section__title em{ font-style:italic; color:var(--taupe-500); }
.section__lede{
  margin:16px 0 0;
  max-width:56ch; font-size:clamp(15px,1.25vw,18px); line-height:1.6;
}

.grid{
  margin-top:clamp(32px,4vw,52px);
  display:grid; gap:clamp(16px,2vw,24px);
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}
.tile{
  padding:clamp(22px,2.6vw,32px);
  border-radius:var(--r-tile);
  background:linear-gradient(160deg, rgba(252,250,246,.95), rgba(240,233,222,.9));
  border:1px solid rgba(214,201,178,.55);
  box-shadow:var(--sh-soft);
  transition:transform .25s ease, box-shadow .25s ease;
}
.tile:hover{ transform:translateY(-4px); box-shadow:var(--sh-lift); }
.tile h3{
  margin:0 0 8px;
  font-family:"Playfair Display", Georgia, serif;
  font-weight:500; font-size:22px; color:var(--ink);
}
.tile p{ margin:0; font-size:15px; line-height:1.6; }

/* panel con estrías */
.section--panel{
  position:relative; overflow:hidden;
  background:linear-gradient(180deg, var(--cream-200), #E9E1D3);
  border-top:1px solid rgba(214,201,178,.5);
  border-bottom:1px solid rgba(214,201,178,.5);
}
.section--panel::before{
  content:""; position:absolute; inset:0;
  background:repeating-linear-gradient(90deg,
      rgba(198,183,156,.30) 0 5px, transparent 5px 15px);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.5), transparent 70%);
          mask-image:linear-gradient(180deg, rgba(0,0,0,.5), transparent 70%);
  pointer-events:none;
}
.split{
  position:relative; z-index:1;
  display:grid; gap:clamp(28px,4vw,56px);
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  align-items:center;
}
.split .btn{ margin-top:26px; }

/* footer */
.footer{
  display:flex; align-items:center; justify-content:center; gap:12px;
  padding:32px var(--pad) 44px;
  border-top:1px solid rgba(214,201,178,.5);
  font-size:13px; color:var(--taupe-500);
  text-align:center;
}
.footer__mark{ width:26px; flex:0 0 auto; --mark-fill:var(--brown-600); }

/* ---------------------------------------------------------
   NOTA PERSONAL
   --------------------------------------------------------- */
.note{
  padding:clamp(30px,4vw,48px) var(--pad);
  background:rgba(251,248,243,.6);
  border-top:1px solid rgba(214,201,178,.5);
  border-bottom:1px solid rgba(214,201,178,.5);
}
.note__inner{ max-width:62ch; }
.note__text{
  margin:0;
  font-family:"Playfair Display", Georgia, serif;
  font-size:clamp(18px,1.9vw,26px);
  line-height:1.38;
  color:var(--ink);
}
.note__by{ margin:12px 0 0; font-size:13px; color:var(--taupe-500); }

/* ---------------------------------------------------------
   EL BUCLE
   --------------------------------------------------------- */
.loop{ list-style:none; padding:0; }
.tile__num{
  display:block;
  font-family:"Playfair Display", Georgia, serif;
  font-size:32px; line-height:1;
  color:var(--sand-400);
  margin-bottom:16px;
}

/* ---------------------------------------------------------
   FILOSOFIA
   --------------------------------------------------------- */
.quote{
  text-align:center;
  padding:clamp(64px,9vw,124px) var(--pad);
}
.quote__mark{ width:60px; margin:0 auto 26px; }
.quote blockquote{ margin:0; }
.quote blockquote p{
  margin:0 auto;
  max-width:22ch;
  font-family:"Playfair Display", Georgia, serif;
  font-size:clamp(26px,3.6vw,46px);
  line-height:1.18; letter-spacing:-.01em;
  color:var(--ink);
}
.quote blockquote em{ font-style:italic; color:var(--taupe-500); }
.quote__by{
  margin:24px 0 0;
  font-size:12px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--taupe-500);
}

/* ---------------------------------------------------------
   DENTRO DE LA APP
   --------------------------------------------------------- */
.features{ list-style:none; margin:26px 0 0; padding:0; display:grid; gap:12px; }
.features li{ position:relative; padding-left:26px; font-size:15px; line-height:1.55; }
.features li::before{
  content:""; position:absolute; left:0; top:.5em;
  width:9px; height:9px; border-radius:50%;
  background:var(--cream-50); border:1.5px solid var(--taupe-500);
}

.applet{
  padding:clamp(20px,2.4vw,28px);
  border-radius:var(--r-tile);
  background:linear-gradient(165deg, rgba(252,250,246,.96), rgba(243,236,225,.92));
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--sh-lift);
}
.applet__head{
  display:flex; align-items:center; gap:14px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(198,183,156,.35);
}
.applet__avatar{
  flex:0 0 auto; width:44px; aspect-ratio:1; border-radius:50%;
  background:linear-gradient(160deg,#D9C9AF,#C3B094);
  display:grid; place-items:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55);
}
.applet__avatar svg{ width:60%; --mark-fill:#FBF8F3; }
.applet__who{ display:grid; gap:2px; }
.applet__hi{ font-size:13px; color:var(--taupe-500); }
.applet__space{
  font-family:"Playfair Display", Georgia, serif;
  font-size:20px; color:var(--ink);
}
.applet__rows{ list-style:none; margin:0; padding:0; }
.applet__rows li{ padding:16px 0; border-bottom:1px solid rgba(198,183,156,.28); }
.applet__rows li:last-child{ border-bottom:0; padding-bottom:0; }
.applet__k{
  margin:0 0 5px;
  font-size:11px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--taupe-500);
}
.applet__v{ margin:0; font-size:15px; line-height:1.5; color:var(--ink); }

/* ---------------------------------------------------------
   VOCES
   --------------------------------------------------------- */
.voices{
  margin-top:clamp(32px,4vw,52px);
  display:grid; gap:clamp(16px,2vw,24px);
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}
.voice{
  margin:0;
  display:flex; flex-direction:column; gap:18px;
  padding:clamp(22px,2.6vw,32px);
  border-radius:var(--r-tile);
  background:linear-gradient(160deg, rgba(252,250,246,.95), rgba(240,233,222,.9));
  border:1px solid rgba(214,201,178,.55);
  box-shadow:var(--sh-soft);
}
.voice blockquote{
  margin:0;
  font-family:"Playfair Display", Georgia, serif;
  font-size:clamp(17px,1.5vw,20px);
  line-height:1.42; color:var(--ink);
  quotes:"\00ab" "\00bb";
}
.voice blockquote::before{ content:open-quote; }
.voice blockquote::after{ content:close-quote; }
.voice figcaption{ margin-top:auto; font-size:12.5px; color:var(--taupe-500); }

/* ---------------------------------------------------------
   CTA
   --------------------------------------------------------- */
.cta{ text-align:center; }
.cta__mark{
  width:74px; margin:0 auto 22px;
}
.cta .section__title{ max-width:26ch; margin-inline:auto; }
.cta .section__lede{ margin-inline:auto; }
.cta__actions{
  margin-top:32px;
  display:flex; flex-direction:column; align-items:center; gap:16px;
}
.cta__site{
  font-size:13px; color:var(--taupe-500); text-decoration:none;
  padding-bottom:2px; border-bottom:1px solid var(--sand-300);
  transition:color .2s ease, border-color .2s ease;
}
.cta__site:hover{ color:var(--ink); border-color:var(--taupe-500); }

/* ---------------------------------------------------------
   REVEAL
   --------------------------------------------------------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-in{ opacity:1; transform:none; }

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}

html {
  scroll-behavior: smooth;
}

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: clamp(20px, 4vw, 40px);
  right: clamp(20px, 4vw, 40px);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--ink);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  z-index: 100;
}

.back-to-top:hover {
  transform: translateY(-3px);
  background-color: #333;
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}