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

:root{
  --ink:#1B2B2C;
  --paper:#F1ECDD;
  --paper-raised:#FAF7EE;
  --teal:#2F6E68;
  --teal-deep:#1E4A46;
  --marigold:#E8A23D;
  --clay:#B14A2B;
  --line:#D8CFB8;
  --font-display:'Fraunces', serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
}

/* ---------- BASE ---------- */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.01ms !important; transition-duration:0.01ms !important;}
}
a{color:var(--teal-deep);}
a:focus-visible, button:focus-visible{outline:3px solid var(--marigold); outline-offset:2px;}
.wrap{max-width:640px; margin:0 auto; padding:0 20px;}

/* ---------- HEADER ---------- */
header{
  background:
    radial-gradient(circle at 15% 20%, rgba(232,162,61,0.16), transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(47,110,104,0.14), transparent 45%),
    var(--paper);
  padding:48px 0 34px;
  border-bottom:2px solid var(--ink);
}
.eyebrow{
  font-family:var(--font-mono); font-size:12px; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:var(--teal-deep); background:rgba(47,110,104,.1);
  display:inline-block; padding:5px 10px; border-radius:3px; margin-bottom:16px;
}
h1{
  font-family:var(--font-display); font-weight:700; font-size:clamp(32px,7.5vw,50px);
  line-height:1.08; margin:0 0 13px; letter-spacing:-0.01em;
}
h1 em{font-style:italic; color:var(--clay);}
.lede{font-size:16px; max-width:46ch; color:#3c4a4a; margin:0;}
.lede strong{color:var(--clay);}

/* ---------- THREAD / BUBBLE (hilo BUSCO-OFRECE) ---------- */
.thread-section{padding:36px 0 8px;}
.thread-label{
  font-family:var(--font-mono); font-size:12px; font-weight:700; text-transform:uppercase;
  letter-spacing:.1em; color:#6b6455; margin-bottom:14px;
}
.thread{
  background:var(--paper-raised); border:1.5px solid var(--ink); border-radius:14px;
  padding:18px 16px 20px; box-shadow:5px 5px 0 rgba(27,43,44,.9);
}
.bubble{
  max-width:88%; padding:10px 13px; border-radius:12px; margin-bottom:10px;
  font-size:14.5px; position:relative; animation:rise .5s ease backwards;
}
.bubble .who{font-weight:700; font-size:12.5px; display:block; margin-bottom:2px;}
.bubble .tag{
  font-family:var(--font-mono); font-size:10.5px; font-weight:700; letter-spacing:.05em;
  padding:1px 6px; border-radius:4px; display:inline-block; margin-bottom:4px;
}
.bubble.busco{background:#fff; border:1.3px solid var(--ink); border-bottom-left-radius:3px;}
.bubble.busco .tag{background:var(--clay); color:#fff;}
.bubble.ofrece{
  background:#E4F0EC; border:1.3px solid var(--teal-deep); margin-left:8%;
  border-bottom-left-radius:3px; animation-delay:.15s;
}
.bubble.ofrece .tag{background:var(--teal-deep); color:#fff;}
.bubble.ofrece + .bubble.ofrece{animation-delay:.3s;}
.bubble.cerrado{
  background:var(--marigold); border:1.3px solid var(--ink); color:var(--ink);
  margin-left:0; animation-delay:.45s;
}
.bubble.cerrado .tag{background:var(--ink); color:var(--marigold);}
@keyframes rise{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }

/* ---------- STEPS (grid de 3) ---------- */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin:22px 0 8px;}
.step{background:var(--paper-raised); border:1.3px solid var(--line); border-radius:10px; padding:12px 10px; text-align:center;}
.step .n{font-family:var(--font-mono); font-weight:700; font-size:11px; color:var(--teal-deep); display:block; margin-bottom:4px;}
.step .t{font-size:12.5px; font-weight:600;}

/* ---------- GROUP / RULE (bloques de reglas numeradas) ---------- */
main{padding:40px 0 20px;}
.group{margin-bottom:34px;}
.group-head{
  display:flex; align-items:baseline; gap:10px; margin-bottom:14px;
  border-bottom:2px solid var(--ink); padding-bottom:8px;
}
.group-head h2{font-family:var(--font-display); font-size:21px; font-weight:600; margin:0;}
.group-head .count{font-family:var(--font-mono); font-size:12px; color:#6b6455;}

.rule{display:flex; gap:14px; padding:16px 0; border-bottom:1px solid var(--line);}
.rule:last-child{border-bottom:none;}
.rule .num{
  font-family:var(--font-mono); font-weight:700; font-size:15px; color:#fff;
  background:var(--ink); width:28px; height:28px; min-width:28px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
}
.rule.important .num{background:var(--clay);}
.rule.tealnum .num{background:var(--teal-deep);}
.rule p{margin:0 0 6px; font-size:15px;}
.rule p:last-child{margin-bottom:0;}
.rule .example{
  font-family:var(--font-mono); font-size:12.5px; background:var(--paper-raised);
  border-left:3px solid var(--teal); padding:7px 10px; border-radius:0 6px 6px 0;
  color:#3c4a4a; margin-top:6px;
}

/* ---------- LINK BOX ---------- */
.link-box{
  background:var(--paper-raised); border:1.5px dashed var(--teal-deep); border-radius:10px;
  padding:14px 16px; margin-top:10px; font-size:14px;
}
.link-box a{font-weight:700; word-break:break-all;}

/* ---------- BOTONES ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  background:var(--teal-deep); color:#fff; font-weight:700; font-family:var(--font-body);
  padding:10px 18px; border-radius:9px; text-decoration:none; font-size:14px;
  border:none; cursor:pointer; margin-top:10px;
}
.btn:hover{opacity:.92;}
.btn.clay{background:var(--clay);}
.btn.outline{background:transparent; color:var(--teal-deep); border:1.5px solid var(--teal-deep);}
.btn.secondary{background:#EDE7D6; color:var(--ink);}
.btn.secondary:hover{background:#e2dac2; opacity:1;}

/* ---------- CALLOUT (cita de cierre) ---------- */
.callout{background:var(--teal-deep); color:var(--paper); border-radius:14px; padding:24px 22px; margin:36px 0;}
.callout p{font-family:var(--font-display); font-style:italic; font-size:19px; line-height:1.4; margin:0;}

/* ---------- FOOTER ---------- */
footer{padding:26px 0 50px; text-align:center; color:#6b6455; font-size:13px;}
footer .name{font-family:var(--font-mono); font-weight:700; color:var(--ink);}

/* ---------- MODAL (compartir / recomendar) ---------- */
.modal-overlay{
  position:fixed; inset:0; background:rgba(27,43,44,.55); display:none;
  justify-content:center; align-items:center; z-index:1000; padding:16px;
}
.modal-overlay.active{display:flex;}
.modal-content{
  background:var(--paper-raised); padding:24px; border-radius:16px; width:100%; max-width:480px;
  border:1.5px solid var(--ink); box-shadow:6px 6px 0 rgba(27,43,44,.9); animation:fadeIn .25s ease;
}
@keyframes fadeIn{ from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:translateY(0);} }
.modal-header{font-family:var(--font-display); font-size:19px; font-weight:700; margin-bottom:6px; color:var(--ink);}
.modal-subheader{font-size:13.5px; color:#5b6a69; margin-bottom:14px;}
.modal-textarea{
  width:100%; height:120px; padding:12px; border:1.3px solid var(--line); border-radius:8px;
  font-family:var(--font-body); font-size:14px; color:var(--ink); background:#fff;
  resize:none; margin-bottom:14px; outline:none;
}
.modal-textarea:focus{border-color:var(--teal-deep); box-shadow:0 0 0 3px rgba(47,110,104,.15);}
.modal-actions{display:flex; gap:10px; justify-content:flex-end;}

@media (max-width:420px){
  .steps{grid-template-columns:1fr;}
  .bubble{max-width:96%;}
  .bubble.ofrece{margin-left:4%;}
}