/* =====================================================================
   components.css — botones, cards, chips, tabs, acordeón, modal, reveal
   ===================================================================== */

/* ---------- botones ---------- */
.btn{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  padding:13px 22px;border-radius:var(--radius);border:1px solid var(--line);color:var(--txt);
  background:var(--surface);cursor:pointer;transition:.2s;display:inline-flex;align-items:center;gap:8px}
.btn:hover{border-color:var(--muted);transform:translateY(-2px)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.1)}

/* ---------- proyectos ---------- */
.projects{display:grid;gap:18px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  display:grid;grid-template-columns:1.1fr 1fr;overflow:hidden;cursor:pointer;transition:.25s;position:relative
}
.card:hover{border-color:var(--muted);transform:translateY(-3px)}
.card-body{padding:34px}
.card .tag{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;display:block}
.card h3{font-size:1.45rem;letter-spacing:-.02em;margin-bottom:10px;font-weight:600}
.card p{color:var(--muted);font-size:.92rem;margin-bottom:18px}
.stackline{display:flex;flex-wrap:wrap;gap:6px}
.stackline span{font-family:var(--mono);font-size:10px;letter-spacing:.08em;padding:4px 8px;
  border:1px solid var(--line);border-radius:2px;color:var(--muted)}
.card-vis{position:relative;min-height:230px;background:var(--surface-2);overflow:hidden}
.card-vis img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:24px;display:block;z-index:1}
.open-hint{position:absolute;bottom:18px;right:20px;font-family:var(--mono);font-size:10px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--muted);opacity:0;transition:.25s;z-index:2;
  background:color-mix(in srgb,var(--surface) 88%,transparent);padding:5px 9px;border-radius:2px;backdrop-filter:blur(4px)}
.card:hover .open-hint{opacity:1}

/* ---------- stack ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.tab{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  padding:8px 14px;border:1px solid var(--line);background:transparent;color:var(--muted);
  border-radius:100px;cursor:pointer;transition:.2s}
.tab:hover{color:var(--txt)}
.tab[aria-selected="true"]{background:var(--txt);color:var(--bg);border-color:var(--txt)}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{font-family:var(--mono);font-size:12px;padding:9px 14px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--surface);transition:.25s;display:flex;align-items:center;gap:9px}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.75}
.chip:hover{border-color:var(--accent);transform:translateY(-2px)}
.chip.hide{display:none}

/* ---------- experiencia ---------- */
.exp{border-top:1px solid var(--line)}
.exp-item{border-bottom:1px solid var(--line)}
.exp-btn{width:100%;background:none;border:none;color:inherit;font:inherit;cursor:pointer;
  display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:baseline;
  padding:26px 4px;text-align:left;transition:.2s}
.exp-btn:hover{padding-left:12px}
.exp-when{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted);white-space:nowrap}
.exp-role{font-size:1.08rem;font-weight:500}
.exp-org{color:var(--accent);font-size:.86rem;font-family:var(--mono)}
.exp-plus{font-family:var(--mono);color:var(--muted);font-size:16px;transition:transform .3s}
.exp-item.open .exp-plus{transform:rotate(45deg)}
.exp-panel{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.4,0,.2,1)}
.exp-panel ul{padding:0 4px 30px 172px;list-style:none}
.exp-panel li{color:var(--muted);font-size:.92rem;margin-bottom:11px;padding-left:18px;position:relative}
.exp-panel li::before{content:"→";position:absolute;left:0;color:var(--accent);font-size:.8rem}

/* ---------- contacto ---------- */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ctc{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--surface);
  transition:.25s;display:block;position:relative;cursor:pointer;text-align:left;font:inherit;color:inherit;width:100%}
.ctc:hover{border-color:var(--accent);transform:translateY(-3px)}
.ctc small{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:9px}
.ctc b{font-size:1.02rem;font-weight:500;word-break:break-all}
.ctc .copied{position:absolute;top:24px;right:24px;font-family:var(--mono);font-size:10px;
  letter-spacing:.12em;color:#22c55e;opacity:0;transition:.2s;text-transform:uppercase}
.ctc.ok .copied{opacity:1}

/* ---------- modal ---------- */
#modal{position:fixed;inset:0;z-index:120;display:none;place-items:center;padding:24px}
#modal.on{display:grid}
#modal .veil{position:absolute;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(4px)}
#modal .box{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  max-width:660px;width:100%;max-height:86vh;overflow:auto;padding:40px;animation:pop .28s cubic-bezier(.4,0,.2,1)}
@keyframes pop{from{opacity:0;transform:translateY(18px)}}
#modal h3{font-size:1.7rem;letter-spacing:-.02em;margin:8px 0 6px}
#modal .m-meta{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
#modal h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);margin:26px 0 12px;font-weight:500}
#modal ul{padding-left:18px;color:var(--muted);font-size:.94rem}
#modal li{margin-bottom:9px}
#modal .x{position:absolute;top:22px;right:22px;background:none;border:1px solid var(--line);
  color:var(--muted);width:30px;height:30px;border-radius:var(--radius);cursor:pointer;font:inherit}
#modal .x:hover{color:var(--txt)}

/* ---------- sobre mí ---------- */
.about{display:grid;grid-template-columns:2fr 3fr;gap:38px;align-items:start}
.about .photo{position:relative;aspect-ratio:4/5;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--surface-2)}
.about .photo img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(100%);transition:filter .4s}
.about .photo:hover img{filter:grayscale(0)}
.about .photo-fallback{position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--mono);font-size:3rem;letter-spacing:.05em;color:var(--muted);font-weight:600}
.about .photo img~.photo-fallback{display:none}
.about-text p{color:var(--muted);font-size:.98rem;margin-bottom:16px;max-width:60ch}
.about-text p:last-child{margin-bottom:0}
.about-text b{color:var(--txt);font-weight:500}

/* ---------- pilares ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pillar{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:28px;transition:.25s}
.pillar:hover{border-color:var(--muted);transform:translateY(-3px)}
.pillar .tag{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;display:block}
.pillar h3{font-size:1.2rem;letter-spacing:-.02em;margin-bottom:10px;font-weight:600}
.pillar p{color:var(--muted);font-size:.92rem}

@media (max-width:860px){
  /* proyectos */
  .card{grid-template-columns:1fr}
  .card-body{padding:22px}
  .card-vis{order:-1;min-height:0;aspect-ratio:16/9}
  .open-hint{display:none}
  /* sobre mí y pilares */
  .about{grid-template-columns:1fr}
  .about .photo{max-width:260px;justify-self:center}
  .pillars{grid-template-columns:1fr}
  /* contacto */
  .contact{grid-template-columns:1fr}
  /* experiencia */
  .exp-btn{grid-template-columns:1fr auto;gap:6px}
  .exp-when{grid-column:1/-1;order:-1;margin-bottom:6px}
  .exp-panel ul{padding-left:18px}
}

/* ---------- reveal (animación CSS: siempre visible al final, no depende del JS) ---------- */
.rv{opacity:0;transform:translateY(22px);animation:rv-in .6s .1s ease-out forwards}
@keyframes rv-in{to{opacity:1;transform:none}}
/* JS con IntersectionObserver puede seguir agregando .in por compatibilidad */
.rv.in{opacity:1;transform:none}