:root{
  --bg: #0b0c0f;
  --elev: #141720;
  --elev-2:#1b2030;
  --text: #e7e9ee;
  --muted:#98a2b3;
  --brand:#6ea8ff;
  --brand-2:#4f83ff;
  --ok:#22c55e;
  --warn:#f59e0b;
  --err:#ef4444;
  --card: #111419;
  --border: #232633;
}

:root[data-theme="light"]{
  --bg:#f8fafc;
  --elev:#ffffff;
  --elev-2:#f1f5f9;
  --text:#0f172a;
  --muted:#475569;
  --brand:#2563eb;
  --brand-2:#1d4ed8;
  --card:#ffffff;
  --border:#e2e8f0;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
}

/* Utilidades */
.container{
  width:min(1200px, 92%);
  margin-inline:auto;
}
.muted{color:var(--muted)}
.sr-only{
  position:absolute !important;
  width:1px; height:1px;
  padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0);
  white-space:nowrap; border:0;
}

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  display:grid; grid-template-columns:auto 40px 1fr;
  align-items:center; gap:12px;
  background:var(--elev); border-bottom:1px solid var(--border);
  padding:10px 16px;
}
.brand{
  display:flex; align-items:center; gap:8px;
  color:var(--text); text-decoration:none; font-weight:800; font-size:1.1rem;
}
.logo{font-size:1.3rem}

.menu-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  background:none; border:1px solid var(--border); border-radius:10px;
  color:var(--text); padding:6px 10px; cursor:pointer;
}
.navwrap{
  justify-self:end; display:none;
}
.navwrap.open{display:block}
.usernav{display:flex; align-items:center; gap:10px}

.search{
  grid-column:1/-1;
  display:flex; gap:8px; margin-top:8px;
}
.search input{
  flex:1; padding:10px 12px; border-radius:12px;
  border:1px solid var(--border); background:var(--elev-2); color:var(--text);
}
.search .btn.sm{padding:10px 14px}

/* Botones */
.btn{
  --btn-bg:transparent; --btn-bd:var(--border); --btn-t:var(--text);
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px; padding:12px 16px; border-radius:12px;
  border:1px solid var(--btn-bd); background:var(--btn-bg); color:var(--btn-t);
  text-decoration:none; cursor:pointer; transition:transform .04s ease, background .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{ --btn-bg:var(--brand); --btn-bd:transparent; --btn-t:#fff }
.btn.primary:hover{ background:var(--brand-2) }
.btn.ghost{ --btn-bg:transparent; --btn-bd:var(--border) }
.btn.sm{padding:8px 12px; border-radius:10px; font-size:.9rem}
.btn.xs{padding:6px 10px; border-radius:8px; font-size:.85rem}
.btn.disabled, .btn[aria-disabled="true"]{opacity:.5; pointer-events:none}

.mode-toggle{
  background:var(--elev-2); border:1px solid var(--border); color:var(--text);
  border-radius:10px; padding:8px 10px; cursor:pointer;
}

/* Hero */
.hero{
  display:grid; grid-template-columns:1fr; gap:16px;
  padding:24px 16px; background:linear-gradient(180deg, var(--elev) 0%, transparent 100%);
}
.hero__text h1{margin:0 0 8px 0; font-size:clamp(1.6rem, 2.4vw + 1rem, 2.4rem)}
.hero__text p{margin:0 0 14px 0; color:var(--muted)}
.hero__actions{display:flex; gap:10px; flex-wrap:wrap}
.hero__ad{
  min-height:80px; border:1px dashed var(--border); border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background:var(--elev); padding:8px;
}

/* Grid de tarjetas */
.grid{
  display:grid;
  grid-template-columns:repeat(1, minmax(0,1fr));
  gap:16px; margin:16px 0 24px;
}
.card{
  background:var(--card); border:1px solid var(--border); border-radius:16px;
  overflow:hidden; display:grid; grid-template-columns:120px 1fr; gap:0;
  min-height:120px;
}
.card--ad{grid-template-columns:1fr}
.thumb{
  background:var(--elev-2); display:flex; align-items:center; justify-content:center;
}
.thumb__ph{
  width:100%; height:100%;
  display:grid; place-items:center;
  font-weight:800; font-size:2rem; color:var(--brand);
}
.card__body{padding:14px}
.card__title{margin:0 0 6px 0; font-size:1.05rem}
.card__desc{margin:0 0 10px 0; color:var(--muted); max-height:3.4em; overflow:hidden}
.card__meta{display:flex; gap:8px; margin-bottom:10px}
.badge{
  display:inline-flex; align-items:center; padding:4px 8px;
  border-radius:999px; background:var(--elev-2); color:var(--muted);
  border:1px solid var(--border); font-size:.8rem;
}
.card__actions{display:flex; gap:8px; flex-wrap:wrap}

/* Listado header */
.results-head{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  margin-top:12px;
}

/* Paginación */
.pager{
  display:flex; align-items:center; gap:12px; justify-content:center; margin:16px 0 8px;
}
.pager__info{color:var(--muted)}

/* Ads */
.ads-bottom{
  margin:16px 0 24px; padding:8px;
  border:1px dashed var(--border); border-radius:14px; background:var(--elev);
}

/* Footer */
.footer{
  border-top:1px solid var(--border); margin-top:24px;
  padding:18px 16px; text-align:center; color:var(--muted);
}

/* Alertas */
.alert{
  padding:12px 14px; border-radius:12px; margin:12px 0;
  border:1px solid var(--border); background:var(--elev);
}
.alert.error{border-color:#7f1d1d; background:#1f0b0b; color:#fecaca}

/* Empty state */
.empty{
  text-align:center; padding:28px 16px; border:1px dashed var(--border);
  border-radius:16px; background:var(--elev);
}
.empty h3{margin:0 0 8px 0}

/* Responsivo */
@media (min-width: 600px){
  .topbar{grid-template-columns:auto 1fr auto}
  .search{grid-column:auto; margin:0; max-width:520px; justify-self:center}
  .navwrap{display:block}
  .menu-toggle{display:none}
}
@media (min-width: 700px){
  .grid{grid-template-columns:repeat(2, minmax(0,1fr))}
}
@media (min-width: 1000px){
  .hero{grid-template-columns:1.2fr .8fr; align-items:center}
  .grid{grid-template-columns:repeat(3, minmax(0,1fr))}
}
@media (min-width: 1300px){
  .grid{grid-template-columns:repeat(4, minmax(0,1fr))}
}