/* ============================================================
   catto.ar — Sistema de diseño base
   Paleta y estética heredadas del Dashboard de Electrónica.
   Se reutiliza en todas las páginas del sitio.
   ============================================================ */

:root{
  --bg:#0d1117; --panel:#161b22; --panel2:#1c2230; --line:#2a3140;
  --txt:#e6edf3; --muted:#9aa7b4; --soft:#7d8a99;
  --accent:#58a6ff; --accent2:#1f6feb;
  --ok:#3fb950; --warn:#d29922; --hot:#f85149; --violet:#a371f7;
  --r:14px; --shadow:0 8px 30px rgba(0,0,0,.35);
  --maxw:1320px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 80% -10%, #1b2740 0%, var(--bg) 55%);
  background-attachment:fixed;
  color:var(--txt); font-family:"Segoe UI",system-ui,Roboto,Arial,sans-serif;
  line-height:1.55; -webkit-font-smoothing:antialiased; min-height:100vh;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25}

/* ---- Layout ---- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---- Header / navegación ---- */
header.site{
  position:sticky;top:0;z-index:50;backdrop-filter:blur(8px);
  background-color:rgba(13,17,23,.82);
  border-bottom:1px solid var(--line);
}
.site .container{display:flex;align-items:center;gap:18px;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--txt)}
.brand:hover{text-decoration:none}
.brand .logo{
  width:30px;height:30px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent2),var(--accent));font-size:17px;
}
.brand .dom{color:var(--accent)}
nav.main{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
nav.main a{
  padding:8px 14px;border-radius:9px;color:var(--muted);font-size:14px;
  border:1px solid transparent;
}
nav.main a:hover{color:var(--txt);text-decoration:none}
nav.main a.active{background:var(--panel);border-color:var(--line);color:var(--txt)}

/* ---- Hero ---- */
.hero{padding:64px 0 34px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.hero h1{margin:0 0 12px;font-size:40px;letter-spacing:-.5px}
.hero h1 .accent{color:var(--accent)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:680px;margin:0}
.hero p.quote{margin:14px 0 0;color:var(--soft);font-size:15px;font-style:italic;
  border-left:2px solid var(--accent2);padding-left:14px;max-width:680px;position:relative;cursor:help;display:inline-block}
.hero p.quote::after{content:attr(data-tr);position:absolute;left:14px;top:100%;margin-top:8px;
  background:var(--panel);border:1px solid var(--line);color:var(--txt);font-style:normal;
  font-size:13px;line-height:1.5;padding:8px 12px;border-radius:8px;max-width:380px;width:max-content;
  box-shadow:var(--shadow);opacity:0;transform:translateY(-4px);transition:opacity .15s,transform .15s;
  pointer-events:none;z-index:6;font-style:italic}
.hero p.quote:hover::after{opacity:1;transform:translateY(0)}
.hero-inner{display:flex;align-items:center;gap:28px;position:relative;z-index:1}
.hero-text{flex:1;min-width:0}
.hero-img{width:auto;max-height:200px;max-width:34%;height:auto;flex:none;
  filter:drop-shadow(0 8px 34px rgba(88,166,255,.22))}
.hero .starfield{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:hidden}
.hero .starfield i{position:absolute;display:block;border-radius:50%}
/* nebulosa Vía Láctea (mismo estilo que el login del aula), núcleo hacia la derecha */
.hero .mw{position:absolute;inset:0;filter:blur(10px);opacity:.9;
  background:
    radial-gradient(26% 60% at 82% 74%, rgba(216,183,140,.24), transparent 62%),
    radial-gradient(15% 34% at 86% 78%, rgba(236,150,168,.16), transparent 60%),
    radial-gradient(34% 66% at 72% 56%, rgba(150,120,95,.13), transparent 68%),
    radial-gradient(40% 80% at 62% 42%, rgba(120,140,196,.12), transparent 70%),
    radial-gradient(30% 66% at 50% 26%, rgba(112,132,188,.09), transparent 72%)}
.hero .mw-core{position:absolute;left:82%;top:74%;width:150px;height:80px;
  transform:translate(-50%,-50%);filter:blur(6px);border-radius:50%;
  background:radial-gradient(circle at 50% 55%, rgba(240,214,170,.30), rgba(230,160,150,.12) 45%, transparent 70%)}
.hero .orion,.hero .orion-hit{position:absolute;top:18px;right:31%;width:150px;height:auto}
.hero .orion{z-index:0;pointer-events:none;opacity:.95}
.hero .orion-hit{z-index:3;pointer-events:none}
.hero .orion-hit circle{pointer-events:all;cursor:help}
@media(max-width:900px){.hero .orion,.hero .orion-hit{right:7%;top:12px;width:112px}}
@media(max-width:680px){
  .hero-inner{flex-direction:column;align-items:flex-start}
  .hero-img{width:170px;max-width:55%;align-self:center;margin-top:10px}
  .hero .orion,.hero .orion-hit{display:none}
}
.hero .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.chip{
  font-size:12.5px;padding:5px 12px;border-radius:20px;
  background:var(--panel);border:1px solid var(--line);color:var(--muted);
}

/* ---- Secciones ---- */
section.block{padding:40px 0}
.block h2{font-size:13px;text-transform:uppercase;letter-spacing:1.4px;color:var(--soft);margin:0 0 4px}
.block .h2sub{color:var(--muted);font-size:14px;margin:0 0 22px}

/* ---- Grilla de tarjetas ---- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:20px;display:flex;flex-direction:column;gap:10px;
  transition:transform .14s,border-color .14s;position:relative;overflow:hidden;
}
.card.link:hover{transform:translateY(-3px);border-color:var(--accent);text-decoration:none}
.card .ic{font-size:26px}
.card h3{margin:0;font-size:17px;color:var(--txt)}
.card p{margin:0;color:var(--muted);font-size:13.5px;flex:1}
.card .meta{display:flex;gap:8px;flex-wrap:wrap;font-size:11px;color:var(--soft);margin-top:4px}
.card .meta .badge{
  padding:2px 9px;border-radius:20px;border:1px solid var(--line);background:var(--panel2);
}
.card .go{font-size:13px;color:var(--accent);font-weight:600;margin-top:2px}
.card.soon{opacity:.62}
.card.soon .go{color:var(--soft)}
.card .accent-bar{position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent)}
.card .visit-num{flex:1;display:flex;align-items:center}
.card .visit-num span{font-size:34px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;line-height:1}

/* ---- Lista de descargas ---- */
.dl-list{display:flex;flex-direction:column;gap:10px}
.dl{
  display:flex;align-items:center;gap:14px;background:var(--panel);
  border:1px solid var(--line);border-radius:11px;padding:14px 16px;
  transition:border-color .14s;
}
.dl:hover{border-color:var(--accent);text-decoration:none}
.dl .di{font-size:22px;flex:none}
.dl .dinfo{flex:1;min-width:0}
.dl .dinfo b{display:block;color:var(--txt);font-size:14.5px}
.dl .dinfo span{color:var(--muted);font-size:12.5px}
.dl .dsize{color:var(--soft);font-size:12px;white-space:nowrap}
.dl .darrow{color:var(--accent);font-size:18px}

/* ---- Footer ---- */
footer.site{
  border-top:1px solid var(--line);margin-top:30px;padding:30px 0;
  color:var(--soft);font-size:13px;
}
footer.site .container{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
footer.site a{color:var(--muted)}
footer.site .flinks{display:flex;gap:18px;flex-wrap:wrap}
/* Créditos de terceros (p.ej. licencia de las piezas de ajedrez) */
footer.site .credits{flex-basis:100%;color:#5d6874;font-size:11px}

/* ---- Utilidades ---- */
.note{
  background:linear-gradient(135deg,rgba(31,111,235,.12),rgba(63,185,80,.07));
  border:1px solid var(--line);border-radius:11px;padding:14px 16px;
  font-size:13.5px;color:var(--muted);
}
.note b{color:var(--txt)}
.empty{color:var(--soft);font-size:13.5px;padding:18px;border:1px dashed var(--line);border-radius:11px;text-align:center}
.hidden{display:none!important}

::-webkit-scrollbar{height:11px;width:11px}
::-webkit-scrollbar-thumb{background:#30363d;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

@media(max-width:640px){
  .hero h1{font-size:30px}
  .site .container{height:auto;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
  nav.main{margin-left:0;width:100%}
}


/* ============================================================
   Tarjeta de ajedrez — última de la grilla, al ancho del tablero
   ============================================================ */
.card.chess{grid-column:1/-1;max-width:430px;padding:16px 18px;gap:0}
.chess-hd{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.chess-hd .bar{width:3px;height:20px;background:var(--accent);border-radius:2px}
.chess-hd h3{margin:0;font-size:16px}
.chess-pill{
  margin-left:auto;font-size:11px;padding:3px 10px;border-radius:999px;
  background:var(--panel2);border:1px solid var(--line);color:var(--muted);
}
.chess-pill.live{background:rgba(63,185,80,.15);border-color:rgba(63,185,80,.4);color:var(--ok)}
.chess-pill.past{background:rgba(210,153,34,.14);border-color:rgba(210,153,34,.34);color:var(--warn)}

.chess-board{width:100%;height:auto;display:block;border-radius:5px}
.chess-board .cc{font:600 10px "Segoe UI",sans-serif}

.chess-pl{display:flex;align-items:center;gap:8px}
.chess-av{
  width:28px;height:28px;border-radius:6px;flex:none;background:var(--panel2);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  color:var(--muted);font-size:11px;font-weight:600;
}
.chess-av img{width:100%;height:100%;object-fit:cover}
.chess-nm{color:var(--txt);font-size:13.5px;line-height:1.2}
.chess-rt{color:var(--soft);font-size:11px}

.chess-ctrls{display:flex;align-items:center;gap:6px;margin-top:12px}
.chess-ctrls button{
  background:var(--panel2);border:1px solid var(--line);color:var(--txt);
  border-radius:7px;padding:5px 10px;cursor:pointer;font-size:13px;line-height:1.4;
}
.chess-ctrls button:hover{border-color:var(--accent);color:var(--accent)}
.chess-ctrls button.pri{background:var(--accent2);border-color:var(--accent2);color:#fff}
.chess-count{
  margin-left:auto;color:var(--soft);font-size:11.5px;
  font-family:"Cascadia Code",Consolas,monospace;
}

.chess-foot{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px}
.chess-badge{font-size:11.5px;padding:2px 9px;border-radius:999px}
.chess-badge.ok{background:rgba(63,185,80,.16);color:var(--ok)}
.chess-badge.lose{background:rgba(248,81,73,.14);color:var(--hot)}
.chess-badge.draw{background:rgba(154,167,180,.16);color:var(--muted)}
.chess-badge.live{background:rgba(88,166,255,.16);color:var(--accent)}
.chess-meta{color:var(--muted);font-size:12px}
.chess-foot a{margin-left:auto;font-size:12px;color:var(--accent)}

/* ============================================================
   Tablero para jugar de a dos, al lado de la última partida.
   Las dos tarjetas comparten fila y bajan una debajo de la otra
   cuando la pantalla no da para las dos.
   ============================================================ */
.chess-row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:16px;align-items:flex-start}
.chess-row > .card.chess{grid-column:auto;flex:1 1 340px;max-width:430px}
.cp-invite{margin:0 0 12px;color:var(--muted);font-size:13px}
.cp-setup{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.cp-setup label{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--soft)}
.cp-setup select{
  flex:1;min-width:150px;background:var(--panel2);color:var(--txt);border:1px solid var(--line);
  border-radius:8px;padding:6px 8px;font-size:12.5px;font-family:inherit;outline:none;cursor:pointer;
}
.cp-setup select:focus{border-color:var(--accent)}
.cp-setup button{
  background:var(--panel2);color:var(--muted);border:1px solid var(--line);border-radius:8px;
  padding:6px 11px;font-size:12.5px;font-family:inherit;cursor:pointer;
}
.cp-setup button:hover{border-color:var(--accent);color:var(--accent)}
.cp-clockrow{padding:5px 7px;margin:6px 0;border:1px solid transparent;border-radius:9px}
.cp-clockrow.activo{border-color:var(--accent);background:rgba(88,166,255,.07)}
.cp-av{font-size:18px;line-height:1}
.cp-av.wh{background:#eeeed2;color:#0f1216}
.cp-av.bl{background:#3b4048;color:#fff}
.cp-clock{
  margin-left:auto;font-size:19px;font-weight:700;color:var(--txt);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.cp-clock.apuro{color:var(--hot)}
.cp-status{background:var(--panel2);color:var(--muted);margin-left:auto;text-align:right}
.chess-ctrls button:disabled{opacity:.4;cursor:default;border-color:var(--line);color:var(--muted)}
.cp-promo{position:absolute;inset:0;z-index:3;display:grid;place-items:center;background:rgba(13,17,23,.86)}
.cp-promo-box{text-align:center;color:var(--muted);font-size:13px}
.cp-promo-box > div{display:flex;gap:8px;margin-top:10px}
.cp-promo-box button{
  width:54px;height:54px;padding:4px;background:var(--panel2);
  border:1px solid var(--line);border-radius:10px;cursor:pointer;
}
.cp-promo-box button:hover{border-color:var(--accent)}
.cp-promo-box svg{width:100%;height:100%;display:block}