/* ════════════════════════════════════════════════════════
   MIAULA — SISTEMA DE DISEÑO MAESTRO  v1
   Archivo: /css/miaula.css
   Extraído del index.html (landing v4) para que TODAS las
   pantallas (alumno, admin, juegos) compartan el mismo look.

   Cómo usarlo en cualquier página:
   <link href="https://fonts.googleapis.com/css2?family=Cabinet+Grotesk:wght@400;500;700;800;900&family=Plus+Jakarta+Sans:ital,wght@0,400;0,600;0,700;0,800;1,600&display=swap" rel="stylesheet">
   <link rel="stylesheet" href="/css/miaula.css">
══════════════════════════════════════════════════════════ */

/* ── 1. TOKENS (los mismos del index) ─────────────────── */
:root{
  --na:#FF5C2B; --na-l:#FFF0EB;   /* naranja Olivo */
  --mo:#7C3AED; --mo-l:#F3EEFF;   /* morado */
  --ve:#059669; --ve-l:#ECFDF5;   /* verde */
  --az:#2563EB; --az-l:#EFF6FF;   /* azul */
  --am:#F59E0B; --am-l:#FFFBEB;   /* ámbar / monedas */
  --ro:#DB2777;                   /* rosa */
  --bg:#FAFBFF; --tx:#0F0A1E;
  --gr:#64748B; --bo:#E8ECF6;
  --fh:'Cabinet Grotesk',sans-serif;
  --ft:'Plus Jakarta Sans',sans-serif;
  --r-sm:12px; --r-md:18px; --r-lg:24px; --r-xl:32px;
  --xs:0 1px 4px rgba(15,10,30,.06);
  --sm:0 3px 14px rgba(15,10,30,.08);
  --md:0 8px 32px rgba(15,10,30,.10);
  --lg:0 24px 64px rgba(15,10,30,.12);
}

/* ── 2. BASE ──────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ft);background:var(--bg);color:var(--tx);
  line-height:1.6;overflow-x:hidden;
}
/* Fondo con auroras suaves (igual que el index) */
body.con-fondo::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 55% 45% at -5% 0%,  rgba(124,58,237,.07) 0%,transparent 60%),
    radial-gradient(ellipse 45% 45% at 105% 5%,  rgba(255,92,43,.06)  0%,transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 100%, rgba(37,99,235,.05)  0%,transparent 60%);
}
h1,h2,h3,h4{font-family:var(--fh);letter-spacing:-.02em;line-height:1.15}
a{color:var(--az)}
img,svg{max-width:100%;display:block}

/* Contenedor estándar */
.c{
  width:100%;max-width:1280px;margin:0 auto;
  padding:0 clamp(20px,5vw,64px);
  position:relative;z-index:1;
}

/* ── 3. NAV (barra superior fija) ─────────────────────── */
.nav{
  position:sticky;top:0;z-index:200;
  background:rgba(250,251,255,.88);
  backdrop-filter:blur(24px) saturate(160%);
  -webkit-backdrop-filter:blur(24px) saturate(160%);
  border-bottom:1px solid rgba(232,236,246,.9);
}
.nav-inner{
  max-width:1280px;margin:0 auto;
  padding:0 clamp(20px,5vw,64px);
  height:62px;display:flex;align-items:center;
  justify-content:space-between;gap:20px;
}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.nav-logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(145deg,#FF8C42,#CC4800);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(204,72,0,.28),inset 0 1px 0 rgba(255,255,255,.22);
  flex-shrink:0;overflow:hidden;
}
.nav-logo-name{font-family:var(--fh);font-weight:900;font-size:1.18rem;color:var(--tx);letter-spacing:-.3px}
.nav-logo-name span{color:var(--na)}
.nav-links{display:flex;align-items:center;gap:32px;list-style:none}
.nav-links a{font-size:.88rem;font-weight:700;color:var(--gr);text-decoration:none;transition:color .15s}
.nav-links a:hover,.nav-links a.activo{color:var(--tx)}

/* ── 4. BOTONES ───────────────────────────────────────── */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  background:linear-gradient(135deg,var(--na),#FF8560);
  color:#fff;border:none;border-radius:var(--r-md);
  font-family:var(--ft);font-size:.98rem;font-weight:800;
  cursor:pointer;text-decoration:none;white-space:nowrap;letter-spacing:-.1px;
  box-shadow:0 8px 24px rgba(255,92,43,.32),0 2px 0 rgba(200,60,0,.28) inset;
  transition:transform .15s,box-shadow .15s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(255,92,43,.38)}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;background:#fff;color:var(--tx);
  border:1.5px solid var(--bo);border-radius:var(--r-md);
  font-family:var(--ft);font-size:.95rem;font-weight:700;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  box-shadow:var(--xs);
  transition:border-color .2s,box-shadow .2s,transform .15s;
}
.btn-secondary:hover{border-color:#c0cadc;box-shadow:var(--sm);transform:translateY(-2px)}
.btn-ghost{
  padding:8px 20px;border:1.5px solid var(--bo);border-radius:50px;
  background:#fff;font-family:var(--ft);font-size:.83rem;font-weight:700;
  color:var(--tx);text-decoration:none;cursor:pointer;
  box-shadow:var(--xs);white-space:nowrap;
  transition:border-color .15s,box-shadow .15s;
}
.btn-ghost:hover{border-color:#c0cadc;box-shadow:var(--sm)}
.btn-dark{
  padding:9px 22px;background:var(--tx);color:#fff;border:none;border-radius:50px;
  font-family:var(--ft);font-size:.83rem;font-weight:700;
  cursor:pointer;text-decoration:none;white-space:nowrap;display:inline-block;
  box-shadow:0 4px 12px rgba(15,10,30,.22);
  transition:opacity .15s,transform .15s;
}
.btn-dark:hover{opacity:.84;transform:translateY(-1px)}
/* Botón de peligro (borrar) — solo para admin */
.btn-peligro{
  padding:9px 20px;background:#fff;color:#DC2626;
  border:1.5px solid #FECACA;border-radius:var(--r-sm);
  font-family:var(--ft);font-size:.85rem;font-weight:700;cursor:pointer;
  transition:background .15s;
}
.btn-peligro:hover{background:#FEF2F2}

/* ── 5. TARJETAS Y PANELES ────────────────────────────── */
.tarjeta{
  background:#fff;border:1.5px solid var(--bo);
  border-radius:var(--r-lg);padding:clamp(20px,3vw,28px);
  box-shadow:var(--sm);
}
.tarjeta-hover{transition:transform .18s,box-shadow .18s}
.tarjeta-hover:hover{transform:translateY(-4px);box-shadow:var(--md)}

/* Tarjeta de estadística (XP, monedas, alumnos, etc.) */
.stat{
  background:#fff;border:1.5px solid var(--bo);
  border-radius:var(--r-md);padding:14px 18px;
  box-shadow:var(--sm);text-align:center;
  display:flex;flex-direction:column;gap:2px;
}
.stat-v{font-family:var(--fh);font-weight:900;font-size:1.5rem;letter-spacing:-1px;line-height:1.1}
.stat-l{font-size:.7rem;font-weight:700;color:var(--gr);text-transform:uppercase;letter-spacing:.04em}
.stat-v.naranja{color:var(--na)} .stat-v.morado{color:var(--mo)}
.stat-v.verde{color:var(--ve)}  .stat-v.ambar{color:var(--am)}

/* ── 6. PÍLDORAS Y ETIQUETAS ──────────────────────────── */
.pill{
  display:inline-flex;align-items:center;gap:5px;
  background:#fff;border:1.5px solid var(--bo);
  border-radius:50px;padding:5px 13px;
  font-size:.78rem;font-weight:700;color:var(--gr);box-shadow:var(--xs);
}
.etiqueta{
  display:inline-block;border-radius:50px;padding:4px 12px;
  font-size:.72rem;font-weight:800;
}
.etiqueta.naranja{background:var(--na-l);color:var(--na)}
.etiqueta.morado{background:var(--mo-l);color:var(--mo)}
.etiqueta.verde{background:var(--ve-l);color:var(--ve)}
.etiqueta.azul{background:var(--az-l);color:var(--az)}
.etiqueta.ambar{background:var(--am-l);color:#B45309}

/* ── 7. GAMIFICACIÓN: XP, monedas, nivel ──────────────── */
.barra-xp{height:16px;background:var(--mo-l);border-radius:50px;overflow:hidden}
.barra-xp .lleno{
  height:100%;border-radius:50px;
  background:linear-gradient(90deg,#9B7BFF,var(--mo));
  transition:width .8s ease;
}
.moneda-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--am-l);border:1.5px solid #FDE68A;
  border-radius:50px;padding:6px 14px;
  font-weight:800;font-size:.9rem;color:#92400E;
}
.nivel-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--mo-l);border:1.5px solid #DDD1FF;
  border-radius:50px;padding:6px 14px;
  font-weight:800;font-size:.9rem;color:var(--mo);
}

/* ── 8. FORMULARIOS (login, admin) ────────────────────── */
.campo{margin-bottom:16px}
.campo label{
  display:block;font-size:.8rem;font-weight:800;
  color:var(--tx);margin-bottom:6px;
}
.campo input,.campo select,.campo textarea{
  width:100%;padding:12px 16px;
  border:1.5px solid var(--bo);border-radius:var(--r-sm);
  font-family:var(--ft);font-size:.95rem;font-weight:600;color:var(--tx);
  background:#fff;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.campo input:focus,.campo select:focus,.campo textarea:focus{
  border-color:var(--na);box-shadow:0 0 0 4px rgba(255,92,43,.12);
}
.campo .ayuda{font-size:.75rem;color:var(--gr);font-weight:600;margin-top:5px}

/* ── 9. TABLAS (panel admin) ──────────────────────────── */
.tabla-wrap{
  background:#fff;border:1.5px solid var(--bo);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sm);
}
.tabla{width:100%;border-collapse:collapse}
.tabla th{
  text-align:left;padding:13px 18px;
  font-size:.72rem;font-weight:800;text-transform:uppercase;
  letter-spacing:.05em;color:var(--gr);
  background:#F6F8FD;border-bottom:1.5px solid var(--bo);
}
.tabla td{
  padding:13px 18px;font-size:.9rem;font-weight:600;
  border-bottom:1px solid var(--bo);
}
.tabla tr:last-child td{border-bottom:none}
.tabla tr:hover td{background:#FAFBFF}

/* ── 10. ENCABEZADO DE PÁGINA INTERNA ─────────────────── */
.pagina-head{padding:clamp(28px,4vw,44px) 0 clamp(18px,3vw,28px)}
.pagina-eyebrow{
  display:block;font-size:.72rem;font-weight:800;
  text-transform:uppercase;letter-spacing:.08em;
  color:var(--na);margin-bottom:8px;
}
.pagina-titulo{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:900}
.pagina-sub{font-size:.95rem;font-weight:600;color:var(--gr);margin-top:8px;max-width:640px}

/* ── 11. REJILLAS ─────────────────────────────────────── */
.grid-2{display:grid;grid-template-columns:1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr;gap:16px}
.grid-4{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(min-width:760px){
  .grid-2{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr 1fr}
  .grid-4{grid-template-columns:repeat(4,1fr)}
}

/* ── 12. AVISOS ───────────────────────────────────────── */
.aviso{
  border-radius:var(--r-md);padding:13px 18px;
  font-size:.88rem;font-weight:700;
  display:flex;align-items:flex-start;gap:10px;
}
.aviso.exito{background:var(--ve-l);color:#065F46;border:1.5px solid #A7F3D0}
.aviso.error{background:#FEF2F2;color:#991B1B;border:1.5px solid #FECACA}
.aviso.info{background:var(--az-l);color:#1E40AF;border:1.5px solid #BFDBFE}

/* ── 13. ANIMACIONES ──────────────────────────────────── */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes float-hero{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:.4}}
.rise{animation:rise .7s ease both}
.flota{animation:float-hero 4s ease-in-out infinite}
@media(prefers-reduced-motion:reduce){
  .rise,.flota{animation:none}
}

/* Reveal al hacer scroll (requiere el script del index) */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.reveal.visible{opacity:1;transform:none}