:root{
  --bg:#0f172a;          /* slate-900 */
  --panel:#111827;       /* gray-900 */
  --card:#1f2937;        /* gray-800 */
  --text:#e5e7eb;        /* gray-200 */
  --muted:#9ca3af;       /* gray-400 */
  --primary:#2563eb;     /* blue-600 */
  --primary-hover:#1d4ed8;
  --danger:#ef4444;
  --ok:#10b981;
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans";
  color:var(--text);
  background:linear-gradient(120deg, #0b1022 0%, #101a3a 50%, #0b1022 100%);
}

/* --- Card login (60/40) --- */
.container{
  min-height:100dvh;
  display:flex; align-items:center; justify-content:center;
  padding:24px;
}
.card{
  width:100%;
  max-width: 980px;
  background:rgba(17,24,39,.8);
  border:1px solid rgba(255,255,255,.06);
  border-radius:20px;
  overflow:hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  display:grid;
  grid-template-columns: 3fr 2fr; /* 60% / 40% */
}

.card .left{ position:relative; min-height:360px; background:#0b1022; }
.left .image{
  position:absolute; inset:0;
  background-position:center; background-size:cover;
  filter:brightness(.9) contrast(1.05);
}
.left .overlay{ position:absolute; inset:0; background:linear-gradient(180deg, rgba(0,0,0,.2), rgba(0,0,0,.5)); }
.left .branding{
  position:absolute; left:20px; bottom:20px;
  display:flex; align-items:center; gap:12px; color:#fff;
}
.branding .badge{
  width:42px; height:42px; display:grid; place-items:center;
  border-radius:12px; background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.15); font-size:20px;
}

.card .right{
  padding:32px 28px;
  display:flex; flex-direction:column; justify-content:center; gap:18px;
}
h1.title{ margin:0 0 6px; font-size:26px; font-weight:700; }
p.muted{ margin:0 0 18px; color:var(--muted); font-size:14px; }

.form-group{ display:flex; flex-direction:column; gap:8px; }
.input{
  width:100%; border-radius:12px; padding:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04); color:var(--text); outline:none;
}
.input:focus{ border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.25); }

.btn{
  appearance:none; display:inline-flex; align-items:center; justify-content:center;
  gap:10px; border:none; border-radius:12px; padding:12px 16px;
  background:var(--primary); color:white; font-weight:600; cursor:pointer;
  transition:transform .03s ease, background .2s ease;
}
.btn:hover{ background:var(--primary-hover); }
.btn:active{ transform: translateY(1px); }
.btn.secondary{
  background:transparent; border:1px solid rgba(255,255,255,.15); color:var(--text);
}

.actions{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.small{ font-size:12px; color:var(--muted); }

.alert{
  display:flex; gap:10px; align-items:flex-start;
  border:1px solid rgba(239,68,68,.25); color:#fecaca;
  background: rgba(239,68,68,.08); padding:10px 12px; border-radius:10px; font-size:14px;
}

/* --- Menu layout --- */
.wrapper{ max-width:980px; margin: 40px auto; padding: 0 20px; }
.menu-header{ display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:22px; }
.kit{ display:flex; gap:12px; flex-wrap:wrap; }
.tile{
  flex: 1 1 260px; min-height:110px;
  background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.12);
  border-radius:16px; padding:18px; display:flex; gap:14px; align-items:center;
  text-decoration:none; color:var(--text);
  transition: transform .08s ease, border-color .2s ease, background .2s ease;
}
.tile:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.2); background:rgba(255,255,255,.06); }
.tile .icon{
  width:48px; height:48px; display:grid; place-items:center;
  background: rgba(37,99,235,.12); border:1px solid rgba(37,99,235,.3);
  border-radius:12px; font-size:22px; color:#93c5fd;
}

.user-tag{
  display:inline-flex; gap:8px; align-items:center;
  padding:8px 10px; border-radius:10px;
  background: rgba(16,185,129,.12); border:1px solid rgba(16,185,129,.25);
  color:#a7f3d0; font-weight:600; font-size:13px;
}

/*---------*/
/* === TOPBAR BASE === */
.topbar{
  position: sticky; top: 0; z-index: 50;
  width: 100%; padding: 10px 20px;
  display: flex; align-items: center; gap: 14px;
  backdrop-filter: blur(8px);
}

.topbar--glass{
  background: rgba(17, 24, 39, .55);            /* ~ var(--panel) con alfa */
  border-bottom: 1px solid rgba(255,255,255,.08);
}

/* Pill “ACADÉMICO” */
.logo-box{
  display:inline-flex; align-items:center; justify-content:center;
  height: 36px; padding: 0 16px; border-radius: 12px;
  font-weight: 800; letter-spacing: .5px; text-transform: uppercase;
  text-decoration: none;
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease;
}
.logo-box--primary{
  background: var(--primary);
  color: #fff; border: 1px solid rgba(255,255,255,.15);
  box-shadow: 0 6px 16px rgba(37,99,235,.25);
}
.logo-box--primary:hover{ transform: translateY(-1px); }
.logo-box--primary:active{ transform: translateY(0); }

/* Texto a la derecha */
.system-name{
  font-weight: 700; font-size: 16px;
  color: var(--text);
  opacity: .95;
}


.topbar--solid{
  background: linear-gradient(180deg, #0f172a 0%, #111827 100%); /* slate-900 -> gray-900 */
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.logo-box--outline{
  background: rgba(255,255,255,.03);
  color: var(--text);
  border: 1px solid rgba(255,255,255,.18);
}
.logo-box--outline:hover{
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}


/* ===== MENÚ RESPONSIVO ===== */

/* Contenedor */
.wrapper{
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 clamp(12px, 3vw, 24px);
}

/* Encabezado */
.menu-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
  flex-wrap:wrap;
}
.menu-title{
  margin:0;
  font-size: clamp(18px, 2.4vw, 24px);
  display:flex; align-items:center; gap:10px;
}
.menu-actions{
  display:flex; align-items:center; gap:10px;
}

/* Grid de tarjetas: auto-fit se adapta a cualquier ancho */
.kit-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(10px, 2.2vw, 16px);
}

/* Tarjeta */
.tile{
  display:flex; align-items:center; gap:14px;
  padding: clamp(14px, 2.4vw, 18px);
  min-height: 110px;
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  text-decoration:none;
  color: var(--text);
  transition: transform .08s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
  outline: none;
}
.tile:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.06);
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}
.tile:focus-visible{
  box-shadow: 0 0 0 3px rgba(37,99,235,.35);
  border-color: var(--primary);
}

/* Ícono */
.tile .icon{
  width: 52px; height: 52px;
  display:grid; place-items:center;
  border-radius: 12px;
  background: rgba(37,99,235,.12);
  border: 1px solid rgba(37,99,235,.3);
  font-size: 22px;
  color: #93c5fd;
  flex: 0 0 auto;
}

/* Contenido de la tarjeta */
.tile-body{ display:flex; flex-direction:column; gap:4px; }
.tile-title{ font-weight:700; font-size: clamp(15px, 2.2vw, 16px); }
.tile-sub{ color: var(--muted); font-size: 13px; }

/* Etiqueta de usuario (ya existente, aseguramos responsividad) */
.user-tag{
  display:inline-flex; gap:8px; align-items:center;
  padding:8px 10px; border-radius:10px;
  background: rgba(16,185,129,.12); border:1px solid rgba(16,185,129,.25);
  color:#a7f3d0; font-weight:600; font-size:13px;
}

/* Botones */
.btn{
  appearance:none;
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px; border:none; border-radius:12px; padding:12px 16px;
  background:var(--primary); color:white; font-weight:600; cursor:pointer;
  transition:transform .03s ease, background .2s ease;
}
.btn.secondary{
  background:transparent; border:1px solid rgba(255,255,255,.15); color:var(--text);
}



/* ===== Footer ===== */
.app-footer {
  width: 100%;
  padding: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--muted);         /* O puedes usar var(--text) si prefieres más contraste */
  background: rgba(0,0,0,0.2); /* Se integra con tu estilo oscuro */
  border-top: 1px solid rgba(255,255,255,0.08);
}

.app-footer a {
  color: var(--primary);       /* Azul institucional */
  font-weight: 600;
  text-decoration: none;
}

.app-footer a:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}



/* Responsivo: apilar 60/40 a 100% en móvil */
@media (max-width: 900px){
  .card{ grid-template-columns: 1fr; }
  .left{ min-height:220px; }
  .right{ padding:24px 20px; }

/* ===== FORZAR UNA COLUMNA EN MÓVIL ===== */
.kit,
  .kit-grid {
    display: grid;
    grid-template-columns: 1fr !important; /* UNA sola columna */
    gap: 12px;
  }

  .tile {
    width: 100%;
    min-height: 90px;
  }


}
/* Responsive */
@media (max-width: 640px){
  .system-name{ font-size: 15px; }
  .logo-box{ height: 34px; padding: 0 14px; border-radius: 10px; }
}
/* Breakpoints útiles */
@media (max-width: 820px){
  .menu-actions{ width:100%; justify-content:space-between; }
}

@media (max-width: 480px){
  .tile{
    min-height: 96px;
    gap:12px;
    padding: 14px;
  }
  .tile .icon{ width:46px; height:46px; font-size:20px; }
  .tile-sub{ font-size:12px; }
}