/* =============================================================================
   Matrícula V3 · Web — Shell (sidebar + main) y vista de Alertas en vivo
   ============================================================================= */

.app { display: flex; height: 100dvh; overflow: hidden; }

/* ---- Sidebar ---- */
.sidebar {
  flex: 0 0 260px;
  background: linear-gradient(180deg, var(--titlebar-2), var(--titlebar));
  color: #e9e7df;
  display: flex; flex-direction: column;
  border-right: 3px solid var(--yellow);
}
.brand { padding: 22px 20px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand h1 { font-size: 18px; margin: 0; font-weight: 700; letter-spacing: .01em; }

/* ---- Pantalla de acceso (sobria, sin información) ---- */
.lock { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: #1f1f1f; }
.lock-box { display: flex; gap: 8px; }
.lock-input {
  width: 220px; padding: 13px 15px; font-family: inherit; font-size: 15px;
  color: #e9e7df; background: #2b2b2b; border: 1px solid #3a3a3a; border-radius: 9px; outline: none;
}
.lock-input::placeholder { color: #6f6d66; }
.lock-input:focus { border-color: #555; }
.lock-go {
  padding: 13px 17px; font-family: inherit; font-size: 16px; line-height: 1; color: #cfccc3; cursor: pointer;
  background: #2b2b2b; border: 1px solid #3a3a3a; border-radius: 9px;
}
.lock-go:hover { background: #333; color: #fff; }
.lock-box.shake { animation: lockshake .3s ease; }
@keyframes lockshake { 0%,100%{transform:translateX(0)} 20%,60%{transform:translateX(-7px)} 40%,80%{transform:translateX(7px)} }
.lock-btn { background: transparent; border: none; color: #7c7a72; font: inherit; font-size: 11px; cursor: pointer; padding: 0; }
.lock-btn:hover { color: #cfccc3; }

.nav { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 2px; flex: 1; overflow-y: auto; }
.nav-group { display: flex; flex-direction: column; gap: 2px; }
.nav-group + .nav-group { margin-top: 12px; }
.nav-label { font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: #807d74; font-weight: 700; padding: 4px 14px 5px; }
.nav button {
  text-align: left; border: none; background: transparent; color: #cfccc3; cursor: pointer;
  font-family: inherit; font-size: 14.5px; font-weight: 600;
  padding: 11px 14px; border-radius: 9px; display: flex; align-items: center; gap: 10px;
  transition: background .12s ease, color .12s ease;
}
.nav button:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav button.active { background: var(--yellow); color: #241f00; }
.nav button:disabled { opacity: .4; cursor: default; }
.nav .soon { margin-left: auto; font-size: 9.5px; letter-spacing: .08em; text-transform: uppercase; color: #8a877e; }
.foot { padding: 14px 18px; font-size: 11px; color: #7c7a72; border-top: 1px solid rgba(255,255,255,.08); }

.main { flex: 1; overflow-y: auto; position: relative; }
.wrap { padding: 26px 34px 60px; }

@media (max-width: 760px) {
  .app { flex-direction: column; }
  .sidebar { flex: 0 0 auto; border-right: none; border-bottom: 3px solid var(--yellow); }
  .nav { flex-direction: row; flex-wrap: wrap; overflow-x: auto; }
  .foot { display: none; }
  .wrap { padding: 18px 16px 40px; }
}

h2.page { font-size: 26px; margin: 0 0 4px; }
p.lead { margin: 0 0 18px; color: var(--ink-soft); font-size: 15px; line-height: 1.55; max-width: 680px; }

/* ---- Barra de estado de conexión ---- */
.conn {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 12px 16px; margin-bottom: 20px;
}
.conn .item { display: flex; align-items: center; gap: 8px; font-size: 13.5px; }
.conn .dot { width: 11px; height: 11px; border-radius: 50%; background: #999; flex: 0 0 auto; }
.conn .dot.on { background: var(--green); }
.conn .dot.off { background: var(--red); }
.conn .dot.warn { background: var(--yellow-deep); }
.conn .spacer { flex: 1; }
.conn button {
  font-family: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
  border: 1px solid var(--line); border-radius: var(--r-sm); padding: 8px 13px;
  background: linear-gradient(180deg, #f2f0ea, #dad8d0); color: var(--ink);
}
.conn button.primary { background: linear-gradient(180deg, #ffd84a, var(--yellow)); border-color: var(--yellow-deep); color: #241f00; }

/* ---- Tarjetas de alerta ---- */
.alerts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.alert-card {
  background: var(--panel); border: 1px solid var(--line); border-left: 6px solid var(--pri-media);
  border-radius: var(--r-lg); padding: 14px 16px; box-shadow: 0 1px 0 #fff inset;
  display: flex; flex-direction: column; gap: 8px;
}
.alert-card.pri-alta { border-left-color: var(--pri-alta); }
.alert-card.pri-media { border-left-color: var(--pri-media); }
.alert-card.pri-baja { border-left-color: var(--pri-baja); }

.alert-top { display: flex; align-items: center; gap: 10px; }
.alert-plate {
  font-family: var(--mono); font-weight: 800; font-size: 22px; letter-spacing: .04em;
  background: var(--titlebar); color: var(--yellow); padding: 4px 10px; border-radius: var(--r-sm);
}
.alert-type { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.alert-x {
  margin-left: auto; border: none; background: transparent; cursor: pointer;
  font-size: 18px; line-height: 1; color: var(--ink-soft); padding: 2px 6px; border-radius: 6px;
}
.alert-x:hover { background: rgba(0,0,0,.06); color: var(--ink); }
.alert-meta { display: grid; grid-template-columns: max-content 1fr; gap: 3px 12px; font-size: 13px; }
.alert-meta dt { color: var(--ink-soft); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.alert-meta dd { margin: 0; font-weight: 600; }
.alert-fee { color: var(--red); font-weight: 800; }
.alert-test { font-size: 10.5px; color: var(--yellow-deep); font-weight: 700; letter-spacing: .06em; }
.alert-time { font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); }

.empty {
  padding: 48px 24px; text-align: center; color: var(--ink-soft);
  background: var(--panel); border: 1px dashed var(--line); border-radius: var(--r-lg);
}
.empty .big { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }