:root {
  --navy-deep: #0F3158;
  --navy: #1B3A63;
  --blue-band: #3C6E9C;
  --blue-mid: #2E5F95;
  --blue-light: #EAF1F8;
  --ink: #1A1A1A;
  --ink-soft: #3B5673;
  --paper: #FFFFFF;
  --danger: #B3261E;
  --ok: #1E7A34;
  --font-display: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Open Sans", "Segoe UI", sans-serif;
  --radius: 8px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--blue-light);
  line-height: 1.5;
}
h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--navy-deep);
  margin: 0 0 6px;
}
a { color: var(--blue-mid); }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(15, 49, 88, 0.15);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
}
.login-card h1 { font-size: 1.3rem; text-transform: uppercase; letter-spacing: .03em; }
.login-card p.sub { color: var(--ink-soft); margin-bottom: 24px; font-size: .92rem; }

/* ---------- Layout general ---------- */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px;
  background: var(--navy-deep);
  color: #fff;
  padding: 20px 14px;
  flex-shrink: 0;
}
.sidebar h2 { color: #fff; font-size: 1rem; margin-bottom: 2px; }
.sidebar .who { color: #bcd0e6; font-size: .8rem; margin-bottom: 22px; }
.sidebar nav a {
  display: block;
  color: #dbe6f3;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: .92rem;
  margin-bottom: 4px;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); }
.sidebar nav a.active { background: var(--blue-mid); color: #fff; font-weight: 600; }
.sidebar .logout-btn {
  margin-top: 24px;
  width: 100%;
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
  padding: 9px;
  border-radius: 6px;
  cursor: pointer;
}
.sidebar .logout-btn:hover { background: rgba(255,255,255,.1); }

.main { flex: 1; padding: 28px 32px; max-width: 1100px; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.section-tag { color: var(--blue-mid); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }

/* ---------- Formularios ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 5px; color: var(--navy); }
.field input[type=text], .field input[type=number], .field input[type=password],
.field input[type=url], .field textarea, .field select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid #c6d3e0;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: .92rem;
}
.field textarea { min-height: 90px; resize: vertical; }
.field-row { display: flex; gap: 14px; }
.field-row > .field { flex: 1; }
.checkbox-field { display: flex; align-items: center; gap: 8px; font-size: .9rem; }

.btn {
  display: inline-block;
  background: var(--blue-mid);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: .9rem;
}
.btn:hover { background: var(--navy-deep); }
.btn.secondary { background: #fff; color: var(--blue-mid); border: 1px solid var(--blue-mid); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 6px 12px; font-size: .82rem; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }

.card-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(15,49,88,.06);
}

.alert { padding: 10px 14px; border-radius: 6px; font-size: .88rem; margin-bottom: 14px; }
.alert.error { background: #fdecea; color: var(--danger); border: 1px solid #f5c2c0; }
.alert.ok { background: #e9f7ee; color: var(--ok); border: 1px solid #bfe8cc; }

/* ---------- Tabs de secciones ---------- */
.tabs { display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.tabs button {
  background: #fff;
  border: 1px solid #c6d3e0;
  padding: 8px 14px;
  border-radius: 20px;
  font-size: .85rem;
  cursor: pointer;
  color: var(--navy);
}
.tabs button.active { background: var(--blue-mid); color: #fff; border-color: var(--blue-mid); }

/* ---------- Listado de items (posts / documentos) ---------- */
.item-list { display: flex; flex-direction: column; gap: 10px; }
.item-row {
  display: flex;
  gap: 14px;
  align-items: center;
  background: #fff;
  border: 1px solid #e2eaf2;
  border-radius: 8px;
  padding: 10px 14px;
}
.item-row img { width: 64px; height: 64px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.item-row .info { flex: 1; min-width: 0; }
.item-row .info .t { font-weight: 700; color: var(--navy-deep); font-size: .92rem; }
.item-row .info .d { color: var(--ink-soft); font-size: .82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-row .badge { font-size: .72rem; background: var(--blue-light); color: var(--blue-mid); padding: 3px 8px; border-radius: 10px; margin-right: 6px; white-space:nowrap; }
.item-row .badge.pending { background: #fdecea; color: var(--danger); }
.item-row .actions { display: flex; gap: 6px; flex-shrink: 0; }

.tree { padding-left: 0; }
.tree-node { border-left: 3px solid var(--blue-light); padding-left: 14px; margin-bottom: 14px; }
.tree-node .tree-title { font-weight: 700; color: var(--navy-deep); display:flex; align-items:center; gap:8px; margin-bottom:8px; }
.tree-node .tree-children { padding-left: 18px; }

.empty-state { color: var(--ink-soft); font-size: .9rem; padding: 20px 0; text-align: center; }
.hidden { display: none !important; }
.helptext { font-size: .78rem; color: var(--ink-soft); margin-top: 4px; }

@media (max-width: 800px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; }
  .main { padding: 20px; }
}