:root {
  --navy: #1a2744;
  --navy-2: #243456;
  --amber: #f59e0b;
  --green: #10b981;
  --red: #ef4444;
  --orange: #f97316;
  --bg: #f4f5f7;
  --card: #ffffff;
  --line: #e2e6ec;
  --text: #1f2937;
  --muted: #6b7280;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--red); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; background: var(--navy); }
.login-card {
  background: var(--card); padding: 32px; border-radius: 12px; width: 320px;
  display: flex; flex-direction: column; gap: 14px; box-shadow: 0 10px 40px rgba(0,0,0,.3);
}
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input { padding: 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 15px; }
.brand { color: var(--navy); font-weight: 800; letter-spacing: .5px; margin: 0; }
.login-card .brand { font-size: 28px; text-align: center; }

/* App shell */
.app { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--navy); color: #cdd5e4; display: flex; flex-direction: column;
  padding: 18px 12px; gap: 6px;
}
.brand-row { padding: 8px 10px 16px; }
.sidebar .brand { color: #fff; font-size: 22px; }
.sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  text-align: left; background: transparent; border: 0; color: #cdd5e4;
  padding: 11px 12px; border-radius: 8px; cursor: pointer; font-size: 15px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-item:hover { background: var(--navy-2); color: #fff; }
.nav-item.active { background: var(--navy-2); color: #fff; font-weight: 600; }
.sidebar-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px; border-top: 1px solid var(--navy-2); }
.main { padding: 28px 32px; overflow: auto; }
.main h2 { margin: 0 0 18px; color: var(--navy); }

/* Buttons */
.btn { border: 0; border-radius: 8px; padding: 9px 14px; cursor: pointer; font-size: 14px; font-weight: 600; }
.btn.primary { background: var(--navy); color: #fff; }
.btn.ghost { background: transparent; color: #cdd5e4; border: 1px solid var(--navy-2); }
.btn.ok { background: var(--green); color: #fff; }
.btn.danger { background: var(--red); color: #fff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Cards / grid */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.stat .n { font-size: 28px; font-weight: 800; color: var(--navy); }
.stat .l { color: var(--muted); font-size: 13px; }
.stat.alert .n { color: var(--red); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 14px; }
.card h3 { margin: 0 0 6px; color: var(--navy); font-size: 16px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }

/* Badges / chips */
.badge { background: var(--amber); color: #1a2744; border-radius: 999px; padding: 1px 8px; font-size: 12px; font-weight: 700; }
.chip { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.chip.rojo { background: #fde2e2; color: var(--red); }
.chip.naranja { background: #ffedd5; color: var(--orange); }
.chip.verde { background: #d1fae5; color: var(--green); }
.chip.gray { background: #eef1f5; color: var(--muted); }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { background: #fafbfc; color: var(--muted); font-weight: 600; }
tr:hover td { background: #fafbfc; cursor: default; }
tr.clickable:hover td { cursor: pointer; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 10px 0 10px 18px; border-left: 2px solid var(--line); position: relative; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 14px; width: 10px; height: 10px; border-radius: 50%; background: var(--navy); }
.timeline .t { font-size: 12px; color: var(--muted); }

textarea, select, input.inline { border: 1px solid var(--line); border-radius: 8px; padding: 8px; font-size: 14px; font-family: inherit; }
textarea { width: 100%; min-height: 60px; }

@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .main { padding: 18px; }
}