/* Tokens de diseño (spec §11.3). El color codifica estado de licencia, no decora. */
:root {
  --ink: #14181f;
  --paper: #fbfaf7;
  --line: #e4e1da;
  --muted: #6b7280;
  --active: #1f7a5a; /* verde señal: reservado a "licencia activa" */
  --warn: #b4791f;   /* ámbar: por caducar */
  --dead: #9aa0a6;   /* gris: revocada/caducada */
  --card: #ffffff;
  --radius: 12px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Public Sans", "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand .dot { width: 12px; height: 12px; border-radius: 3px; background: var(--active); }
.brand small { color: var(--muted); font-weight: 500; }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
}
.nav button.is-active { background: var(--ink); color: #fff; }

main { max-width: 1120px; margin: 0 auto; padding: 24px; }
.view { display: none; }
.view.is-visible { display: block; }

.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 24px; }
.metric { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.metric b { font-size: 1.8rem; display: block; }
.metric span { color: var(--muted); font-size: 0.85rem; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.panel h2 { margin: 0 0 4px; font-size: 1.1rem; }
.panel .hint { color: var(--muted); font-size: 0.88rem; margin: 0 0 16px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

label { display: block; font-size: 0.85rem; font-weight: 600; margin: 10px 0 4px; }
input, select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--active); outline-offset: 1px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.check input { width: auto; }

button.primary {
  margin-top: 14px;
  background: var(--ink);
  color: #fff;
  border: 0;
  padding: 10px 16px;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button.primary:hover { background: #000; }
button.ghost { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px; cursor: pointer; font: inherit; }
button.danger { color: #a12; border-color: #e7c9cf; }

.msg { font-size: 0.85rem; margin-top: 10px; min-height: 1em; color: var(--active); }
.msg.is-error { color: #a12; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
code, .mono { font-family: var(--mono); font-size: 0.85em; }

.chip { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; border: 1px solid; }
.chip.active { color: var(--active); border-color: var(--active); background: rgba(31,122,90,0.08); }
.chip.warn { color: var(--warn); border-color: var(--warn); background: rgba(180,121,31,0.08); }
.chip.scheduled { color: var(--warn); border-color: var(--warn); background: rgba(180,121,31,0.05); }
.chip.dead, .chip.revoked, .chip.expired, .chip.exhausted { color: var(--dead); border-color: var(--dead); background: rgba(154,160,166,0.1); }

.seatmeter { display: flex; align-items: center; gap: 8px; min-width: 120px; }
.seatmeter .bar { flex: 1; height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; }
.seatmeter .bar i { display: block; height: 100%; background: var(--active); }
.seatmeter small { color: var(--muted); font-family: var(--mono); white-space: nowrap; }

.app-alert { background: #fdecec; color: #a12; padding: 12px 16px; text-align: center; }

/* --- Portal cliente (§11) --- */
.catalog { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.course-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.course-card .code { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }
.course-card h3 { margin: 0; font-size: 1.05rem; }
.course-card .area { color: var(--muted); font-size: 0.85rem; }
.course-card .foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-top: 12px; }
.badge-std { font-family: var(--mono); font-size: 0.72rem; border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; color: var(--muted); }
.searchbar { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.searchbar input { max-width: 320px; }
.empty { text-align: center; color: var(--muted); padding: 48px 16px; }