/* Licencias Cursos · backend */
:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1c2230;
  --muted: #6b7385;
  --border: #e2e5eb;
  --primary: #2f5bea;
  --primary-hover: #2449c7;
  --primary-text: #ffffff;
  --danger: #c93636;
  --danger-hover: #a92a2a;
  --success: #1f8a4c;
  --warning: #b7791f;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --b-activo-bg: #e3f5ea;   --b-activo-fg: #17693a;
  --b-caducado-bg: #fdeaea; --b-caducado-fg: #a52b2b;
  --b-completo-bg: #fff3dc; --b-completo-fg: #8a5a12;
  --b-inactivo-bg: #eceef2; --b-inactivo-fg: #555d6e;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --surface: #1b1f29;
    --text: #e6e8ee;
    --muted: #98a0b3;
    --border: #2c3240;
    --primary: #5b7ff5;
    --primary-hover: #7895f7;
    --danger: #e05a5a;
    --danger-hover: #ea7777;
    --shadow: none;
    --b-activo-bg: #173524;   --b-activo-fg: #7fd6a0;
    --b-caducado-bg: #3d1d1f; --b-caducado-fg: #f3a3a3;
    --b-completo-bg: #3a2c12; --b-completo-fg: #f0c674;
    --b-inactivo-bg: #2a2f3a; --b-inactivo-fg: #b3bac8;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--font);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 1rem; line-height: 1.25; }
h2 { font-size: 1.1rem; margin: 0 0 .9rem; }
code, .mono { font-family: var(--mono); font-size: .9em; }
code { background: var(--bg); padding: .1em .35em; border-radius: 4px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.strong { font-weight: 600; }
.nowrap { white-space: nowrap; }
.break { word-break: break-all; }
.pre { white-space: pre-wrap; }
.t-right { text-align: right; }
.t-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Topbar */
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.topbar-inner {
  max-width: 1200px; margin: 0 auto; padding: .6rem 1rem;
  display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap;
}
.brand { font-weight: 700; color: var(--text); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: .25rem; flex: 1; }
.nav a { color: var(--muted); padding: .4rem .7rem; border-radius: 8px; font-weight: 500; }
.nav a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
.nav a.is-active { color: var(--text); background: var(--bg); }
.userbox { display: flex; align-items: center; gap: .6rem; }
.userbox-name { color: var(--muted); font-size: .9rem; }
.userbox form { margin: 0; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.breadcrumb { font-size: .9rem; color: var(--muted); margin-bottom: .75rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.grid-wide-left { grid-template-columns: 2fr 1fr; align-items: start; }
.btn-row { display: flex; gap: .5rem; flex-wrap: wrap; }

/* Cards */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.25rem; margin-bottom: 1rem; min-width: 0;
}
.card-flush { padding: 0; overflow: hidden; }
.card-head { padding: 1rem 1.25rem .25rem; }
.card.narrow { max-width: 480px; margin-left: auto; margin-right: auto; }
.login-card { margin-top: 8vh; }
.empty { text-align: center; padding: 2.5rem 1rem; }
.empty-inline { padding: .5rem 1.25rem 1.25rem; color: var(--muted); margin: 0; }
.danger-zone { border-color: var(--danger); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  padding: .5rem .95rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit; font-weight: 500;
  cursor: pointer; text-decoration: none; white-space: nowrap; line-height: 1.3;
}
.btn:hover { background: var(--bg); text-decoration: none; }
.btn:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); }
.btn-danger:disabled { opacity: .45; cursor: not-allowed; }
.btn-danger-ghost { color: var(--danger); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: .3rem .65rem; font-size: .85rem; }
.btn-block { width: 100%; }
.btn.is-copied { color: var(--success); border-color: var(--success); }
form.inline { display: inline; margin: 0; }

/* Forms */
.form { display: grid; gap: 1rem; }
.field { display: grid; gap: .35rem; margin: 0 0 .9rem; }
.form .field { margin: 0; }
.field > span { font-weight: 600; font-size: .9rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=datetime-local] {
  width: 100%; padding: .55rem .7rem; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; min-width: 0;
}
input[readonly] { background: var(--bg); }
.has-error input { border-color: var(--danger); }
.field-error { color: var(--danger); font-size: .85rem; margin: 0; }
.hint { color: var(--muted); font-size: .82rem; }
.check { display: flex; gap: .55rem; align-items: flex-start; cursor: pointer; }
.check input { margin-top: .25rem; width: 1rem; height: 1rem; }
.form-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.copy-group { display: flex; gap: .5rem; }
.copy-group input { flex: 1; }

/* Mostrar/ocultar contraseña */
.pw-wrap { position: relative; display: block; }
.pw-wrap input { padding-right: 2.75rem; }
.pw-toggle {
  position: absolute; top: 50%; right: .3rem; transform: translateY(-50%);
  width: 2.1rem; height: 2.1rem; display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: transparent; color: var(--muted); border-radius: 6px; cursor: pointer; padding: 0;
}
.pw-toggle:hover { color: var(--text); background: var(--bg); }
.pw-toggle:focus-visible { outline: 2px solid var(--primary); outline-offset: 0; }
.pw-toggle svg { width: 1.2rem; height: 1.2rem; }
input::-ms-reveal { display: none; }

/* Alerts */
.alert { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; border: 1px solid; }
.alert-success { background: var(--b-activo-bg); color: var(--b-activo-fg); border-color: transparent; }
.alert-error { background: var(--b-caducado-bg); color: var(--b-caducado-fg); border-color: transparent; }
.alert-warning { background: var(--b-completo-bg); color: var(--b-completo-fg); border-color: transparent; }

/* Badges / meter */
.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; vertical-align: middle; }
.badge-activo { background: var(--b-activo-bg); color: var(--b-activo-fg); }
.badge-caducado { background: var(--b-caducado-bg); color: var(--b-caducado-fg); }
.badge-completo { background: var(--b-completo-bg); color: var(--b-completo-fg); }
.badge-inactivo { background: var(--b-inactivo-bg); color: var(--b-inactivo-fg); }

.usage { font-variant-numeric: tabular-nums; }
.meter { display: block; height: 6px; background: var(--bg); border-radius: 999px; overflow: hidden; margin-top: .3rem; max-width: 160px; }
.meter > span { display: block; height: 100%; background: var(--primary); border-radius: 999px; }
.meter .meter-completo { background: var(--warning); }
.meter .meter-caducado { background: var(--danger); }
.meter .meter-inactivo { background: var(--muted); }
.meter-lg { height: 10px; max-width: none; margin: .25rem 0 1rem; }
.big-counter { font-size: 2.2rem; margin: 0; font-variant-numeric: tabular-nums; }
.big-counter span { color: var(--muted); font-size: 1.3rem; }
.meta { display: grid; grid-template-columns: auto 1fr; gap: .3rem 1rem; margin: 0; font-size: .92rem; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; }

/* Búsqueda */
.filters { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.filters input[type=search] { flex: 1 1 260px; }
.filters select, .filters input[type=search] {
  padding: .5rem .7rem; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; min-width: 0;
}
.client-tag {
  font-size: .8rem; font-weight: 500; color: var(--muted); background: var(--bg);
  border: 1px solid var(--border); border-radius: 999px; padding: .1rem .6rem; vertical-align: middle;
}
.client-tag:hover { color: var(--text); text-decoration: none; }
.link-plain { color: inherit; }
.link-plain:hover { color: var(--primary); }
mark { background: var(--b-completo-bg); color: inherit; border-radius: 3px; padding: 0 .1em; }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: .7rem 1.25rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; background: var(--surface); }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--bg); }
.table .actions { white-space: nowrap; }
.table th.t-right, .table td.t-right { text-align: right; }
.t-center { text-align: center; }

/* Responsive */
@media (max-width: 860px) {
  .grid-2, .grid-wide-left { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .container { padding: 1rem .75rem 2rem; }
  .topbar-inner { gap: .5rem 1rem; }
  .nav { order: 3; flex-basis: 100%; }
  .table-responsive thead { display: none; }
  .table-responsive, .table-responsive tbody, .table-responsive tr, .table-responsive td { display: block; width: 100%; }
  .table-responsive tr { padding: .75rem 1rem; border-bottom: 1px solid var(--border); }
  .table-responsive tbody tr:last-child { border-bottom: 0; }
  .table-responsive td { border: 0; padding: .2rem 0; display: grid; grid-template-columns: 8.5rem 1fr; gap: .5rem; }
  .table-responsive td[data-label]::before { content: attr(data-label); color: var(--muted); font-size: .82rem; }
  .table-responsive td:not([data-label]) { display: block; }
  .table-responsive td.t-right { text-align: left; padding-top: .5rem; }
  .copy-group { flex-direction: column; }
  .page-head h1 { font-size: 1.3rem; }
}