:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --success-dark: #15803d;
  --danger: #dc2626;
  --warning: #d97706;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .1), 0 1px 2px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

.boot { padding: 4rem; text-align: center; color: var(--muted); }

/* ---------------------------------------------------------------- Login --- */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: linear-gradient(160deg, #0f172a, #1e3a8a);
}
.login-card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
}
.login-card h1 { margin: 0 0 .25rem; font-size: 1.6rem; }
.login-card p.sub { margin: 0 0 1.75rem; color: var(--muted); font-size: .9rem; }

/* --------------------------------------------------------------- Layout --- */
.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  background: var(--bg);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.25rem;
  height: 56px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .brand { font-weight: 700; font-size: 1.05rem; letter-spacing: .2px; }
.topbar nav { display: flex; gap: .25rem; margin-left: 1rem; }
.topbar nav button {
  background: transparent;
  border: 0;
  color: #cbd5e1;
  padding: .5rem .85rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: .92rem;
  font-family: inherit;
}
.topbar nav button:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.topbar nav button.active { background: var(--primary); color: #fff; }
.topbar .spacer { flex: 1; }
.topbar .who { font-size: .85rem; color: #cbd5e1; }
.topbar .who strong { color: #fff; display: block; font-size: .9rem; }
.role-badge {
  display: inline-block;
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: .15rem .45rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, .15);
  color: #e2e8f0;
}

main { flex: 1; padding: 1.5rem; max-width: 1200px; width: 100%; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* ---------------------------------------------------------------- Cards --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card h2 { margin: 0 0 1rem; font-size: 1.05rem; }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 900px) { .grid-2 { grid-template-columns: 1fr 1fr; } }

/* --------------------------------------------------------------- Reloj ---- */
.clock-card { text-align: center; }
.clock-time {
  font-size: 3.2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
  margin: .25rem 0;
}
.clock-date { color: var(--muted); margin-bottom: 1.25rem; }

.state-open {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  padding: 1.25rem;
}
.state-closed { color: var(--muted); padding: 1.25rem 0; }
.state-open .ot { font-size: 1.5rem; font-weight: 700; color: var(--success-dark); }
.state-open .meta { color: var(--muted); font-size: .9rem; margin: .35rem 0 1rem; }

.elapsed {
  font-size: 2rem;
  font-weight: 700;
  color: var(--success-dark);
  font-variant-numeric: tabular-nums;
  margin: .5rem 0;
}

/* --------------------------------------------------------------- Forms ---- */
label { display: block; font-size: .82rem; font-weight: 600; color: #334155; margin-bottom: .3rem; }
input, select, textarea {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: .95rem;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(37, 99, 235, .35);
  border-color: var(--primary);
}
.field { margin-bottom: .9rem; }
.field-row { display: grid; gap: .9rem; grid-template-columns: 1fr 1fr; }
.hint { font-size: .78rem; color: var(--muted); margin-top: .3rem; }

button.btn {
  padding: .65rem 1.1rem;
  border: 0;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  width: 100%;
}
button.btn:hover { background: var(--primary-dark); }
button.btn:disabled { opacity: .6; cursor: not-allowed; }
button.btn-success { background: var(--success); }
button.btn-success:hover { background: var(--success-dark); }
button.btn-danger { background: var(--danger); }
button.btn-danger:hover { background: #b91c1c; }
button.btn-ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid #cbd5e1;
}
button.btn-ghost:hover { background: var(--surface-alt); }
button.btn-sm { padding: .35rem .6rem; font-size: .82rem; width: auto; }

button.tab-btn { width: auto; }

/* -------------------------------------------------------------- Filtros --- */
.filters {
  display: grid;
  gap: .9rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: end;
}
.actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }
.actions button { width: auto; }

/* --------------------------------------------------------------- Tabla ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .6rem .65rem; text-align: left; border-bottom: 1px solid var(--border); }
th {
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--muted);
  background: var(--surface-alt);
  white-space: nowrap;
}
tbody tr:hover { background: var(--surface-alt); }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ot-tag {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  padding: .15rem .5rem;
  border-radius: 5px;
  font-weight: 700;
  font-size: .82rem;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
}
.badge {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-open { background: #dcfce7; color: #166534; }
.badge-closed { background: #f1f5f9; color: #475569; }
.empty { text-align: center; padding: 2.5rem 1rem; color: var(--muted); }

/* ------------------------------------------------------------- Resumen ---- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.stat .label { font-size: .76rem; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
.stat .value { font-size: 1.7rem; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: .2rem; }
.stat.accent { border-left: 4px solid var(--primary); }
.stat.success { border-left: 4px solid var(--success); }

/* -------------------------------------------------------------- Dialog ---- */
dialog {
  border: 0;
  border-radius: 14px;
  padding: 0;
  width: 100%;
  max-width: 460px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, .35);
}
dialog::backdrop { background: rgba(15, 23, 42, .55); }
.dialog-head { padding: 1.25rem 1.5rem 0; }
.dialog-head h3 { margin: 0 0 .25rem; }
.dialog-body { padding: 1.25rem 1.5rem; }
.dialog-foot {
  padding: 0 1.5rem 1.5rem;
  display: flex;
  gap: .6rem;
  justify-content: flex-end;
}
.dialog-foot button { width: auto; }

/* --------------------------------------------------------------- Toast ---- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(150%);
  background: var(--bg);
  color: #fff;
  padding: .75rem 1.25rem;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, .3);
  z-index: 100;
  transition: transform .25s ease;
  font-size: .92rem;
  max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }

.inline-error { color: var(--danger); font-size: .85rem; margin-top: .5rem; min-height: 1.2em; }

.pager { display: flex; gap: .5rem; align-items: center; justify-content: center; margin-top: 1rem; }
.pager button { width: auto; }
.pager span { color: var(--muted); font-size: .88rem; }

.spinner {
  display: inline-block;
  width: 1em; height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: -.15em;
}
@keyframes spin { to { transform: rotate(360deg); } }

.note { color: var(--muted); font-size: .85rem; }

@media (max-width: 640px) {
  .topbar { height: auto; flex-wrap: wrap; padding: .6rem .9rem; }
  .topbar nav { margin-left: 0; order: 3; width: 100%; overflow-x: auto; }
  main { padding: 1rem; }
  .field-row { grid-template-columns: 1fr; }
  .clock-time { font-size: 2.4rem; }
}