:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --border: #e3e6ea;
  --primary: #1d4ed8;
  --primary-ink: #ffffff;
  --danger: #b91c1c;
  --radius: 10px;
  --fc-border-color: #e3e6ea;
  --fc-today-bg-color: #eef4ff;
  --fc-now-indicator-color: #dc2626;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2 { margin: 0 0 .5rem; line-height: 1.2; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.05rem; }
a { color: var(--primary); }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.error { color: var(--danger); min-height: 1.2em; margin: .25rem 0 0; }
.spacer { flex: 1; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  padding: .5rem .9rem; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--text); font: inherit; cursor: pointer;
  text-decoration: none; white-space: nowrap;
}
.btn:hover { border-color: #c5cad1; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); border-color: #f1c4c4; }
.btn:disabled { opacity: .6; cursor: default; }
.link { background: none; border: 0; padding: 0; color: var(--primary); font: inherit; cursor: pointer; }
.link.danger { color: var(--danger); }

/* Formularios */
.form { display: flex; flex-direction: column; gap: .8rem; }
.form label { display: flex; flex-direction: column; gap: .3rem; font-weight: 500; }
input[type=text], input:not([type]), input[type=email], input[type=tel], input[type=password],
input[type=date], input[type=time], input[type=search] {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 8px;
  font: inherit; background: #fff; color: inherit;
}
input:focus { outline: 2px solid #bfd3ff; border-color: var(--primary); }
.form label.check { flex-direction: row; align-items: flex-start; gap: .5rem; font-weight: 400; }
.check input { margin-top: .2rem; }
.grid2, .grid3 { display: grid; gap: .6rem; }
.grid2 { grid-template-columns: 1fr 1fr; }
.grid3 { grid-template-columns: 1.4fr 1fr 1fr; }
details summary { cursor: pointer; color: var(--primary); margin-bottom: .5rem; }
details label { margin-bottom: .6rem; }

/* Login */
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.6rem;
}
.tabs { display: flex; gap: .25rem; background: var(--bg); padding: .25rem; border-radius: 9px; margin: 1rem 0; }
.tab { flex: 1; border: 0; background: none; padding: .5rem; border-radius: 7px; font: inherit; cursor: pointer; color: var(--muted); }
.tab.active { background: var(--card); color: var(--text); font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,.08); }

/* Estructura */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem 16px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.topbar-right { display: flex; align-items: center; gap: .5rem; }
.page { max-width: 1200px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.card.pad { padding: 1rem; }
#calendar { padding: .75rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; }
.help { margin: .6rem 0 .8rem; font-size: .9rem; }

/* Panel admin */
.admin-layout { display: grid; grid-template-columns: 330px 1fr; gap: 16px; padding: 16px; max-width: 1500px; margin: 0 auto; }
.sidebar { display: flex; flex-direction: column; gap: 16px; }
.admin-main { min-width: 0; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.badge { background: var(--bg); border-radius: 99px; padding: 0 .5rem; font-size: .8rem; color: var(--muted); }
.invite { display: flex; gap: .4rem; }
.stack { display: flex; flex-direction: column; gap: .5rem; }
#search { margin: .5rem 0; }
.workers { list-style: none; margin: 0; padding: 0; max-height: 55vh; overflow: auto; }
.worker { padding: .6rem 0; border-top: 1px solid var(--border); }
.worker:first-child { border-top: 0; }
.worker-head { display: flex; align-items: center; gap: .45rem; cursor: pointer; }
.worker-contact, .worker-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem .75rem; font-size: .85rem; padding-left: 1.6rem; margin-top: .2rem; }
.worker-contact a { overflow-wrap: anywhere; }
.dot { width: 11px; height: 11px; border-radius: 50%; flex: none; display: inline-block; }
#whoPanel { margin-bottom: 12px; }
.who { list-style: none; margin: 0; padding: 0; }
.who li { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .6rem; padding: .45rem 0; border-top: 1px solid var(--border); }
.who li:first-child { border-top: 0; }

/* Diálogos */
dialog {
  border: 0; border-radius: 14px; padding: 1.4rem; width: min(480px, calc(100vw - 32px));
  box-shadow: 0 20px 50px rgba(0,0,0,.25); color: var(--text);
}
dialog::backdrop { background: rgba(15, 23, 42, .45); }
.dialog-actions { display: flex; gap: .5rem; margin-top: .4rem; }

/* Avisos */
#toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: .4rem; z-index: 100; }
.toast { background: #111827; color: #fff; padding: .6rem 1rem; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.2); }
.toast.error { background: var(--danger); }

/* FullCalendar */
.fc .fc-toolbar-title { font-size: 1.15rem; text-transform: capitalize; }
.fc .fc-button { padding: .35rem .6rem; font-size: .85rem; }
.fc .fc-button-primary { background: var(--card); color: var(--text); border-color: var(--border); }
.fc .fc-button-primary:hover { background: var(--bg); color: var(--text); border-color: #c5cad1; }
.fc .fc-button-primary:not(:disabled).fc-button-active,
.fc .fc-button-primary:not(:disabled):active { background: var(--primary); border-color: var(--primary); color: #fff; }
.fc .fc-button-primary:disabled { background: var(--bg); color: var(--muted); border-color: var(--border); }
.fc-event { cursor: pointer; }

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-main { order: -1; }
  .workers { max-height: none; }
}
@media (max-width: 600px) {
  .grid3 { grid-template-columns: 1fr 1fr; }
  .grid3 label:first-child { grid-column: 1 / -1; }
  .topbar { flex-wrap: wrap; }
  #userName { display: none; }
  #calendar { padding: .4rem; }
  .fc .fc-toolbar { flex-wrap: wrap; gap: .4rem; }
  .fc .fc-toolbar-title { font-size: 1rem; }
}

/* Campos obligatorios */
.req { color: var(--danger); font-weight: 600; }

/* Últimos cambios (panel responsable) */
.live { font-size: .8rem; color: #16a34a; white-space: nowrap; }
.live.off { color: var(--muted); }
.activity { list-style: none; margin: .5rem 0 .75rem; padding: 0; max-height: 260px; overflow: auto; font-size: .88rem; }
.activity li { display: flex; flex-direction: column; gap: .1rem; padding: .45rem .4rem; border-top: 1px solid var(--border); border-radius: 6px; }
.activity li:first-child { border-top: 0; }
.activity .when { font-size: .78rem; color: var(--muted); text-transform: capitalize; }
.activity li.fresh { animation: fresh 3s ease-out; }
@keyframes fresh { from { background: #fff7cc; } to { background: transparent; } }