:root {
  --navy: #0e2a47;
  --navy-2: #143a61;
  --accent: #1d6fd8;
  --accent-dark: #155bb5;
  --bg: #f2f4f8;
  --card: #ffffff;
  --text: #1c2733;
  --muted: #64748b;
  --border: #dde3ec;
  --danger: #c0392b;
  --ok: #1e8e5a;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(15, 30, 50, 0.08), 0 4px 16px rgba(15, 30, 50, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-weight: 400; }

/* ---------- buttons & forms ---------- */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover { background: #f6f8fb; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-danger { color: var(--danger); border-color: #ecc8c2; }
.btn-danger:hover { background: #fdf3f1; }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 6px; }
button:disabled { opacity: 0.6; cursor: not-allowed; }

label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 5px; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(29, 111, 216, 0.35);
  border-color: var(--accent);
}
.form-error {
  margin-top: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  background: #fdf0ee;
  border: 1px solid #f0c9c2;
  color: var(--danger);
  font-size: 13.5px;
}
.form-ok {
  margin-top: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  background: #edf8f2;
  border: 1px solid #bfe3d0;
  color: var(--ok);
  font-size: 13.5px;
}

/* ---------- login ---------- */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, #1d5a94 100%);
  padding: 20px;
}
.login-card {
  width: 380px;
  max-width: 100%;
  background: var(--card);
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  padding: 34px 32px 30px;
}
.login-brand { display: flex; align-items: center; gap: 14px; }
.login-brand h1 { font-size: 20px; margin: 0; }
.login-sub { margin: 2px 0 0; color: var(--muted); font-size: 13.5px; }
.login-card form { margin-top: 10px; }
.login-card .btn-block { margin-top: 20px; padding: 11px; font-size: 15px; }

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #6db3ff);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.5px;
  flex: none;
}

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

.topbar {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--navy);
  color: #fff;
  padding: 0 18px;
  height: 56px;
  flex: none;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .brand-mark { width: 32px; height: 32px; border-radius: 8px; font-size: 13px; }
.brand-name { font-weight: 700; font-size: 15.5px; white-space: nowrap; }

/* Horizontal menu bar - shared by the viewer's main tabs and the admin panel nav
   so the two always look identical. */
.main-tabs, .admin-nav {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex: none;
}
.main-tabs button, .admin-nav button {
  text-align: left;
  border: none;
  background: none;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.main-tabs button:hover, .admin-nav button:hover { background: #f2f5fa; }
.main-tabs button.active, .admin-nav button.active {
  background: #e8f0fc;
  color: var(--accent-dark);
  font-weight: 600;
}

.user-menu { position: relative; margin-left: auto; }
.user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13.5px;
  cursor: pointer;
}
.user-btn:hover { background: rgba(255, 255, 255, 0.18); }
.chev { font-size: 10px; opacity: 0.8; }
.dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 190px;
  padding: 6px;
  z-index: 50;
}
.dropdown a, .dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: none;
  background: none;
  border-radius: 7px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}
.dropdown a:hover, .dropdown button:hover { background: #f2f5fa; }

.sub-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 18px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex: none;
}
.sub-tabs button {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.sub-tabs button:hover { border-color: var(--accent); color: var(--accent); }
.sub-tabs button.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.stage { flex: 1; position: relative; background: var(--bg); }
.stage iframe { width: 100%; height: 100%; border: 0; display: block; }
.stage-msg, .loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  gap: 10px;
}
.spinner {
  width: 34px;
  height: 34px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 35, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  width: 440px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 26px 28px;
}
.modal h2 { margin: 0 0 4px; font-size: 18px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 6px; }
.checks label { display: flex; align-items: center; gap: 7px; font-weight: 500; margin: 0; font-size: 14px; }

/* ---------- admin ---------- */
.admin-layout { display: flex; flex-direction: column; flex: 1; min-height: 0; }
/* .admin-nav is styled with .main-tabs above - horizontal at every width. */

.admin-content { flex: 1; overflow-y: auto; padding: 26px 30px; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}
.section-head h2 { margin: 0; font-size: 19px; }
.section-head p { margin: 4px 0 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card + .card { margin-top: 18px; }
.card-pad { padding: 18px 20px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--muted); background: #fafbfd; }
tr:last-child td { border-bottom: none; }
td .btn { margin-right: 6px; }

.pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #eef1f6;
  color: var(--muted);
  margin: 1px 3px 1px 0;
}
.pill.on { background: #e3f2ea; color: var(--ok); }
.pill.off { background: #fdeeec; color: var(--danger); }
.pill.adm { background: #e8f0fc; color: var(--accent-dark); }

.perm-table td, .perm-table th { text-align: center; }
.perm-table td:first-child, .perm-table th:first-child { text-align: left; }
.perm-table input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--accent); }
.perm-main-row td {
  background: #f6f8fb;
  font-weight: 700;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--navy);
  color: #fff;
  padding: 11px 20px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  font-size: 14px;
  z-index: 200;
}
.toast.err { background: var(--danger); }

.move-group { display: inline-flex; gap: 2px; margin-right: 8px; vertical-align: middle; }
.move-group .btn { padding: 4px 9px; line-height: 1.2; font-size: 12px; }

.subtab-row td:first-child { padding-left: 34px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

@media (max-width: 760px) {
  .topbar { gap: 10px; padding: 0 10px; }
  .brand-name { display: none; }
  .main-tabs, .admin-nav { padding: 8px 10px; }
  .admin-content { padding: 16px; }
}

.pw-box { font-size: 17px; background: #f2f5fa; padding: 12px; border-radius: 8px; text-align: center; user-select: all; }
.hint { margin: 4px 0 0; font-size: 12.5px; }
.mt14 { margin-top: 14px; }