/* ── Reset & base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #0f1117;
  --surface:  #1a1d27;
  --border:   #2a2d3e;
  --accent:   #4f8ef7;
  --green:    #3ecf8e;
  --yellow:   #f5c542;
  --red:      #f06060;
  --text:     #e0e2f0;
  --muted:    #6b7280;
  --radius:   10px;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}

/* ── Layout ──────────────────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

header h1 { font-size: 1.2rem; font-weight: 700; letter-spacing: .3px; }
header h1 span { color: var(--accent); }

#sse-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--muted);
  margin-left: auto;
  transition: background .3s;
}
#sse-dot.live { background: var(--green); box-shadow: 0 0 6px var(--green); }

main { max-width: 1400px; margin: 0 auto; padding: 28px 24px; }

/* ── Stat cards ──────────────────────────────────────────────── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.stat-card .label { font-size: 11px; text-transform: uppercase;
                    letter-spacing: .8px; color: var(--muted); }
.stat-card .value { font-size: 2rem; font-weight: 700; margin-top: 6px; }

/* ── Section heading ──────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.section-header h2 { font-size: .95rem; font-weight: 600; color: var(--muted);
                     text-transform: uppercase; letter-spacing: .8px; }

button.refresh-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); padding: 4px 12px; cursor: pointer; font-size: 12px;
  transition: border-color .2s;
}
button.refresh-btn:hover { border-color: var(--accent); }

/* ── Session table ────────────────────────────────────────────── */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; min-width: 900px; }
thead th {
  background: rgba(255,255,255,.03);
  padding: 10px 12px;
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background .15s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(79,142,247,.06); }
tbody td { padding: 12px 12px; vertical-align: middle; }

/* ── State badge ──────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-active  { background: rgba(62,207,142,.15); color: var(--green); }
.badge-waiting { background: rgba(245,197,66,.15);  color: var(--yellow); }
.badge-closed  { background: rgba(240,96,96,.15);   color: var(--red); }

/* ── Client presence dots ─────────────────────────────────────── */
.presence { display: flex; gap: 6px; align-items: center; }
.presence-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border);
}
.presence-dot.on  { background: var(--green); }
.presence-dot.off { background: var(--muted); }
.presence-label { font-size: 11px; color: var(--muted); }

/* ── Empty state ──────────────────────────────────────────────── */
.empty-row td {
  text-align: center;
  padding: 40px 0;
  color: var(--muted);
  font-size: 13px;
}


/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 680px) {
  header { padding: 14px 16px; }
  main   { padding: 18px 12px; }
  .stat-row { grid-template-columns: 1fr 1fr; }
}

/* ── Settings panel ───────────────────────────────────────────── */
.settings-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.settings-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.settings-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--muted);
  margin-bottom: 16px;
}

.settings-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.settings-form input {
  flex: 1;
  min-width: 100px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 11px;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.settings-form input:focus { border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: #fff;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s;
}
.btn-primary:hover { opacity: .85; }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; }

.btn-danger {
  background: var(--red);
  border: none;
  border-radius: 6px;
  color: #fff;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s;
}
.btn-danger:hover    { opacity: .85; }
.btn-danger:disabled { opacity: .4; cursor: not-allowed; }

.settings-msg {
  margin-top: 10px;
  font-size: 12px;
  min-height: 16px;
}
.settings-msg.ok  { color: var(--green); }
.settings-msg.err { color: var(--red); }

/* ── User list ────────────────────────────────────────────────── */
.user-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.user-list-empty {
  color: var(--muted);
  font-size: 13px;
}

.user-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255,255,255,.03);
  border-radius: 6px;
  font-size: 13px;
}

.user-list li .username { font-family: monospace; color: var(--text); }

.btn-delete {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--red);
  padding: 3px 10px;
  font-size: 11px;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.btn-delete:hover { border-color: var(--red); background: rgba(240,96,96,.1); }

/* ── Role select ──────────────────────────────────────────────── */
.role-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 13px;
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
}
.role-select:focus { border-color: var(--accent); }

/* ── Config panel ─────────────────────────────────────────────── */
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
}

.config-item .config-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  margin-bottom: 3px;
}

.config-item .config-value {
  font-family: monospace;
  font-size: 14px;
  color: var(--text);
}

.config-row { margin-bottom: 4px; }
.config-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  margin-bottom: 6px;
}

.config-edit-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.config-input {
  width: 160px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 11px;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.config-input:focus { border-color: var(--accent); }

.config-hint {
  margin-top: 8px;
  font-size: 11px;
  color: var(--muted);
}
.config-hint code {
  font-family: monospace;
  background: rgba(255,255,255,.06);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ── Tab bar ──────────────────────────────────────────────────── */
#tabbar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 0 32px;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: color .2s, border-color .2s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 680px) {
  #tabbar { padding: 0 12px; }
}

/* ── Login overlay ────────────────────────────────────────────── */
#login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
#login-overlay.hidden { display: none; }

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card h2 {
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
}
.login-card h2 span { color: var(--accent); }
.login-subtitle { color: var(--muted); font-size: 12px; text-align: center; }
.login-card input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 12px;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.login-card input:focus { border-color: var(--accent); }
.setup-notice { color: var(--yellow); }

/* ── Logout button ────────────────────────────────────────────── */
.btn-logout {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  padding: 5px 13px;
  font-size: 12px;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* ── User role badge ──────────────────────────────────────────── */
.role-badge {
  font-size: 10px;
  padding: 1px 7px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.role-badge.admin { background: rgba(79,142,247,.15); color: var(--accent); }
.role-badge.user  { background: rgba(107,114,128,.15); color: var(--muted); }