*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f11;
  --bg2: #17171a;
  --bg3: #1e1e22;
  --border: #2a2a30;
  --border2: #38383f;
  --text: #f0f0f0;
  --text2: #888891;
  --text3: #55555e;
  --accent: #7c6cfc;
  --accent2: #5d4ef0;
  --green: #34d399;
  --green-dim: #1a3d31;
  --amber: #fbbf24;
  --amber-dim: #3a2d0f;
  --red: #f87171;
  --red-dim: #3a1a1a;
  --radius: 10px;
  --radius-sm: 6px;
  --font: 'DM Sans', sans-serif;
  --mono: 'DM Mono', monospace;
}

html, body { height: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ── */
.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow-y: auto;
}

.sidebar-header {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo svg { color: var(--accent); }

.sidebar-nav {
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: none;
  background: none;
  color: var(--text2);
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 400;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s, color 0.12s;
  width: 100%;
}

.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: rgba(124,108,252,0.12); color: var(--accent); font-weight: 500; }
.nav-item.active svg { color: var(--accent); }

.sidebar-members {
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.members-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  font-weight: 500;
  margin-bottom: 10px;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
}

.avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-name { font-size: 12.5px; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-loc { font-size: 11px; color: var(--text3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Main ── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.topbar-right { display: flex; align-items: center; gap: 16px; }

.live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--green);
  background: var(--green-dim);
  padding: 4px 10px;
  border-radius: 99px;
}

.live-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.topbar-time { font-family: var(--mono); font-size: 12px; color: var(--text3); }

/* ── Views ── */
.view { flex: 1; overflow-y: auto; padding: 28px; }
.hidden { display: none !important; }

.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  font-weight: 500;
  margin-bottom: 14px;
}

/* ── Stats ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.stat-label { font-size: 11.5px; color: var(--text2); margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 600; letter-spacing: -0.03em; color: var(--text); }
.stat-value.accent { color: var(--accent); }

/* ── Floor grid ── */
.floor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.room-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  cursor: default;
  transition: border-color 0.15s;
}

.room-card.occupied { border-color: rgba(124,108,252,0.35); }

.room-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.room-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.room-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 99px;
}

.room-badge.empty { background: var(--bg3); color: var(--text3); }
.room-badge.has-1 { background: rgba(52,211,153,0.12); color: var(--green); }
.room-badge.has-many { background: rgba(124,108,252,0.12); color: var(--accent); }

.room-name { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 10px; letter-spacing: -0.01em; }

.room-avatars { display: flex; gap: 5px; flex-wrap: wrap; min-height: 28px; align-items: center; }
.room-empty-msg { font-size: 12px; color: var(--text3); }

/* ── Check-in view ── */
.form-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  max-width: 480px;
}

.form-card-title { font-size: 15px; font-weight: 600; margin-bottom: 4px; letter-spacing: -0.01em; }
.form-card-sub { font-size: 13px; color: var(--text2); margin-bottom: 22px; line-height: 1.6; }

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 500; color: var(--text2); margin-bottom: 7px; letter-spacing: 0.01em; }

.form-select, .form-input {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.12s;
  appearance: none;
}

.form-select:focus, .form-input:focus { border-color: var(--accent); }
.form-select option { background: var(--bg3); }

.form-inline { display: flex; gap: 10px; }
.form-inline .form-input { flex: 1; }

.btn-primary {
  padding: 9px 20px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s, transform 0.1s;
  white-space: nowrap;
}

.btn-primary:hover { background: var(--accent2); }
.btn-primary:active { transform: scale(0.97); }

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 9px 20px;
  background: #fff;
  border: 1px solid #dadce0;
  border-radius: var(--radius-sm);
  color: #3c4043;
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s, transform 0.1s;
}
.btn-google:hover { background: #f8f9fa; }
.btn-google:active { transform: scale(0.97); }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text3);
  font-size: 12px;
  margin: 4px 0;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Location list ── */
.location-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  max-width: 480px;
}

.loc-user { display: flex; align-items: center; gap: 10px; }
.loc-name { font-size: 13.5px; font-weight: 500; }
.loc-room { font-size: 12.5px; color: var(--text2); font-family: var(--mono); }
.loc-room.none { color: var(--text3); }

/* ── Users view ── */
.user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.user-row-info { display: flex; align-items: center; gap: 12px; }
.user-row-name { font-size: 14px; font-weight: 500; }
.user-row-loc { font-size: 12px; color: var(--text3); margin-top: 2px; }

.btn-remove {
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text3);
  font-family: var(--font);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}

.btn-remove:hover { border-color: var(--red); color: var(--red); }

/* ── Activity view ── */
.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.activity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.activity-dot.in { background: var(--green); }
.activity-dot.out { background: var(--text3); }

.activity-text { font-size: 13.5px; color: var(--text2); }
.activity-text strong { color: var(--text); font-weight: 500; }
.activity-time { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text3); flex-shrink: 0; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 13px;
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s, transform 0.18s;
  white-space: nowrap;
  z-index: 999;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Scanner ── */
.scanner-container {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto 20px;
  aspect-ratio: 4 / 5;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scanner-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.scanner-frame {
  width: 250px;
  height: 250px;
  border: 2px solid var(--accent);
  border-radius: 12px;
  box-shadow: inset 0 0 0 100vmax rgba(0, 0, 0, 0.4), 0 0 0 2px var(--accent);
  animation: scannerPulse 2s infinite;
}

@keyframes scannerPulse {
  0%, 100% { box-shadow: inset 0 0 0 100vmax rgba(0, 0, 0, 0.4), 0 0 0 2px var(--accent), 0 0 10px rgba(124, 108, 252, 0.3); }
  50% { box-shadow: inset 0 0 0 100vmax rgba(0, 0, 0, 0.4), 0 0 0 2px var(--accent), 0 0 20px rgba(124, 108, 252, 0.6); }
}

.scanner-status {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(0, 0, 0, 0.6);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  text-align: center;
  backdrop-filter: blur(8px);
}

.scanner-info {
  max-width: 480px;
  margin: 0 auto 20px;
}

.info-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.info-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.info-text {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
}

.scanner-last-scan {
  max-width: 480px;
  margin: 20px auto 0;
}

.last-scan-card {
  background: var(--green-dim);
  border: 1px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 14px;
  animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.last-scan-time {
  font-size: 11px;
  color: var(--green);
  font-family: var(--mono);
  margin-bottom: 8px;
  opacity: 0.7;
}

.last-scan-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.last-scan-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

.last-scan-room {
  font-size: 12px;
  color: var(--text2);
  margin-top: 2px;
}

/* ── Avatar colors ── */
.av-0 { background: rgba(124,108,252,0.18); color: #a599ff; }
.av-1 { background: rgba(52,211,153,0.18); color: #34d399; }
.av-2 { background: rgba(251,191,36,0.18); color: #fbbf24; }
.av-3 { background: rgba(248,113,113,0.18); color: #f87171; }
.av-4 { background: rgba(96,165,250,0.18); color: #60a5fa; }
.av-5 { background: rgba(244,114,182,0.18); color: #f472b6; }

/* ── Hamburger (desktop: hidden) ── */
.hamburger-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  margin-right: 8px;
  flex-shrink: 0;
}
.hamburger-btn:hover { color: var(--text); background: var(--bg3); }

/* ── Sidebar backdrop (mobile only) ── */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 49;
  backdrop-filter: blur(2px);
}

/* ── Mobile layout ── */
@media (max-width: 768px) {
  .hamburger-btn { display: flex; }

  .sidebar {
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 6px 0 32px rgba(0,0,0,0.5);
    width: 260px;
  }

  .app.sidebar-open .sidebar { transform: translateX(0); }
  .app.sidebar-open .sidebar-backdrop { display: block; }

  .main { width: 100%; }

  .topbar { padding: 12px 16px; }
  .topbar-time { display: none; }

  .view { padding: 20px 16px; }

  .stats-row { grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 24px; }
  .stat-value { font-size: 22px; }

  .floor-grid { grid-template-columns: 1fr 1fr; gap: 10px; }

  .form-card { max-width: 100%; }
  .location-row { max-width: 100%; }

  .form-inline { flex-wrap: wrap; }
  .form-inline .form-input { min-width: 0; }

  .user-row { flex-wrap: wrap; gap: 10px; }
  .user-row-actions { width: 100%; display: flex; gap: 6px; padding-left: 48px; }

  .scanner-container { max-width: 100%; aspect-ratio: 3/4; }
  .scanner-info { max-width: 100%; }
  .scanner-last-scan { max-width: 100%; }

  .qr-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  .auth-card { max-width: 100%; }
  .sessions-card { max-width: 100%; }
  .sessions-actions { grid-template-columns: 1fr; }

  .confirm-card { margin: 0 16px; }

  .room-add-form { flex-wrap: wrap; }
  .room-add-form .form-input { min-width: 0; flex: 1 1 120px; }

  .sidebar-add-room { flex-wrap: wrap; }

  .live-badge span.live-dot { display: block; }
}

@media (max-width: 440px) {
  .floor-grid { grid-template-columns: 1fr; }
  .qr-grid    { grid-template-columns: 1fr; }
  .stats-row  { grid-template-columns: 1fr 1fr; }
  .topbar-title { font-size: 13px; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── Full-page screens ── */
.fullpage {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  overflow-y: auto;
  padding: 24px 16px;
}

/* ── Auth page ── */
.auth-card {
  width: 100%;
  max-width: 360px;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.auth-logo svg { color: var(--accent); }

.auth-tabs {
  display: flex;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-bottom: 24px;
  gap: 2px;
}

.auth-tab {
  flex: 1;
  padding: 7px 0;
  border: none;
  background: none;
  color: var(--text2);
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.auth-tab.active { background: var(--bg3); color: var(--text); }
.auth-tab:hover:not(.active) { color: var(--text); }

.btn-block { width: 100%; margin-top: 4px; }

.form-error {
  font-size: 12.5px;
  color: var(--red);
  margin-top: 14px;
  padding: 9px 12px;
  background: var(--red-dim);
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

/* ── Session picker ── */
.sessions-card {
  width: 100%;
  max-width: 520px;
}

.sessions-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.sessions-welcome {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
}
.sessions-welcome strong { color: var(--accent); }

.session-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.sessions-empty {
  font-size: 13px;
  color: var(--text3);
  padding: 8px 0;
}

.session-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, background 0.12s;
  width: 100%;
}
.session-btn:hover { border-color: var(--accent); background: rgba(124,108,252,0.04); }

.session-btn-icon { font-size: 20px; flex-shrink: 0; }
.session-btn-info { flex: 1; }
.session-btn-name { font-size: 14px; font-weight: 600; }
.session-btn-code { font-size: 11px; color: var(--text3); font-family: var(--mono); margin-top: 2px; }

.sessions-divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

.sessions-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 500px) {
  .sessions-actions { grid-template-columns: 1fr; }
}

.sessions-action-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.btn-text {
  background: none;
  border: none;
  color: var(--text3);
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color 0.12s, background 0.12s;
}
.btn-text:hover { color: var(--text); background: var(--bg3); }

/* ── Sidebar session indicator ── */
.session-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.session-indicator span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-session-switch {
  background: none;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text3);
  font-family: var(--font);
  font-size: 11px;
  padding: 2px 8px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color 0.12s, color 0.12s;
}
.btn-session-switch:hover { border-color: var(--accent); color: var(--accent); }

/* ── Sidebar logged-in user row ── */
.sidebar-user-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: auto;
}

.btn-logout {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.12s;
  flex-shrink: 0;
}
.btn-logout:hover { color: var(--red); }

/* ── Current user bar ── */
.current-user-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  margin: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg3);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.12s;
  min-height: 42px;
}
.current-user-bar:hover { border-color: var(--accent); }
.current-user-name { font-size: 12.5px; font-weight: 500; color: var(--text); flex: 1; }
.current-user-switch { font-size: 11px; color: var(--text3); }
.current-user-unset { font-size: 12px; color: var(--text3); }

/* ── You tag ── */
.you-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 99px;
  background: rgba(124,108,252,0.15);
  color: var(--accent);
  margin-left: 6px;
  vertical-align: middle;
  letter-spacing: 0.02em;
}

/* ── Room card check-in buttons ── */
.btn-room-enter, .btn-room-leave {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 6px 0;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  border: none;
}
.btn-room-enter {
  background: rgba(124,108,252,0.1);
  color: var(--accent);
  border: 1px solid rgba(124,108,252,0.25);
}
.btn-room-enter:hover { background: rgba(124,108,252,0.2); }
.btn-room-leave {
  background: rgba(248,113,113,0.08);
  color: var(--red);
  border: 1px solid rgba(248,113,113,0.2);
}
.btn-room-leave:hover { background: rgba(248,113,113,0.15); }

.room-card.me-here { border-color: rgba(124,108,252,0.5); }

/* ── Identity modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.modal-card {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.12s, background 0.12s;
}
.modal-close:hover { color: var(--text); background: var(--bg3); }

.modal-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}

.modal-sub {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 20px;
}

.identity-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.identity-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, background 0.12s;
}
.identity-btn:hover { border-color: var(--accent); background: rgba(124,108,252,0.06); }

.identity-empty {
  color: var(--text3);
  font-size: 13px;
  text-align: center;
  padding: 8px 0;
}

.modal-divider {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  text-align: center;
  margin: 16px 0;
  position: relative;
}
.modal-divider::before, .modal-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 38%;
  height: 1px;
  background: var(--border);
}
.modal-divider::before { left: 0; }
.modal-divider::after { right: 0; }

/* ── QR Codes view ── */
.qr-intro {
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 24px;
  line-height: 1.6;
  max-width: 560px;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.qr-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.qr-canvas-wrap canvas, .qr-canvas-wrap img {
  border-radius: var(--radius-sm);
  display: block;
  background: #f5f5f5;
  padding: 8px;
}

.qr-room-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ── Confirm dialog ── */
.confirm-card {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 32px 28px 24px;
  width: 100%;
  max-width: 320px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
  text-align: center;
}

.confirm-icon {
  font-size: 36px;
  margin-bottom: 14px;
  line-height: 1;
}

.confirm-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.confirm-sub {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 24px;
}

.confirm-actions {
  display: flex;
  gap: 8px;
}

.confirm-btn-cancel {
  flex: 1;
  padding: 9px 0;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text2);
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.confirm-btn-cancel:hover { background: var(--border); color: var(--text); }

.confirm-btn-delete {
  flex: 1;
  padding: 9px 0;
  background: var(--red-dim);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: var(--radius-sm);
  color: var(--red);
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s;
}
.confirm-btn-delete:hover { background: rgba(248,113,113,0.2); }

/* ── Sidebar rooms ── */
.sidebar-rooms {
  padding: 14px 14px 10px;
  border-top: 1px solid var(--border);
}

.sidebar-rooms-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.btn-add-room {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--border2);
  background: none;
  color: var(--text3);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.12s, color 0.12s;
  padding: 0;
}
.btn-add-room:hover { border-color: var(--accent); color: var(--accent); }

.sidebar-add-room {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.sidebar-room-input {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  outline: none;
}
.sidebar-room-input:focus { border-color: var(--accent); }

.icon-select-mini {
  padding: 4px 3px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  outline: none;
  width: auto;
  flex-shrink: 0;
}

.sb-room-row {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 4px;
  border-radius: var(--radius-sm);
  transition: background 0.1s;
}
.sb-room-row:hover { background: var(--bg3); }
.sb-room-row:hover .sb-room-actions { opacity: 1; }

.sb-room-icon { font-size: 14px; flex-shrink: 0; }
.sb-room-name { font-size: 12.5px; color: var(--text2); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sb-room-actions {
  display: flex;
  gap: 3px;
  opacity: 0;
  transition: opacity 0.1s;
  flex-shrink: 0;
}

.sb-btn-edit, .sb-btn-delete, .sb-btn-save {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  transition: background 0.1s, color 0.1s;
  padding: 0;
}
.sb-btn-edit:hover  { background: rgba(124,108,252,0.15); color: var(--accent); }
.sb-btn-delete:hover { background: rgba(248,113,113,0.15); color: var(--red); }
.sb-btn-save:hover  { background: rgba(52,211,153,0.15);  color: var(--green); }

.sb-room-edit {
  display: flex;
  align-items: center;
  gap: 5px;
  width: 100%;
  padding: 3px 0;
}

/* ── Room management ── */
.room-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.room-row-info { display: flex; align-items: center; gap: 10px; }
.room-row-icon { font-size: 18px; }
.room-row-name { font-size: 13.5px; font-weight: 500; color: var(--text); }
.room-row-actions { display: flex; gap: 6px; }

/* ── Role badges ── */
.role-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 99px;
  margin-left: 6px;
  vertical-align: middle;
  letter-spacing: 0.02em;
}
.role-badge.owner      { background: rgba(251,191,36,0.15); color: var(--amber); }
.role-badge.admin-badge { background: rgba(124,108,252,0.15); color: var(--accent); }

.user-row-actions { display: flex; gap: 6px; align-items: center; }

.btn-role {
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text3);
  font-family: var(--font);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
  white-space: nowrap;
}
.btn-role:hover { border-color: var(--accent); color: var(--accent); }

.btn-edit {
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text3);
  font-family: var(--font);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}
.btn-edit:hover { border-color: var(--accent); color: var(--accent); }

.room-edit-form {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  flex-wrap: wrap;
}

.room-add-form {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-select {
  width: auto;
  flex-shrink: 0;
  font-size: 16px;
  padding: 8px 6px;
}