:root {
  --bg: #0a0e1a;
  --bg-card: #111827;
  --bg-hover: #1a2235;
  --bg-input: #0d1220;
  --border: #1e293b;
  --text: #e2e8f0;
  --text-muted: #64748b;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --green: #10b981;
  --red: #ef4444;
  --yellow: #f59e0b;
  --purple: #8b5cf6;
  --sidebar-w: 220px;
  --radius: 10px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform 0.3s;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 24px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-icon {
  font-size: 24px;
}

.nav-links {
  list-style: none;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(59, 130, 246, 0.08);
  border-left-color: var(--primary);
}

.nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.shift-badge {
  margin: 16px 20px 0;
  padding: 10px 14px;
  background: var(--bg-hover);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.shift-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.content {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar h1 {
  font-size: 18px;
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.auth-section {
  display: flex;
  gap: 8px;
  align-items: center;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red);
  transition: background 0.3s;
}

.status-dot.connected {
  background: var(--green);
}

.page {
  display: none;
  padding: 24px 28px;
}

.page.active {
  display: block;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.stat-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 24px;
  opacity: 0.3;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.card-header h2 {
  font-size: 15px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th {
  text-align: left;
  padding: 10px 16px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-hover);
}

.table td {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table tr:hover td {
  background: var(--bg-hover);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-green { background: rgba(16, 185, 129, 0.15); color: var(--green); }
.badge-red { background: rgba(239, 68, 68, 0.15); color: var(--red); }
.badge-yellow { background: rgba(245, 158, 11, 0.15); color: var(--yellow); }
.badge-blue { background: rgba(59, 130, 246, 0.15); color: var(--primary); }
.badge-purple { background: rgba(139, 92, 246, 0.15); color: var(--purple); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  padding: 20px;
}

.team-card {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.team-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.team-card-name {
  font-weight: 600;
  font-size: 15px;
}

.team-card-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.team-card-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

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

.btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--red);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--green);
}
.btn-success:hover { background: rgba(16, 185, 129, 0.25); }

.input, .select-sm, .input-sm {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  outline: none;
  transition: border 0.15s;
}

.input:focus, .input-sm:focus {
  border-color: var(--primary);
}

.input-sm {
  padding: 5px 10px;
  font-size: 12px;
  width: 160px;
}

.select-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.textarea {
  resize: vertical;
  min-height: 60px;
  width: 100%;
}

.input {
  width: 100%;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
}

.modal.hidden { display: none; }

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 420px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h3 {
  font-size: 16px;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
}

.empty-state {
  text-align: center;
  padding: 32px;
  color: var(--text-muted);
  font-size: 14px;
}

.activity-list {
  padding: 0;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
  font-size: 18px;
  margin-top: 2px;
}

.activity-text {
  flex: 1;
}

.activity-time {
  color: var(--text-muted);
  font-size: 11px;
  white-space: nowrap;
}

.settings-section {
  padding: 20px;
}

.settings-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.settings-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

.settings-hint code {
  background: var(--bg-hover);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
}

.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: 'SF Mono', monospace;
  font-size: 13px;
  color: var(--green);
  word-break: break-all;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.status-row:last-child { border-bottom: none; }

.test-result {
  margin-top: 12px;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
}

.test-result.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green);
}

.test-result.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--red);
}

.test-result.hidden { display: none; }

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  z-index: 999;
  transition: all 0.3s;
  transform: translateY(100px);
  opacity: 0;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success { background: var(--green); color: #fff; }
.toast.error { background: var(--red); color: #fff; }
.toast.info { background: var(--primary); color: #fff; }

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .content {
    margin-left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .auth-section .input-sm {
    width: 110px;
  }
}

.otp-row {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.btn-copy:hover {
  background: var(--primary-hover);
  transform: scale(1.05);
}

.btn-copy.copied {
  background: var(--green);
}