:root {
  color-scheme: light;
  --bg-surface: #ffffff;
  --bg-muted: #f8f9fa;
  --border: rgba(0, 0, 0, 0.06);
  --text-primary: #1a1a1a;
  --text-secondary: #6b7280;
  --accent: #007aff;
  --accent-dark: #0051d5;
  --accent-soft: rgba(0, 122, 255, 0.1);
  --danger: #ff3b30;
  --success: #34c759;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 16px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
  background: #f5f5f7;
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 40px 20px 60px;
  gap: 32px;
}

.top-bar {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand h1 {
  font-size: 32px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.03em;
}

.brand p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: 24px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
  height: calc(100vh - 200px);
}

.card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 600;
}

.subtitle {
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.auth-tabs {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-muted);
  border-radius: 999px;
  margin-bottom: 24px;
  gap: 4px;
}

.auth-tab {
  border: none;
  background: none;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.auth-tab.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: 0 1px 6px rgba(15, 23, 42, 0.1);
}

.status-banner {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.status-banner.success {
  background: rgba(22, 163, 74, 0.12);
  border-color: rgba(22, 163, 74, 0.22);
  color: #15803d;
}

.status-banner.error {
  background: rgba(220, 38, 38, 0.12);
  border-color: rgba(220, 38, 38, 0.24);
  color: #b91c1c;
}

.status-banner.info {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.24);
  color: #1d4ed8;
}

.status-panel {
  max-width: 640px;
  width: 100%;
  margin: 0 auto 28px;
  padding: 26px 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.14);
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: none;
}

.status-panel.active {
  display: block;
}

.status-panel h2 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.status-panel p {
  margin: 0 0 22px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.status-panel .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.status-panel .actions .btn {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.status-panel .btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
}

.status-panel .btn.secondary {
  background: rgba(15, 23, 42, 0.04);
  color: var(--text-primary);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.hidden-panel {
  display: none !important;
}

body.status-only .panel-grid {
  display: none;
}

body.status-only .top-bar {
  display: none;
}

.status-panel.recovery h2 {
  margin-bottom: 18px;
}

.recovery-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 12px;
}

.recovery-form .input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.recovery-form .input-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.recovery-form .input-group input {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 15px;
  background: #fff;
}

.recovery-form .input-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.recovery-form .btn.primary {
  align-self: flex-start;
  padding: 12px 20px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.24);
}

.panel-alert {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid transparent;
}

.panel-alert.error {
  background: rgba(220, 38, 38, 0.12);
  border-color: rgba(220, 38, 38, 0.2);
  color: #b91c1c;
}

.panel-alert.success {
  background: rgba(22, 163, 74, 0.12);
  border-color: rgba(22, 163, 74, 0.2);
  color: #15803d;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

input {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 15px;
  background: #fff;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.2);
}

.btn.primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.btn.link {
  background: none;
  color: var(--accent);
  font-weight: 500;
  padding: 0;
  margin-top: 16px;
}

.password-helper {
  padding: 14px 16px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-secondary);
  display: none;
  flex-direction: column;
  gap: 8px;
}

.password-helper.active {
  display: flex;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.checklist li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check-symbol {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(15, 23, 42, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: transparent;
  transition: all 0.2s ease;
}

.checklist li.valid .check-symbol {
  border-color: var(--success);
  background: rgba(22, 163, 74, 0.1);
  color: var(--success);
}

.alert {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  border: 1px solid transparent;
}

.alert.error {
  background: rgba(220, 38, 38, 0.08);
  border-color: rgba(220, 38, 38, 0.18);
  color: #b91c1c;
}

.alert.success {
  background: rgba(22, 163, 74, 0.08);
  border-color: rgba(22, 163, 74, 0.18);
  color: #15803d;
}

.alert.info {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.18);
  color: #1d4ed8;
}

.hidden { display: none !important; }

.session-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 18px;
  border: 1px solid var(--border);
  transition: all 0.2s ease;
  cursor: pointer;
}

.session-card.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.session-title {
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 17px;
  color: var(--text-primary);
}

.session-meta {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.session-snippet {
  color: var(--text-secondary);
  line-height: 1.5;
  font-size: 15px;
}

.session-grid {
  display: grid;
  gap: 12px;
  overflow-y: auto;
  flex: 1;
}

.search-bar {
  position: relative;
}

.search-bar input {
  width: 100%;
  padding-left: 44px;
}

.search-bar svg {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  stroke: var(--text-secondary);
  opacity: 0.6;
}

.user-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.muted {
  color: var(--text-secondary);
}


.empty-state {
  text-align: center;
  padding: 60px 0;
  color: var(--text-secondary);
}

.modal-layer {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.22);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal h3 {
  margin: 0;
  font-size: 22px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.modal .btn {
  min-width: 120px;
}

.detail-modal {
  max-width: 720px;
  gap: 24px;
}

.detail-modal h2 {
  margin: 0;
}

.detail-section {
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

.detail-section h4 {
  margin: 0 0 12px;
  font-size: 16px;
}

.detail-section p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-secondary);
}

#detailPanel {
  overflow-y: auto;
}

.danger {
  background: var(--danger) !important;
  color: #fff !important;
}

.danger:hover {
  opacity: 0.9;
}

@media (max-width: 960px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .layout {
    padding: 24px 16px 80px;
  }
}