:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #0284c7;
  --accent-blue-hover: #0369a1;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(2, 132, 199, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.12) 0%, transparent 40%);
}

.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--bg-card-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.hidden {
  display: none !important;
}

/* Scrollbar styling */
.scrollable::-webkit-scrollbar {
  width: 6px;
}
.scrollable::-webkit-scrollbar-track {
  background: transparent;
}
.scrollable::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
.scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Login Screen */
.login-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 40px;
  border-radius: var(--radius-lg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-blue);
}

.brand h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand h1 span {
  color: var(--accent-blue);
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn-accent {
  background: var(--accent-purple);
  color: #fff;
}
.btn-accent:hover {
  background: #7c3aed;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-outline-danger {
  background: transparent;
  border: 1px solid var(--accent-rose);
  color: var(--accent-rose);
}
.btn-outline-danger:hover {
  background: var(--accent-rose);
  color: #fff;
}

.icon {
  width: 16px;
  height: 16px;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-top: 16px;
}
.alert-danger {
  background: rgba(244, 63, 94, 0.15);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #fecdd3;
}

/* App Console Container */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 16px;
  gap: 16px;
}

/* App Header */
.app-header {
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-small {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
}

.header-badge {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.actions-bar {
  display: flex;
  gap: 12px;
}

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

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Workspace Grid */
.workspace {
  display: grid;
  grid-template-columns: 280px 380px 1fr;
  gap: 16px;
  flex: 1;
  min-height: 0;
}

/* Sidebar Accounts */
.sidebar {
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

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

.badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
}

.accounts-list {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  overflow-y: auto;
}

.account-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.account-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.account-card.active {
  background: rgba(2, 132, 199, 0.15);
  border-color: var(--accent-blue);
}

.account-email {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.account-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.account-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
}
.status-dot.needsreconnect { background: var(--accent-amber); }
.status-dot.error { background: var(--accent-rose); }

/* Messages Pane */
.messages-pane {
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--bg-card-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pane-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pane-title h2 {
  font-size: 16px;
  font-weight: 600;
}

.sync-status-tag {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.search-box input {
  width: 100%;
  padding: 8px 14px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
}

.messages-list {
  flex: 1;
  overflow-y: auto;
}

.message-item {
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: var(--transition);
}

.message-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.message-item.unread {
  border-left: 3px solid var(--accent-blue);
  background: rgba(2, 132, 199, 0.05);
}

.message-item.active {
  background: rgba(255, 255, 255, 0.08);
}

.msg-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.msg-sender {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.msg-time {
  font-size: 11px;
  color: var(--text-muted);
}

.msg-subject-text {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.msg-preview {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Detail Pane */
.detail-pane {
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #ffffff;
  color: #1e293b;
}

.detail-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.detail-header {
  padding: 24px;
  border-bottom: 1px solid #e2e8f0;
  background: #f8fafc;
}

.msg-subject {
  font-size: 20px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
}

.msg-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sender-name {
  font-weight: 600;
  color: #1e293b;
}

.sender-email {
  color: #64748b;
  font-size: 13px;
}

.msg-date {
  font-size: 12px;
  color: #64748b;
}

.body-container {
  flex: 1;
  position: relative;
}

.msg-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
}

.empty-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}