/* Professional Email App Theme (Outlook-inspired) */
:root{
  --bg: #f3f2f1;
  --card: #ffffff;
  --muted: #737373;
  --accent: #0078d4;
  --accent-2: #106ebe;
  --border: #e1dfdd;
  --text: #201f1e;
  --text-light: #605e5c;
  --surface: #faf9f8;
  --hover: #f7f6f5;
  --shadow: rgba(0, 0, 0, 0.05);
  --shadow-lg: rgba(0, 0, 0, 0.1);
  --sidebar-bg: #f3f2f1;
}

*{box-sizing:border-box}
body{font-family:'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif; background:var(--bg); color:var(--text); margin:0; line-height:1.5}
.container{max-width:1400px;margin:0 auto;padding:20px}
.topbar {
  background-color: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: none;
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 100%;
}

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

.settings-link {
  color: var(--muted);
  font-size: 18px;
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.settings-link:hover {
  color: var(--accent);
  background: var(--surface);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-title {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
}

.brand-sub {
  font-size: 11px;
  color: var(--text-light);
}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:24px 0}
.card{background:var(--card);padding:20px;border-radius:12px;box-shadow:0 2px 8px var(--shadow);border:1px solid var(--border)}
.card h3{margin:0;color:var(--muted);font-size:14px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px}
.value{font-size:24px;font-weight:700;margin-top:8px;color:var(--accent)}
.panel{background:transparent;padding:0;border-radius:8px}
.list-wrap{max-height:640px;overflow:auto}
.email-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.email-item {
  display: grid;
  grid-template-columns: 1fr 100px;
  gap: 8px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 8px;
  background: var(--card);
  position: relative;
  overflow: visible;
  margin-bottom: 4px;
}

.email-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 0.2s ease;
}

.email-item:hover {
  background: var(--hover);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--shadow-lg);
}

.email-item:hover::before {
  background: var(--accent);
}

.email-item .left {
  display: none;
}

.email-item .when {
  font-size: 12px;
  color: var(--muted);
  display: block;
  text-align: right;
  font-weight: 500;
}

.email-item .sender {
  font-weight: 600;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
  font-size: 13px;
}

.sender-small {
  font-size: 11px;
  color: var(--text-light);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-item .mid {
  min-width: 0;
}

.email-item .subject {
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 3px;
}

.email-item .category {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  display: none;
}

.category-badge {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--surface);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  position: relative;
  cursor: help;
  transition: all 0.2s ease;
}

.category-badge:hover {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.2);
}

.category-badge::after {
  content: attr(data-category);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  margin-bottom: 6px;
  z-index: 10;
}

.category-badge:hover::after {
  opacity: 1;
}

.email-item .right {
  min-width: 100px;
  width: 100px;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.email-item.selected {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(67, 56, 202, 0.05));
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.15);
}

.email-item.selected::before {
  background: var(--accent);
}

/* Quick Stats Bar */
.quick-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.stat-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px var(--shadow);
  transition: all 0.2s ease;
}

.stat-badge:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 6px var(--shadow);
}

.stat-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}

.stat-text {
  font-size: 12px;
  color: var(--text-light);
  font-weight: 500;
}

/* Dashboard Container - Outlook-style layout */
.dashboard-container {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
  margin-bottom: 0;
  width: 100%;
  background: var(--bg);
}

.dashboard-sidebar {
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px var(--shadow);
  height: fit-content;
  max-height: 75vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  border-radius: 8px;
}

.sidebar-header {
  margin-bottom: 16px;
}

.search-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: all 0.3s ease;
}

.search-input:focus {
  border-color: var(--accent);
  background: var(--card);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.dashboard-detail {
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px var(--shadow);
  overflow: visible;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  height: 75vh;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 40px;
  text-align: center;
  color: var(--muted);
  flex: 1;
  height: 100%;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.6;
}

.empty-state h3 {
  margin: 0 0 8px 0;
  color: var(--text);
  font-size: 20px;
}

.empty-state p {
  margin: 0;
  color: var(--text-light);
  font-size: 14px;
}

.detail-content {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--card);
  margin: 0;
}

.detail-header {
  margin-top: 0;
  margin-bottom: 0;
  padding: 24px 32px 20px 32px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--card);
  z-index: 10;
}

.detail-header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
}

.detail-subject {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.btn-close {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--muted);
  cursor: pointer;
  padding: 4px 8px;
  transition: all 0.2s ease;
  border-radius: 6px;
}

.btn-close:hover {
  color: var(--text);
  background: var(--surface);
}

.detail-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-light);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* two-pane layout (legacy) */
.two-pane{display:flex;gap:24px}
.sidebar{width:380px;background:var(--card);border-radius:12px;padding:20px;border:1px solid var(--border);box-shadow:0 2px 8px var(--shadow)}
.sidebar-header{padding:8px 0 16px 0}
.sidebar-header input{width:100%;padding:12px 16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;outline:none;transition:all 0.2s ease}
.sidebar-header input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}
.detail{flex:1;background:transparent}
.detail .empty{padding:60px 40px;color:var(--muted);text-align:center;font-size:16px}
.detail-content{background:var(--card);border-radius:12px;overflow:auto;border:1px solid var(--border);box-shadow:0 2px 8px var(--shadow)}
.meta{color:var(--text-light);margin-bottom:16px;font-size:14px}

/* make code-like areas wrap and scroll when long */
pre, .prelike {
  white-space: pre-wrap; /* allow wrapping */
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-light);
}
.detail-content pre{max-height:60vh;overflow:auto;background:var(--surface);border-radius:8px;border:1px solid var(--border)}

/* responsive two-pane -> stacked */
@media (max-width:980px){
  .two-pane{flex-direction:column}
  .sidebar{width:100%}
  .detail{width:100%}
}

/* detail sections wrapper */
.detail-sections-wrapper {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0;
  gap: 0;
}

/* detail sections */
.detail-section {
  padding: 24px 32px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.detail-section:first-child {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

/* Make reply section sticky at bottom */
.detail-section:last-child {
  position: sticky;
  bottom: 0;
  background: var(--card);
  z-index: 11;
  border-top: 1px solid var(--border);
  margin-top: 0;
}

.section-title {
  margin: 0 0 16px 0;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.prelike {
  background: var(--surface);
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.prelike pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.editor-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: visible;
  position: relative;
  z-index: 1;
}

.reply-textarea {
  width: 100%;
  min-height: 120px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  resize: vertical;
  transition: all 0.2s ease;
  pointer-events: auto;
  cursor: text;
  position: relative;
  z-index: 2;
}

.reply-textarea:focus {
  background: var(--card);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

/* chat/thread styles */
.thread-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 0;
  background: transparent;
  border-radius: 0;
  border: none;
  overflow: visible;
}

.bubble {
  max-width: 85%;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  align-self: flex-start;
  box-shadow: 0 1px 2px var(--shadow);
  transition: all 0.3s ease;
}

.bubble:hover {
  box-shadow: 0 2px 4px var(--shadow-lg);
  transform: translateY(-1px);
}

.bubble.me {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #ffffff;
  align-self: flex-end;
  border: none;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.2);
  max-width: 85%;
}

.bubble.me:hover {
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
  transform: translateY(-1px);
}

.bubble .meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
  opacity: 0.75;
  display: flex;
  gap: 6px;
  align-items: center;
  font-weight: 500;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.bubble.me .meta {
  color: rgba(255, 255, 255, 0.7);
}

.bubble-body {
  line-height: 1.6;
  word-wrap: break-word;
  white-space: pre-wrap;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.3px;
}

.action-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  border-top: 1px solid var(--border);
  background: var(--card);
  flex-wrap: wrap;
  flex-shrink: 0;
  z-index: 10;
  position: relative;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 9px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
  background: var(--hover);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px var(--shadow-lg);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border: none;
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--hover);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon {
  font-size: 16px;
}

.auto-refresh-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.auto-refresh-toggle label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-light);
  user-select: none;
}

.auto-refresh-toggle input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--accent);
}

/* category badge */
.category-badge {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--surface);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  position: relative;
  cursor: help;
  transition: all 0.2s ease;
}

.category-badge:hover {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.2);
}

.category-badge::after {
  content: attr(data-category);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  margin-bottom: 6px;
  z-index: 10;
}

.category-badge:hover::after {
  opacity: 1;
}

/* Highlighting for unread/unsent emails */
.email-item.unsent {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.06), rgba(37, 99, 235, 0.03));
  border-left: 3px solid #3b82f6;
}

.email-item.unsent:hover {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.06));
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--shadow-lg);
}

.email-item.unsent.selected {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.15), rgba(67, 56, 202, 0.1));
  border-left: 3px solid #3b82f6;
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

/* Badge styling */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  background: var(--surface);
  color: var(--accent);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.badge.total {
  background: var(--surface);
  color: var(--text-light);
  border: 1px solid var(--border);
}

/* Unsent indicator badge */
.badge.unsent {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #ffffff;
  border: none;
  font-weight: 700;
  animation: pulse-unsent 2s infinite;
}

@keyframes pulse-unsent {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* modal */
.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;pointer-events:none;opacity:0;transition:opacity .18s ease;background:rgba(0,0,0,0.5)}
.modal.open{pointer-events:auto;opacity:1}
.modal-content{background:var(--card);padding:24px;border-radius:12px;max-width:900px;width:100%;box-shadow:0 20px 40px rgba(0,0,0,0.15);color:var(--text);border:1px solid var(--border)}
.modal-content .close{position:absolute;right:28px;top:18px;background:transparent;border:0;color:var(--muted);font-size:20px;cursor:pointer}
.modal-content pre{background:var(--surface);padding:16px;border-radius:8px;border:1px solid var(--border)}
.footer{padding:20px;text-align:center;color:var(--muted);font-size:13px}

@media (max-width:800px){.cards{grid-template-columns:repeat(2,1fr)}}

/* Additional light theme variables for enhanced styling */
textarea, input[type="text"] {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  transition: all 0.2s ease;
}
textarea:focus, input[type="text"]:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1) !important;
  outline: none;
}

/* Additional specific styles for enhanced light theme */
.brand-logo{width:40px;height:40px;border-radius:8px;display:inline-block}

.badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:999px;font-weight:600;background:var(--surface);color:var(--accent);font-size:12px;border:1px solid var(--border);margin-left:4px}
.badges{display:flex;align-items:center;gap:4px}
.badge.draft{background:linear-gradient(90deg,#fbbf24,#f59e0b);color:#ffffff;border:none}

textarea#detail-generated{width:100%;min-height:160px;padding:16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);resize:vertical;font-size:14px;line-height:1.6;transition:all 0.2s ease}
textarea#detail-generated:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,0.1);outline:none}
textarea#detail-generated:disabled{background:var(--hover);color:var(--muted);cursor:not-allowed;opacity:0.7}

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

/* Responsive design */
@media (max-width:1024px){
  .dashboard-container {
    grid-template-columns: 300px 1fr;
  }
  
  .quick-stats {
    gap: 12px;
  }
}

@media (max-width:768px){
  .dashboard-container {
    grid-template-columns: 1fr;
    gap: 0;
    position: relative;
    height: calc(100vh - 80px);
  }
  
  .dashboard-sidebar {
    max-height: none !important;
    height: 100% !important;
    border-radius: 0;
    border-left: none;
    border-right: none;
    margin-bottom: 0;
    transition: transform 0.3s ease;
    overflow-y: auto;
    box-shadow: none;
  }
  
  .dashboard-sidebar.mobile-hidden {
    display: none;
  }
  
  .dashboard-detail {
    max-height: none;
    height: 100%;
    border-radius: 0;
    display: none;
  }
  
  .dashboard-detail.mobile-visible {
    display: flex;
  }
  
  .mobile-back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--surface);
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    text-align: left;
  }
  
  .mobile-back-btn:active {
    background: var(--hover);
  }
  
  .quick-stats {
    gap: 8px;
    margin-bottom: 12px;
  }
  
  .stat-badge {
    padding: 8px 12px;
    flex: 1;
  }
  
  .stat-num {
    font-size: 18px;
  }
  
  .detail-subject {
    font-size: 18px;
  }
  
  .detail-header {
    padding: 16px 20px 12px 20px;
  }
  
  .detail-meta {
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
  }
  
  .detail-section {
    padding: 16px 20px;
  }
  
  .detail-section:last-child {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    padding: 16px 20px;
    margin-bottom: 0;
  }
  
  .action-bar {
    flex-direction: row;
    padding: 12px 20px;
    gap: 8px;
    position: relative;
    z-index: 10;
  }
  
  .btn {
    font-size: 14px;
    padding: 8px 12px;
  }
  
  .auto-refresh-toggle {
    margin-left: auto;
  }
  
  .reply-textarea {
    min-height: 100px;
    font-size: 14px;
  }
  
  .section-title {
    font-size: 12px;
  }
}

@media (max-width:600px){
  .cards{grid-template-columns:1fr}
  .container{padding:16px}
  .sidebar{padding:16px}
  
  .quick-stats {
    gap: 10px;
    margin-bottom: 16px;
  }
  
  .stat-badge {
    padding: 8px 12px;
    font-size: 12px;
  }
  
  .stat-num {
    font-size: 18px;
  }
  
  .stat-text {
    font-size: 11px;
  }
  
  .dashboard-sidebar {
    max-height: none !important;
    height: 100% !important;
  }
  
  .dashboard-detail {
    max-height: none !important;
    height: 100% !important;
  }
  
  .detail-subject {
    font-size: 18px;
  }
  
  .section-title {
    font-size: 14px;
  }
  
  .reply-textarea {
    min-height: 120px;
  }
  
  .btn {
    padding: 10px 14px;
    font-size: 13px;
  }
}

@media (max-width:980px){
  .two-pane{flex-direction:column}
  .sidebar{width:100%}
  .detail{width:100%}
  .cards{grid-template-columns:repeat(2,1fr)}
}

/* Login page styles */
.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px;background:linear-gradient(180deg, #f8fafc 0%, #ffffff 100%)}
.login-card{width:420px;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:0 10px 30px rgba(15,23,42,0.08);padding:32px;display:flex;flex-direction:column;gap:18px}
.brand-block{display:flex;align-items:center;gap:14px}
.brand-text{display:flex;flex-direction:column}
.brand-title{font-size:20px;font-weight:800;color:var(--text)}
.brand-sub{font-size:12px;color:var(--muted)}
.login-form{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.login-form input{padding:12px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface);font-size:15px;color:var(--text);outline:none}
.login-form input:focus{border-color:var(--accent);box-shadow:0 6px 20px rgba(37,99,235,0.08)}
.login-error{background:#fee2e2;color:#991b1b;padding:10px;border-radius:8px;border:1px solid #fca5a5}
.login-footer{margin-top:6px;text-align:center;color:var(--text-light);font-size:13px}

/* visually hidden (a11y) */
.visually-hidden{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}

/* Settings Page Styles */
.settings-header {
  margin-bottom: 24px;
  text-align: left;
}

.settings-nav-top {
  margin-bottom: 12px;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.back-link:hover {
  color: var(--text);
  transform: translateX(-2px);
}

.settings-header h2 {
  margin: 0 0 8px 0;
  color: var(--text);
  font-size: 32px;
  font-weight: 700;
}

.settings-description {
  color: var(--text-light);
  font-size: 15px;
  margin: 0;
}

.settings-panel {
  display: flex;
  gap: 0;
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px var(--shadow);
  overflow: hidden;
  min-height: 70vh;
}

.settings-nav {
  width: 240px;
  background: var(--surface);
  padding: 12px 0;
  border-right: 1px solid var(--border);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  cursor: pointer;
  color: var(--text-light);
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  position: relative;
}

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

.nav-item.active {
  background: var(--card);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.nav-icon {
  font-size: 18px;
  display: none;
}

.settings-content {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

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

.tab-header {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.tab-header h3 {
  margin: 0 0 6px 0;
  color: var(--text);
  font-size: 22px;
  font-weight: 600;
}

.tab-header p {
  margin: 0;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.5;
}

/* Prompt Management Styles */
.prompt-section {
  margin-bottom: 32px;
}

.prompt-section-title {
  margin: 0 0 8px 0;
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
}

.prompt-section-description {
  margin: 0 0 16px 0;
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.5;
}

.prompt-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prompt-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: all 0.2s ease;
}

.prompt-card:hover {
  box-shadow: 0 4px 12px var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--accent);
}

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

.prompt-header h4 {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  flex: 1;
}

.prompt-description {
  color: var(--text-light);
  font-size: 13px;
  margin: 0 0 12px 0;
  line-height: 1.5;
}

.prompt-preview {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 12px;
  color: var(--text-light);
  overflow: hidden;
  max-height: 100px;
}

.prompt-preview pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* General Settings Styles */
.setting-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
  transition: all 0.2s ease;
}

.setting-card:hover {
  box-shadow: 0 2px 8px var(--shadow-lg);
}

.setting-card h4 {
  margin: 0 0 4px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.setting-description {
  margin: 0;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.5;
}

.setting-note,
.settings-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.setting-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.setting-value {
  font-weight: 600;
  color: var(--text);
  font-size: 16px;
}

.setting-group {
  margin-bottom: 24px;
}

.setting-label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 500;
  color: var(--text);
}

.setting-label span {
  font-size: 16px;
}

.setting-label small {
  color: var(--text-light);
  font-size: 13px;
  font-weight: 400;
}

.setting-input {
  max-width: 200px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
}

.setting-checkbox {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.settings-status {
  font-size: 13px;
  color: var(--text-light);
}

.settings-status.error {
  color: #dc2626;
}

/* Prompt Editor Modal */
.prompt-editor {
  max-width: 1000px;
  width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 24px 16px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  margin: 0;
  color: var(--text);
  font-size: 20px;
  font-weight: 600;
}

.close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--muted);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.close:hover {
  color: var(--text);
}

.modal-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.editor-info {
  margin-bottom: 16px;
}

.editor-info p {
  margin: 0;
  color: var(--text-light);
  font-size: 14px;
}

.editor-container {
  flex: 1;
  margin-bottom: 20px;
}

#prompt-editor,
#knowledge-editor {
  width: 100%;
  height: 100%;
  min-height: 400px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: all 0.2s ease;
}

#prompt-editor:focus,
#knowledge-editor:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  background: var(--card);
}

.editor-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Responsive settings */
@media (max-width: 980px) {
  .settings-panel {
    flex-direction: column;
  }
  
  .settings-nav {
    width: 100%;
    display: flex;
    overflow-x: auto;
    padding: 12px 0;
  }
  
  .nav-item {
    white-space: nowrap;
    border-left: none;
    border-bottom: 4px solid transparent;
  }
  
  .nav-item.active {
    border-left: none;
    border-bottom-color: var(--accent);
  }
}