/* GitHub Dark theme - harmonized with landing page */
:root {
  --primary: #58a6ff;
  --primary-dark: #1f6feb;
  --success: #2ecc71;
  --danger: #e74c3c;
  --bg-dark: #0d1117;
  --bg-darker: #010409;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --border: #30363d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg-darker);
  color: var(--text-primary);
  font-size: 13px;
  line-height: 1.5;
  padding-top: 64px;
}

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

/* Navbar - inspired by stockstrategy.net */
.navbar {
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.42);
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 64px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.navbar-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--success));
  border-radius: 6px;
  flex-shrink: 0;
}

.nav-actions {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-left: auto;
}

.nav-actions .nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav-actions .nav-link:hover {
  color: var(--primary);
  background: rgba(88, 166, 255, 0.08);
}

.nav-actions .nav-link.active {
  color: var(--primary);
}

.nav-actions .badge {
  display: none;
}

.nav-actions .btn {
  padding: 8px 18px;
  border: none;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(88, 166, 255, 0.35);
  margin-left: 8px;
}

.nav-actions .btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(88, 166, 255, 0.45);
}

/* Generic button styles used outside navbar */
.badge {
  background: rgba(88, 166, 255, 0.1);
  color: var(--primary);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 20px rgba(88, 166, 255, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(88, 166, 255, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Mobile hamburger menu */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .nav-actions {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .nav-actions.open {
    display: flex;
  }

  .menu-toggle {
    display: block !important;
    margin-left: auto;
  }

  .nav-actions .nav-link {
    font-size: 14px;
    padding: 12px 16px;
    width: 100%;
    text-align: center;
    border-radius: 8px;
    margin-right: 0 !important;
  }

  .nav-actions .nav-link:hover {
    background: rgba(88, 166, 255, 0.1);
  }

  .nav-actions .btn {
    margin-left: 0 !important;
    text-align: center;
    width: 100%;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  width: 100%;
}

/* Top Picks Card - GitHub Dark style */
.top-picks-card {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.top-picks-header {
  margin-bottom: 16px;
}

.top-picks-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.top-picks-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

.top-picks-tabs {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.top-picks-tab {
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 12px 16px !important;
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all 0.3s ease;
}

.top-picks-tab:hover {
  background: rgba(88, 166, 255, 0.05) !important;
  color: var(--text-primary) !important;
}

.top-picks-tab--selected {
  background: rgba(88, 166, 255, 0.1) !important;
  color: var(--primary) !important;
  border-left: 3px solid var(--primary) !important;
}

.pick-chip {
  display: inline-flex;
  align-items: center;
  background: var(--bg-darker);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  cursor: pointer;
}

.pick-chip:hover {
  background: var(--bg-dark);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(88, 166, 255, 0.2);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1f2e 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero h1 {
  margin: 0 0 8px 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.hero p {
  margin: 0 0 24px 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.controls-card {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.controls-row {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}

.label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  width: 150px;
  font-family: inherit;
  transition: all 0.3s ease;
}

.input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-darker);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.input:hover {
  border-color: var(--text-secondary);
}

.status {
  padding: 10px 16px;
  background: rgba(46, 204, 113, 0.1);
  color: var(--success);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
}

/* Card */
.card {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.card h2 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Custom Tabs */
.custom-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.custom-tab {
  background: transparent !important;
  border: none !important;
  border-bottom: 2px solid transparent !important;
  padding: 12px 20px !important;
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.custom-tab:hover {
  color: var(--text-primary) !important;
  background: rgba(88, 166, 255, 0.05) !important;
}

.custom-tab--selected {
  color: var(--primary) !important;
  border-bottom-color: var(--primary) !important;
}

/* Benchmark Chips */
.flex {
  display: flex;
}

.gap-16 {
  gap: 16px;
}

.flex-center {
  justify-content: center;
  flex-wrap: wrap;
}

.chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 28px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-darker);
  min-width: 120px;
  transition: all 0.3s ease;
}

.chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.chip.success {
  border-color: var(--success);
  background: rgba(46, 204, 113, 0.1);
}

.chip.danger {
  border-color: var(--danger);
  background: rgba(231, 76, 60, 0.1);
}

.chip strong {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chip span {
  font-size: 20px;
  font-weight: 700;
}

.chip.success span {
  color: var(--success);
}

.chip.danger span {
  color: var(--danger);
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 8px;
  overflow: hidden;
}

table thead {
  background: var(--bg-darker);
}

table th {
  text-align: center;
  padding: 12px 16px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

table tbody tr {
  transition: background 0.3s ease;
}

table tbody tr:hover {
  background: rgba(88, 166, 255, 0.05);
}

table td {
  text-align: center;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

table tbody tr:last-child td {
  border-bottom: none;
}

/* Chatbot */
#site-chatbot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
}

#chatbot-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  color: white;
  border: 2px solid rgba(46, 204, 113, 0.5);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(46, 204, 113, 0.5);
  transition: all 0.3s ease;
}

#chatbot-toggle:hover {
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(46, 204, 113, 0.6);
}

#chatbot-panel {
  display: none;
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 380px;
  height: 500px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  flex-direction: column;
  overflow: hidden;
}

#chatbot-panel[style*="display: flex"] {
  display: flex !important;
}

#chatbot-header {
  background: var(--bg-darker);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

#chatbot-header strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

#chatbot-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.3s ease;
}

#chatbot-close:hover {
  background: rgba(88, 166, 255, 0.1);
  color: var(--text-primary);
}

#chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

#chatbot-messages::-webkit-scrollbar-track {
  background: var(--bg-darker);
}

#chatbot-messages::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

#chatbot-form {
  padding: 16px;
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

#chatbot-input {
  flex: 1;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
}

#chatbot-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

#chatbot-form button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

#chatbot-form button:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.chat-message {
  padding: 10px 14px;
  border-radius: 8px;
  max-width: 85%;
  font-size: 13px;
  line-height: 1.5;
}

.chat-message.user {
  background: var(--primary);
  color: white;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message.assistant {
  background: var(--bg-darker);
  color: var(--text-primary);
  align-self: flex-start;
  border: 1px solid var(--border);
}

/* Loading Spinner */
._dash-loading {
  display: flex;
  background: linear-gradient(135deg, var(--tv-bg-secondary) 0%, var(--tv-bg-tertiary) 100%);
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero h1 {
  margin: 0 0 8px 0;
  font-size: 28px;
  font-weight: 600;
  color: var(--tv-text-primary);
}

.hero p {
  margin: 0 0 24px 0;
  font-size: 14px;
  color: var(--tv-text-secondary);
}

.controls-card {
  background: var(--tv-bg-primary);
  border: 1px solid var(--tv-border);
  border-radius: 6px;
  padding: 20px;
}

.controls-row {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}

.label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--tv-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input {
  background: var(--tv-bg-secondary);
  border: 1px solid var(--tv-border);
  color: var(--tv-text-primary);
  padding: 10px 12px;
  border-radius: 4px;
  font-size: 13px;
  width: 150px;
  font-family: inherit;
  transition: all 0.2s;
}

.input:focus {
  outline: none;
  border-color: var(--tv-blue);
  background: var(--tv-bg-tertiary);
}

.input:hover {
  border-color: var(--tv-text-tertiary);
}

.status {
  padding: 10px 16px;
  background: rgba(8, 153, 129, 0.1);
  color: var(--tv-green);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

/* Card */
.card {
  background: var(--tv-bg-secondary);
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.card h2 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--tv-text-primary);
}

/* Custom Tabs */
.custom-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--tv-border);
  margin-bottom: 20px;
}

.custom-tab {
  background: transparent !important;
  border: none !important;
  border-bottom: 2px solid transparent !important;
  padding: 12px 20px !important;
  color: var(--tv-text-secondary) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.custom-tab:hover {
  color: var(--tv-text-primary) !important;
  background: rgba(255, 255, 255, 0.02) !important;
}

.custom-tab--selected {
  color: var(--tv-blue) !important;
  border-bottom-color: var(--tv-blue) !important;
}

/* Benchmark Chips */
.flex {
  display: flex;
}

.gap-16 {
  gap: 16px;
}

.flex-center {
  justify-content: center;
  flex-wrap: wrap;
}

.chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 28px;
  border-radius: 8px;
  border: 1px solid var(--tv-border);
  background: var(--tv-bg-tertiary);
  min-width: 120px;
  transition: all 0.2s;
}

.chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.chip.success {
  border-color: var(--tv-green);
  background: rgba(8, 153, 129, 0.1);
}

.chip.danger {
  border-color: var(--tv-red);
  background: rgba(242, 54, 69, 0.1);
}

.chip strong {
  font-size: 12px;
  color: var(--tv-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chip span {
  font-size: 20px;
  font-weight: 600;
}

.chip.success span {
  color: var(--tv-green);
}

.chip.danger span {
  color: var(--tv-red);
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 6px;
  overflow: hidden;
}

table thead {
  background: var(--tv-bg-primary);
}

table th {
  text-align: center;
  padding: 12px 16px;
  color: var(--tv-text-secondary);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--tv-border);
}

table tbody tr {
  transition: background 0.2s;
}

table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

table td {
  text-align: center;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--tv-text-primary);
  border-bottom: 1px solid var(--tv-border);
}

table tbody tr:last-child td {
  border-bottom: none;
}

/* Chatbot */
#site-chatbot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
}

#chatbot-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--tv-blue);
  color: white;
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(41, 98, 255, 0.4);
  transition: all 0.3s;
}

#chatbot-toggle:hover {
  background: var(--tv-blue-hover);
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(41, 98, 255, 0.5);
}

#chatbot-panel {
  display: none;
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 380px;
  height: 500px;
  background: var(--tv-bg-secondary);
  border: 1px solid var(--tv-border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  flex-direction: column;
  overflow: hidden;
}

#chatbot-panel[style*="display: flex"] {
  display: flex !important;
}

#chatbot-header {
  background: var(--tv-bg-primary);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--tv-border);
}

#chatbot-header strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--tv-text-primary);
}

#chatbot-close {
  background: none;
  border: none;
  color: var(--tv-text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

#chatbot-close:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--tv-text-primary);
}

#chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

#chatbot-messages::-webkit-scrollbar-track {
  background: var(--tv-bg-primary);
}

#chatbot-messages::-webkit-scrollbar-thumb {
  background: var(--tv-border);
  border-radius: 3px;
}

#chatbot-form {
  padding: 16px;
  background: var(--tv-bg-primary);
  border-top: 1px solid var(--tv-border);
  display: flex;
  gap: 8px;
}

#chatbot-input {
  flex: 1;
  background: var(--tv-bg-secondary);
  border: 1px solid var(--tv-border);
  color: var(--tv-text-primary);
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
}

#chatbot-input:focus {
  outline: none;
  border-color: var(--tv-blue);
}

#chatbot-form button {
  background: var(--tv-blue);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

#chatbot-form button:hover {
  background: var(--tv-blue-hover);
}

.chat-message {
  padding: 10px 14px;
  border-radius: 8px;
  max-width: 85%;
  font-size: 13px;
  line-height: 1.5;
}

.chat-message.user {
  background: var(--tv-blue);
  color: white;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message.assistant {
  background: var(--tv-bg-tertiary);
  color: var(--tv-text-primary);
  align-self: flex-start;
  border: 1px solid var(--tv-border);
}

/* Loading Spinner */
._dash-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

._dash-loading::after {
  content: "";
  width: 32px;
  height: 32px;
  border: 3px solid var(--tv-border);
  border-top-color: var(--tv-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    padding: 0 16px;
  }
  
  .container {
    padding: 16px;
  }
  
  .hero {
    padding: 24px;
  }
  
  .controls-row {
    flex-direction: column;
    align-items: stretch;
  }
  
  .input {
    width: 100%;
  }
  
  #chatbot-panel {
    width: calc(100vw - 32px);
    right: 16px;
    bottom: 80px;
  }
  
  .custom-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
  }
}

/* Plotly customization */
.js-plotly-plot .plotly .modebar {
  background: var(--tv-bg-tertiary) !important;
  border-radius: 4px;
}

.js-plotly-plot .plotly .modebar-btn path {
  fill: var(--tv-text-secondary) !important;
}

.js-plotly-plot .plotly .modebar-btn:hover path {
  fill: var(--tv-text-primary) !important;
}

.js-plotly-plot .plotly .modebar-btn.active path {
  fill: var(--tv-blue) !important;
}

#chatbot-send {
    min-height: 44px;  /* iOS touch target minimum */
    min-width: 44px;
}

#chatbot-input {
    min-height: 44px;
    font-size: 16px;  /* Prevents iOS zoom on focus */
}

.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));  /* Smaller min */
    gap: 1rem;  /* Reduce gap on mobile */
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;  /* Single column on small screens */
    }
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 20px;
    padding: 8px 16px;
    background: rgba(88, 166, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(88, 166, 255, 0.2);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid #58a6ff;
}

.user-name {
    color: #e6edf3;
    font-size: 14px;
    font-weight: 500;
}

.logout-btn {
    padding: 6px 12px;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: 6px;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s;
}

.logout-btn:hover {
    background: rgba(231, 76, 60, 0.2);
    border-color: #e74c3c;
}

@media (max-width: 768px) {
    .user-profile {
        padding: 6px 10px;
    }
    .user-name {
        display: none;
    }
    .user-avatar {
        width: 28px;
        height: 28px;
    }
}