/**
 * Full-Page Chat Interface Styles
 * Modern, professional design for AR Edilizia chatbot
 */

:root {
  /* Light Mode (Default) */
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --primary-light: #38bdf8;
  --surface: #ffffff;
  --surface-hover: #f8fafc;
  --surface-dark: #f1f5f9;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Dark Mode */
[data-theme="dark"] {
  --primary: #38bdf8;
  --primary-dark: #0ea5e9;
  --primary-light: #7dd3fc;
  --surface: #1e293b;
  --surface-hover: #334155;
  --surface-dark: #0f172a;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-light: #cbd5e1;
  --success: #34d399;
  --warning: #fbbf24;
  --error: #f87171;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
}

/* Auto Dark Mode - System Preference (Fallback) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary: #38bdf8;
    --primary-dark: #0ea5e9;
    --primary-light: #7dd3fc;
    --surface: #1e293b;
    --surface-hover: #334155;
    --surface-dark: #0f172a;
    --border: #334155;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;
    --success: #34d399;
    --warning: #fbbf24;
    --error: #f87171;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.chat-fullpage-container {
  display: flex;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--surface-dark);
  z-index: 1000;
  /* Prevent horizontal overflow */
  max-width: 100vw;
  box-sizing: border-box;
}

/* Professional Background Pattern */
.chat-fullpage-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
  background-image:
    linear-gradient(0deg, transparent 24%, rgba(14, 165, 233, .05) 25%, rgba(14, 165, 233, .05) 26%, transparent 27%, transparent 74%, rgba(14, 165, 233, .05) 75%, rgba(14, 165, 233, .05) 76%, transparent 77%, transparent),
    linear-gradient(90deg, transparent 24%, rgba(14, 165, 233, .05) 25%, rgba(14, 165, 233, .05) 26%, transparent 27%, transparent 74%, rgba(14, 165, 233, .05) 75%, rgba(14, 165, 233, .05) 76%, transparent 77%, transparent);
  background-size: 50px 50px;
}

/* Dark mode background pattern */
[data-theme="dark"] .chat-fullpage-container::before {
  opacity: 0.15;
}

/* Light mode specific enhancements */
[data-theme="light"] .chat-fullpage-container {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* Sidebar */
.chat-sidebar {
  width: 280px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow);
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
}

.company-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.company-logo h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.company-logo p {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

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

.nav-item.active {
  background: var(--primary);
  color: white;
}

.nav-item svg {
  flex-shrink: 0;
}

.chat-history {
  margin-top: 24px;
}

.chat-history h4 {
  padding: 8px 20px;
  margin: 0 0 8px 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#chat-sessions-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}

/* Main Chat Area */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* Header */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

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

/* Messages Area */
.messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
}

.messages-area::-webkit-scrollbar {
  width: 8px;
}

.messages-area::-webkit-scrollbar-track {
  background: transparent;
}

.messages-area::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.messages-area::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}

/* Welcome Section */
.welcome-section {
  max-width: 700px;
  margin: 60px auto;
  text-align: center;
}

.welcome-icon {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(14deg); }
  75% { transform: rotate(-14deg); }
}

.welcome-section h2 {
  margin: 0 0 16px 0;
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.welcome-section p {
  margin: 0 0 36px 0;
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
}

.welcome-section p strong {
  color: var(--primary);
  font-weight: 600;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  justify-content: center;
  max-width: 650px;
  margin: 0 auto;
}

.quick-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 16px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.quick-action-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.quick-action-btn:hover::before {
  transform: scaleY(1);
}

.quick-action-btn:hover {
  background: var(--surface-hover);
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(14, 165, 233, 0.2);
}

.quick-action-icon {
  font-size: 2rem;
  display: block;
}

.quick-action-text {
  display: block;
  text-align: center;
}

/* Messages */
.message {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  animation: messageSlideIn 0.3s ease;
}

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

.message.user {
  flex-direction: row-reverse;
  align-self: flex-end;
  max-width: 80%;
}

.message.assistant {
  align-self: flex-start;
  max-width: 80%;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
}

.message.assistant .message-avatar {
  background: var(--primary);
  color: white;
}

.message.user .message-avatar {
  background: var(--surface-dark);
  color: var(--text);
}

.message-content {
  max-width: 70%;
  padding: 16px 20px;
  border-radius: 16px;
  line-height: 1.6;
  font-size: 15px;
  word-wrap: break-word;
  word-break: break-word;
  white-space: pre-wrap;
  min-width: 0;
  overflow-wrap: break-word;
}

.message.assistant .message-content {
  background: var(--surface-dark);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.message.user .message-content {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

/* Message content formatting */
.message-content p.ar-paragraph {
  margin: 0 0 12px 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.message-content p.ar-paragraph:last-child {
  margin-bottom: 0;
}

/* Ensure proper text flow for longer messages */
.message-content {
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
}

.message-content strong {
  font-weight: 600;
}

.message-content em {
  font-style: italic;
}

/* Message links styling */
.message-link {
  color: #0ea5e9;
  text-decoration: underline;
  font-weight: 500;
  transition: all 0.2s ease;
  border-radius: 4px;
  padding: 1px 2px;
}

.message-link:hover {
  color: #0284c7;
  text-decoration: none;
  background: rgba(14, 165, 233, 0.1);
  padding: 2px 4px;
}

/* Dark theme link styling */
[data-theme="dark"] .message-link {
  color: #60a5fa;
}

[data-theme="dark"] .message-link:hover {
  color: #3b82f6;
  background: rgba(96, 165, 250, 0.1);
}

/* Lists in messages */
.message-content ul.ar-list,
.message-content ol.ar-list {
  margin: 12px 0;
  padding-left: 0;
  list-style: none;
}

.message-content ol.ar-list {
  counter-reset: message-counter;
  list-style: none;
  padding-left: 0;
  margin: 12px 0;
}

.message-content ul.ar-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 8px;
}

.message-content ul.ar-list li::before {
  content: "•";
  position: absolute;
  left: 8px;
  color: var(--primary);
  font-weight: bold;
  font-size: 16px;
}

.message.user .message-content ul.ar-list li::before {
  color: rgba(255, 255, 255, 0.95);
}

.message-content ol.ar-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 8px;
  counter-increment: message-counter;
  display: block;
}

.message-content ol.ar-list li::before {
  content: counter(message-counter) ".";
  position: absolute;
  left: 4px;
  color: var(--primary);
  font-weight: 600;
  min-width: 20px;
  text-align: right;
}

.message.user .message-content ol.ar-list li::before {
  color: rgba(255, 255, 255, 0.95);
}

.message-time {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
  padding: 0 4px;
}

/* Typing Indicator */
.typing-indicator-fullpage {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--surface-dark);
  border-top: 1px solid var(--border);
}

.typing-dots {
  display: flex;
  gap: 4px;
}

.typing-dots span {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: typingBounce 1.4s infinite;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-8px);
  }
}

.typing-indicator-fullpage p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  font-style: italic;
}

/* Input Area */
.chat-input-area {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
}

.input-container {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--surface-dark);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  transition: all 0.2s;
}

.input-container:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.input-action-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.input-action-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--primary);
}

.input-action-btn.recording {
  color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

.input-wrapper {
  flex: 1;
  min-width: 0;
}

#message-input {
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  resize: none;
  outline: none;
  max-height: 120px;
  line-height: 1.5;
}

#message-input::placeholder {
  color: var(--text-light);
}

.send-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--primary);
  color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

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

.send-btn:active {
  transform: scale(0.95);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.input-footer {
  margin-top: 8px;
  padding: 0 12px;
}

.hint-text {
  margin: 0;
  font-size: 12px;
  color: var(--text-light);
}

kbd {
  padding: 2px 6px;
  background: var(--surface-dark);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  font-family: monospace;
}

/* Responsive */
@media (max-width: 768px) {
  .chat-fullpage-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
  }

  .chat-sidebar {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transform: translateX(-100%);
    width: 280px;
  }

  .chat-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .chat-main {
    flex: 1;
    height: 100%;
    min-height: auto;
    overflow: hidden;
  }

  .messages-area {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .message-content {
    max-width: 85%;
  }

  .welcome-section {
    margin: 40px auto;
  }

  .suggestions-bar {
    padding: 12px 16px;
  }

  .suggestion-chip {
    font-size: 13px;
    padding: 8px 12px;
  }
}

/* ============================================
   ENHANCED LIGHT MODE STYLING
   ============================================ */

[data-theme="light"] .chat-sidebar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .chat-main {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

[data-theme="light"] .chat-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .message.assistant .message-content {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid rgba(14, 165, 233, 0.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .message.user .message-content {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
}

[data-theme="light"] .welcome-section h2 {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .quick-action-btn {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(14, 165, 233, 0.2);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .quick-action-btn:hover {
  background: rgba(14, 165, 233, 0.05);
  border-color: rgba(14, 165, 233, 0.4);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
  transform: translateY(-2px);
}

[data-theme="light"] .chat-input-area {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .input-container {
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

[data-theme="light"] .input-container:focus-within {
  border-color: rgba(14, 165, 233, 0.5);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

[data-theme="light"] .send-btn {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

[data-theme="light"] .send-btn:hover {
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.4);
  transform: translateY(-1px);
}

[data-theme="light"] .nav-item.active {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
  border-left: 3px solid #0ea5e9;
}

[data-theme="light"] .nav-item:hover {
  background: rgba(14, 165, 233, 0.05);
}

/* ============================================
   ENHANCED DARK MODE STYLING
   ============================================ */

[data-theme="dark"] .chat-sidebar {
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .chat-main {
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .chat-header {
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .message.assistant .message-content {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .message.user .message-content {
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

[data-theme="dark"] .welcome-section h2 {
  background: linear-gradient(135deg, #38bdf8 0%, #7dd3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Suggestion Buttons */
.suggestions-bar {
  padding: 16px 24px;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  scrollbar-width: thin;
}

.suggestions-bar::-webkit-scrollbar {
  height: 4px;
}

.suggestions-bar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.suggestion-chip {
  padding: 10px 16px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--surface-dark);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.suggestion-chip:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: white;
  border-color: #0ea5e9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.suggestion-chip:active {
  transform: translateY(0);
}

/* Dark theme for suggestions */
[data-theme="dark"] .suggestion-chip {
  background: rgba(51, 65, 85, 0.6);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--text);
}

[data-theme="dark"] .suggestion-chip:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

[data-theme="dark"] .quick-action-btn {
  background: rgba(51, 65, 85, 0.8);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

[data-theme="dark"] .quick-action-btn:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
  transform: translateY(-2px);
}

[data-theme="dark"] .chat-input-area {
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .input-container {
  background: rgba(51, 65, 85, 0.6);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

[data-theme="dark"] .input-container:focus-within {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

[data-theme="dark"] .send-btn {
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

[data-theme="dark"] .send-btn:hover {
  box-shadow: 0 6px 16px rgba(56, 189, 248, 0.4);
  transform: translateY(-1px);
}

[data-theme="dark"] .nav-item.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1) 0%, rgba(56, 189, 248, 0.05) 100%);
  border-left: 3px solid #38bdf8;
}

[data-theme="dark"] .nav-item:hover {
  background: rgba(56, 189, 248, 0.05);
}