/* ========== GLOBAL VARIABLES ========== */
:root {
  --insytra-bg: #f9f9f9;
  --insytra-sidebar: #ffffff;
  --insytra-border: #e5e5e5;
  --insytra-hover: #f0f0f0;
  --insytra-primary: #4a6cf7;
  --insytra-text: #1e1e1e;
  --insytra-secondary: #666666;
  --insytra-user-msg: #f2f6ff;
  --insytra-ai-msg: #ffffff;
  --logo-color: #1e1e1e;
  --code-bg: #f6f8fa;
  --code-border: #e1e4e8;
  --code-comment: #6a737d;
  --code-keyword: #d73a49;
  --code-string: #032f62;
  --code-function: #6f42c1;
  --code-number: #005cc5;
  --code-operator: #d73a49;
  --code-variable: #e36209;
}

html[data-theme="dark"] {
  --insytra-bg: #1a1a1a;
  --insytra-sidebar: #2a2a2a;
  --insytra-border: #3a3a3a;
  --insytra-hover: #3a3a3a;
  --insytra-primary: #6b8aff;
  --insytra-text: #ffffff;
  --insytra-secondary: #a0a0a0;
  --insytra-user-msg: #2a3a5a;
  --insytra-ai-msg: #2a2a2a;
  --logo-color: #ffffff;
  --code-bg: #1e1e1e;
  --code-border: #3a3a3a;
  --code-comment: #6a9955;
  --code-keyword: #569cd6;
  --code-string: #ce9178;
  --code-function: #dcdcaa;
  --code-number: #b5cea8;
  --code-operator: #d4d4d4;
  --code-variable: #9cdcfe;
}

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

body {
  background: var(--insytra-bg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  margin: 0;
  height: 100vh;
  overflow: hidden;
  transition: background 0.2s;
  position: relative;
  color: var(--insytra-text);
}

/* ========== TOAST ========== */
/* ========== TOAST ========== */
#toast {
  position: fixed;
  top: 20px;
  right: 20px;
  left: auto;
  transform: none;
  background: var(--insytra-bg);
  color: var(--insytra-text);
  padding: 12px 24px;
  border-radius: 12px;
  border: 1px solid var(--insytra-border);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 2000;
  font-size: 14px;
  transition: opacity 0.2s;
  opacity: 0;
  pointer-events: none;
  max-width: 90%;
  text-align: center;
  word-break: break-word;
}

#toast.show { 
  opacity: 1; 
}

/* Toast types with !important to ensure they override */
#toast.success,
div#toast.success,
.toast.success {
  background: hsl(160, 93%, 35%) !important;
  color: white !important;
  border-color: hsl(161, 94%, 30%) !important;
}

#toast.error,
div#toast.error,
.toast.error {
  background: #ef4444 !important;
  color: white !important;
  border-color: #dc2626 !important;
}

#toast.info,
div#toast.info,
.toast.info {
  background: var(--insytra-primary) !important;
  color: white !important;
  border-color: var(--insytra-primary) !important;
}

/* Dark theme ke liye */
html[data-theme="dark"] #toast.success,
html[data-theme="dark"] div#toast.success {
  background: #10b981 !important;
  color: white !important;
}

html[data-theme="dark"] #toast.error,
html[data-theme="dark"] div#toast.error {
  background: #ef4444 !important;
  color: white !important;
}

html[data-theme="dark"] #toast.info,
html[data-theme="dark"] div#toast.info {
  background: var(--insytra-primary) !important;
  color: white !important;
}

/* ========== POWERED BY FOOTER ========== */
.powered-by {
  position: fixed;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 12px;
  color: var(--insytra-secondary);
  z-index: 100;
  pointer-events: none;
  padding: 4px;
}

.powered-by a {
  color: var(--insytra-secondary);
  text-decoration: none;
  transition: color 0.2s;
  pointer-events: auto;
}

.powered-by a:hover {
  color: var(--insytra-primary);
  text-decoration: underline;
}

/* ========== LOGIN PAGE ========== */
#loginPage {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 16px;
}

#loginPage.hidden { display: none; }

.login-card {
  background: var(--insytra-sidebar);
  border: 1px solid var(--insytra-border);
  border-radius: 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 400px;
  padding: 32px 24px;
  margin-bottom: 40px;
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.login-logo svg {
  width: 40px;
  height: 40px;
  color: var(--logo-color);
}

.login-logo span {
  font-size: 28px;
  font-weight: 700;
  color: var(--insytra-text);
  letter-spacing: -0.5px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 24px;
  margin: 0 0 8px;
  color: var(--insytra-text);
}

.login-header p {
  color: var(--insytra-secondary);
  font-size: 14px;
  margin: 0;
}

.form-group { margin-bottom: 24px; }
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--insytra-text);
}
.form-group input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-bg);
  color: var(--insytra-text);
  font-size: 16px;
  transition: border-color 0.2s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--insytra-primary);
}

.otp-row { display: flex; gap: 8px; }
.otp-row input { flex: 1; }

.btn.primary {
  background: var(--insytra-primary);
  border: none;
  color: white;
  padding: 16px 18px;
  font-size: 16px;
  border-radius: 16px;
  cursor: pointer;
  font-weight: 500;
}
.btn.primary:hover:not(:disabled) { opacity: 0.9; }
.btn.primary:disabled { opacity: 0.5; cursor: not-allowed; }
#sendOtpBtn { padding: 0 24px; height: 54px; }

.timer-text {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--insytra-secondary);
}

.error-message {
  color: #ef4444;
  font-size: 13px;
  margin-top: 4px;
  display: none;
}
.error-message.visible { display: block; }

.theme-corner {
  position: fixed;
  bottom: 60px;
  right: 20px;
  z-index: 100;
}
.theme-corner .icon-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-sidebar);
  color: var(--insytra-text);
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Hide theme corner on chat page */
#chatPage .theme-corner {
  display: none;
}

/* ========== CHAT PAGE ========== */
#chatPage { 
  height: 100vh; 
  width: 100vw; 
  position: relative;
  display: flex;
  flex-direction: column;
}
#chatPage.hidden { display: none; }

.insytra-app {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* Left sidebar - FIXED hover actions */
.insytra-sidebar {
  width: 300px;
  background: var(--insytra-sidebar);
  border-right: 1px solid var(--insytra-border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
  flex-shrink: 0;
}

.branding {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 16px 12px;
  border-bottom: 1px solid var(--insytra-border);
}
.brand-logo { width: 32px; height: 32px; color: var(--logo-color); }
.brand-logo svg { width: 100%; height: 100%; fill: currentColor; }
.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--insytra-text);
  letter-spacing: -0.5px;
}

.new-chat-btn {
  margin: 16px 16px 12px;
  padding: 12px 16px;
  background: var(--insytra-primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.new-chat-btn:hover { opacity: 0.9; }

.history-container {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.history-item-wrapper {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 2px 0;
  position: relative;
  border-radius: 8px;
}

.history-item {
  flex: 1;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--insytra-text);
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.history-item:hover { background: var(--insytra-hover); }
.history-item.active { background: var(--insytra-hover); font-weight: 500; }

.chat-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s;
  position: absolute;
  right: 4px;
  background: var(--insytra-sidebar);
  padding: 2px;
  border-radius: 6px;
}

.history-item-wrapper:hover .chat-actions {
  opacity: 1;
}

.chat-action-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-sidebar);
  color: var(--insytra-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  padding: 0;
  transition: all 0.2s;
}

.chat-action-btn:hover {
  background: var(--insytra-hover);
  color: var(--insytra-primary);
  border-color: var(--insytra-primary);
}

.chat-action-btn.delete:hover {
  color: #ef4444;
  border-color: #ef4444;
}

.history-pagination {
  padding: 12px 16px;
  border-top: 1px solid var(--insytra-border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-wrap: wrap;
}
.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 6px;
  border-radius: 8px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-sidebar);
  color: var(--insytra-text);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-btn:hover:not(:disabled) { background: var(--insytra-hover); }
.page-btn.active { background: var(--insytra-primary); color: white; border-color: var(--insytra-primary); }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.page-dots { color: var(--insytra-secondary); padding: 0 4px; }

/* Main chat area - FIXED message layout */
.insytra-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--insytra-bg);
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.chat-header {
  height: 64px;
  border-bottom: 1px solid var(--insytra-border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  justify-content: space-between;
  background: var(--insytra-sidebar);
  position: relative;
  flex-shrink: 0;
}
.header-left { display: flex; align-items: center; gap: 8px; }
.menu-toggle { display: none; background: none; border: none; color: var(--insytra-text); font-size: 20px; cursor: pointer; padding: 8px; }

/* Model selector */
.model-selector { position: relative; }
.model-selector-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px 6px 6px;
  background: transparent;
  border: 1px solid var(--insytra-border);
  color: var(--insytra-text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 20px;
}
.model-selector-btn:hover { background: var(--insytra-hover); }
.model-selector-btn .arrow { font-size: 12px; color: var(--insytra-secondary); margin-left: 2px; }

.model-logo-small {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--insytra-primary);
}
.model-logo-small svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.model-dropdown {
  position: absolute;
  top: 120%;
  left: 0;
  min-width: 240px;
  background: var(--insytra-sidebar);
  border: 1px solid var(--insytra-border);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  z-index: 1000;
  display: none;
  overflow: hidden;
}
.model-dropdown.show { display: block; }
.model-option {
  width: 100%;
  padding: 12px 16px;
  text-align: left;
  background: none;
  border: none;
  color: var(--insytra-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  border-bottom: 1px solid var(--insytra-border);
}
.model-option:last-child { border-bottom: none; }
.model-option:hover { background: var(--insytra-hover); }
.model-option.active { background: var(--insytra-primary); color: white; }
.model-option.active .model-description { color: rgba(255,255,255,0.9); }

.model-logo {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--insytra-primary);
  flex-shrink: 0;
}
.model-logo svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}
.model-option.active .model-logo { color: white; }

.model-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.model-name {
  font-weight: 600;
}
.model-description {
  font-size: 11px;
  color: var(--insytra-secondary);
}

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

/* User info */
.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px 4px 4px;
  border-radius: 30px;
  transition: background 0.2s;
  position: relative;
}
.user-info:hover { background: var(--insytra-hover); }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--insytra-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
}
.user-name { font-size: 14px; font-weight: 500; color: var(--insytra-text); }

/* Logout dropdown */
.user-dropdown {
  position: absolute;
  top: 120%;
  right: 0;
  min-width: 150px;
  background: var(--insytra-sidebar);
  border: 1px solid var(--insytra-border);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  z-index: 1000;
  display: none;
  overflow: hidden;
}
.user-dropdown.show { display: block; }
.logout-btn {
  width: 100%;
  padding: 12px 16px;
  text-align: left;
  background: none;
  border: none;
  color: var(--insytra-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}
.logout-btn:hover { background: var(--insytra-hover); color: #ef4444; }

/* Messages Container - FIXED layout */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  display: flex;
  flex-direction: column;
}

/* Message wrapper for alternating backgrounds */
.message-wrapper {
  width: 100%;
  padding: 20px 0;
  border-bottom: 1px solid var(--insytra-border);
}

.message-wrapper.user {
  background: var(--insytra-user-msg);
}

.message-wrapper.assistant {
  background: var(--insytra-ai-msg);
}

.message {
  display: flex;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  padding: 0 20px;
}

.message.user { 
  flex-direction: row;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}
.message.user .message-avatar { background: var(--insytra-primary); color: white; }
.message.assistant .message-avatar { background: transparent; color: var(--logo-color); }
.message.assistant .message-avatar svg { width: 24px; height: 24px; fill: currentColor; }

/* ========== AI RESPONSE HIGHLIGHTING ========== */
.message-content {
  flex: 1;
  padding: 8px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--insytra-text);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.message-content p {
  margin: 0 0 12px 0;
}

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

.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4 {
  margin: 16px 0 8px 0;
  font-weight: 600;
  color: var(--insytra-text);
}

.message-content h1 { font-size: 24px; }
.message-content h2 { font-size: 20px; }
.message-content h3 { font-size: 18px; }
.message-content h4 { font-size: 16px; }

.message-content ul,
.message-content ol {
  margin: 8px 0 12px 20px;
}

.message-content li {
  margin: 4px 0;
}

.message-content blockquote {
  margin: 12px 0;
  padding: 8px 16px;
  border-left: 4px solid var(--insytra-primary);
  background: var(--insytra-sidebar);
  border-radius: 0 8px 8px 0;
  color: var(--insytra-secondary);
}

.message-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
}

.message-content th,
.message-content td {
  border: 1px solid var(--insytra-border);
  padding: 8px 12px;
  text-align: left;
}

.message-content th {
  background: var(--insytra-sidebar);
  font-weight: 600;
}

.message-content tr:nth-child(even) {
  background: var(--insytra-sidebar);
}

/* Code blocks with syntax highlighting */
.message-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin: 16px 0;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
  position: relative;
}

/* Code block language indicator */
.message-content pre::before {
  content: attr(data-language);
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 11px;
  color: var(--insytra-secondary);
  background: var(--insytra-sidebar);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--insytra-border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

/* Inline code */
.message-content code:not(pre code) {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 13px;
  background: var(--insytra-sidebar);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--insytra-border);
  color: var(--insytra-primary);
}

/* Syntax highlighting for light theme */
.message-content .token.comment,
.message-content .token.prolog,
.message-content .token.doctype,
.message-content .token.cdata {
  color: var(--code-comment);
}

.message-content .token.punctuation {
  color: var(--insytra-text);
}

.message-content .token.property,
.message-content .token.tag,
.message-content .token.boolean,
.message-content .token.number,
.message-content .token.constant,
.message-content .token.symbol,
.message-content .token.deleted {
  color: var(--code-number);
}

.message-content .token.selector,
.message-content .token.attr-name,
.message-content .token.string,
.message-content .token.char,
.message-content .token.builtin,
.message-content .token.inserted {
  color: var(--code-string);
}

.message-content .token.operator,
.message-content .token.entity,
.message-content .token.url,
.message-content .language-css .token.string,
.message-content .style .token.string {
  color: var(--code-operator);
}

.message-content .token.atrule,
.message-content .token.attr-value,
.message-content .token.keyword {
  color: var(--code-keyword);
}

.message-content .token.function,
.message-content .token.class-name {
  color: var(--code-function);
}

.message-content .token.regex,
.message-content .token.important,
.message-content .token.variable {
  color: var(--code-variable);
}

/* JSON highlighting */
.message-content .language-json .token.property {
  color: var(--code-keyword);
}

.message-content .language-json .token.string {
  color: var(--code-string);
}

.message-content .language-json .token.number {
  color: var(--code-number);
}

.message-content .language-json .token.boolean {
  color: var(--code-number);
}

/* JavaScript/TypeScript highlighting */
.message-content .language-javascript .token.keyword,
.message-content .language-typescript .token.keyword {
  color: var(--code-keyword);
}

.message-content .language-javascript .token.string,
.message-content .language-typescript .token.string {
  color: var(--code-string);
}

.message-content .language-javascript .token.function,
.message-content .language-typescript .token.function {
  color: var(--code-function);
}

/* Python highlighting */
.message-content .language-python .token.keyword {
  color: var(--code-keyword);
}

.message-content .language-python .token.string {
  color: var(--code-string);
}

.message-content .language-python .token.function {
  color: var(--code-function);
}

/* SQL highlighting */
.message-content .language-sql .token.keyword {
  color: var(--code-keyword);
}

.message-content .language-sql .token.string {
  color: var(--code-string);
}

.message-content .language-sql .token.function {
  color: var(--code-function);
}

/* Bash/Shell highlighting */
.message-content .language-bash .token.function,
.message-content .language-shell .token.function {
  color: var(--code-function);
}

.message-content .language-bash .token.string,
.message-content .language-shell .token.string {
  color: var(--code-string);
}

/* Welcome Screen */
.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 20px;
}

.welcome-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--insytra-text);
  margin: 0 0 16px 0;
}

.welcome-subtitle {
  color: var(--insytra-secondary);
  font-size: 16px;
  margin-bottom: 32px;
}

.suggested-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}

.topic-chip {
  padding: 10px 16px;
  border-radius: 30px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-sidebar);
  color: var(--insytra-text);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.topic-chip:hover {
  background: var(--insytra-hover);
  border-color: var(--insytra-primary);
}

/* Input area */
.input-area {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 20px 30px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  background: linear-gradient(to bottom, transparent, var(--insytra-bg) 30%);
  z-index: 10;
}

.input-wrapper {
  background: var(--insytra-sidebar);
  border: 1px solid var(--insytra-border);
  border-radius: 24px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.chat-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--insytra-text);
  font-size: 15px;
  padding: 10px 8px;
  max-height: 120px;
  resize: none;
  outline: none;
  font-family: inherit;
  line-height: 1.5;
}
.chat-input::placeholder { color: var(--insytra-secondary); }

.send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--insytra-primary);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  padding: 0;
  margin: 0;
  line-height: 1;
  transition: opacity 0.2s;
}
.send-btn:hover:not(:disabled) { opacity: 0.9; }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.disclaimer {
  font-size: 11px;
  color: var(--insytra-secondary);
  text-align: center;
  margin-top: 8px;
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 0;
}
.typing-dot {
  width: 8px;
  height: 8px;
  background: var(--insytra-secondary);
  border-radius: 50%;
  animation: typing 1.4s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-8px); opacity: 1; }
}

/* Edit chat modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal.show { display: flex; }

.modal-content {
  background: var(--insytra-sidebar);
  border: 1px solid var(--insytra-border);
  border-radius: 24px;
  padding: 24px;
  width: 100%;
  max-width: 400px;
}

.modal-content h3 {
  margin: 0 0 16px 0;
  color: var(--insytra-text);
  font-size: 20px;
}

.modal-content input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-bg);
  color: var(--insytra-text);
  font-size: 16px;
  margin-bottom: 20px;
}

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

.modal-actions button {
  padding: 12px 24px;
  border-radius: 12px;
  border: 1px solid var(--insytra-border);
  background: var(--insytra-sidebar);
  color: var(--insytra-text);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}

.modal-actions button.primary {
  background: var(--insytra-primary);
  color: white;
  border: none;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .insytra-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 2px 0 20px rgba(0,0,0,0.2);
    width: 85%;
    max-width: 320px;
  }
  .insytra-sidebar.mobile-open { transform: translateX(0); }
  .menu-toggle { display: block; }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
  }
  .sidebar-overlay.active { display: block; }
  .user-name { display: none; }
  
  .messages-container {
    padding-bottom: 20px;
  }
  
  .message-wrapper {
    padding: 16px 0;
  }
  
  .message {
    padding: 0 16px;
    gap: 12px;
  }
  
  .message-content {
    font-size: 14px;
  }
  
  .message-content pre {
    padding: 12px;
    font-size: 12px;
  }
  
  .message-content pre::before {
    font-size: 10px;
    padding: 2px 6px;
  }
  
  .input-area {
    padding: 16px 16px 20px;
  }
  
  .chat-input {
    font-size: 14px;
    padding: 8px 6px;
  }
  
  .send-btn {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  
  .welcome-title {
    font-size: 24px;
  }
  
  .topic-chip {
    padding: 8px 12px;
    font-size: 12px;
  }
  
  .powered-by {
    bottom: 8px;
    font-size: 11px;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .model-selector-btn span:not(.model-logo-small):not(.arrow) {
    display: none;
  }
  
  .model-selector-btn {
    padding: 6px 8px;
  }
  
  .message {
    gap: 8px;
  }
  
  .message-avatar {
    width: 30px;
    height: 30px;
    font-size: 12px;
  }
  
  .message.assistant .message-avatar svg {
    width: 20px;
    height: 20px;
  }
  
  .welcome-title {
    font-size: 20px;
  }
  
  .message-content pre {
    padding: 10px;
    font-size: 11px;
  }
}

/* Tablet devices */
@media (min-width: 769px) and (max-width: 1024px) {
  .insytra-sidebar {
    width: 280px;
  }
  
  .message {
    max-width: 800px;
  }
  
  .input-area {
    max-width: 800px;
  }
}