/* Fantasy Football Analysis Bot — Design System CSS */

/* ============================================
   1. CSS VARIABLES
   ============================================ */
:root {
  /* Core Colors */
  --color-bg: #0B1220;
  --color-surface: #111827;
  --color-primary: #22C55E;
  --color-secondary: #F59E0B;
  --color-error: #EF4444;
  --color-success: #10B981;
  --color-info: #38BDF8;
  --color-divider: #1F2937;

  /* Text Colors */
  --color-text-primary: #E5E7EB;
  --color-text-secondary: #9CA3AF;

  /* Chat Bubbles */
  --color-bubble-user: linear-gradient(135deg, #0D2418, #0B1E14);
  --color-bubble-assistant: linear-gradient(135deg, #0F172A, #111827);
  --color-bubble-tool: #0F1A2A;
  --color-bubble-tool-border: #22C55E;

  /* Code & Tables */
  --color-code-bg: #181F2A;
  --color-code-text: #AEE6B7;
  --color-table-bg: #101624;
  --color-table-header-bg: #16213A;

  /* UI Elements */
  --color-chip-bg: #0F172A;
  --color-chip-border: #3B4251;
  --color-button-icon-bg: #0F172A;
  --color-typing-bg: #0F172A;

  /* Shadows & Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-light: 0 4px 16px rgba(0,0,0,0.25);
  --shadow-button: 0 2px 8px rgba(34,197,94,0.25);

  /* Typography */
  --font-family: 'Inter', 'Manrope', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Manrope', 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --font-size-heading: 22px;
  --font-size-small: 12px;
  --line-height: 1.5;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-medium: 0.25s ease-out;
  --anim-fade: fade-in 0.25s ease;
}

/* Light Theme */
[data-theme="light"] {
  --color-bg: #F4F6FA;
  --color-surface: #FFFFFF;
  --color-divider: #D1D5DB;
  --color-text-primary: #1E293B;
  --color-text-secondary: #64748B;
  --color-bubble-user: linear-gradient(135deg, #E6F9ED, #D1FADF);
  --color-bubble-assistant: linear-gradient(135deg, #F1F5F9, #E2E8F0);
  --color-bubble-tool: #F3F6FB;
  --color-code-bg: #F1F5F9;
  --color-code-text: #047857;
  --color-table-bg: #F9FAFB;
  --color-table-header-bg: #F1F5F9;
  --color-chip-bg: #F1F5F9;
  --color-chip-border: #D1D5DB;
  --color-button-icon-bg: #F1F5F9;
  --color-typing-bg: #FFFFFF;
  --shadow-light: 0 4px 16px rgba(34,197,94,0.08);
  --header-bg: linear-gradient(180deg, #F8FAFC 0%, #E2E8F0 100%);
}

/* ============================================
   2. BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text-primary);
  line-height: var(--line-height);
  font-size: var(--font-size-base);
  font-weight: 400;
  overflow-x: hidden;
  transition: background 0.2s, color 0.2s;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover, a:focus {
  text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-primary);
  letter-spacing: 0.2px;
}

h1, h2, h3 {
  font-size: var(--font-size-heading);
}

/* ============================================
   3. LAYOUT
   ============================================ */
.app-container {
  min-height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  border-left: 1px solid rgba(255,255,255,0.1);
  border-right: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.02);
  box-shadow: 0 0 40px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
}

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

.login-layout {
  min-height: 100vh;
  min-width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0B1220 0%, #0F172A 100%);
  background-image:
    radial-gradient(1200px 600px at 20% -10%, rgba(34,197,94,.15), transparent 60%),
    linear-gradient(135deg, #0B1220 0%, #0F172A 100%);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
}

/* ============================================
   4. HEADER
   ============================================ */
.header {
  background: var(--header-bg, linear-gradient(180deg, #0B1220 0%, rgba(11,18,32,0.9) 100%));
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-divider);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__inner,
.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.brand__logo {
  font-size: 20px;
  line-height: 1;
}

.brand__text {
  display: flex;
  flex-direction: column;
}

.brand__name {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.brand__subtitle {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* ============================================
   5. DEV MESSAGE
   ============================================ */
.dev-message {
  background: linear-gradient(90deg, #ffeeba, #fff3cd);
  color: #856404;
  font-weight: 600;
  text-align: center;
  padding: var(--spacing-md);
  border-bottom: 2px solid #ffd966;
  font-size: 15px;
  animation: slideDown 0.5s ease-out;
}

/* ============================================
   6. MAIN CONTENT
   ============================================ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  gap: var(--spacing-xl);
}

.container.chat-container {
  max-width: 680px;
  padding: var(--spacing-lg) var(--spacing-md) 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  min-height: 0;
  width: 100%;
  margin: 0 auto;
}

/* ============================================
   7. CHAT WINDOW
   ============================================ */
.chat-window {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-light);
  padding: var(--spacing-2xl) var(--spacing-lg);
  flex: 1;
  width: 100%;
  max-height: 65vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-bottom: 0;
  min-height: 400px;
  transition: background 0.2s;
  scrollbar-width: thin;
  scrollbar-color: var(--color-divider) transparent;
}

.chat-window::-webkit-scrollbar {
  width: 8px;
}

.chat-window::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
}

.chat-window::-webkit-scrollbar-thumb {
  background: var(--color-divider);
  border-radius: 4px;
  transition: background var(--transition-fast);
}

.chat-window::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* ============================================
   8. MESSAGES
   ============================================ */
.message {
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 80%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
  position: relative;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: background 0.2s;
  animation: slideInUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.message.user {
  align-self: flex-end;
  background: var(--color-bubble-user);
  text-align: right;
  border-bottom-right-radius: var(--radius-sm);
  border: 1px solid rgba(34,197,94,0.2);
  color: var(--color-text-primary);
}

.message.assistant {
  align-self: flex-start;
  background: var(--color-bubble-assistant);
  text-align: left;
  border-bottom-left-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.05);
  color: var(--color-text-primary);
}

.message.tool {
  align-self: flex-start;
  background: var(--color-bubble-tool);
  color: var(--color-text-secondary);
  font-style: italic;
  border-left: 4px solid var(--color-bubble-tool-border);
  border-bottom-left-radius: var(--radius-sm);
}

.message-content {
  word-break: break-word;
}

.timestamp {
  margin-top: var(--spacing-xs);
  font-size: 11px;
  color: var(--color-text-secondary);
  opacity: 0.7;
  align-self: flex-end;
}

.message.grouped .timestamp {
  display: none;
}

.message.grouped + .message:not(.grouped) {
  margin-top: var(--spacing-sm);
}

/* ============================================
   9. MARKDOWN CONTENT IN MESSAGES
   ============================================ */
.message.assistant .message-content {
  font-size: 1em;
  line-height: 1.7;
}

.message.assistant .message-content h1,
.message.assistant .message-content h2,
.message.assistant .message-content h3,
.message.assistant .message-content h4,
.message.assistant .message-content h5,
.message.assistant .message-content h6 {
  color: var(--color-text-primary);
  font-family: var(--font-family-heading);
  margin: 18px 0 10px 0;
  font-weight: 700;
  line-height: 1.2;
}

.message.assistant .message-content h1 { font-size: 1.5em; }
.message.assistant .message-content h2 { font-size: 1.3em; }
.message.assistant .message-content h3 { font-size: 1.15em; }
.message.assistant .message-content h4,
.message.assistant .message-content h5,
.message.assistant .message-content h6 { font-size: 1em; }

.message.assistant .message-content p {
  margin: 10px 0;
}

.message.assistant .message-content ul,
.message.assistant .message-content ol {
  margin: 10px 0 10px 24px;
  padding-left: 18px;
}

.message.assistant .message-content li {
  margin-bottom: 6px;
}

.message.assistant .message-content strong {
  font-weight: 700;
  color: var(--color-primary);
}

.message.assistant .message-content em {
  font-style: italic;
  color: var(--color-text-secondary);
}

.message.assistant .message-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(34,197,94,0.07);
  color: var(--color-text-secondary);
  margin: 12px 0;
  padding: 8px 16px;
  border-radius: 8px;
  font-style: italic;
}

.message.assistant .message-content pre,
.message.assistant .message-content code {
  font-family: 'Fira Mono', 'Menlo', 'Consolas', 'Monaco', monospace;
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border-radius: 8px;
  font-size: 0.97em;
  transition: background 0.2s, color 0.2s;
}

.message.assistant .message-content pre {
  padding: 12px 16px;
  margin: 12px 0;
  overflow-x: auto;
}

.message.assistant .message-content code {
  padding: 2px 6px;
}

.message.assistant .message-content pre code {
  padding: 0;
  background: transparent;
}

.message.assistant .message-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  background: var(--color-table-bg);
  border-radius: 10px;
  overflow: hidden;
  display: block;
  overflow-x: auto;
  transition: background 0.2s;
}

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

.message.assistant .message-content th {
  background: var(--color-table-header-bg);
  color: var(--color-primary);
  font-weight: 600;
  transition: background 0.2s;
}

.message.assistant .message-content td {
  background: var(--color-table-bg);
  transition: background 0.2s;
}

.message.assistant .message-content hr {
  border: none;
  border-top: 1.5px solid var(--color-divider);
  margin: 18px 0;
  opacity: 0.7;
}

.message.assistant .message-content input[type="checkbox"] {
  accent-color: var(--color-primary);
  margin-right: 6px;
  vertical-align: middle;
}

/* ============================================
   10. TOOL CARD
   ============================================ */
.tool-card {
  align-self: flex-start;
  border-left: 3px solid var(--color-bubble-tool-border);
  background: var(--color-bubble-tool);
  color: var(--color-text-secondary);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 13px;
  opacity: 0.9;
}

.tool-card__name {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ============================================
   11. COPY BUTTON
   ============================================ */
.copy-button {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 6px;
  padding: 6px 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--color-primary);
  opacity: 0;
  transition: all 0.2s ease;
  z-index: 10;
}

.message.assistant:hover .copy-button {
  opacity: 1;
}

.copy-button:hover {
  background: rgba(34, 197, 94, 0.2);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.copy-button:active {
  transform: translateY(0);
}

.copy-button.copied {
  background: rgba(34, 197, 94, 0.25);
  border-color: var(--color-primary);
  opacity: 1;
}

.copy-button svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

[data-theme="light"] .copy-button {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.25);
}

[data-theme="light"] .copy-button:hover {
  background: rgba(34, 197, 94, 0.15);
}

[data-theme="light"] .copy-button.copied {
  background: rgba(34, 197, 94, 0.2);
}

/* ============================================
   12. WELCOME MESSAGE
   ============================================ */
.welcome,
.welcome-message {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  color: var(--color-text-secondary);
}

.welcome-message h2 {
  color: var(--color-text-primary);
  font-size: 20px;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.welcome-message p {
  font-size: 15px;
  line-height: 1.5;
  opacity: 0.9;
  margin: 0;
}

/* ============================================
   13. INPUT AREA
   ============================================ */
.input-area {
  padding: var(--spacing-xl) var(--spacing-lg);
  background: rgba(17,24,39,0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-divider);
  width: 100%;
  position: sticky;
  bottom: 0;
  z-index: 2;
  box-sizing: border-box;
}

[data-theme="light"] .input-area {
  background: #F8FAFC;
}

.composer,
.input-composer {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
  width: 100%;
}

.input--textarea,
.input-textarea {
  flex: 1;
  width: 100%;
  background: var(--color-bg);
  color: var(--color-text-primary);
  border: 1.5px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
  resize: none;
  min-height: 48px;
  max-height: 120px;
  transition: all var(--transition-fast);
}

.input--textarea::placeholder,
.input-textarea::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.8;
}

.input--textarea:focus,
.input-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.15);
  outline: none;
}

/* ============================================
   14. BUTTONS
   ============================================ */
.button {
  --btn-bg: var(--color-primary);
  --btn-text: #0B1220;
  --btn-radius: var(--radius-md);
  --btn-pad-y: var(--spacing-md);
  --btn-pad-x: var(--spacing-lg);
  
  border: 0;
  border-radius: var(--btn-radius);
  color: var(--btn-text);
  background: linear-gradient(180deg, color-mix(in srgb, var(--btn-bg) 88%, #ffffff 12%), var(--btn-bg));
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  min-height: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-button);
  transition: all var(--transition-fast);
}

.button--primary {
  background: linear-gradient(135deg, var(--color-primary), #16A34A);
  color: #fff;
}

.button:hover,
.button--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(34,197,94,0.35);
}

.button:active {
  transform: scale(0.98);
}

.button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.button--ghost {
  --btn-bg: transparent;
  --btn-text: var(--color-text-primary);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-divider);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.button--ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--color-primary);
}

[data-theme="light"] .button--ghost {
  background: #F1F5F9;
}

.button--secondary {
  --btn-bg: var(--color-secondary);
  --btn-text: #111827;
}

.button--icon {
  --btn-pad-y: 0;
  --btn-pad-x: 0;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  background: var(--color-button-icon-bg);
  color: var(--color-text-primary);
  border: 1px solid var(--color-divider);
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.button--icon:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-primary);
}

/* ============================================
   15. QUICK ACTIONS & CHIPS
   ============================================ */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.chip {
  background: var(--color-chip-bg);
  color: var(--color-text-primary);
  border: 1px solid var(--color-chip-border);
  border-radius: 28px;
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: 14px;
  font-weight: 500;
  min-height: 48px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(4px);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  outline: none;
}

.chip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary), #16A34A);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.chip span {
  position: relative;
  z-index: 1;
}

.chip:hover,
.chip:focus {
  border-color: var(--color-primary);
  transform: translateY(-1px) scale(1.05);
  box-shadow: 0 4px 12px rgba(34,197,94,0.25);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.chip:hover::before {
  opacity: 0.1;
}

.chip:active {
  transform: scale(0.98);
}

/* ============================================
   16. TYPING INDICATOR
   ============================================ */
.typing-indicator-wrapper {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  display: none;
  pointer-events: none;
}

.typing-indicator {
  align-self: flex-start;
  background: var(--color-typing-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  display: inline-flex;
  gap: var(--spacing-xs);
  align-items: center;
  margin-bottom: var(--spacing-sm);
  width: fit-content;
  box-shadow: var(--shadow-light);
  border: 1px solid rgba(255,255,255,0.1);
  transition: background 0.2s;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.7;
  animation: typing 1.4s infinite ease-in-out;
  display: inline-block;
}

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

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

/* ============================================
   17. LOGIN
   ============================================ */
.login-card {
  padding: 40px 32px 36px;
  text-align: center;
  background: rgba(17,24,39,0.95);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2), 0 2px 8px rgba(0,0,0,0.1);
  max-width: 420px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeInUp 0.35s ease-out;
  border: 1px solid rgba(34,197,94,0.1);
}

.login-card h1 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
}

.login-card p,
.login-card .login-tagline {
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-xl);
  line-height: 1.4;
}

.login-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #22C55E, #16A34A);
  color: #fff;
  box-shadow: var(--shadow-button);
  margin-top: var(--spacing-lg);
  width: 100%;
  max-width: 300px;
  border: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  min-height: 48px;
}

.login-btn:hover,
.login-btn:focus {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(34,197,94,0.4);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   18. UTILITY CLASSES
   ============================================ */
.hidden {
  display: none !important;
}

/* ============================================
   19. ANIMATIONS
   ============================================ */
@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes typing {
  0%, 80%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  40% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

/* ============================================
   20. RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  .app-container {
    border-left: none;
    border-right: none;
    box-shadow: none;
    background: transparent;
  }

  .header {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .header__inner,
  .header__content {
    padding: 0 var(--spacing-sm);
  }

  .header__actions {
    gap: var(--spacing-sm);
  }

  .header__actions .button--ghost {
    font-size: 13px;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 36px;
  }

  .brand__name {
    font-size: 16px;
  }

  .brand__subtitle {
    font-size: 12px;
  }

  .main-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .container.chat-container {
    max-width: 100vw;
    padding: var(--spacing-md) var(--spacing-sm) 0;
  }

  .chat-window {
    padding: var(--spacing-lg) var(--spacing-md);
    max-height: 60vh;
  }

  .message {
    max-width: 90%;
    padding: var(--spacing-lg);
    font-size: 14px;
  }

  .message.assistant .message-content table {
    font-size: 0.95em;
  }

  .quick-actions {
    gap: var(--spacing-md);
  }

  .chip {
    font-size: 13px;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 44px;
    border-radius: 22px;
  }

  .input-area {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .input--textarea,
  .input-textarea {
    padding: var(--spacing-md);
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .header__inner,
  .header__content {
    padding: 0 var(--spacing-xs);
  }

  .header__actions {
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: flex-end;
  }

  .header__actions .button--ghost {
    font-size: 12px;
    padding: 6px var(--spacing-sm);
    min-height: 32px;
  }

  .brand__name {
    font-size: 14px;
  }

  .brand__subtitle {
    font-size: 10px;
  }

  .main-content {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .chat-window {
    padding: var(--spacing-md);
    min-height: 300px;
  }

  .message {
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 95%;
  }

  .quick-actions {
    gap: var(--spacing-sm);
  }

  .chip {
    font-size: 12px;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 40px;
    border-radius: 20px;
  }

  .input-area {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .login-card {
    padding: var(--spacing-xl) var(--spacing-lg);
    margin: var(--spacing-md);
  }

  .typing-indicator-wrapper {
    bottom: 80px;
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    transform: none;
  }

  .typing-indicator-wrapper .typing-indicator {
    max-width: 85%;
  }
}

/* ============================================
   21. ACCESSIBILITY
   ============================================ */
.input--textarea:focus,
.input-textarea:focus,
.button:focus,
.login-btn:focus,
.chip:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .button,
  .chip,
  .message {
    border-width: 2px;
  }
}

/* ============================================
   22. PRINT STYLES
   ============================================ */
@media print {
  .header,
  .input-area,
  .quick-actions,
  .button,
  .typing-indicator-wrapper {
    display: none !important;
  }

  .chat-window {
    max-height: none;
    overflow: visible;
    box-shadow: none;
    border: 1px solid #000;
  }

  .message {
    page-break-inside: avoid;
  }
}