:root {
  --pink-50: #fff1f5;
  --pink-100: #ffe4ef;
  --pink-200: #ffcce0;
  --pink-300: #ffa8c8;
  --pink-400: #ff69b4;
  --pink-500: #ff1493;
  --pink-600: #e91082;
  --pink-700: #d40e74;
  --pink-800: #b80c65;
  --pink-900: #9a0a55;
  --pink-neon: #ff3ec4;
  --white: #ffffff;
  --shadow: 0 1px 3px rgba(255,20,147,0.15), 0 1px 2px rgba(255,20,147,0.08);
  --shadow-lg: 0 10px 25px rgba(255,20,147,0.2), 0 4px 10px rgba(255,20,147,0.1);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(180deg, var(--pink-50) 0%, var(--pink-100) 100%);
  color: var(--pink-900);
  line-height: 1.6;
  min-height: 100vh;
  padding-left: 240px;
}

a { color: var(--pink-500); text-decoration: none; }
a:hover { color: var(--pink-700); text-decoration: underline; }

/* Navigation - Sidebar */
nav {
  background: linear-gradient(180deg, var(--pink-600), var(--pink-500), var(--pink-600));
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  z-index: 100;
  box-shadow: 4px 0 20px rgba(255,20,147,0.2);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.nav-inner {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 1.5rem 1rem;
  gap: 0.5rem;
  flex: 1;
}

.nav-brand {
  color: var(--white);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  padding: 0.5rem 0.8rem;
  text-decoration: none;
  white-space: nowrap;
  border-radius: 8px;
}

.nav-brand:hover {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}

.nav-links a {
  color: var(--pink-100);
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.2s;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--pink-800);
  color: var(--white);
  text-decoration: none;
  box-shadow: 0 0 10px rgba(255,62,196,0.3);
}

.nav-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

/* Menu Toggle (Hamburger) - mobile only */
.menu-toggle {
  background: var(--pink-800);
  border: 2px solid var(--pink-400);
  color: var(--white);
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.2s, border-color 0.2s;
  line-height: 1;
  display: none;
  position: fixed;
  top: 0.8rem;
  left: 0.8rem;
  z-index: 10001;
}

.menu-toggle:hover {
  background: var(--pink-900);
  border-color: var(--pink-300);
}

/* Dark mode toggle in sidebar */
.dark-toggle {
  background: rgba(0,0,0,0.2);
  border: 2px solid rgba(255,255,255,0.2);
  color: var(--white);
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, border-color 0.2s;
  line-height: 1;
  align-self: stretch;
}

.dark-toggle:hover {
  background: rgba(0,0,0,0.3);
  border-color: rgba(255,255,255,0.3);
}

/* Mobile responsive - sidebar becomes overlay */
@media (max-width: 900px) {
  nav {
    width: 260px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 9999;
  }

  nav.sidebar-open {
    transform: translateX(0);
  }

  .menu-toggle {
    display: block;
  }

  .nav-links a {
    padding: 0.7rem 0.8rem;
    font-size: 0.95rem;
  }

  body {
    padding-left: 0;
  }

  .hero {
    padding-left: 3.5rem;
  }

  .container {
    padding-left: 1rem;
  }
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600), var(--pink-700));
  color: var(--white);
  text-align: center;
  padding: 4rem 2rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
  animation: heroShine 8s ease-in-out infinite;
}

@keyframes heroShine {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20%, 10%); }
}

.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 0.5rem; position: relative; }
.hero p { font-size: 1.2rem; opacity: 0.95; max-width: 600px; margin: 0 auto; position: relative; }

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--white);
  border-radius: 16px;
  padding: 1.8rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-300);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(255,20,147,0.25);
  border-color: var(--pink-400);
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-link:hover .card {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(255,20,147,0.25);
  border-color: var(--pink-400);
}

.card h3 {
  color: var(--pink-600);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.card p { color: var(--pink-800); font-size: 0.95rem; }

/* Section heading */
h2.section-title {
  font-size: 1.9rem;
  color: var(--pink-700);
  margin: 2.5rem 0 0.8rem;
  border-bottom: 3px solid var(--pink-400);
  padding-bottom: 0.5rem;
}

/* Glossary table */
.glossary-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
}

.glossary-table thead {
  background: linear-gradient(90deg, var(--pink-500), var(--pink-600));
  color: var(--white);
}

.glossary-table th,
.glossary-table td {
  padding: 0.9rem 1.2rem;
  text-align: left;
  font-size: 0.95rem;
}

.glossary-table tbody tr { border-bottom: 1px solid var(--pink-200); }
.glossary-table tbody tr:hover { background: var(--pink-100); }
.glossary-table td:first-child { font-weight: 700; color: var(--pink-600); white-space: nowrap; }

/* Definition card */
.def-card {
  background: var(--white);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-lg);
  border-left: 5px solid var(--pink-500);
  border: 2px solid var(--pink-200);
  transition: border-color 0.2s;
}

.def-card:hover {
  border-color: var(--pink-400);
}

.def-card h3 {
  color: var(--pink-700);
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
}

.def-card .category {
  display: inline-block;
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.def-card p { color: var(--pink-900); font-size: 0.95rem; }

/* Example block */
.example {
  background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
  border-radius: 10px;
  padding: 0.8rem 1rem;
  margin-top: 0.5rem;
  font-family: 'Courier New', monospace;
  font-size: 0.88rem;
  color: var(--pink-900);
  border: 1px solid var(--pink-300);
}

.example strong { font-family: 'Segoe UI', system-ui, sans-serif; color: var(--pink-700); }

/* Use-case grid */
.use-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.use-card {
  background: var(--white);
  border-radius: 16px;
  padding: 1.8rem;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 2px solid var(--pink-200);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.use-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(255,20,147,0.25);
  border-color: var(--pink-400);
}

.use-card .icon { font-size: 2.8rem; margin-bottom: 0.5rem; }
.use-card h3 { color: var(--pink-700); margin-bottom: 0.4rem; }
.use-card p { color: var(--pink-900); font-size: 0.9rem; margin-bottom: 0.8rem; }

/* Prompt examples */
.prompt-block {
  background: var(--white);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
  transition: border-color 0.2s;
}

.prompt-block:hover {
  border-color: var(--pink-400);
}

.prompt-block h3 {
  color: var(--pink-700);
  margin-bottom: 0.5rem;
}

.prompt-block .label {
  font-weight: 700;
  color: var(--pink-500);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Footer */
footer {
  background: linear-gradient(90deg, var(--pink-700), var(--pink-600), var(--pink-700));
  color: var(--pink-200);
  text-align: center;
  padding: 1.8rem;
  font-size: 0.9rem;
  box-shadow: 0 -4px 20px rgba(255,20,147,0.3);
  margin-left: 240px;
}

@media (max-width: 900px) {
  footer {
    margin-left: 0;
  }
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --bg-table: #1a1a2e;
  --bg-table-head: #0f3460;
  --bg-table-hover: #1a1a3e;
  --bg-example: #1a1a3e;
  --bg-badge: #e91082;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0b0;
  --text-heading: #ffb6d9;
  --text-heading-strong: #ff69b4;
  --text-link: #ff69b4;
  --text-link-hover: #ffa8c8;
  --text-nav: #ffcce0;
  --text-nav-hover: #ffffff;
  --text-footer: #ffa8c8;
  --border-primary: #2a2a4a;
  --border-secondary: #3a3a5a;
  --border-accent: #ff69b4;
  --shadow-color: rgba(255,20,147,0.15);
  --shadow-lg-color: rgba(255,20,147,0.2);
  --hero-overlay: rgba(13,13,13,0.3);
}

[data-theme="dark"] body {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  color: var(--text-primary);
}

[data-theme="dark"] a {
  color: var(--text-link);
}

[data-theme="dark"] a:hover {
  color: var(--text-link-hover);
}

[data-theme="dark"] nav {
  background: linear-gradient(180deg, #0f3460, #1a1a3e, #0f3460);
  box-shadow: 4px 0 20px rgba(255,20,147,0.1);
}

[data-theme="dark"] .nav-links a {
  color: var(--text-nav);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a.active {
  background: #0f3460;
  color: var(--text-nav-hover);
  box-shadow: 0 0 10px rgba(255,62,196,0.15);
}

/* Dark mode sidebar toggle buttons */
[data-theme="dark"] .menu-toggle {
  background: #0f3460;
  border-color: var(--pink-500);
}

[data-theme="dark"] .menu-toggle:hover {
  background: #1a1a3e;
  border-color: var(--pink-400);
}

[data-theme="dark"] .dark-toggle {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.15);
}

[data-theme="dark"] .dark-toggle:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.25);
}

/* Mobile sidebar backdrop */
@media (max-width: 900px) {
  .sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9998;
    display: none;
  }

  .sidebar-backdrop.visible {
    display: block;
  }
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #1a1a3e, #0f3460, #0d0d2b);
}

[data-theme="dark"] .hero::before {
  background: radial-gradient(circle, rgba(255,62,196,0.05) 0%, transparent 60%);
}

[data-theme="dark"] .card {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3), 0 4px 10px rgba(255,20,147,0.08);
}

[data-theme="dark"] .card:hover,
[data-theme="dark"] .card-link:hover .card {
  box-shadow: 0 15px 35px rgba(0,0,0,0.4), 0 4px 10px rgba(255,20,147,0.15);
  border-color: var(--border-accent);
}

[data-theme="dark"] .card h3 {
  color: var(--text-heading-strong);
}

[data-theme="dark"] .card p {
  color: var(--text-secondary);
}

[data-theme="dark"] h2.section-title {
  color: var(--text-heading);
  border-color: var(--border-accent);
}

[data-theme="dark"] .glossary-table {
  background: var(--bg-table);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .glossary-table thead {
  background: linear-gradient(90deg, #e91082, #0f3460);
}

[data-theme="dark"] .glossary-table tbody tr {
  border-color: var(--border-primary);
}

[data-theme="dark"] .glossary-table tbody tr:hover {
  background: var(--bg-table-hover);
}

[data-theme="dark"] .glossary-table td:first-child {
  color: var(--text-heading-strong);
}

[data-theme="dark"] .def-card {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .def-card:hover {
  border-color: var(--border-accent);
}

[data-theme="dark"] .def-card h3 {
  color: var(--text-heading);
}

[data-theme="dark"] .def-card .category {
  background: linear-gradient(135deg, #e91082, #ff1493);
}

[data-theme="dark"] .def-card p {
  color: var(--text-primary);
}

[data-theme="dark"] .example {
  background: linear-gradient(135deg, var(--bg-table-hover), var(--bg-card));
  color: var(--text-primary);
  border-color: var(--border-secondary);
}

[data-theme="dark"] .example strong {
  color: var(--text-heading);
}

[data-theme="dark"] .use-card {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .use-card:hover {
  box-shadow: 0 15px 35px rgba(0,0,0,0.4), 0 4px 10px rgba(255,20,147,0.15);
  border-color: var(--border-accent);
}

[data-theme="dark"] .use-card h3 {
  color: var(--text-heading);
}

[data-theme="dark"] .use-card p {
  color: var(--text-secondary);
}

[data-theme="dark"] .prompt-block {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .prompt-block:hover {
  border-color: var(--border-accent);
}

[data-theme="dark"] .prompt-block h3 {
  color: var(--text-heading);
}

[data-theme="dark"] .prompt-block .label {
  color: var(--text-heading-strong);
}

[data-theme="dark"] footer {
  background: linear-gradient(90deg, #0f3460, #1a1a3e, #0f3460);
  color: var(--text-footer);
  box-shadow: 0 -4px 20px rgba(255,20,147,0.1);
}

/* Chat page styles */
.chat-config {
  background: var(--white);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  align-items: end;
}

.config-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.config-row label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--pink-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.config-row input {
  padding: 0.6rem 0.8rem;
  border: 2px solid var(--pink-200);
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--pink-900);
  background: var(--pink-50);
  transition: border-color 0.2s, background 0.2s;
}

.config-row input:focus {
  outline: none;
  border-color: var(--pink-400);
  background: var(--white);
}

.clear-btn {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background 0.2s, transform 0.1s;
}

.clear-btn:hover {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  transform: translateY(-1px);
}

.chat-messages {
  background: var(--white);
  border-radius: 16px;
  border: 2px solid var(--pink-200);
  box-shadow: var(--shadow-lg);
  min-height: 400px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 1.5rem;
  margin-bottom: 1rem;
  scroll-behavior: smooth;
}

.message {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
  animation: messageIn 0.3s ease-out;
}

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

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

.message-avatar {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  flex-shrink: 0;
  text-transform: uppercase;
}

.assistant-message .message-avatar {
  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
}

.message-bubble {
  max-width: 75%;
  padding: 0.8rem 1.2rem;
  border-radius: 18px;
}

.user-message .message-bubble {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  border-bottom-right-radius: 6px;
}

.assistant-message .message-bubble {
  background: var(--pink-50);
  border: 2px solid var(--pink-200);
  color: var(--pink-900);
  border-bottom-left-radius: 6px;
}

.message-content {
  font-size: 0.95rem;
  line-height: 1.5;
  word-wrap: break-word;
}

.message-content.streaming::after {
  content: '▊';
  animation: blink 0.8s infinite;
  color: var(--pink-500);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.chat-input-area {
  display: flex;
  gap: 0.8rem;
  background: var(--white);
  border-radius: 16px;
  padding: 1rem 1.2rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
}

.chat-input-area textarea {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 0.95rem;
  color: var(--pink-900);
  font-family: inherit;
  resize: none;
  outline: none;
  line-height: 1.5;
}

.chat-input-area textarea::placeholder {
  color: var(--pink-300);
}

.send-btn {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  color: var(--white);
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
  white-space: nowrap;
}

.send-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
  transform: translateY(-1px);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Dark mode chat styles */
[data-theme="dark"] .chat-config {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .config-row label {
  color: var(--text-heading-strong);
}

[data-theme="dark"] .config-row input {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .config-row input:focus {
  border-color: var(--border-accent);
  background: var(--bg-secondary);
}

[data-theme="dark"] .clear-btn {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .clear-btn:hover {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}

[data-theme="dark"] .chat-messages {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .message-avatar {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
}

[data-theme="dark"] .assistant-message .message-avatar {
  background: linear-gradient(135deg, #0f3460, #1a1a3e);
}

[data-theme="dark"] .user-message .message-bubble {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  color: var(--white);
}

[data-theme="dark"] .assistant-message .message-bubble {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .message-content {
  color: var(--text-primary);
}

[data-theme="dark"] .user-message .message-content {
  color: var(--white);
}

[data-theme="dark"] .message-content.streaming::after {
  color: var(--pink-400);
}

[data-theme="dark"] .chat-input-area {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .chat-input-area textarea {
  color: var(--text-primary);
}

[data-theme="dark"] .chat-input-area textarea::placeholder {
  color: var(--text-secondary);
}

[data-theme="dark"] .send-btn {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .send-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}

/* LLM interactive elements */
.llm-btn {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.llm-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  transform: translateY(-1px);
}

.llm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.llm-btn .icon {
  font-size: 1rem;
}

.llm-response-area {
  background: var(--pink-100);
  border: 2px solid var(--pink-300);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  margin-top: 0.8rem;
  font-size: 0.9rem;
  line-height: 1.6;
  max-height: 400px;
  overflow-y: auto;
  display: none;
}

.llm-response-area.visible {
  display: block;
  animation: llmFadeIn 0.3s ease-out;
}

@keyframes llmFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.llm-loading {
  color: var(--pink-500);
  font-style: italic;
}

.llm-error {
  color: var(--pink-700);
  font-weight: 600;
}

.llm-inline-code {
  background: var(--white);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85em;
  border: 1px solid var(--pink-300);
}

.llm-code-block {
  background: var(--pink-50);
  padding: 0.8rem 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.85rem;
  border: 1px solid var(--pink-200);
  margin: 0.5rem 0;
}

.llm-code-block code {
  font-family: 'Courier New', monospace;
  white-space: pre-wrap;
}

.llm-mini-chat {
  display: none;
  background: var(--white);
  border: 2px solid var(--pink-300);
  border-radius: 16px;
  padding: 1.2rem;
  margin-top: 1rem;
  box-shadow: var(--shadow-lg);
}

.llm-mini-chat.visible {
  display: block;
  animation: llmFadeIn 0.3s ease-out;
}

.llm-mini-chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--pink-200);
}

.llm-mini-chat-header h4 {
  color: var(--pink-600);
  font-size: 0.95rem;
  margin: 0;
}

.llm-close-btn {
  background: none;
  border: none;
  color: var(--pink-500);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0.2rem;
  line-height: 1;
  transition: color 0.2s;
}

.llm-close-btn:hover {
  color: var(--pink-700);
}

.llm-mini-chat-output {
  background: var(--pink-50);
  border: 1px solid var(--pink-200);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  margin-bottom: 0.8rem;
  min-height: 40px;
  font-size: 0.9rem;
  line-height: 1.6;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.llm-mini-chat-input-row {
  display: flex;
  gap: 0.5rem;
}

.llm-mini-chat-input {
  flex: 1;
  padding: 0.5rem 0.8rem;
  border: 2px solid var(--pink-200);
  border-radius: 10px;
  font-size: 0.88rem;
  color: var(--pink-900);
  background: var(--pink-50);
  font-family: inherit;
  resize: none;
  outline: none;
}

.llm-mini-chat-input:focus {
  border-color: var(--pink-400);
  background: var(--white);
}

.llm-mini-chat-send {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.2s;
}

.llm-mini-chat-send:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
}

.llm-mini-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Dark mode LLM styles */
[data-theme="dark"] .llm-btn {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .llm-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}

[data-theme="dark"] .llm-response-area {
  background: var(--bg-primary);
  border-color: var(--border-secondary);
}

[data-theme="dark"] .llm-loading {
  color: var(--pink-400);
}

[data-theme="dark"] .llm-error {
  color: var(--pink-300);
}

[data-theme="dark"] .llm-inline-code {
  background: var(--bg-card);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .llm-code-block {
  background: var(--bg-table);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .llm-mini-chat {
  background: var(--bg-card);
  border-color: var(--border-primary);
}

[data-theme="dark"] .llm-mini-chat-header {
  border-bottom-color: var(--border-primary);
}

[data-theme="dark"] .llm-mini-chat-header h4 {
  color: var(--text-heading);
}

[data-theme="dark"] .llm-close-btn {
  color: var(--text-secondary);
}

[data-theme="dark"] .llm-close-btn:hover {
  color: var(--text-primary);
}

[data-theme="dark"] .llm-mini-chat-output {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .llm-mini-chat-input {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .llm-mini-chat-input:focus {
  border-color: var(--border-accent);
  background: var(--bg-secondary);
}

[data-theme="dark"] .llm-mini-chat-send {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .llm-mini-chat-send:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}

/* Ask a question section on home page */
.ask-question-section {
  margin-top: 2.5rem;
}

.ask-question-box {
  background: var(--white);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
}

.ask-question-box h3 {
  color: var(--pink-700);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.ask-question-input-row {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.ask-question-input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: 2px solid var(--pink-200);
  border-radius: 12px;
  font-size: 0.95rem;
  color: var(--pink-900);
  background: var(--pink-50);
  font-family: inherit;
  resize: none;
  outline: none;
}

.ask-question-input:focus {
  border-color: var(--pink-400);
  background: var(--white);
}

.ask-question-answer {
  background: var(--pink-50);
  border: 1px solid var(--pink-200);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-size: 0.95rem;
  line-height: 1.6;
  min-height: 40px;
  white-space: pre-wrap;
  display: none;
}

.ask-question-answer.visible {
  display: block;
  animation: llmFadeIn 0.3s ease-out;
}

[data-theme="dark"] .ask-question-box {
  background: var(--bg-card);
  border-color: var(--border-primary);
}

[data-theme="dark"] .ask-question-box h3 {
  color: var(--text-heading);
}

[data-theme="dark"] .ask-question-input {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .ask-question-input:focus {
  border-color: var(--border-accent);
  background: var(--bg-secondary);
}

[data-theme="dark"] .ask-question-answer {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

/* Modal dialog */
.llm-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.5);
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.llm-modal-container {
  background: var(--white);
  border-radius: 20px;
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.llm-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  border-bottom: 2px solid var(--pink-200);
}

.llm-modal-title {
  color: var(--pink-600);
  font-size: 1.1rem;
  margin: 0;
}

.llm-modal-close {
  background: none;
  border: none;
  color: var(--pink-500);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  line-height: 1;
  transition: color 0.2s;
}

.llm-modal-close:hover {
  color: var(--pink-700);
}

.llm-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--pink-900);
  white-space: pre-wrap;
}

[data-theme="dark"] .llm-modal-container {
  background: var(--bg-card);
}

[data-theme="dark"] .llm-modal-header {
  border-bottom-color: var(--border-primary);
}

[data-theme="dark"] .llm-modal-title {
  color: var(--text-heading);
}

[data-theme="dark"] .llm-modal-close {
  color: var(--text-secondary);
}

[data-theme="dark"] .llm-modal-close:hover {
  color: var(--text-primary);
}

[data-theme="dark"] .llm-modal-body {
  color: var(--text-primary);
}

/* Image generation styles */
.image-gen-prompt-area {
  background: var(--white);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--pink-200);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.image-gen-prompt-area label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--pink-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.image-gen-prompt-area textarea {
  padding: 0.8rem 1rem;
  border: 2px solid var(--pink-200);
  border-radius: 12px;
  font-size: 0.95rem;
  color: var(--pink-900);
  background: var(--pink-50);
  font-family: inherit;
  resize: none;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.image-gen-prompt-area textarea:focus {
  border-color: var(--pink-400);
  background: var(--white);
}

.image-gen-prompt-area textarea::placeholder {
  color: var(--pink-300);
}

.generate-btn {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  color: var(--white);
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
  align-self: flex-start;
}

.generate-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
  transform: translateY(-1px);
}

.generate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.image-gen-results {
  background: var(--white);
  border-radius: 16px;
  border: 2px solid var(--pink-200);
  box-shadow: var(--shadow-lg);
  min-height: 200px;
  max-height: 70vh;
  overflow-y: auto;
  padding: 1.5rem;
  scroll-behavior: smooth;
}

.image-gen-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.image-gen-placeholder p {
  color: var(--pink-400);
  font-style: italic;
  font-size: 0.95rem;
}

.image-gen-loading {
  color: var(--pink-500);
  font-style: italic;
}

.image-gen-error {
  color: var(--pink-700);
  font-weight: 600;
  text-align: center;
}

.generated-image-card {
  background: var(--pink-50);
  border: 2px solid var(--pink-200);
  border-radius: 16px;
  padding: 1.2rem;
  margin-bottom: 1rem;
  animation: llmFadeIn 0.3s ease-out;
}

.generated-image-prompt {
  font-size: 0.9rem;
  color: var(--pink-700);
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--pink-200);
  font-weight: 600;
}

.generated-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.8rem;
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
}

.generated-image {
  max-width: 100%;
  max-height: 512px;
  width: auto;
  height: auto;
  display: block;
  border-radius: 8px;
}

.generated-image-actions {
  display: flex;
  gap: 0.8rem;
}

.image-action-btn {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  transition: background 0.2s, transform 0.1s;
}

.image-action-btn:hover {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  transform: translateY(-1px);
}

/* Dark mode image generation styles */
[data-theme="dark"] .image-gen-prompt-area {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .image-gen-prompt-area label {
  color: var(--text-heading-strong);
}

[data-theme="dark"] .image-gen-prompt-area textarea {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .image-gen-prompt-area textarea:focus {
  border-color: var(--border-accent);
  background: var(--bg-secondary);
}

[data-theme="dark"] .image-gen-prompt-area textarea::placeholder {
  color: var(--text-secondary);
}

[data-theme="dark"] .generate-btn {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .generate-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}

[data-theme="dark"] .image-gen-results {
  background: var(--bg-card);
  border-color: var(--border-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

[data-theme="dark"] .image-gen-placeholder p {
  color: var(--text-secondary);
}

[data-theme="dark"] .image-gen-loading {
  color: var(--pink-400);
}

[data-theme="dark"] .image-gen-error {
  color: var(--pink-300);
}

[data-theme="dark"] .generated-image-card {
  background: var(--bg-primary);
  border-color: var(--border-primary);
}

[data-theme="dark"] .generated-image-prompt {
  color: var(--text-heading);
  border-bottom-color: var(--border-primary);
}

[data-theme="dark"] .generated-image-container {
  background: var(--bg-secondary);
}

[data-theme="dark"] .image-action-btn {
  background: linear-gradient(135deg, var(--pink-600), #0f3460);
}

[data-theme="dark"] .image-action-btn:hover {
  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
}