/* ===========================
   Modern Light Design
   User Friendly
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* ===== COLOR PALETTE ===== */
/* FORCED UPDATE - NO CACHE VERSION 20260209114933 */
:root {
  --primary: #6366F1;
  --primary-light: #818CF8;
  --primary-dark: #4F46E5;
  --secondary: #10B981;
  --secondary-light: #34D399;
  --accent: #F59E0B;
  --danger: #EF4444;
  
  --bg-main: #FFFFFF;
  --bg-secondary: #F9FAFB;
  --bg-tertiary: #F3F4F6;
  
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.12);
}

/* ===== GLOBAL STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 50%, #F3F4F6 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

h1 { font-size: 2.5rem; line-height: 1.2; }
h2 { font-size: 2rem; line-height: 1.3; }
h3 { font-size: 1.5rem; line-height: 1.4; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.1rem; font-weight: 600; }
h6 { font-size: 1rem; font-weight: 600; }

p { color: var(--text-secondary); font-size: 15px; }

/* ===== CARDS ===== */
.card, .glass {
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.card:hover, .glass:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border);
  transform: translateY(-2px);
}

/* ===== BUTTONS ===== */
.btn, button, a.btn {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: var(--secondary);
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-secondary:hover {
  background: var(--secondary-light);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  padding: 10px 22px;
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== INPUTS ===== */
input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-light);
  border-radius: 10px;
  font-family: 'Poppins', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-secondary);
  transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-main);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

input::placeholder {
  color: var(--text-muted);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== MESSAGES ===== */
.alert {
  padding: 16px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.alert-success {
  background: #ECFDF5;
  color: #065F46;
  border-left: 4px solid var(--secondary);
}

.alert-error {
  background: #FEF2F2;
  color: #7F1D1D;
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background: #FFFBEB;
  color: #92400E;
  border-left: 4px solid var(--accent);
}

.alert-info {
  background: #DBEAFE;
  color: #0C2340;
  border-left: 4px solid var(--primary);
}

/* ===== CHAT CONTAINER ===== */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-main);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 100%;
}

.message {
  display: flex;
  gap: 12px;
  animation: messageSlide 0.4s ease;
  max-width: 100%;
  box-sizing: border-box;
}

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

.message.user {
  justify-content: flex-end;
}

.message-content {
  max-width: 70%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  word-wrap: break-word;
  word-break: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
  hyphens: auto;
  overflow: hidden;
  overflow-wrap: anywhere;
}

.message.bot .message-content {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.message.user .message-content {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
}

/* Message Content Elements */
.message-content p {
  margin: 0 0 8px 0;
  word-wrap: break-word;
  word-break: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
  overflow: hidden;
}

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

.message-content a {
  color: inherit;
  text-decoration: underline;
  word-break: break-all;
  overflow-wrap: anywhere;
  word-wrap: break-word;
  hyphens: none;
  max-width: 100%;
  display: inline;
  line-break: anywhere;
}

.message.bot .message-content a {
  color: var(--primary);
  font-weight: 500;
}

.message.user .message-content a {
  color: rgba(255, 255, 255, 0.95);
  font-weight: 500;
}

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

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

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

.message-content code {
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  word-break: break-all;
}

.message.user .message-content code {
  background: rgba(255, 255, 255, 0.2);
}

.chat-input-area {
  padding: 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.chat-input-wrapper {
  display: flex;
  gap: 12px;
  align-items: center;
}

.chat-input-wrapper input {
  flex: 1;
  padding: 12px 16px;
  border-radius: 10px;
  border: 2px solid var(--border-light);
  background: var(--bg-main);
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-primary {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--secondary);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

/* ===== LOADER ===== */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spinnerRotate 0.8s linear infinite;
}

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

/* ===== UTILITIES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.flex {
  display: flex;
  align-items: center;
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }
.text-lg { font-size: 18px; font-weight: 600; }

.rounded-lg { border-radius: 12px; }
.rounded-xl { border-radius: 16px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.2rem; }
  
  .message-content,
  .msg-content {
    max-width: 85%;
    font-size: 13px;
    word-break: break-word;
    overflow-wrap: anywhere;
  }
  
  .card, .glass {
    padding: 16px;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 13px;
  }
  
  .chat-input-area {
    padding: 16px;
  }

  /* === NAVBAR MOBILE === */
  nav {
    padding: 0;
  }

  .nav-content {
    padding: 10px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
  }

  .nav-logo-img {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .nav-logo-text {
    flex: 1;
    min-width: 0;
  }

  .nav-logo-main {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
  }

  .nav-logo-sub {
    font-size: 10px;
    line-height: 1.2;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-links {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
  }

  .nav-links a {
    font-size: 12px;
    padding: 6px 12px;
    white-space: nowrap;
  }

  .nav-cta {
    padding: 6px 16px !important;
    font-size: 11px !important;
    border-radius: 16px !important;
  }

  /* === HERO MOBILE === */
  .hero {
    padding: 100px 0 60px 0;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 0 16px;
  }

  .hero-badge {
    font-size: 11px;
    padding: 5px 10px;
  }

  .hero h1 {
    font-size: 1.8rem;
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
  }

  .stat-item {
    min-width: calc(33.333% - 8px);
    flex: 1;
  }

  .stat-number {
    font-size: 20px;
  }

  .stat-label {
    font-size: 11px;
  }

  .hero-cta-btn {
    width: 100%;
    padding: 14px 24px !important;
    font-size: 14px !important;
  }

  .hero-image {
    width: 250px !important;
    height: 250px !important;
    margin: 0 auto;
  }

  /* === FEATURES MOBILE === */
  .features-section,
  .tutorial-section,
  .faq-section {
    padding: 60px 0;
  }

  .features-content,
  .tutorial-content,
  .faq-content {
    padding: 0 16px;
  }

  .section-title {
    font-size: 1.8rem;
    margin-bottom: 12px;
  }

  .section-subtitle {
    font-size: 14px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .features-list {
    gap: 24px;
    max-width: 100%;
    padding: 0 10px;
  }

  .feature-item {
    gap: 14px;
    padding: 0;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .feature-icon {
    font-size: 24px;
    margin: 0 auto;
    display: block;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
    border-radius: 12px;
    padding: 8px;
  }

  .feature-text {
    text-align: center;
    width: 100%;
  }

  .feature-text h3 {
    font-size: 16px;
    margin-bottom: 8px;
    text-align: center;
  }

  .feature-text p {
    font-size: 14px;
    line-height: 1.6;
    text-align: center;
    margin: 0 auto;
    max-width: 90%;
  }

  /* === TUTORIAL/STEPS MOBILE === */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-card {
    padding: 20px;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .step-card h4 {
    font-size: 16px;
    margin-top: 12px;
  }

  .step-card p {
    font-size: 13px;
  }

  /* === FAQ MOBILE === */
  .faq-item {
    padding: 16px;
  }

  .faq-question {
    font-size: 14px;
    padding: 12px 16px;
  }

  .faq-answer {
    font-size: 13px;
    padding: 12px 16px;
  }

  .faq-icon {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }

  /* === FOOTER MOBILE === */
  footer {
    padding: 30px 16px;
  }

  footer p {
    font-size: 12px;
  }

  /* === FLOATING CHAT BUTTON MOBILE === */
  .floating-chat-btn {
    width: 56px;
    height: 56px;
    bottom: 20px;
    right: 16px;
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
  
  /* Extra small screens adjustments */
  .nav-content {
    padding: 8px 12px;
  }

  .nav-logo-img {
    width: 32px;
    height: 32px;
  }

  .nav-logo-main {
    font-size: 15px;
  }

  .nav-logo-sub {
    font-size: 9px;
  }

  .nav-links {
    gap: 6px;
    padding-top: 6px;
  }

  .nav-links a {
    font-size: 11px;
    padding: 5px 10px;
  }

  .nav-cta {
    padding: 5px 12px !important;
    font-size: 10.5px !important;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .stat-item {
    min-width: 100%;
  }

  .feature-icon {
    font-size: 22px;
    width: 36px;
    height: 36px;
  }

  .feature-text h3 {
    font-size: 15px;
  }

  .feature-text p {
    font-size: 13px;
  }
  
  .message-content,
  .msg-content {
    max-width: 90%;
    font-size: 13px;
    word-break: break-word;
    overflow-wrap: anywhere;
  }
  
  .chat-messages {
    padding: 16px;
    gap: 12px;
  }
}

/* ===== CHAT MODAL ===== */
.chat-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.chat-modal.open {
  display: flex;
}

.chat-modal-content {
  display: flex;
  width: 90%;
  max-width: 1200px;
  height: 80vh;
  max-height: 700px;
  background: var(--bg-main);
  border-radius: 16px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.chat-questions-sidebar {
  width: 300px;
  background: var(--bg-secondary);
  padding: 20px;
  border-right: 1px solid var(--border-light);
  overflow-y: auto;
}

.chat-questions-sidebar h4 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-size: 16px;
}

.chat-questions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.chat-question-item {
  padding: 10px 12px;
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-primary);
  border: none;
}

.chat-question-item:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateX(4px) !important;
  box-shadow: var(--shadow-sm) !important;
}

/* === QUESTION CATEGORIES STYLING === */
.question-category {
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: var(--bg-main);
  overflow: hidden;
}

.category-header {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-tertiary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.category-header:hover {
  background: var(--primary-light);
  color: white;
}

.category-header.collapsed {
  background: var(--bg-secondary);
}

.category-title {
  font-weight: 600;
}

.category-count {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

.category-header:hover .category-count {
  color: rgba(255, 255, 255, 0.8);
}

.category-arrow {
  font-size: 12px;
  transition: transform 0.2s ease;
  color: var(--text-secondary);
}

.category-questions {
  padding: 0 8px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.category-questions .chat-question-item {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.category-questions .chat-question-item:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateX(2px) !important;
  box-shadow: var(--shadow-sm) !important;
}

.view-all-btn-sidebar {
  width: 100%;
  padding: 8px 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.view-all-btn-sidebar:hover {
  background: #D97706;
}

.chat-right-container {
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

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

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.chat-info h3 {
  margin: 0;
  font-size: 16px;
  color: var(--text-primary);
}

.chat-status {
  font-size: 12px;
  color: var(--secondary);
}

.finish-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--secondary);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
}

.finish-btn:hover {
  background: var(--secondary-light);
  transform: translateY(-1px);
}

.message.bot-msg {
  justify-content: flex-start;
}

.message.user-msg {
  justify-content: flex-end;
}

.msg-content {
  max-width: 70%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.4;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  word-wrap: break-word;
  word-break: break-word;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  overflow: hidden;
  max-width: 70%;
}

/* Links inside msg-content */
.msg-content a {
  color: inherit;
  text-decoration: underline;
  word-break: break-all !important;
  overflow-wrap: anywhere !important;
  word-wrap: break-word !important;
  white-space: normal !important;
  line-break: anywhere !important;
  display: inline !important;
  max-width: 100% !important;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.msg-content a:hover {
  opacity: 0.8;
}

.message.bot-msg .msg-content a {
  color: var(--primary);
  font-weight: 500;
}

.message.user-msg .msg-content a {
  color: rgba(255, 255, 255, 0.95);
  font-weight: 500;
}

.message.bot-msg .msg-content {
  background: var(--bg-main);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px 12px 12px 4px;
}

.message.user-msg .msg-content {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 12px 12px 4px 12px;
}

.input-wrapper {
  display: flex;
  gap: 8px;
  align-items: center;
}

.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border-light);
  border-radius: 25px;
  background: var(--bg-secondary);
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
}

.chat-input:focus {
  border-color: var(--primary);
  background: var(--bg-main);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.send-btn {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

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

/* Floating Chat Button */
.floating-chat-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  z-index: 999;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.floating-chat-btn:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  z-index: 100;
  padding: 0;
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

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

.nav-logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
}

.nav-logo-main {
  font-weight: 700;
  font-size: 22px;
  color: var(--text-primary);
  line-height: 1;
}

.nav-logo-sub {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-cta {
  background: transparent !important;
  color: var(--primary) !important;
  border: 2px solid var(--primary) !important;
  padding: 10px 24px !important;
  border-radius: 20px !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  transition: all 0.2s ease;
}

.nav-cta:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

/* Hero Section */
.hero {
  padding: 120px 0 80px 0;
  background: linear-gradient(135deg, var(--bg-main) 0%, var(--bg-secondary) 100%);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.stat-icon {
  font-size: 18px;
  margin-bottom: 4px;
}

.stat-number {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-image-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 24px;
}

.hero-image {
  width: 200px;
  height: 200px;
  object-fit: contain;
  z-index: 2;
  position: relative;
  filter: drop-shadow(0 10px 30px rgba(99, 102, 241, 0.3));
}

.hero-image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.08) 40%, transparent 70%);
  border-radius: 50%;
  filter: blur(20px);
}

.hero-image-glow::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 20%;
  right: 20%;
  bottom: 20%;
  background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  border-radius: 50% 30% 60% 40%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(10deg) scale(1.05); }
}

/* Hero CTA Button */
.hero-cta {
  margin-top: 64px;
}

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 16px 32px;
  border-radius: 25px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  transition: all 0.3s ease;
}

.hero-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.5);
  color: white;
}

.hero-cta-btn:active {
  transform: translateY(-1px);
}

/* Features List - No False Affordance */
.features-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 500px;
  margin: 0 auto;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  transition: none;
}

.feature-item:hover {
  transform: none;
  box-shadow: none;
  border-color: transparent;
}

.feature-icon {
  font-size: 20px;
  margin-top: 2px;
  flex-shrink: 0;
}

.feature-text {
  flex: 1;
}

.feature-text h3 {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
}

.feature-text p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.hero-features-quick {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.quick-feature {
  padding: 12px 16px;
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  transition: all 0.2s ease;
}

.quick-feature:hover {
  background: var(--primary);
  color: white;
  transform: translateX(8px);
}

/* Sections */
.features-section,
.tutorial-section,
.faq-section {
  padding: 80px 0;
}

.features-content,
.tutorial-content,
.faq-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 500px;
  margin: 0 auto;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  transition: none;
}

.feature-item:hover {
  transform: none;
  box-shadow: none;
  border-color: transparent;
}

.feature-icon {
  font-size: 20px;
  margin-top: 2px;
  flex-shrink: 0;
}

.feature-text {
  flex: 1;
}

.feature-text h3 {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
}

.feature-text p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.step-card {
  text-align: center;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 20px auto;
}

.step-card h4 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.step-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-items {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 24px;
  padding: 24px;
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  cursor: pointer;
}

.faq-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-question span {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 16px;
}

.faq-answer {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  padding-left: 48px;
}

/* Footer */
footer {
  background: var(--bg-tertiary);
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid var(--border-light);
}

footer p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0;
}

/* Mobile-Friendly Questions Button */
.mobile-questions-btn {
  display: none;
  position: fixed;
  bottom: 90px;
  right: 20px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
  cursor: pointer;
  z-index: 999;
  transition: all 0.3s ease;
  font-family: 'Poppins', sans-serif;
}

.mobile-questions-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.6);
}

.mobile-questions-btn:active {
  transform: translateY(-1px);
}

/* Mobile Text Center Responsive - Single Rule for All Devices */
@media (max-width: 768px) {
  /* Text centering for sections */
  .features-section,
  .tutorial-section,
  .faq-section {
    text-align: center;
  }
  
  .step-card,
  .faq-item {
    text-align: center;
  }
  
  /* Feature items already styled in main mobile section above */
  
  .step-card h4,
  .faq-question span {
    text-align: center;
  }
  
  .step-card p {
    text-align: center;
  }
  
  .steps-grid {
    justify-items: center;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-stats {
    justify-content: center;
  }

  /* Hide sidebar on mobile, show floating button instead */
  .chat-questions-sidebar {
    display: none !important;
  }

  .chat-modal-content {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    border-radius: 0 !important;
    height: 100vh !important;
  }

  .chat-right-container {
    width: 100% !important;
    border-radius: 0 !important;
  }

  /* Show mobile questions button */
  .mobile-questions-btn {
    display: flex !important;
    align-items: center;
    gap: 8px;
  }

  /* FAQ alignment fix */
  .faq-question {
    text-align: left;
  }

  .faq-answer {
    text-align: left;
    padding-left: 20px;
  }
}

/* Questions Modal */
.questions-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  z-index: 1001;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.questions-modal.open {
  display: flex;
}

.questions-modal-content {
  background: var(--bg-main);
  border-radius: 16px;
  padding: 24px;
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
  font-family: 'Poppins', sans-serif;
}

.questions-modal h3 {
  margin-bottom: 20px;
  color: var(--text-primary);
  font-size: 20px;
  text-align: center;
  font-weight: 600;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 12px;
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 8px;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.close-btn:hover {
  color: white;
  background: var(--danger);
}

#allQuestionsList {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

#allQuestionsList h3 {
  margin: 0 0 20px 0 !important;
  color: var(--text-primary) !important;
  font-size: 18px !important;
  text-align: center !important;
  border-bottom: 2px solid var(--primary) !important;
  padding-bottom: 10px !important;
  font-weight: 600 !important;
}

/* === CATEGORY STYLING === */
.all-question-category {
  margin-bottom: 15px !important;
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  background: var(--bg-main) !important;
  overflow: hidden !important;
  box-shadow: var(--shadow-sm) !important;
}

.all-category-header {
  width: 100% !important;
  padding: 15px 18px !important;
  background: var(--bg-tertiary) !important;
  border: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  cursor: pointer !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  transition: all 0.3s ease !important;
  text-align: left !important;
  font-family: 'Poppins', sans-serif !important;
}

.all-category-header:hover {
  background: var(--primary-light) !important;
  color: white !important;
}

.all-category-title {
  flex: 1 !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  line-height: 1.4 !important;
}

.all-category-count {
  font-size: 12px !important;
  color: var(--text-muted) !important;
  font-weight: 400 !important;
  margin-left: 8px !important;
}

.all-category-arrow {
  font-size: 14px !important;
  transition: transform 0.2s ease !important;
  color: var(--text-secondary) !important;
  margin-left: 12px !important;
}

.all-category-questions {
  background: var(--bg-secondary) !important;
  transition: all 0.3s ease !important;
  overflow-y: auto !important;
}

/* Expanded state styles */
.all-category-header.expanded {
  background: var(--primary-light) !important;
  color: white !important;
}

.all-category-header.expanded .all-category-arrow {
  transform: rotate(180deg) !important;
}

/* Improved question item styling */
.all-question-item {
  width: 100% !important;
  margin-bottom: 8px !important;
  padding: 14px 16px !important;
  background: var(--bg-main) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: 8px !important;
  text-align: left !important;
  cursor: pointer !important;
  font-size: 14px !important;
  color: var(--text-primary) !important;
  transition: all 0.25s ease !important;
  line-height: 1.5 !important;
}

/* Mobile Responsive for Questions Modal */
@media (max-width: 768px) {
  .questions-modal {
    padding: 10px !important;
  }

  .questions-modal-content {
    max-width: 100% !important;
    width: 100% !important;
    padding: 16px !important;
    border-radius: 12px !important;
    max-height: 90vh !important;
  }

  .questions-modal h3 {
    font-size: 18px !important;
    padding-bottom: 10px !important;
    margin-bottom: 16px !important;
  }

  .all-category-header {
    padding: 12px 14px !important;
    font-size: 13px !important;
  }

  .all-category-title {
    font-size: 13px !important;
  }

  .all-category-count {
    font-size: 11px !important;
  }

  .all-question-item {
    padding: 12px 14px !important;
    font-size: 13px !important;
    margin-bottom: 6px !important;
  }

  .close-btn {
    top: 12px !important;
    right: 12px !important;
    width: 32px !important;
    height: 32px !important;
    font-size: 18px !important;
  }

  /* Mobile floating button positioning */
  .mobile-questions-btn {
    bottom: 80px !important;
    right: 16px !important;
    padding: 12px 20px !important;
    font-size: 13px !important;
  }
  font-family: 'Poppins', sans-serif !important;
  font-weight: 500 !important;
  word-wrap: break-word !important;
  hyphens: auto !important;
  box-sizing: border-box !important;
}

.all-question-item:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateX(4px) !important;
  box-shadow: var(--shadow-md) !important;
}

.all-question-item:last-child {
  margin-bottom: 0 !important;
}

/* ===== CRITICAL FIX: PREVENT LINK OVERFLOW ===== */
.message-content a,
.message-content p a,
.message.bot .message-content a,
.message.user .message-content a,
a {
  word-break: break-all !important;
  overflow-wrap: anywhere !important;
  word-wrap: break-word !important;
  max-width: 100% !important;
  display: inline !important;
  white-space: normal !important;
  line-break: anywhere !important;
  hyphens: none !important;
}

/* Force container to respect boundaries */
.message-content,
.message-content * {
  max-width: 100% !important;
  box-sizing: border-box !important;
  overflow-wrap: anywhere !important;
  word-break: break-word !important;
}

/* Specific override for very long URLs */
.message-content a[href*="http"],
.message-content a[href*="https"] {
  word-break: break-all !important;
  overflow-wrap: anywhere !important;
  line-break: anywhere !important;
  white-space: normal !important;
  max-width: 100% !important;
  display: inline !important;
}