/* ==========================================================================
   Base & Variables
   ========================================================================== */
:root {
  /* Color Palette - Dark Mode Default */
  --bg-color: #0f172a; /* Slate 900 */
  --bg-surface: #1e293b; /* Slate 800 */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --primary-color: #2563eb; /* Deep Blue */
  --primary-glow: rgba(37, 99, 235, 0.2);
  --accent-color: #0ea5e9; /* Cyan */
  --accent-glow: rgba(14, 165, 233, 0.2);
  
  /* Glassmorphism */
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 4px 20px 0 rgba(0, 0, 0, 0.2);
  
  /* Typography */
  --font-main: 'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="light"] {
  --bg-color: #f8fafc;
  --bg-surface: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.05);
  --glass-shadow: 0 4px 20px 0 rgba(148, 163, 184, 0.1);
  --primary-glow: rgba(37, 99, 235, 0.1);
  --accent-glow: rgba(14, 165, 233, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

/* ==========================================================================
   Utility Classes & Components
   ========================================================================== */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-alt {
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-ghost:hover {
  background: var(--glass-bg);
  transform: translateY(-2px);
}

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

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

.section {
  padding: 100px 5%;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

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

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-color);
  margin-bottom: 16px;
}

.section-title {
  font-size: 3rem;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.reveal-right {
  transform: translateX(50px) scale(0.95);
}

.reveal-right.active {
  transform: translateX(0) scale(1);
}

/* ==========================================================================
   Loader
   ========================================================================== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg-color);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-ring {
  width: 60px;
  height: 60px;
  border: 4px solid var(--glass-border);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

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

.loader-text {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 2px;
  animation: pulseText 1.5s ease-in-out infinite alternate;
}

@keyframes pulseText {
  from { opacity: 0.5; }
  to { opacity: 1; }
}

/* ==========================================================================
   Scroll Progress
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  z-index: 10000;
  width: 0%;
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   Animated Background
   ========================================================================== */
.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: var(--bg-color);
}

.aurora-blob {
  position: absolute;
  filter: blur(100px);
  opacity: 0.15;
  border-radius: 50%;
  animation: floatBlob 30s infinite alternate ease-in-out;
}

.blob-1 {
  top: -10%; left: -10%;
  width: 50vw; height: 50vw;
  background: var(--primary-color);
  animation-delay: 0s;
}

.blob-2 {
  bottom: -10%; right: -10%;
  width: 60vw; height: 60vw;
  background: var(--accent-color);
  animation-delay: -5s;
}

.blob-3 {
  top: 40%; left: 60%;
  width: 40vw; height: 40vw;
  background: #3b82f6;
  animation-delay: -10s;
}

.blob-4 {
  bottom: 20%; left: 10%;
  width: 30vw; height: 30vw;
  background: #0284c7;
  animation-delay: -15s;
}

@keyframes floatBlob {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(5%, 5%) scale(1.1); }
  100% { transform: translate(-5%, -5%) scale(0.9); }
}

#particles-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 5%;
  z-index: 1000;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  padding: 15px 5%;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
}

.logo-highlight {
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle, .chatbot-trigger {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
  position: relative;
}

.theme-toggle:hover, .chatbot-trigger:hover {
  transform: scale(1.1);
  background: var(--primary-glow);
}

.theme-icon {
  position: absolute;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

[data-theme="dark"] .sun-icon { opacity: 1; transform: rotate(0); }
[data-theme="dark"] .moon-icon { opacity: 0; transform: rotate(90deg); }
[data-theme="light"] .sun-icon { opacity: 0; transform: rotate(-90deg); }
[data-theme="light"] .moon-icon { opacity: 1; transform: rotate(0); }

.trigger-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent-color);
  z-index: -1;
  animation: pulse 2s infinite;
  opacity: 0.5;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.5); opacity: 0; }
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
}

.mobile-menu-btn span {
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s ease;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 5% 60px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.hero-content {
  flex: 1;
  padding-right: 40px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(3rem, 5vw, 4.5rem);
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-visual {
  flex: 1;
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  height: 100%;
}

.float-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  padding: 24px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--glass-shadow);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer; /* Make them look clickable */
}

.float-card:hover {
  transform: translateY(-8px) scale(1.05) !important;
  z-index: 10;
  border-color: var(--primary-color);
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.fc-icon {
  font-size: 2rem;
  background: rgba(255,255,255,0.05);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.fc-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
}

.fc-1 { top: 10%; left: 20%; animation: float 6s ease-in-out infinite; }
.fc-2 { top: 30%; right: 10%; animation: float 7s ease-in-out infinite 1s; }
.fc-3 { bottom: 30%; left: 10%; animation: float 8s ease-in-out infinite 2s; }
.fc-4 { bottom: 10%; right: 20%; animation: float 6s ease-in-out infinite 3s; }

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0); }
}

/* ==========================================================================
   Stages Timeline
   ========================================================================== */
.stages-timeline {
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
}

.stages-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 40px;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--primary-color), var(--accent-color), transparent);
}

.stage-card {
  display: flex;
  gap: 24px;
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
  margin-left: 60px;
  align-items: center;
}

.stage-img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  flex-shrink: 0;
}

@keyframes pulseHighlight {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); border-color: var(--primary-color); }
  70% { box-shadow: 0 0 0 15px rgba(37, 99, 235, 0); border-color: var(--primary-color); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); border-color: var(--glass-border); }
}

.highlight-pulse {
  animation: pulseHighlight 1.5s ease-out;
}

.stage-card:hover {
  transform: translateX(10px);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: var(--glass-shadow);
}

.stage-number {
  position: absolute;
  left: -90px;
  top: 40px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-color);
  background: var(--bg-color);
  padding: 10px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage-icon {
  font-size: 3rem;
  flex-shrink: 0;
}

.stage-content h3 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.stage-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.stage-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.stage-details li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  background: rgba(255,255,255,0.03);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.stage-details li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
}

/* ==========================================================================
   Quiz Section
   ========================================================================== */
.quiz-container {
  max-width: 800px;
  margin: 0 auto;
}

.quiz-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 50px;
  text-align: center;
  backdrop-filter: blur(12px);
  box-shadow: var(--glass-shadow);
}

.quiz-start-icon, .quiz-result-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: float 4s ease-in-out infinite;
}

.quiz-start-panel h3, .quiz-result-panel h3 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.quiz-start-panel p, .quiz-result-panel p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

/* Active Quiz */
.quiz-active-panel {
  text-align: left;
}

.quiz-progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  width: 0%;
  transition: width 0.4s ease;
}

.quiz-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 30px;
  font-weight: 600;
  color: var(--accent-color);
}

.quiz-question {
  font-size: 1.5rem;
  margin-bottom: 30px;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 30px;
}

.quiz-option {
  padding: 16px 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.quiz-option:hover {
  background: rgba(255,255,255,0.08);
  transform: translateX(5px);
  border-color: var(--primary-color);
}

.quiz-option.correct {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #10b981;
}

.quiz-option.wrong {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #ef4444;
}

.quiz-next-btn {
  width: 100%;
}

.quiz-result-score {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  color: var(--primary-color);
  margin: 20px 0 40px;
}

/* ==========================================================================
   Simulator Section
   ========================================================================== */
.simulator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.sim-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  transition: var(--transition-bounce);
  backdrop-filter: blur(12px);
}

.sim-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--glass-shadow);
}

.sim-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.sim-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.sim-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.sim-btn {
  width: 100%;
}

/* Modal */
.sim-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.sim-modal.active {
  opacity: 1;
  visibility: visible;
}

.sim-modal-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  padding: 40px;
  transform: scale(0.9);
  transition: all 0.3s ease;
}

.sim-modal.active .sim-modal-content {
  transform: scale(1);
}

.sim-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 2rem;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.sim-modal-close:hover {
  color: var(--text-primary);
}

.sim-modal-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  text-align: center;
}

.sim-modal-content h3 {
  font-size: 2rem;
  margin-bottom: 16px;
  text-align: center;
  color: var(--primary-color);
}

.sim-modal-body {
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: center;
}

.sim-modal-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sim-modal-steps .step {
  background: rgba(255,255,255,0.05);
  padding: 16px;
  border-radius: var(--radius-sm);
  display: flex;
  gap: 16px;
}

.step-num {
  font-weight: bold;
  color: var(--accent-color);
}

/* ==========================================================================
   Chatbot
   ========================================================================== */
.chatbot {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 350px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  z-index: 1500;
  transform: translateY(20px) scale(0.9);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-bounce);
  max-height: 500px;
  height: 80vh;
}

.chatbot.active {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: all;
}

.chatbot-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.chatbot-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chatbot-avatar {
  font-size: 1.5rem;
  background: var(--primary-color);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.chatbot-name {
  font-weight: 600;
  display: block;
}

.chatbot-status {
  font-size: 0.8rem;
  color: #10b981;
  display: flex;
  align-items: center;
  gap: 4px;
}

.chatbot-status::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #10b981;
  border-radius: 50%;
  display: inline-block;
}

.chatbot-close {
  font-size: 1.5rem;
  color: var(--text-secondary);
}

.chatbot-close:hover {
  color: var(--text-primary);
}

.chatbot-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
}

.chat-bubble {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  animation: fadeIn 0.3s ease;
}

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

.bot-msg {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}

.user-msg {
  background: var(--primary-color);
  color: #fff;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  align-self: flex-start;
  width: fit-content;
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--text-secondary);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

.chatbot-suggestions {
  padding: 10px 20px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
}

.chatbot-suggestions::-webkit-scrollbar {
  display: none;
}

.suggestion-chip {
  padding: 6px 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  transition: all 0.2s;
}

.suggestion-chip:hover {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.chatbot-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  gap: 12px;
}

.chatbot-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 10px 16px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: border-color 0.3s;
}

.chatbot-input:focus {
  border-color: var(--primary-color);
}

.chatbot-send {
  width: 42px;
  height: 42px;
  background: var(--primary-color);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s;
}

.chatbot-send:hover {
  transform: scale(1.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--glass-border);
  padding: 40px 5%;
  margin-top: 60px;
  background: rgba(0,0,0,0.2);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}

.footer-copy {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 100px;
  }
  
  .hero-content {
    padding-right: 0;
    margin-bottom: 60px;
  }
  
  .hero-subtitle {
    margin: 0 auto 40px;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    width: 100%;
    height: 400px;
  }
  
  .stages-timeline::before {
    left: 20px;
  }
  
  .stage-card {
    margin-left: 50px;
    padding: 30px;
  }
  
  .stage-number {
    left: -60px;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 16px;
  }
  
  .hero {
    padding: 100px 16px 40px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }
  
  .btn {
    width: 100%;
    min-height: 48px; /* Touch-friendly target */
  }
  
  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin-top: 20px;
  }

  .hero-visual {
    height: 250px; /* Make it smaller so it doesn't overlap on mobile */
    opacity: 0.8;
    margin-top: 40px;
  }
  
  .float-card {
    padding: 12px 16px;
  }
  
  .fc-icon {
    width: 32px;
    height: 32px;
    font-size: 1.2rem;
  }
  
  .fc-text {
    font-size: 0.9rem;
  }

  /* Fixed Mobile Timeline */
  .stages-timeline::before {
    left: 15px; /* Center of the 30px circle */
  }
  
  .stage-card {
    margin-left: 42px; /* Give room for the circle and line */
    padding: 24px 16px;
    flex-direction: column;
    gap: 16px;
    width: auto;
    align-items: flex-start;
  }
  
  .stage-img {
    width: 100%;
    height: auto;
    max-height: 200px;
    margin-top: 10px;
  }
  
  .stage-number {
    left: -42px; /* Pull it back to center over the line */
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
    top: 24px;
  }
  
  .stage-icon {
    font-size: 2rem;
    margin-bottom: 4px;
  }
  
  .stage-content h3 {
    font-size: 1.3rem;
  }
  
  .stage-details {
    grid-template-columns: 1fr; /* Single column on mobile */
  }

  /* Quiz and Simulator Mobile Fixes */
  .quiz-panel {
    padding: 32px 16px;
  }
  
  .quiz-question {
    font-size: 1.2rem;
  }

  .sim-modal-content {
    padding: 24px 16px;
  }

  /* Navbar Mobile Fixes */
  .nav-inner {
    padding: 0;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100vw; /* Full width mobile menu */
    height: 100vh;
    background: var(--bg-surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.4s ease;
    border-left: 1px solid var(--glass-border);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .mobile-menu-btn {
    display: flex;
    z-index: 1001;
  }
  
  .mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
  .mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  
  /* Chatbot Bottom Sheet */
  .chatbot {
    width: 100%;
    bottom: 0;
    right: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    height: 85vh;
    max-height: none;
    transform: translateY(100%);
  }
  
  .chatbot.active {
    transform: translateY(0);
  }
}