/* Custom Properties & Design System */
:root {
  --bg-dark: #08090f;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  --primary: #6366f1; /* Indigo */
  --primary-rgb: 99, 102, 241;
  --secondary: #06b6d4; /* Cyan */
  --secondary-rgb: 6, 182, 212;
  --accent-pink: #d946ef; /* Fuchsia */
  --accent-pink-rgb: 217, 70, 239;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #0f172a;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-lg: 16px;
  --border-radius-md: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

/* Glow Background Effects */
.glow-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.15;
  animation: float 25s infinite ease-in-out alternate;
}

.blob-purple {
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: -20%;
  right: -10%;
  animation-delay: 0s;
}

.blob-cyan {
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
  top: 40%;
  left: -20%;
  animation-delay: -5s;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(5%, 10%) scale(1.1);
  }
  100% {
    transform: translate(-5%, -5%) scale(0.95);
  }
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--border-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-large {
  padding: 14px 28px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
  padding: 12px 24px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

/* Text Gradients & Badges */
.gradient-text {
  background: linear-gradient(135deg, #a5b4fc 0%, #818cf8 30%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
}

/* Header & Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(8, 9, 15, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition-smooth);
  position: relative;
  padding: 4px 0;
}

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

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

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero-section {
  padding: 160px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 24px;
  font-weight: 800;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Dashboard Mockup */
.dashboard-mockup {
  background: rgba(13, 15, 26, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  overflow: hidden;
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: var(--transition-smooth);
}

.dashboard-mockup:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg) translateY(-8px);
  box-shadow: 0 30px 60px rgba(99, 102, 241, 0.15);
  border-color: var(--border-hover);
}

.dashboard-header {
  background: rgba(255, 255, 255, 0.02);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.dots {
  display: flex;
  gap: 6px;
  margin-right: 20px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.dashboard-tab {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.dashboard-body {
  padding: 24px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.5;
  overflow-x: auto;
}

.code-comment { color: #64748b; }
.code-keyword { color: #f43f5e; }
.code-string { color: #10b981; }
.code-output { color: #38bdf8; display: block; margin-top: 10px; }

/* Stats Section */
.stats-section {
  padding: 40px 0;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition-smooth);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Philosophy Section */
.philosophy-section {
  padding: 100px 0;
}

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

.section-title {
  font-size: 2.6rem;
  margin-bottom: 16px;
  font-weight: 800;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon-wrapper.purple {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.feature-icon-wrapper.teal {
  background: rgba(6, 182, 212, 0.1);
  color: var(--secondary);
}

.feature-icon-wrapper.pink {
  background: rgba(217, 70, 239, 0.1);
  color: var(--accent-pink);
}

.feature-icon {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Curriculum Timeline */
.curriculum-section {
  padding: 100px 0;
  background: rgba(255, 255, 255, 0.01);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 36px;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary) 0%, var(--secondary) 60%, rgba(255,255,255,0.05) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-badge {
  position: absolute;
  left: -41px;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 2px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.timeline-item.active .timeline-badge {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 0 15px var(--primary);
}

.timeline-content-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.timeline-content-box:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.timeline-header h3 {
  font-size: 1.25rem;
}

.timeline-tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-muted);
}

.timeline-item.active .timeline-tag {
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.timeline-body-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s cubic-bezier(0, 1, 0, 1), opacity 0.3s ease;
}

.timeline-item.active .timeline-body-content {
  max-height: 1000px;
  opacity: 1;
  transition: max-height 0.4s cubic-bezier(1, 0, 1, 0), opacity 0.3s ease;
  margin-top: 16px;
}

.timeline-details {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.detail-badge {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
}

.timeline-task {
  border-left: 3px solid var(--secondary);
  padding-left: 12px;
  font-size: 0.9rem;
  margin-top: 12px;
}

/* Evaluation Section */
.evaluation-section {
  padding: 100px 0;
}

.grading-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.grading-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition-smooth);
}

.grading-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.grading-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.grading-icon {
  width: 20px;
  height: 20px;
}

.bg-blue { background: rgba(56, 189, 248, 0.1); color: #38bdf8; }
.bg-violet { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }
.bg-teal { background: rgba(20, 184, 166, 0.1); color: #14b8a6; }
.bg-pink { background: rgba(236, 72, 153, 0.1); color: #ec4899; }

.grading-percentage {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1;
}

.grading-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.grading-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.passing-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: var(--border-radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.banner-badge {
  background: var(--primary);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

.passing-banner p {
  font-size: 0.95rem;
  color: #e2e8f0;
}

/* FAQ Section */
.faq-section {
  padding: 100px 0;
  background: rgba(255, 255, 255, 0.01);
  border-top: 1px solid var(--border-color);
}

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

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}

.faq-item:first-child {
  border-top: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 16px 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: var(--transition-smooth);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), opacity 0.25s ease;
  padding: 0 8px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  opacity: 1;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0), opacity 0.25s ease;
  padding-bottom: 20px;
}

.faq-answer p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Call to Action */
.cta-section {
  padding: 100px 0;
}

.cta-container-box {
  background: radial-gradient(circle at top right, rgba(6, 182, 212, 0.1) 0%, rgba(99, 102, 241, 0.05) 50%, transparent 100%), var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 80px 48px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.cta-content h2 {
  font-size: 2.8rem;
  margin-bottom: 16px;
  font-weight: 800;
}

.cta-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 60px;
  margin-bottom: 60px;
}

.brand-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4,
.footer-policy h4 {
  font-size: 1.05rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffffff;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-policy p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 32px;
  display: flex;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 5, 8, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #0d0f17;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
  width: 100%;
  max-width: 500px;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.modal-overlay.open .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.modal-header {
  margin-bottom: 28px;
}

.modal-header h3 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.modal-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group select {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  width: 100%;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
}

.form-group select option {
  background: #0d0f17;
  color: var(--text-main);
}

/* Success Modal View */
.modal-success {
  display: none;
  text-align: center;
  flex-direction: column;
  align-items: center;
  animation: fadeIn 0.4s ease forwards;
}

.success-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.success-icon {
  width: 28px;
  height: 28px;
}

.modal-success h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.modal-success p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
  line-height: 1.5;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 3rem;
  }
  .grading-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-policy {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  /* Navbar */
  .mobile-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: rgba(8, 9, 15, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 32px 24px;
    gap: 24px;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 99;
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav-cta {
    display: none; /* In mobile, CTA is inside menu or logo is enough */
  }
  
  /* Hero */
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .dashboard-mockup {
    transform: none;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .dashboard-mockup:hover {
    transform: translateY(-5px);
  }
  
  /* Stats */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  /* Timeline */
  .timeline-container {
    padding-left: 24px;
  }
  .timeline-badge {
    left: -37px;
  }
  
  /* Passing banner */
  .passing-banner {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }
}

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 2.3rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .grading-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-policy {
    grid-column: span 1;
  }
  .cta-container-box {
    padding: 48px 24px;
  }
  .cta-content h2 {
    font-size: 2rem;
  }
  .modal-card {
    padding: 24px;
  }
}