/* === Variables & Reset === */
:root {
  --primary: #1F6096;
  --secondary: #2F9AD0;
  --gradient: linear-gradient(135deg, #1F6096, #2F9AD0);
  --text: #1a1a2e;
  --text-light: #555;
  --bg: #f0f4f8;
  --bg-alt: #e8eef4;
  --radius: 16px;
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px rgba(31, 96, 150, 0.12);
  --glass-blur: blur(16px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

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

ul {
  list-style: none;
}

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(47, 154, 208, 0.2); }
  50% { box-shadow: 0 0 40px rgba(47, 154, 208, 0.4); }
}

@keyframes blobMove1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes blobMove2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 20px) scale(0.95); }
  66% { transform: translate(20px, -20px) scale(1.05); }
}

/* Scroll-triggered animation class */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.stagger-children .animate-on-scroll:nth-child(2) { transition-delay: 0.08s; }
.stagger-children .animate-on-scroll:nth-child(3) { transition-delay: 0.16s; }
.stagger-children .animate-on-scroll:nth-child(4) { transition-delay: 0.24s; }
.stagger-children .animate-on-scroll:nth-child(5) { transition-delay: 0.32s; }
.stagger-children .animate-on-scroll:nth-child(6) { transition-delay: 0.4s; }
.stagger-children .animate-on-scroll:nth-child(7) { transition-delay: 0.48s; }
.stagger-children .animate-on-scroll:nth-child(8) { transition-delay: 0.56s; }

/* === Glass Mixin-like styles === */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

.glass-dark {
  background: rgba(31, 96, 150, 0.15);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.glass-white {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

/* === Layout === */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.1rem;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--gradient);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::after {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(31, 96, 150, 0.35);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.9rem;
}

/* === Header (Glass) === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 1px 20px rgba(31, 96, 150, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 0.95rem;
  color: var(--text-light);
  font-weight: 500;
  transition: color 0.2s;
}

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

.header-nav a.btn {
  color: #fff;
}

.header-nav a.btn:hover {
  color: #fff;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.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);
}

/* === Hero === */
.hero {
  background:
    linear-gradient(135deg, rgba(31, 96, 150, 0.88), rgba(47, 154, 208, 0.85)),
    url('https://images.unsplash.com/photo-1580582932707-520aed937b7b?w=1200&q=75&auto=format&fit=crop')
    center / cover no-repeat;
  color: #fff;
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Decorative floating blobs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  pointer-events: none;
}

.hero::before {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #fff 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: blobMove1 12s ease-in-out infinite;
}

.hero::after {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #fff 0%, transparent 70%);
  bottom: -80px;
  left: -60px;
  animation: blobMove2 10s ease-in-out infinite;
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-logo {
  width: 220px;
  margin-bottom: 32px;
  filter: brightness(0) invert(1) drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
  animation: fadeIn 0.8s ease-out both, float 3s ease-in-out infinite;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease-out 0.15s both;
}

.hero-subtitle {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 36px;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.45s both;
}

/* === Pricing Section === */
.pricing-section {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.pricing-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(47, 154, 208, 0.07) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  pointer-events: none;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1040px;
  margin: 0 auto;
  align-items: stretch;
  position: relative;
  z-index: 1;
}

.pricing-card {
  background: #fff;
  border: 1px solid rgba(31, 96, 150, 0.1);
  border-radius: 20px;
  padding: 40px 28px 36px;
  box-shadow: 0 2px 12px rgba(31, 96, 150, 0.06);
  transition: all 0.35s ease;
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  box-shadow: 0 8px 40px rgba(31, 96, 150, 0.12);
  transform: translateY(-4px);
}

.pricing-card-featured {
  border: 2px solid var(--primary);
  box-shadow: 0 8px 40px rgba(31, 96, 150, 0.15);
  transform: scale(1.04);
  background: linear-gradient(180deg, rgba(31, 96, 150, 0.02) 0%, #fff 40%);
}

.pricing-card-featured:hover {
  transform: scale(1.04) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 20px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  white-space: nowrap;
}

.pricing-header {
  margin-bottom: 24px;
}

.pricing-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.pricing-price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.pricing-price .currency {
  font-size: 1.4rem;
  font-weight: 600;
  vertical-align: super;
  margin-right: 2px;
}

.pricing-price .amount {
  font-variant-numeric: tabular-nums;
}

.pricing-price .period {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  margin-top: 6px;
}

.pricing-divider {
  height: 1px;
  background: rgba(31, 96, 150, 0.1);
  margin: 20px 0;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 auto;
  text-align: left;
  flex-grow: 1;
}

.pricing-features li {
  padding: 9px 0;
  font-size: 0.92rem;
  color: var(--text);
  position: relative;
  padding-left: 28px;
  line-height: 1.4;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 9px;
  color: var(--secondary);
  font-weight: 700;
  font-size: 1rem;
}

.pricing-cta {
  margin-top: 28px;
}

.pricing-card .btn {
  width: 100%;
  text-align: center;
  padding: 13px 24px;
  border-radius: 12px;
}

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

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

.pricing-card-featured .btn {
  background: var(--gradient);
  border: none;
}

/* === Features Section === */
#features {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

/* Subtle background orbs */
#features::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(47, 154, 208, 0.08) 0%, transparent 70%);
  top: -150px;
  left: -150px;
  pointer-events: none;
}

#features::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(31, 96, 150, 0.06) 0%, transparent 70%);
  bottom: -100px;
  right: -100px;
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.feature-card {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 4px 16px rgba(31, 96, 150, 0.06);
  transition: all 0.4s ease;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 8px 32px rgba(31, 96, 150, 0.14);
  transform: translateY(-6px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* === CBT Spotlight === */
.cbt-section {
  background: linear-gradient(170deg, #e8f2fa 0%, #d4eaf7 50%, #e0ecf5 100%);
  position: relative;
  overflow: hidden;
}

.cbt-section::before {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(31, 96, 150, 0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cbt-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.cbt-content .section-title,
.cbt-content .section-subtitle {
  text-align: left;
  margin-left: 0;
}

.cbt-image {
  position: sticky;
  top: 100px;
}

.cbt-image img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(31, 96, 150, 0.18);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.cbt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  position: relative;
  z-index: 1;
}

.cbt-item {
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-left: 4px solid var(--secondary);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 16px rgba(31, 96, 150, 0.08);
  transition: all 0.4s ease;
}

.cbt-item:hover {
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 8px 28px rgba(31, 96, 150, 0.15);
  transform: translateY(-4px);
}

.cbt-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary);
}

.cbt-item p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* === Roadmap === */
#roadmap {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

#roadmap::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(47, 154, 208, 0.06) 0%, transparent 70%);
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.roadmap-item {
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 16px rgba(31, 96, 150, 0.06);
  transition: all 0.4s ease;
}

.roadmap-item:hover {
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 8px 28px rgba(31, 96, 150, 0.12);
  transform: translateY(-4px);
}

.roadmap-badge {
  display: inline-block;
  background: rgba(31, 96, 150, 0.1);
  backdrop-filter: blur(8px);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid rgba(31, 96, 150, 0.15);
}

.roadmap-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.roadmap-item p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* === Get Started (Web App CTA) === */
.get-started-section {
  background: var(--gradient);
  position: relative;
  overflow: hidden;
}

.get-started-section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  top: -120px;
  left: -120px;
  pointer-events: none;
  animation: blobMove2 14s ease-in-out infinite;
}

.get-started-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 1;
}

.get-started-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.get-started-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 28px;
}

.get-started-content .btn {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
}

.get-started-content .btn:hover {
  box-shadow: 0 6px 24px rgba(255, 255, 255, 0.3);
}

.get-started-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  padding: 14px 18px;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.3s ease;
}

.highlight-item:hover {
  background: rgba(255, 255, 255, 0.18);
}

.highlight-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* === Download === */
.download-section {
  text-align: center;
  background: linear-gradient(170deg, #e0ecf5 0%, #d4eaf7 50%, #e8f2fa 100%);
  position: relative;
  overflow: hidden;
}

.download-section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(31, 96, 150, 0.07) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.download-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: 0 8px 32px rgba(31, 96, 150, 0.1);
  text-align: left;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.download-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.download-info p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

.system-req {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 28px 32px;
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.system-req h4 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.system-req ul {
  list-style: disc;
  padding-left: 20px;
}

.system-req li {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

/* === Footer === */
.footer {
  background: var(--text);
  color: rgba(255, 255, 255, 0.7);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #fff;
}

.footer p {
  font-size: 0.9rem;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .pricing-card-featured {
    transform: none;
  }

  .pricing-card-featured:hover {
    transform: translateY(-4px);
  }

  .cbt-layout {
    grid-template-columns: 1fr;
  }

  .cbt-content .section-title,
  .cbt-content .section-subtitle {
    text-align: center;
    margin: 0 auto 48px;
    max-width: 600px;
  }

  .cbt-content .section-title {
    margin-bottom: 12px;
  }

  .cbt-image {
    position: static;
    max-width: 500px;
    margin: 32px auto 0;
  }

  .cbt-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .roadmap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .download-card {
    padding: 32px;
  }

  .get-started-card {
    grid-template-columns: 1fr;
    padding: 36px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(31, 96, 150, 0.2);
  }

  .header-nav.open {
    display: flex;
  }

  .header-nav a {
    font-size: 1.05rem;
    padding: 8px 0;
  }

  .hero {
    padding: 100px 0 50px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-logo {
    width: 160px;
    margin-bottom: 24px;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero::before {
    width: 250px;
    height: 250px;
    top: -60px;
    right: -60px;
  }

  .hero::after {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: -40px;
  }

  .section {
    padding: 56px 0;
  }

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

  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 32px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .cbt-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cbt-image {
    max-width: 100%;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .download-card {
    grid-template-columns: 1fr;
    padding: 28px 24px;
    gap: 24px;
    text-align: center;
  }

  .download-info p {
    text-align: left;
  }

  .download-info .btn {
    width: 100%;
  }

  .system-req {
    text-align: left;
  }

  .get-started-card {
    padding: 28px 24px;
    gap: 24px;
  }

  .get-started-content h2 {
    font-size: 1.3rem;
  }

  .get-started-content .btn {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 90px 0 44px;
  }

  .hero h1 {
    font-size: 1.4rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-lg {
    width: 100%;
    text-align: center;
    padding: 14px 24px;
  }

  .section {
    padding: 44px 0;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .download-card {
    padding: 24px 20px;
  }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}