/* Sophisticated, elegant design with unique palette */

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

:root {
  --slate-50: #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-900: #0F172A;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;

  /* Elegant monochrome: Refined charcoal & warm cream */
  --charcoal: #2C2C2E;
  --charcoal-dark: #1C1C1E;
  --charcoal-light: #3A3A3C;
  --cream: #FDFCFA;
  --cream-dark: #F5F3F0;

  /* Subtle warm accents */
  --warm-gray: #8E8E93;
  --warm-border: rgba(44, 44, 46, 0.12);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  --shadow-primary: 0 4px 14px 0 rgba(28, 28, 30, 0.25);
  --shadow-primary-hover: 0 8px 24px 0 rgba(28, 28, 30, 0.35);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  color: var(--slate-900);
  background: var(--slate-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(241, 245, 249, 0.8);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--slate-900);
}

.nav-cta {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate-700);
  text-decoration: none;
  transition: all 0.2s ease;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
}

.nav-cta:hover {
  color: var(--slate-900);
  background: var(--slate-50);
  border-color: var(--slate-100);
}

.nav-cta:focus {
  outline: none;
  border-color: var(--charcoal);
  color: var(--charcoal);
}

/* Hero */
.hero {
  padding: 140px 32px 100px;
  background: linear-gradient(to bottom, #ffffff 0%, var(--slate-50) 100%);
}

.hero-container {
  max-width: 840px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 12px;
  background: var(--slate-100);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--slate-600);
  margin-bottom: 28px;
}

.hero-title {
  font-size: 72px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--slate-900);
}

.hero-description {
  font-size: 21px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--slate-600);
  margin-bottom: 64px;
}

/* Video */
.video-container {
  margin-bottom: 56px;
}

.video-placeholder {
  width: 100%;
  max-width: 840px;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--slate-100) 0%, #ffffff 100%);
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.video-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(44, 44, 46, 0.04) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.video-placeholder:hover::before {
  opacity: 1;
}

.video-placeholder:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.15);
  border-color: var(--warm-border);
}

.play-button {
  width: 80px;
  height: 80px;
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--charcoal);
  box-shadow: var(--shadow-lg);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 1;
}

.video-placeholder:hover .play-button {
  transform: scale(1.1);
  background: var(--charcoal);
  color: white;
  box-shadow: var(--shadow-primary-hover);
}

.video-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--slate-600);
  position: relative;
  z-index: 1;
}

/* Pricing Hero */
.pricing-hero {
  max-width: 460px;
  margin: 0 auto;
  padding: 48px;
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow-xl);
}

.price-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 32px;
}

.price-original {
  font-size: 28px;
  font-weight: 400;
  color: var(--slate-400);
  text-decoration: line-through;
  letter-spacing: -0.01em;
}

.price-current {
  display: flex;
  align-items: flex-start;
  gap: 4px;
}

.currency {
  font-size: 32px;
  font-weight: 600;
  color: var(--slate-900);
  margin-top: 8px;
}

.amount {
  font-size: 72px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--slate-900);
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 18px;
  background: var(--charcoal-dark);
  color: var(--cream);
  text-align: center;
  border-radius: 12px;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-hover);
  background: var(--charcoal);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-large {
  padding: 20px;
  font-size: 18px;
}

.pricing-meta {
  margin-top: 20px;
  font-size: 13px;
  color: var(--slate-500);
  text-align: center;
  letter-spacing: -0.01em;
}

/* Use Cases */
.use-cases {
  padding: 120px 32px;
  background: linear-gradient(to bottom, #ffffff 0%, var(--slate-50) 100%);
}

.use-cases-container {
  max-width: 1200px;
  margin: 0 auto;
}

.use-cases-headline {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 72px;
  color: var(--slate-900);
}

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

.use-case-card {
  padding: 36px;
  background: #ffffff;
  border-radius: 16px;
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
}

.use-case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--warm-border);
}

.use-case-icon {
  font-size: 36px;
  margin-bottom: 20px;
  display: inline-block;
}

.use-case-card h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--slate-900);
}

.use-case-card p {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--slate-600);
}

/* Steps */
.steps {
  padding: 120px 32px;
  background: #ffffff;
}

.steps-container {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--charcoal-dark);
  color: var(--cream);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-primary);
}

.step-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--slate-900);
}

.step-text {
  font-size: 17px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--slate-600);
}

/* Value */
.value {
  padding: 120px 32px;
  background: var(--slate-50);
}

.value-container {
  max-width: 1080px;
  margin: 0 auto;
}

.value-headline {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 72px;
  color: var(--slate-900);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}

.value-card {
  padding: 40px;
  background: #ffffff;
  border-radius: 16px;
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--warm-border);
}

.value-card h3 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--slate-900);
}

.value-card p {
  font-size: 17px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--slate-600);
}

/* Features */
.features {
  padding: 120px 32px;
  background: #ffffff;
}

.features-container {
  max-width: 900px;
  margin: 0 auto;
}

.features-title {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 56px;
  color: var(--slate-900);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-item {
  padding: 20px 24px;
  background: var(--slate-50);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--slate-700);
  letter-spacing: -0.01em;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.feature-item:hover {
  background: #ffffff;
  border-color: var(--slate-100);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* Final CTA */
.final-cta {
  padding: 140px 32px;
  background: var(--slate-50);
}

.final-container {
  max-width: 540px;
  margin: 0 auto;
  text-align: center;
  padding: 72px 56px;
  background: var(--charcoal-dark);
  border-radius: 24px;
  box-shadow: 0 20px 40px -12px rgba(28, 28, 30, 0.4);
  position: relative;
  overflow: hidden;
}

.final-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.final-container * {
  position: relative;
}

.final-title {
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  color: white;
}

.final-pricing {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.final-original {
  font-size: 32px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: line-through;
  letter-spacing: -0.01em;
}

.final-price {
  font-size: 72px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: white;
}

.final-container .btn-primary {
  background: var(--cream);
  color: var(--charcoal-dark);
  box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.2);
}

.final-container .btn-primary:hover {
  background: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px 0 rgba(0, 0, 0, 0.25);
  color: var(--charcoal-dark);
}

.final-note {
  margin-top: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: -0.01em;
}

.refund-link {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.refund-link:hover {
  color: white;
}

/* Floating Badge */
.floating-badge {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--slate-200);
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  text-decoration: none;
  color: var(--slate-600);
  font-size: 13px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 100;
}

.floating-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
  border-color: var(--slate-300);
  color: var(--charcoal-dark);
}

.floating-badge svg {
  flex-shrink: 0;
}

.floating-badge strong {
  color: var(--charcoal-dark);
  font-weight: 600;
}

/* Footer */
.footer {
  padding: 48px 32px;
  background: #ffffff;
  border-top: 1px solid var(--slate-100);
}

.footer-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  font-size: 14px;
  color: var(--slate-500);
}

.footer-right {
  display: flex;
  gap: 32px;
}

.footer-right a {
  font-size: 14px;
  color: var(--slate-600);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-right a:hover {
  color: var(--slate-900);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 56px;
  }

  .hero-description {
    font-size: 19px;
  }

  .use-cases-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .steps-container {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .value-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 640px) {
  .floating-badge {
    bottom: 16px;
    right: 16px;
    font-size: 12px;
    padding: 8px 12px;
  }

  .floating-badge span {
    max-width: 140px;
  }

  .nav-container {
    padding: 16px 24px;
  }

  .hero {
    padding: 120px 24px 80px;
  }

  .hero-title {
    font-size: 40px;
    letter-spacing: -0.02em;
  }

  .hero-description {
    font-size: 17px;
  }

  .amount {
    font-size: 56px;
  }

  .pricing-hero {
    padding: 36px 32px;
  }

  .use-cases {
    padding: 80px 24px;
  }

  .use-cases-headline {
    font-size: 36px;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .steps {
    padding: 80px 24px;
  }

  .value {
    padding: 80px 24px;
  }

  .value-headline {
    font-size: 36px;
  }

  .features {
    padding: 80px 24px;
  }

  .features-title {
    font-size: 36px;
  }

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

  .final-cta {
    padding: 100px 24px;
  }

  .final-container {
    padding: 56px 32px;
  }

  .final-title {
    font-size: 32px;
  }

  .final-price {
    font-size: 56px;
  }

  .footer-container {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-right {
    flex-direction: column;
    gap: 16px;
  }
}