/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #0F6E56;
  --primary-light: #E1F5EE;
  --bg: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #6B6B6B;
  --walke-body: #2C2C2A;
  --walke-belly: #FAEEDA;
  --walke-accent: #EF9F27;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
}

a {
  color: var(--primary);
  text-decoration: none;
}

/* === Hero === */
.hero {
  padding: 80px 0 60px;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 48px;
  width: 100%;
}

.hero-content {
  flex: 1;
}

.hero h1 {
  font-size: 52px;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 440px;
}

.hero-walke {
  flex-shrink: 0;
}

.app-store-btn {
  display: inline-block;
  transition: opacity 0.2s;
}

.app-store-btn:hover {
  opacity: 0.8;
}

/* === Problem === */
.problem {
  padding: 80px 0;
  background: #FAFAFA;
}

.problem-text {
  font-size: 24px;
  text-align: center;
  margin-bottom: 32px;
  color: var(--text-secondary);
}

.problem-text strong {
  color: var(--text);
}

.problem-text:last-child {
  margin-bottom: 0;
}

/* === Meet Walke === */
.meet-walke {
  padding: 100px 0;
}

.meet-walke-content {
  display: flex;
  align-items: flex-start;
  gap: 56px;
}

.meet-walke-text {
  flex: 1;
}

.meet-walke h2 {
  font-size: 40px;
  margin-bottom: 24px;
}

.speech-bubble {
  background: var(--primary-light);
  border-radius: 20px;
  padding: 24px 28px;
  position: relative;
  margin-bottom: 32px;
}

.speech-bubble::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 24px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 14px solid var(--primary-light);
}

.speech-bubble p {
  font-size: 18px;
  color: var(--primary);
  font-style: italic;
  font-weight: 500;
}

.speech-bubble--small {
  max-width: 480px;
  margin: 0 auto;
}

.speech-bubble--small::before {
  display: none;
}

.walke-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.walke-features li {
  padding-left: 28px;
  position: relative;
  color: var(--text-secondary);
}

.walke-features li::before {
  content: '🐧';
  position: absolute;
  left: 0;
  top: 0;
  font-size: 16px;
}

.walke-features li strong {
  color: var(--text);
}

/* === How It Works === */
.how-it-works {
  padding: 100px 0;
  background: var(--primary-light);
}

.how-it-works h2 {
  font-size: 40px;
  text-align: center;
  margin-bottom: 56px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* === Transformation === */
.transformation {
  padding: 100px 0;
}

.transform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

.transform-card {
  border-radius: 20px;
  padding: 36px;
}

.transform-card.before {
  background: #FFF5F5;
}

.transform-card.after {
  background: var(--primary-light);
}

.transform-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
}

.transform-card.before h3 {
  color: #A32D2D;
}

.transform-card.after h3 {
  color: var(--primary);
}

.transform-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.transform-card.before li {
  color: #6B4444;
}

.transform-card.after li {
  color: #1A5C47;
}

.transform-card li::before {
  margin-right: 8px;
}

.transform-card.before li::before {
  content: '✕';
  color: #A32D2D;
  font-weight: 700;
}

.transform-card.after li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
}

.walke-bubble-center {
  text-align: center;
}

/* === Pricing === */
.pricing {
  padding: 100px 0;
  background: #FAFAFA;
  text-align: center;
}

.pricing h2 {
  font-size: 40px;
  margin-bottom: 40px;
}

.price-card {
  max-width: 400px;
  margin: 0 auto;
  background: #fff;
  border-radius: 24px;
  padding: 48px 40px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.price-amount {
  margin-bottom: 4px;
}

.price-big {
  font-size: 48px;
  font-weight: 700;
  color: var(--text);
}

.price-period {
  font-size: 20px;
  color: var(--text-secondary);
}

.price-monthly {
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 28px;
}

.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.price-features li {
  padding-left: 24px;
  position: relative;
  color: var(--text-secondary);
}

.price-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.price-card .app-store-btn {
  margin-bottom: 16px;
}

.price-note {
  font-size: 14px;
  color: var(--text-secondary);
}

/* === Footer === */
.footer {
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid #EEEEEE;
}

.footer-walke {
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-tagline {
  font-size: 14px;
  color: var(--text-secondary);
}

/* === Responsive === */
@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .hero {
    padding: 60px 0 40px;
    min-height: auto;
  }

  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-walke svg {
    width: 200px;
    height: auto;
  }

  .problem-text {
    font-size: 20px;
  }

  .meet-walke-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .meet-walke h2 {
    font-size: 32px;
  }

  .speech-bubble::before {
    display: none;
  }

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

  .how-it-works h2,
  .pricing h2 {
    font-size: 32px;
  }

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

  .price-big {
    font-size: 40px;
  }

  .price-card {
    padding: 36px 28px;
  }

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