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

  :root {
    --black: #121312;
    --dark: #18181B;
    --card: #1c1c1c;
    --border: rgba(255,255,255,0.08);
    --white: #ffffff;
    --muted: #ffffff73;
    --accent: #e8f5e2;
    --accent-dim: rgba(232,245,226,0.12);
    --accent-mid: rgb(151, 196, 89);
    --serif: 'Instrument Serif', Georgia, serif;
    --sans: 'DM Sans', system-ui, sans-serif;
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: var(--sans);
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .logo {
    font-family: var(--serif);
    font-size: 36px;
    letter-spacing: -0.5px;
    color: var(--white);
    text-decoration: none;
  }
  .logo span { color: var(--accent-mid); font-style: italic; }
  .nav-cta {
    font-size: 13px;
    font-weight: 500;
    color: var(--black);
    background: var(--white);
    padding: 8px 20px;
    border-radius: 100px;
    text-decoration: none;
    transition: opacity 0.2s;
  }
  .nav-cta:hover { opacity: 0.85; }

  .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 20%, rgba(97,196,89,0.07) 0%, transparent 70%);
    pointer-events: none;
  }
  h1 {
    font-family: var(--serif);
    font-size: clamp(48px, 8vw, 88px);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -1px;
    margin-bottom: 24px;
    max-width: 800px;
  }
  h1 em {
    font-style: italic;
    color: var(--accent-mid);
  }
  .hero-sub {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--muted);
    max-width: 520px;
    margin-bottom: 36px;
    font-weight: 300;
    line-height: 1.7;
  }
  .cta-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--black);
    background: var(--accent-mid);
    padding: 14px 28px;
    border-radius: 100px;
    text-decoration: none;
    transition: transform 0.15s, opacity 0.15s;
  }
  .btn-primary:hover { transform: translateY(-2px); opacity: 0.92; }
  .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--black);
    background: var(--white);
    padding: 14px 28px;
    border-radius: 100px;
    border: 1px solid var(--border);
    text-decoration: none;
    transition: transform 0.15s, border-color 0.15s;
  }
  .btn-secondary:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.25);}
  .btn-store {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--white);
    background: transparent;
    padding: 14px 28px;
    border-radius: 100px;
    border: 1px solid rgba(255,255,255,0.18);
    text-decoration: none;
    transition: transform 0.15s, border-color 0.15s, background 0.15s;
  }
  .btn-store:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.04); }
  .btn-icon { width: 20px; height: 20px; }

  .mockup-wrap {
    margin-top: 72px;
    position: relative;
    width: 100%;
    max-width: 360px;
  }
  .phone {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 40px;
    overflow: hidden;
    padding: 16px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.6);
  }
  .phone-inner {
    background: var(--black);
    border-radius: 28px;
    overflow: hidden;
  }
  .phone-appbar {
    background: var(--black);
    padding: 16px 16px 12px;
    border-bottom: 1px solid var(--border);
  }
  .phone-appbar-row {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .phone-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    display: flex; 
    align-items: center; 
    justify-content: center;
    flex-shrink: 0;
  }
  .phone-dropdown {
    flex: 1;
    background: var(--card);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--white);
    text-align: start;
  }
  .phone-body { padding: 16px; }
  .phone-section-label {
    font-size: 11px;
    color: var(--accent-mid);
    margin-bottom: 8px;
    text-align: left;
  }
  .phone-item {
    background: var(--card);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .phone-checkbox {
    width: 20px; height: 20px;
    border-radius: 5px;
    border: 1.5px solid rgba(151, 196, 89, 1);
    flex-shrink: 0;
  }
  .phone-checkbox.done {
    background: #99999A;
    border-color: #7a7a7a;
    display: flex; align-items: center; justify-content: center;
  }
  .phone-item-text { flex: 1; }
  .phone-item-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--white);
    text-align: left;
  }
  .phone-item-name.done {
    text-decoration: line-through;
    color: var(--muted);
  }
  .phone-item-sub { font-size: 11px; color: var(--muted); text-align: left;}
  .phone-item-qty {
    font-size: 12px;
    color: var(--muted);
    margin-left: 4px;
  }
  .phone-icons {
    display: flex;
    gap: 8px;
    align-items: center;
  }
  .phone-icon {
    width: 16px; height: 16px;
    opacity: 0.3;
  }

  section { padding: 100px 24px; }
  .container { max-width: 1040px; margin: 0 auto; }

  .how-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
  }
  .how-title {
    font-family: var(--serif);
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 64px;
    max-width: 600px;
  }
  .steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2px;
  }
  .step {
    background: var(--card);
    padding: 36px 28px;
    position: relative;
    border-radius: 4px;
  }
  .step:first-child { border-radius: 20px 4px 4px 20px; }
  .step:last-child { border-radius: 4px 20px 20px 4px; }

  @media (max-width: 600px) {
    .step:first-child { border-radius: 20px 20px 4px 4px; }
    .step:last-child { border-radius: 4px 4px 20px 20px; }
  }
  .step-num {
    font-family: var(--serif);
    font-size: 48px;
    font-style: italic;
    color: var(--accent-mid);
    line-height: 1;
    margin-bottom: 20px;
  }
  .step-title {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 8px;
  }
  .step-desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
  }

  .features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 64px;
}
.feature {
  background: var(--card);
  padding: 32px 28px;
  border-radius: 4px;
}
.feature:first-child { border-radius: 20px 4px 4px 4px; }
.feature:nth-child(2) { border-radius: 4px 20px 4px 4px; }
.feature:nth-child(3) { border-radius: 4px 4px 4px 20px; }
.feature:last-child { border-radius: 4px 4px 20px 4px; }

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .feature:first-child { border-radius: 20px 20px 4px 4px; }
  .feature:nth-child(2) { border-radius: 4px; }
  .feature:nth-child(3) { border-radius: 4px; }
  .feature:last-child { border-radius: 4px 4px 20px 20px; }
}
  .feature-icon {
    width: 40px; height: 40px;
    background: var(--accent-dim);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
    font-size: 18px;
  }
  .feature-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
  }
  .feature-desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.65;
  }

  .divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
  }

.cta-section {
  text-align: center;
  padding: 120px 24px;
}
.cta-section h2 {
  font-family: var(--serif);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 16px;
}
.cta-section h2 em { font-style: italic; color: var(--accent-mid); }
.cta-section .cta-desc {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 16px;
}
.cta-section .cta-soon {
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
  margin-top: 32px;
}

  footer {
    border-top: 1px solid var(--border);
    padding: 32px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
  }
  footer p { font-size: 13px; color: var(--muted); }
  .footer-link {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: opacity 0.2s;
}
.footer-link:hover { opacity: 0.6; }

  @media (max-width: 600px) {
    nav { padding: 16px 20px; }
    section { padding: 72px 20px; }
    footer { padding: 24px 20px; flex-direction: column; text-align: center; }
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  .hero > * { animation: fadeUp 0.6s ease both; }
  .eyebrow { animation-delay: 0.1s; }
  h1 { animation-delay: 0.2s; }
  .hero-sub { animation-delay: 0.3s; }
  .cta-group { animation-delay: 0.4s; }
  .mockup-wrap { animation-delay: 0.5s; }