:root {
  --primary: #15a996;
  --primary-dark: #087d73;
  --primary-soft: #dff8f4;
  --ink: #10201f;
  --muted: #5d6f6d;
  --line: #dce9e6;
  --paper: #fbfefd;
  --panel: #ffffff;
  --accent: #f5b84b;
  --danger: #b24036;
  --shadow: 0 24px 70px rgba(12, 86, 79, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
}

body.no-nav {
  background: #ffffff;
}

img {
  max-width: 100%;
  display: block;
}

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

p {
  color: var(--muted);
  line-height: 1.7;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 254, 253, 0.92);
  border-bottom: 1px solid rgba(220, 233, 230, 0.9);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.05rem;
}

.brand img {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 10px 28px rgba(8, 125, 115, 0.18);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #36514e;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  color: var(--primary-dark);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  font: inherit;
  color: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(21, 169, 150, 0.26);
  cursor: pointer;
}

.btn.secondary {
  background: #fff;
  color: var(--primary-dark);
  border-color: var(--line);
  box-shadow: none;
}

.btn.dark {
  background: #112421;
  box-shadow: none;
}

.section {
  padding: 92px 0;
}

.section.tint {
  background: #eefaf7;
}

.wrap {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--primary);
}

.hero {
  min-height: calc(100vh - 76px);
  padding: 84px 0 70px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(223, 248, 244, 0.95), rgba(255, 255, 255, 0.72)),
    radial-gradient(circle at 88% 20%, rgba(245, 184, 75, 0.24), transparent 32%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 54px;
  align-items: center;
}

.hero h1,
.page-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 650px;
}

.hero-copy p {
  font-size: 1.12rem;
  max-width: 610px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-image {
  position: relative;
}

.hero-image img,
.feature-photo img,
.about-photo img,
.download-photo img {
  width: 100%;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.hero-image img {
  aspect-ratio: 5 / 4;
}

.ledger-preview {
  position: absolute;
  left: -30px;
  bottom: -30px;
  width: min(310px, 78%);
  padding: 18px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  box-shadow: 0 20px 48px rgba(16, 32, 31, 0.16);
}

.ledger-preview strong {
  display: block;
  margin-bottom: 12px;
}

.meter {
  height: 9px;
  border-radius: 99px;
  background: #dcefeb;
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  width: 67%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.mini-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.mini-stats div {
  padding: 10px;
  border-radius: 8px;
  background: #f5fbfa;
  color: var(--muted);
  font-size: 0.82rem;
}

.mini-stats b {
  display: block;
  color: var(--ink);
  font-size: 1rem;
}

.section-head {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-head h2,
.split-copy h2,
.legal h2,
.contact-panel h2 {
  margin: 10px 0 14px;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 54px;
  align-items: center;
}

.feature-photo img,
.about-photo img,
.download-photo img {
  aspect-ratio: 4 / 3;
}

.feature-stack {
  display: grid;
  gap: 16px;
}

.feature-row,
.value-item,
.step,
.legal-block,
.contact-card,
.requirement,
.release-note {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.feature-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  padding: 18px;
  align-items: start;
}

.glyph {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 900;
  font-size: 0.95rem;
}

.feature-row h3,
.value-item h3,
.step h3,
.legal-block h2,
.contact-card h3,
.requirement h3 {
  margin: 0 0 8px;
  letter-spacing: 0;
}

.feature-row p,
.value-item p,
.step p,
.legal-block p,
.contact-card p,
.requirement p {
  margin: 0;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.value-item {
  padding: 22px;
  min-height: 188px;
}

.value-item .number {
  display: block;
  color: var(--primary-dark);
  font-weight: 900;
  font-size: 2rem;
  margin-bottom: 18px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.step {
  padding: 26px;
  position: relative;
  overflow: hidden;
}

.step::before {
  content: attr(data-step);
  position: absolute;
  right: 18px;
  top: 12px;
  color: rgba(21, 169, 150, 0.13);
  font-size: 4.8rem;
  line-height: 1;
  font-weight: 900;
}

.quote-band {
  background: #112421;
  color: #fff;
  padding: 64px;
  border-radius: 8px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}

.quote-band p,
.quote-band small {
  color: rgba(255, 255, 255, 0.76);
}

.quote-band strong {
  display: block;
  margin-bottom: 12px;
  font-size: 1.18rem;
}

.download-strip {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  padding: 46px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
}

.download-strip p {
  color: rgba(255, 255, 255, 0.82);
}

.store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.store {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 18px;
  border-radius: 8px;
  background: #111;
  color: #fff;
  font-weight: 800;
}

.store.light {
  background: #fff;
  color: #112421;
}

.footer {
  padding: 46px 0;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
}

.page-hero {
  padding: 84px 0 60px;
  background:
    linear-gradient(135deg, rgba(223, 248, 244, 0.96), #fff),
    radial-gradient(circle at 85% 25%, rgba(245, 184, 75, 0.22), transparent 30%);
}

.page-hero p {
  max-width: 760px;
  font-size: 1.08rem;
}

.about-grid,
.download-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: start;
}

.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.principle {
  border-left: 4px solid var(--primary);
  padding: 18px 18px 18px 20px;
  background: #fff;
  border-radius: 0 8px 8px 0;
}

.principle h3 {
  margin: 0 0 8px;
}

.principle p {
  margin: 0;
}

.legal-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  align-items: start;
}

.legal-nav {
  position: sticky;
  top: 98px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
}

.legal-nav a,
.legal-nav span {
  display: block;
  padding: 10px 0;
  color: var(--muted);
}

.legal {
  display: grid;
  gap: 18px;
}

.legal-block {
  padding: 28px;
}

.legal-block ul {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.8;
}

.notice {
  border: 1px solid rgba(21, 169, 150, 0.35);
  border-radius: 8px;
  padding: 18px;
  background: var(--primary-soft);
  color: #164a45;
}

.contact-panel {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

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

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.field.full {
  grid-column: 1 / -1;
}

label {
  font-weight: 800;
  color: #263d39;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 48px;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: #fbfefd;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid rgba(21, 169, 150, 0.18);
  border-color: var(--primary);
}

.checkline {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  line-height: 1.5;
}

.checkline input {
  width: 18px;
  min-height: 18px;
  margin-top: 3px;
}

.form-message {
  min-height: 24px;
  margin-top: 14px;
  font-weight: 800;
}

.form-message.error {
  color: var(--danger);
}

.form-message.success {
  color: var(--primary-dark);
}

.contact-cards {
  display: grid;
  gap: 16px;
}

.contact-card {
  padding: 24px;
}

.requirements {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.requirement,
.release-note {
  padding: 24px;
}

.release-note ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.8;
}

.h5-shell {
  padding: 28px 18px 44px;
}

.h5-logo {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  margin-bottom: 24px;
}

.h5-section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.h5-section h1 {
  margin: 0 0 14px;
  font-size: 2.35rem;
  line-height: 1.04;
}

.h5-section h2 {
  margin: 0 0 12px;
  font-size: 1.65rem;
}

.h5-pill {
  display: inline-block;
  margin: 0 8px 8px 0;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 68px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .nav-links a {
    padding: 13px 10px;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  .hero-grid,
  .split,
  .about-grid,
  .download-grid,
  .contact-grid,
  .download-strip,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .ledger-preview {
    position: static;
    width: 100%;
    margin-top: 16px;
  }

  .value-grid,
  .steps,
  .quote-band,
  .principles,
  .requirements {
    grid-template-columns: 1fr;
  }

  .legal-nav {
    position: static;
  }

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

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

  .section {
    padding: 64px 0;
  }

  .quote-band,
  .download-strip {
    padding: 28px;
  }
}

@media (max-width: 560px) {
  .wrap,
  .nav {
    width: min(100% - 24px, 1160px);
  }

  .hero h1,
  .page-hero h1 {
    font-size: 2.55rem;
  }

  .section-head h2,
  .split-copy h2,
  .legal h2,
  .contact-panel h2 {
    font-size: 2rem;
  }

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

  .btn,
  .store {
    width: 100%;
  }
}