:root {
  color-scheme: light;
  --surface-primary: #ffffff;
  --surface-mint: #ebf7f0;
  --surface-page: #f5f7f6;
  --brand: #52b788;
  --brand-ink: #2d7a53;
  --brand-soft: rgba(82, 183, 136, 0.14);
  --text-primary: #2d3732;
  --text-secondary: #405049;
  --text-muted: #66746d;
  --border-subtle: #d7e1db;
  --placeholder: #d8e8de;
  --white: #ffffff;
  --hero-top: #f4fbf7;
  --hero-bottom: #ebf7f0;
  --shadow-sm: 0 1px 2px rgba(45, 55, 50, 0.04), 0 8px 24px rgba(45, 55, 50, 0.06);
  --shadow-md: 0 2px 6px rgba(45, 55, 50, 0.05), 0 16px 40px rgba(45, 55, 50, 0.08);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-pill: 9999px;
  --container-padding: clamp(20px, 5vw, 80px);
  --content-max: 1280px;
  --section-space: clamp(64px, 8vw, 96px);
  --ease: 180ms ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text-primary);
  background: var(--surface-primary);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1, h2, h3, p, ul, dl, dt, dd { margin: 0; }

ul { padding: 0; list-style: none; }

button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

.icon-muted { color: var(--text-muted); }

.shell {
  width: min(var(--content-max), 100%);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition:
    background var(--ease),
    border-color var(--ease),
    color var(--ease),
    box-shadow var(--ease),
    transform var(--ease);
}

.btn-sm { min-height: 40px; padding: 0 20px; font-size: 14px; }

.header-legal-link {
  color: var(--brand-ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.header-legal-link:hover { color: var(--brand); }

.btn-lg { min-height: 52px; padding: 0 24px; }

.btn-primary {
  background: var(--brand);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(82, 183, 136, 0.28);
}

.btn-primary:hover {
  background: var(--brand-ink);
  box-shadow: 0 10px 24px rgba(45, 122, 83, 0.28);
}

.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
  border-color: var(--border-subtle);
  background: var(--white);
  color: var(--brand-ink);
}

.btn-secondary:hover {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border-subtle));
  background: var(--surface-mint);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  overflow: hidden;
  border-radius: 8px;
  flex-shrink: 0;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-bar {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.language-switch .icon { width: 16px; height: 16px; }

.language-switch button {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--ease);
}

.language-switch button[aria-pressed="true"] {
  color: var(--text-primary);
  font-weight: 700;
}

.language-switch button:not([aria-pressed="true"]):hover {
  color: var(--brand-ink);
}

.lang-sep { color: var(--text-muted); }

.header-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  border-top: 1px solid color-mix(in srgb, var(--border-subtle) 70%, transparent);
  font-size: 14px;
  font-weight: 500;
}

.header-nav a {
  position: relative;
  padding: 14px 12px;
  color: var(--text-secondary);
  transition: color var(--ease);
}

.header-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--ease);
}

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

.header-nav a.is-active {
  color: var(--brand-ink);
  font-weight: 600;
}

.header-nav a.is-active::after { transform: scaleX(1); }

/* Hero */

.hero {
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 60% at 78% 45%, rgba(82, 183, 136, 0.16), transparent 70%),
    linear-gradient(180deg, var(--hero-top) 0%, var(--hero-bottom) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  align-items: center;
  gap: clamp(40px, 6vw, 72px);
  min-height: 560px;
  padding-block: clamp(48px, 7vw, 80px);
}

.kicker {
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.hero .kicker {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0;
}

.hero h1 {
  margin-top: 18px;
  max-width: 14ch;
  font-size: clamp(36px, 4.6vw, 48px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.03em;
  white-space: pre-line;
}

.hero-sub {
  margin-top: 20px;
  max-width: 48ch;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 18px;
  min-height: 520px;
  padding-bottom: 8px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: min(440px, 90%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.85), rgba(82, 183, 136, 0.14) 42%, transparent 70%);
  pointer-events: none;
}

.phone-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.phone-wrap-front {
  z-index: 2;
  transform: translateY(-10px);
}

.phone-wrap-back {
  transform: translateY(18px);
}

.phone {
  display: flex;
  flex-direction: column;
  padding: 9px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 36px;
  background:
    linear-gradient(160deg, #2c3832 0%, #171e1a 55%, #121816 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 22px 50px rgba(45, 55, 50, 0.22);
}

.phone-front {
  width: 252px;
  min-height: 500px;
  border-radius: 38px;
  animation: phone-float 5.5s ease-in-out infinite;
}

.phone-back {
  width: 228px;
  min-height: 460px;
  opacity: 0.98;
  animation: phone-float 5.5s ease-in-out infinite 0.8s;
}

.phone-screen {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 420px;
  overflow: hidden;
  border-radius: 28px;
  background: #f4f6f5;
}

.phone-label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-align: center;
}

@keyframes phone-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.phone-screen > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Placeholders */

.placeholder { background: var(--placeholder); }

.placeholder-monstera { background: linear-gradient(145deg, #c5e6d0 0%, #7cb896 100%); }
.placeholder-pothos { background: linear-gradient(145deg, #d0e9c0 0%, #6faa72 100%); }
.placeholder-snake { background: linear-gradient(145deg, #d8ebcb 0%, #8aaa7a 100%); }
.placeholder-lavender { background: linear-gradient(145deg, #ddd0ea 0%, #9a8ab8 100%); }
.placeholder-fiddle { background: linear-gradient(145deg, #cee0c4 0%, #7a9a6a 100%); }
.placeholder-haworthia { background: linear-gradient(145deg, #e0ebd4 0%, #9ab88a 100%); }
.placeholder-orchid { background: linear-gradient(145deg, #ead4e2 0%, #b88aaa 100%); }
.placeholder-hydrocotyle { background: linear-gradient(145deg, #cce9db 0%, #6ab89a 100%); }
.placeholder-camera { background: linear-gradient(180deg, #d0e6d8 0%, #88b898 58%, #5a9070 100%); }

/* Sections */

.section {
  padding-block: var(--section-space);
}

.section-page { background: var(--surface-page); }

.section-heading {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}

.section-heading h2 {
  font-size: clamp(28px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-heading p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.55;
}

.section-cta {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

/* Steps */

.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.step-card {
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--border-subtle) 80%, transparent);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.step-card:hover {
  border-color: color-mix(in srgb, var(--brand) 35%, var(--border-subtle));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-badge {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: var(--brand);
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.step-card h3 {
  margin-top: 20px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.step-card p {
  margin-top: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Feature grid */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.feature-well {
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  border-radius: var(--radius-pill);
  background: var(--surface-mint);
  color: var(--brand-ink);
  transition: background var(--ease), transform var(--ease);
}

.feature-item:hover .feature-well {
  background: color-mix(in srgb, var(--brand) 18%, var(--surface-mint));
  transform: translateY(-2px);
}

.feature-well .icon { width: 32px; height: 32px; }

.feature-item h3 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.feature-item p {
  max-width: 150px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.45;
}

/* Split sections */

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
}

.split-reverse .split-visual { order: -1; }

.split-copy h2 {
  margin-top: 10px;
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
  white-space: pre-line;
}

.split-body {
  margin-top: 18px;
  max-width: 44ch;
  color: var(--text-secondary);
  line-height: 1.6;
}

.bullet-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.bullet-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
}

.bullet-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--brand);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--brand-soft);
}

.bullet-sm li { font-size: 13px; }

.bullet-sm li::before {
  width: 6px;
  height: 6px;
  box-shadow: none;
}

/* Result card */

.result-card {
  max-width: 360px;
  margin-inline: auto;
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.result-thumb {
  width: 100%;
  height: 180px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.result-card strong {
  display: block;
  margin-top: 16px;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.result-meta {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 14px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.chip {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--surface-page);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.chip-brand {
  background: var(--surface-mint);
  color: var(--brand-ink);
  font-weight: 600;
}

/* Wiki grid */

.wiki-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.wiki-card {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border-subtle) 75%, transparent);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.wiki-card:hover {
  border-color: color-mix(in srgb, var(--brand) 30%, var(--border-subtle));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.wiki-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.wiki-card h3 {
  padding: 16px 16px 4px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.wiki-card p {
  padding: 0 16px 16px;
  color: var(--text-muted);
  font-size: 13px;
}

/* Journey list */

.journey-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 420px;
  margin-inline: auto;
}

.journey-card {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--border-subtle) 80%, transparent);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.journey-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.journey-card strong {
  font-size: 15px;
  letter-spacing: -0.01em;
}

.journey-card p {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 12px;
}

.status-pill {
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.status-due { background: #fdeceb; color: #b34a4a; }
.status-soon { background: #fff3df; color: #9a6a1f; }
.status-ok { background: var(--surface-mint); color: var(--brand-ink); }

/* Dual cards */

.dual-card-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.info-card {
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--border-subtle) 80%, transparent);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.info-card h3 {
  margin-top: 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.info-card > p:not(.kicker) {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 20px;
}

.thumb {
  height: 96px;
  width: 100%;
  border-radius: var(--radius-sm);
  object-fit: cover;
  display: block;
}

.care-facts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.care-facts div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-page);
}

.care-facts dt {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
}

.care-facts dd {
  font-size: 13px;
  font-weight: 600;
  text-align: right;
}

/* More features */

.more-features {
  background: var(--white);
}

.more-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.more-card {
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--border-subtle) 70%, transparent);
  border-radius: var(--radius-md);
  background: var(--surface-page);
  transition: border-color var(--ease), background var(--ease);
}

.more-card:hover {
  border-color: color-mix(in srgb, var(--brand) 28%, var(--border-subtle));
  background: color-mix(in srgb, var(--surface-mint) 55%, var(--surface-page));
}

.more-card h3 {
  margin-top: 8px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.more-card > p:not(.kicker) {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
}

.more-card .bullet-list { margin-top: 16px; }

/* Download CTA */

.download-cta {
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(255, 255, 255, 0.55), transparent 60%),
    var(--surface-mint);
}

.download-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding-block: var(--section-space);
  text-align: center;
}

.download-inner h2 {
  max-width: 18ch;
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.download-inner > p {
  max-width: 42ch;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.55;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
}

/* Footer */

.site-footer {
  padding-block: 48px 40px;
  border-top: 1px solid var(--border-subtle);
  background: var(--white);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
}

.footer-brand { max-width: 280px; }

.brand-footer { font-size: 16px; }

.brand-footer .brand-mark {
  width: 28px;
  height: 28px;
}

.footer-brand p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}

.footer-links {
  display: flex;
  gap: 56px;
}

.footer-links h3 {
  margin-bottom: 14px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 700;
}

.footer-links a {
  display: block;
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 13px;
  transition: color var(--ease);
}

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

.footer-copy {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 13px;
}

/* About */

.about-hero {
  background:
    radial-gradient(ellipse 55% 70% at 85% 20%, rgba(82, 183, 136, 0.18), transparent 70%),
    linear-gradient(180deg, var(--hero-top) 0%, var(--hero-bottom) 100%);
}

.about-hero-inner {
  max-width: 720px;
  padding-block: clamp(56px, 9vw, 96px);
}

.about-hero h1 {
  margin-top: 16px;
  font-size: clamp(34px, 4.4vw, 48px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.about-hero-sub {
  margin-top: 20px;
  max-width: 48ch;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.6;
}

.about-mission {
  background: var(--white);
}

.about-mission-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.about-mission h2 {
  margin-top: 12px;
  max-width: 16ch;
  font-size: clamp(26px, 3.2vw, 34px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.about-mission-inner > p {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.65;
}

.about-build {
  background: var(--surface-page);
}

.about-build-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.about-build-card {
  padding: 28px 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.about-build-card h3 {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.about-build-card p {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.55;
}

.about-scope {
  background: var(--white);
}

.about-scope-list {
  display: grid;
  gap: 0;
  margin-top: 36px;
}

.about-scope-list > div {
  display: grid;
  grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
  gap: 16px 28px;
  padding-block: 22px;
  border-top: 1px solid var(--border-subtle);
}

.about-scope-list dt {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.about-scope-list dd {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.about-scope-list a {
  color: var(--brand-ink);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-scope-list a:hover { color: var(--brand); }

.about-contact {
  background: var(--surface-mint);
}

.about-contact-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.about-contact h2 {
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.about-contact-inner > div > p {
  margin-top: 12px;
  max-width: 42ch;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.55;
}

.about-email {
  display: inline-block;
  margin-top: 16px;
  color: var(--brand-ink);
  font-size: 16px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-email:hover { color: var(--brand); }

/* Responsive */

@media (max-width: 1100px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .wiki-grid { grid-template-columns: repeat(2, 1fr); }
  .more-features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .header-toolbar {
    gap: 16px;
  }

  .header-nav {
    justify-content: flex-start;
    gap: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .header-nav::-webkit-scrollbar { display: none; }

  .header-nav a { white-space: nowrap; }

  .about-mission-inner,
  .about-build-grid {
    grid-template-columns: 1fr;
  }

  .about-scope-list > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .about-mission h2 { max-width: none; }

  .hero-inner {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-block: 40px 56px;
  }

  .hero h1 { max-width: none; }

  .hero-visual { min-height: 460px; }

  .phone-wrap-front,
  .phone-wrap-back {
    transform: none;
  }

  .steps-row,
  .split-section,
  .dual-card-row {
    grid-template-columns: 1fr;
  }

  .split-reverse .split-visual { order: 0; }

  .footer-top {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 32px;
  }
}

@media (max-width: 600px) {
  .header-actions .btn-sm { display: none; }

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

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

  .phone-wrap-back { display: none; }

  .phone-front {
    width: min(260px, 74vw);
    min-height: 520px;
    animation: none;
  }

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

  .download-actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }

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

  .step-card:hover,
  .wiki-card:hover,
  .feature-item:hover .feature-well {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}