:root {
  --once-forest: #2d594b;
  --once-forest-dark: #173c32;
  --once-cream: #f6f5ef;
  --once-lavender: #e9e5f3;
  --once-ink: #263f38;
  --once-muted: #617069;
  --once-line: #cfd9d2;
  --once-white: #ffffff;
  --once-focus: #9d5b24;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.once-page {
  margin: 0;
  color: var(--once-ink);
  background: var(--once-cream);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

.once-page img {
  display: block;
  max-width: 100%;
  height: auto;
}

.once-page a {
  color: inherit;
}

.once-page a:focus-visible,
.once-page button:focus-visible,
.once-page summary:focus-visible {
  outline: 3px solid var(--once-focus);
  outline-offset: 4px;
}

.once-shell {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.once-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgb(38 63 56 / 12%);
  background: rgb(246 245 239 / 94%);
  backdrop-filter: blur(12px);
}

.once-header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.once-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 760;
}

.once-brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
}

.once-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 18px;
  font-size: 0.93rem;
}

.once-nav a {
  padding-block: 8px;
  text-decoration: none;
  color: var(--once-muted);
}

.once-nav a[aria-current="page"] {
  color: var(--once-forest-dark);
  font-weight: 720;
  box-shadow: inset 0 -2px var(--once-forest);
}

.once-hero {
  min-height: min(780px, calc(100vh - 68px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  align-items: center;
  gap: clamp(40px, 8vw, 110px);
  padding-block: clamp(64px, 10vw, 120px);
}

.once-eyebrow {
  margin: 0 0 14px;
  color: var(--once-forest);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.once-hero h1,
.once-section h2,
.once-document h1,
.once-manual-index h1 {
  margin: 0;
  color: var(--once-forest-dark);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: 0;
}

.once-hero h1 {
  max-width: 14ch;
  font-size: clamp(2.65rem, 5vw, 4.35rem);
}

.once-hero-copy > p:not(.once-eyebrow):not(.once-status) {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--once-muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.once-status {
  display: inline-flex;
  margin: 24px 0 0;
  padding: 8px 12px;
  border: 1px solid var(--once-line);
  border-radius: 6px;
  color: var(--once-forest-dark);
  background: var(--once-white);
  font-size: 0.9rem;
  font-weight: 690;
}

.once-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.once-page .once-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border: 1px solid var(--once-forest);
  border-radius: 6px;
  color: var(--once-white);
  background: var(--once-forest);
  text-decoration: none;
  font-weight: 730;
}

.once-page .once-button-secondary {
  color: var(--once-forest-dark);
  border-color: var(--once-line);
  background: var(--once-white);
}

.once-phone-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 580px;
}

.once-phone-stage::before {
  content: "";
  position: absolute;
  inset: 8% 0 6% 10%;
  border-radius: 48% 52% 45% 55%;
  background: var(--once-lavender);
}

.once-phone-stage img,
.once-screen-figure img {
  position: relative;
  width: min(100%, 330px);
  max-height: 680px;
  object-fit: contain;
  border: 1px solid rgb(23 60 50 / 16%);
  border-radius: 28px;
  box-shadow: 0 22px 60px rgb(23 60 50 / 14%);
}

.once-caption {
  max-width: 520px;
  margin: 14px auto 0;
  color: var(--once-muted);
  font-size: 0.86rem;
  text-align: center;
}

.once-screen-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: clamp(28px, 6vw, 72px);
  margin-top: 56px;
}

.once-gallery-figure {
  min-width: 0;
  margin: 0;
  text-align: center;
}

.once-gallery-figure img {
  width: min(100%, 330px);
  max-height: 620px;
  margin-inline: auto;
  object-fit: contain;
  border: 1px solid rgb(23 60 50 / 16%);
  border-radius: 24px;
  box-shadow: 0 18px 48px rgb(23 60 50 / 13%);
}

.once-band-forest .once-caption {
  color: #dce8e3;
}

.once-sharing-notes {
  grid-template-columns: 1fr;
}

.once-band {
  padding-block: clamp(76px, 10vw, 128px);
}

.once-band-white {
  background: var(--once-white);
}

.once-band-lavender {
  background: var(--once-lavender);
}

.once-band-forest {
  color: var(--once-white);
  background: var(--once-forest-dark);
}

.once-band-forest .once-eyebrow,
.once-band-forest h2,
.once-band-forest p {
  color: var(--once-white);
}

.once-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(300px, 1fr);
  align-items: center;
  gap: clamp(44px, 8vw, 112px);
}

.once-section-reverse .once-section-copy {
  order: 2;
}

.once-section h2 {
  max-width: 17ch;
  font-size: clamp(2rem, 4vw, 3.35rem);
}

.once-section-copy > p:not(.once-eyebrow) {
  max-width: 610px;
  margin: 22px 0 0;
  color: var(--once-muted);
  font-size: 1.08rem;
}

.once-screen-figure {
  margin: 0;
  text-align: center;
}

.once-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 40px;
  border: 1px solid var(--once-line);
  background: var(--once-line);
}

.once-step {
  min-height: 180px;
  padding: 30px;
  background: var(--once-white);
}

.once-step strong {
  display: block;
  margin-bottom: 16px;
  color: var(--once-forest);
  font-size: 0.82rem;
}

.once-step span {
  font-size: 1.08rem;
  font-weight: 710;
}

.once-price {
  max-width: 860px;
  text-align: center;
}

.once-price h2 {
  max-width: none;
}

.once-price p {
  max-width: 760px;
  margin: 24px auto 0;
}

.once-limit {
  padding-block: 54px;
  border-top: 1px solid var(--once-line);
}

.once-limit strong {
  color: var(--once-forest-dark);
}

.once-footer {
  padding-block: 48px;
  color: var(--once-muted);
  background: var(--once-white);
  border-top: 1px solid var(--once-line);
}

.once-footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.once-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.once-footer a {
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.once-doc-hero {
  padding-block: 72px 46px;
}

.once-doc-hero h1,
.once-manual-index h1 {
  max-width: 20ch;
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.once-doc-hero > p:not(.once-eyebrow),
.once-manual-index > p:not(.once-eyebrow) {
  max-width: 720px;
  color: var(--once-muted);
  font-size: 1.08rem;
}

.once-platform-note,
.once-policy-status {
  margin: 28px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--once-forest);
  background: var(--once-lavender);
}

.once-manual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 90px;
}

.once-manual-group {
  grid-column: 1 / -1;
  margin: 34px 0 0;
  font-size: 1.45rem;
}

.once-chapter-card {
  display: flex;
  flex-direction: column;
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--once-line);
  border-radius: 7px;
  background: var(--once-white);
  text-decoration: none;
}

.once-chapter-card span {
  color: var(--once-forest);
  font-size: 0.78rem;
  font-weight: 800;
}

.once-chapter-card strong {
  margin: 12px 0 10px;
  font-size: 1.08rem;
}

.once-chapter-card small {
  color: var(--once-muted);
  font-size: 0.9rem;
}

.once-doc-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 760px);
  gap: clamp(36px, 7vw, 88px);
  align-items: start;
  padding-block: 52px 100px;
}

.once-doc-toc {
  position: sticky;
  top: 94px;
  max-height: calc(100vh - 120px);
  overflow: auto;
  padding-right: 12px;
}

.once-doc-toc strong {
  display: block;
  margin-bottom: 12px;
}

.once-doc-toc a {
  display: block;
  padding: 8px 10px;
  color: var(--once-muted);
  border-left: 2px solid transparent;
  text-decoration: none;
  font-size: 0.88rem;
}

.once-doc-toc a[aria-current="page"] {
  color: var(--once-forest-dark);
  border-left-color: var(--once-forest);
  font-weight: 700;
}

.once-document h1 {
  font-size: clamp(2.25rem, 5vw, 3.8rem);
}

.once-document .once-lead {
  margin: 20px 0 38px;
  color: var(--once-muted);
  font-size: 1.15rem;
}

.once-document h2 {
  margin: 54px 0 16px;
  color: var(--once-forest-dark);
  font-size: 1.55rem;
  scroll-margin-top: 100px;
}

.once-document h3 {
  margin: 30px 0 10px;
  color: var(--once-forest-dark);
}

.once-document p,
.once-document li {
  color: #40524c;
}

.once-document ol,
.once-document ul {
  padding-left: 1.35rem;
}

.once-document li + li {
  margin-top: 10px;
}

.once-document code {
  padding: 0.1em 0.3em;
  border-radius: 4px;
  background: var(--once-lavender);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
}

.once-document figure {
  margin: 42px auto;
  text-align: center;
}

.once-document figure img {
  width: min(100%, 330px);
  max-height: 680px;
  margin-inline: auto;
  object-fit: contain;
  border: 1px solid var(--once-line);
  border-radius: 24px;
}

.once-callout {
  margin: 32px 0;
  padding: 20px;
  border: 1px solid var(--once-line);
  background: var(--once-white);
}

.once-callout strong {
  color: var(--once-forest-dark);
}

.once-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 70px;
  padding-top: 26px;
  border-top: 1px solid var(--once-line);
}

.once-prev-next a {
  padding: 18px;
  border: 1px solid var(--once-line);
  background: var(--once-white);
  text-decoration: none;
}

.once-prev-next a:last-child {
  text-align: right;
}

.once-faq {
  margin-top: 32px;
}

.once-faq details {
  border-top: 1px solid var(--once-line);
  padding: 20px 0;
}

.once-faq summary {
  cursor: pointer;
  color: var(--once-forest-dark);
  font-weight: 720;
}

.once-email {
  overflow-wrap: anywhere;
}

@media (max-width: 860px) {
  .once-header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 13px;
  }

  .once-nav {
    justify-content: flex-start;
  }

  .once-hero,
  .once-section {
    grid-template-columns: 1fr;
  }

  .once-hero {
    min-height: 0;
  }

  .once-section-reverse .once-section-copy {
    order: 0;
  }

  .once-phone-stage {
    min-height: 480px;
  }

  .once-steps,
  .once-manual-grid {
    grid-template-columns: 1fr 1fr;
  }

  .once-screen-grid {
    grid-template-columns: 1fr;
  }

  .once-doc-layout {
    grid-template-columns: 1fr;
  }

  .once-doc-toc {
    position: static;
    max-height: none;
    padding: 16px;
    border: 1px solid var(--once-line);
    background: var(--once-white);
  }
}

@media (max-width: 560px) {
  .once-shell {
    width: min(100% - 28px, 1160px);
  }

  .once-header {
    position: static;
  }

  .once-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px 10px;
  }

  .once-nav a {
    overflow-wrap: anywhere;
  }

  .once-hero h1 {
    font-size: 2.65rem;
  }

  .once-phone-stage {
    min-height: 0;
  }

  .once-phone-stage::before {
    inset: 5% 0;
  }

  .once-phone-stage img,
  .once-screen-figure img,
  .once-gallery-figure img,
  .once-document figure img {
    width: min(100%, 290px);
  }

  .once-steps,
  .once-manual-grid,
  .once-prev-next {
    grid-template-columns: 1fr;
  }

  .once-step {
    min-height: 0;
  }

  .once-prev-next a:last-child {
    text-align: left;
  }

  .once-footer-inner {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}