:root {
  color-scheme: light;
  --ink: #202723;
  --paper: #f7f6f0;
  --line: #d9dcd1;
  --muted: #515b52;
  --pine: #263630;
  --pine-deep: #1c2924;
  --mint: #d6f7a5;
  --mint-dark: #3c633f;
  --field: #ebeee3;
  --gutter: clamp(18px, 5vw, 72px);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
svg { display: block; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
h1, h2, h3, p, figure { margin: 0; }
a { color: inherit; }
button, input { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid #ca743f; outline-offset: 4px; }
.skip { position: fixed; z-index: 5; top: 10px; left: 12px; transform: translateY(-180%); padding: 12px; background: white; }
.skip:focus { transform: translateY(0); }
.wrap { width: min(100% - var(--gutter) * 2, 1200px); margin-inline: auto; }
section[id] { scroll-margin-top: 16px; }

.mast { background: var(--paper); }
.mast-inner { min-height: 75px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lockup { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex: none; }
.natch-logo { width: clamp(84px, 22vw + 16px, 120px); height: auto; aspect-ratio: 2.3; object-fit: cover; }
.lockup-cross { color: #697168; font-size: 17px; font-weight: 400; }
.transa-logo { width: clamp(80px, 9vw, 112px); height: auto; }
.mast nav { display: flex; gap: clamp(18px, 3.2vw, 44px); align-items: center; }
.mast nav a, .pitch-link { color: #374139; text-decoration: none; font-size: 13px; font-weight: 700; }
.mast nav a:hover, .pitch-link:hover { text-decoration: underline; text-underline-offset: .25em; }
.pitch-link { display: inline-flex; align-items: center; gap: 9px; min-height: 44px; white-space: nowrap; }
.pitch-link svg, .button svg { width: 18px; height: 18px; }

.hero { position: relative; isolation: isolate; overflow: hidden; color: #fff; background: #36433c; }
.hero-image { position: absolute; width: 100%; height: 100%; inset: 0; object-fit: cover; object-position: 56% 52%; z-index: -2; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, #14211edb, #15211dc2 29%, #18241f32 68%, #18241f16), linear-gradient(0deg, #19252078, transparent 38%); }
.hero-inner { min-height: clamp(520px, 44vw, 650px); display: flex; align-items: center; justify-content: space-between; padding-block: 64px; position: relative; }
.hero-content { max-width: 660px; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: 11px; line-height: 1.4; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow > span { color: var(--mint-dark); font-variant-numeric: tabular-nums; }
.hero-tag { color: #eff5ea; }
.hero-tag span, .status-dot { width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: var(--mint); }
.hero h1 { margin-top: 22px; margin-left: -.06em; font-size: clamp(80px, 9.2vw, 144px); line-height: .84; letter-spacing: -.08em; font-weight: 800; }
.hero h1 span { color: var(--mint); }
.hero-content > p:not(.eyebrow) { margin-top: 26px; max-width: 390px; font-size: clamp(17px, 1.55vw, 21px); line-height: 1.48; color: #f1f5ec; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 52px; border-radius: 4px; padding: 0 17px; text-decoration: none; font-weight: 800; font-size: 14px; transition: background-color .2s; }
.hero .button { margin-top: 27px; }
.button-mint { background: var(--mint); color: #1d2a21; }
.button-mint:hover { background: #ecffd1; }
.hero-stamp { position: absolute; right: 0; bottom: 31px; display: flex; align-items: center; gap: 9px; padding: 10px 12px; border: 1px solid #ffffff70; border-radius: 4px; background: #172520a6; font-size: 9px; letter-spacing: .17em; line-height: 1.45; font-weight: 700; }
.hero-stamp svg { width: 30px; height: 30px; color: var(--mint); }

.benefits { border-bottom: 1px solid var(--line); background: #f1f2e9; }
.benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.benefit { display: flex; gap: 14px; align-items: center; min-height: 107px; }
.benefit + .benefit { padding-left: clamp(15px, 3.8vw, 56px); border-left: 1px solid var(--line); }
.benefit > svg { width: 29px; height: 29px; color: var(--mint-dark); flex: none; }
.benefit strong, .benefit span { display: block; }
.benefit strong { font-size: 15px; }
.benefit span { margin-top: 4px; font-size: 13px; line-height: 1.45; color: var(--muted); }

.section { padding-block: clamp(59px, 7vw, 104px); }
.section-head { margin-bottom: 30px; }
.section-head h2, .pilot h2 { margin-top: 12px; font-size: clamp(36px, 5vw, 71px); line-height: .98; letter-spacing: -.065em; text-wrap: balance; }
.section-head > p:last-child { margin-top: 13px; color: var(--muted); font-size: 16px; line-height: 1.55; }
.ritual-grid { display: grid; grid-template-columns: minmax(225px, 1fr) minmax(0, 1.7fr); gap: 18px; }
.step-buttons { display: grid; gap: 7px; }
.step { min-height: 61px; display: grid; grid-template-columns: 26px 1fr 18px; gap: 12px; align-items: center; text-align: left; padding: 0 16px; background: transparent; border: 1px solid var(--line); border-radius: 5px; color: var(--ink); }
.step span { color: var(--mint-dark); font-size: 11px; letter-spacing: .08em; font-weight: 800; }
.step svg { width: 18px; height: 18px; }
.step:hover { border-color: #8da189; }
.step[aria-pressed="true"] { background: var(--pine); color: white; border-color: var(--pine); }
.step[aria-pressed="true"] span, .step[aria-pressed="true"] svg { color: var(--mint); }
.step-panel { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: clamp(16px, 3vw, 43px); padding: clamp(20px, 3vw, 39px); border-radius: 5px; background: #e8eee0; }
.step-visual { display: grid; place-items: center; width: clamp(65px, 9vw, 110px); aspect-ratio: 1; border: 1px solid #b8c8ac; border-radius: 50%; color: #38533f; }
.step-visual svg { width: 60%; height: 60%; stroke-width: 1.8; }
.step-kicker { color: var(--mint-dark); font-size: 10px; }
.step-panel h3 { margin-block: 6px 8px; font-size: clamp(23px, 2.55vw, 38px); line-height: 1; letter-spacing: -.05em; }
.step-panel p:last-child { max-width: 365px; color: #414d42; font-size: 15px; line-height: 1.5; }

.planner-section { background: var(--field); border-block: 1px solid var(--line); }
.planner { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.planner-controls, .planner-results { border-radius: 6px; padding: clamp(17px, 3.25vw, 44px); }
.planner-controls { border: 1px solid #d7dece; background: #fafaf5; }
.planner-controls label { font-size: clamp(17px, 2.3vw, 24px); font-weight: 800; letter-spacing: -.035em; }
.presets { display: flex; flex-wrap: wrap; gap: 7px; margin: 17px 0 24px; }
.presets button { min-height: 44px; border: 1px solid #cbd4c3; border-radius: 4px; background: transparent; color: var(--ink); padding: 8px 12px; font-size: 13px; font-weight: 750; }
.presets button:hover { border-color: #778d72; }
.presets button[aria-pressed="true"] { color: #203a24; border-color: #8ab26b; background: #e4f3ce; }
.range-label, .range-limits { display: flex; justify-content: space-between; align-items: center; }
.range-label { font-size: 13px; font-weight: 750; }
#duration { color: #324e32; }
.range-limits { margin-top: -2px; color: var(--muted); font-size: 11px; }
#days { --range-position: 7.7%; appearance: none; width: 100%; margin: 0; height: 44px; display: block; cursor: pointer; background: transparent; }
#days::-webkit-slider-runnable-track { height: 6px; border-radius: 6px; background: linear-gradient(to right, #669153 var(--range-position), #dbe2d3 var(--range-position)); }
#days::-moz-range-track { height: 6px; border-radius: 6px; background: linear-gradient(to right, #669153 var(--range-position), #dbe2d3 var(--range-position)); }
#days::-webkit-slider-thumb { appearance: none; height: 21px; width: 21px; margin-top: -7.5px; border-radius: 50%; border: 2px solid #fafaf5; background: #38633a; box-shadow: 0 0 0 1px #38633a; }
#days::-moz-range-thumb { height: 17px; width: 17px; border-radius: 50%; border: 2px solid #fafaf5; background: #38633a; box-shadow: 0 0 0 1px #38633a; }
.planner-tip { display: flex; align-items: flex-start; gap: 9px; margin-top: 22px; font-size: 13px; line-height: 1.45; color: var(--muted); }
.planner-tip svg { width: 19px; height: 19px; flex: none; color: var(--mint-dark); }
.planner-results { display: flex; flex-direction: column; justify-content: center; background: var(--pine); color: #fbfff6; }
.results-kicker { display: flex; align-items: center; gap: 9px; color: #edf4e7; font-size: 11px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.metrics { display: grid; grid-template-columns: .85fr 1.15fr; gap: 14px; margin-top: 17px; }
.metrics > div + div { border-left: 1px solid #ffffff35; padding-left: clamp(10px, 2.1vw, 23px); }
.metrics strong { display: block; color: var(--mint); font-size: clamp(39px, 5.1vw, 69px); line-height: 1.05; letter-spacing: -.075em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.metrics strong small { font-size: .5em; letter-spacing: -.035em; }
.metrics > div > span { display: block; margin-top: 5px; color: #e0eadc; font-size: 12px; line-height: 1.35; }
.tab-display { display: grid; grid-template-columns: repeat(14, 12px); gap: 5px; min-height: 29px; align-content: start; margin-top: 22px; }
.tab-display i { width: 12px; height: 12px; display: inline-block; border: 1px solid #d2e6ad; border-radius: 50%; background: #c5da9f; box-shadow: inset 0 -2px #819c65; }
.calculation { color: #e0eadc; font-size: 13px; line-height: 1.35; margin-top: 7px; }
.method { margin-top: 13px; color: #374539; font-size: 13px; }
.method summary { width: fit-content; cursor: pointer; padding: 8px 0; font-weight: 750; }
.method p { margin: 5px 0 8px; max-width: 73ch; line-height: 1.6; }
.sources a { font-weight: 750; text-underline-offset: 3px; }
.sources a:hover { color: var(--mint-dark); }

.table-frame { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 15px; line-height: 1.45; }
th, td { padding: 15px clamp(11px, 2.15vw, 26px); text-align: left; vertical-align: top; overflow-wrap: break-word; }
thead { background: var(--pine); color: #fff; }
thead th:first-child { width: 21%; }
thead th:nth-child(2) { color: var(--mint); }
tbody th { background: #f0f1e9; }
tbody td { background: #fcfcf8; }
tbody td:nth-child(2) { background: #eff3e8; }
tbody tr + tr > * { border-top: 1px solid var(--line); }
.table-note { margin-top: 14px; max-width: 85ch; color: var(--muted); line-height: 1.55; font-size: 13px; }
.sources { display: flex; flex-wrap: wrap; gap: 10px 21px; margin-top: 10px; font-size: 13px; }

.pilot-section { padding-bottom: clamp(50px, 6vw, 84px); background: var(--pine-deep); color: #f8f8ed; }
.pilot { min-height: 420px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); align-items: center; gap: clamp(20px, 5vw, 76px); padding-block: clamp(50px, 6vw, 84px) clamp(24px, 4vw, 40px); }
.pilot .eyebrow span { color: var(--mint); }
.pilot h2 { font-size: clamp(37px, 4.65vw, 65px); }
.pilot-copy > p:not(.eyebrow) { margin-top: 19px; max-width: 56ch; color: #e1eadf; font-size: 16px; line-height: 1.6; }
.pilot-copy .pilot-strip { color: var(--mint); font-size: 13px; font-weight: 750; }
.pilot-strip span { padding-inline: 4px; }
.pack-shot { overflow: hidden; border-radius: 6px; background: #fff; }
.pack-shot img { width: 100%; height: auto; }
.shelf { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .88fr); align-items: center; gap: clamp(20px, 5vw, 70px); margin-bottom: 20px; padding: clamp(18px, 4vw, 52px); border-radius: 6px; background: var(--paper); color: var(--ink); }
.shelf .eyebrow { color: var(--mint-dark); }
.shelf h3 { margin-block: 10px 14px; max-width: 16ch; font-size: clamp(30px, 4vw, 54px); line-height: 1.02; letter-spacing: -.055em; }
.shelf-copy > p:not(.eyebrow) { max-width: 49ch; color: var(--muted); font-size: 16px; line-height: 1.55; }
.shelf-options { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.shelf-options button { min-height: 44px; padding-inline: 12px; border: 1px solid #b9c4b4; border-radius: 4px; background: transparent; color: var(--ink); font-size: 13px; font-weight: 750; }
.shelf-options button:hover { border-color: var(--mint-dark); }
.shelf-options button[aria-pressed="true"] { border-color: var(--pine); background: var(--pine); color: var(--mint); }
.shelf-gallery { width: 100%; max-width: 460px; justify-self: center; }
.shelf-gallery figure { padding: 12px; border: 1px solid var(--line); border-radius: 5px; background: #fff; }
.shelf-image { aspect-ratio: 1; }
.shelf-image img { width: 100%; height: 100%; object-fit: contain; }
.shelf-gallery figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; margin-top: 7px; padding: 9px 2px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.4; }
.shelf-gallery figcaption a { color: var(--mint-dark); font-weight: 750; text-underline-offset: 3px; }
.mouthwash { display: grid; grid-template-columns: clamp(110px, 15vw, 152px) minmax(0, 1fr); align-items: center; gap: clamp(16px, 3vw, 36px); padding: clamp(16px, 2.5vw, 28px); border: 1px solid #fbfff63b; border-radius: 6px; background: var(--pine); }
.mouthwash img { width: 100%; height: auto; border-radius: 4px; }
.mouthwash .eyebrow { color: var(--mint); }
.mouthwash h3 { margin-block: 7px 9px; font-size: clamp(25px, 3vw, 36px); line-height: 1.1; letter-spacing: -.045em; }
.mouthwash p:last-child { max-width: 61ch; color: #e1eadf; font-size: 15px; line-height: 1.55; }

.footer { display: flex; min-height: 83px; align-items: center; justify-content: space-between; gap: 15px; color: var(--muted); font-size: 12px; }
.footer .natch-logo { width: clamp(82px, 24vw, 94px); flex: none; }
.footer > a { flex: none; width: 44px; height: 44px; border: 1px solid var(--line); display: grid; place-items: center; border-radius: 4px; }
.footer > a:hover { background: var(--field); }
.footer svg { width: 17px; height: 17px; }

@media (max-width: 740px) {
  .mast-inner { min-height: 63px; gap: 8px; }
  .lockup { gap: 7px; }
  .pitch-link { gap: 5px; }
  .mast nav { display: none; }
  .hero-inner { min-height: 524px; padding-block: 55px 84px; }
  .hero-image { object-position: 66% 55%; }
  .hero::after { background: linear-gradient(90deg, #192520d6, #1925209c 57%, #19252027), linear-gradient(0deg, #1925209e, transparent 58%); }
  .hero h1 { font-size: clamp(69px, 14vw, 103px); }
  .hero-stamp { bottom: 16px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit { min-height: 68px; gap: 13px; }
  .benefit + .benefit { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .benefit > svg { width: 25px; height: 25px; }
  .section-head { margin-bottom: 24px; }
  .ritual-grid, .planner, .pilot, .shelf { grid-template-columns: 1fr; }
  .ritual-grid { gap: 12px; }
  .step { min-height: 49px; }
  .step-panel { min-height: 165px; }
  .pilot { gap: 24px; }
  .pack-shot { width: min(100%, 420px); }
  .shelf-image { aspect-ratio: 4 / 5; }
}
@media (max-width: 490px) {
  .hero-content > p:not(.eyebrow) { max-width: 290px; }
  .hero-stamp { padding: 6px 8px; font-size: 8px; }
  .hero-stamp svg { width: 24px; height: 24px; }
  .table-frame th, .table-frame td { padding: 11px 8px; font-size: 12px; }
  thead th:first-child { width: 25%; }
  .section-head h2, .pilot h2 { text-wrap: wrap; }
  .mouthwash { grid-template-columns: 1fr; }
  .mouthwash img { width: 112px; }
}
@media (max-width: 350px) {
  .mast-inner { gap: 6px; }
  .lockup { gap: 5px; }
  .pitch-link svg { width: 16px; height: 16px; }
  .presets button { padding-inline: 9px; }
  .tab-display { grid-template-columns: repeat(14, 10px); }
  .tab-display i { width: 10px; height: 10px; }
  .metrics strong { font-size: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}