/* RatioCast — site styles. Tokens from design.md §3–§5; one source of truth for colour, type and space. */

@font-face {
  font-family: "Inter";
  src: url("/fonts/inter-latin-wght.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;

  /* brand (design.md §3) */
  --color-brand-midnight: #101D2C;
  --color-brand-teal: #087F8C;
  --color-brand-lime: #B9F36B;
  --color-background: #F4F7FA;
  --color-surface: #FFFFFF;
  --color-text-primary: #101D2C;
  --color-text-secondary: #526174;
  --color-border: #DCE3EA;
  --color-surface-teal-subtle: #E6F4F4;
  --color-surface-lime-subtle: #F2FBDD;
  --color-surface-slate-subtle: #EEF2F6;
  --color-success: #18794E;
  --color-warning: #9A5B00;
  --color-info: #2457A7;

  /* component tokens */
  --teal-strong: #066A75;
  --on-dark: #F4F7FA;
  --on-dark-soft: #B4C1D0;
  --chart-grid: #E3E9EF;
  --chart-holdout: #6B7A8D;

  --font-sans: Inter, Heebo, Assistant, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* five type steps (design.md §4, fluid) */
  --step-small: 0.875rem;                                     /* 14 */
  --step-body: clamp(1rem, 0.96rem + 0.15vw, 1.0625rem);      /* 16–17 */
  --step-lead: clamp(1.1875rem, 1.05rem + 0.45vw, 1.375rem);  /* 19–22 */
  --step-h2: clamp(1.875rem, 1.3rem + 1.8vw, 2.75rem);        /* 30–44 */
  --step-display: clamp(2.25rem, 1.2rem + 3.1vw, 3.5rem);     /* 36–56 */

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --margin: clamp(1rem, 2.4vw, 2rem);
  --gutter: clamp(1rem, 2vw, 1.5rem);
  --section: clamp(6rem, 11vw, 10rem);
  --max: 80rem;
  --pad: max(var(--margin), calc((100vw - var(--max)) / 2));

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
  --t-press: 140ms;
  --t-hover: 180ms;
  --t-ui: 240ms;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; background: var(--color-background); color: var(--color-text-primary); font-family: var(--font-sans); font-size: var(--step-body); line-height: 1.55; font-feature-settings: "cv11", "ss01"; -webkit-font-smoothing: antialiased; overflow-x: clip; }
h1, h2, h3, p, figure, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; text-wrap: balance; }
p { text-wrap: pretty; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 3px solid var(--color-brand-teal); outline-offset: 3px; }
::selection { background: var(--color-brand-lime); color: var(--color-brand-midnight); }
:target { scroll-margin-top: 2rem; }
.nums { font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; inset-inline-start: var(--margin); inset-block-start: -4rem; z-index: 20; background: var(--color-brand-midnight); color: #fff; padding: 0.75rem 1rem; border-radius: var(--radius-md); text-decoration: none; }
.skip:focus { inset-block-start: 1rem; }
.h2 { font-size: var(--step-h2); letter-spacing: -0.025em; line-height: 1.08; }

/* ---------- controls ---------- */
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; padding: 0 1.4rem; border-radius: var(--radius-md); background: var(--color-brand-teal); color: #fff; font-weight: 600; text-decoration: none; white-space: nowrap; transition: background-color var(--t-hover) ease, transform var(--t-press) var(--ease-out); }
.button:active { transform: scale(0.97); }
.button--small { min-height: 2.5rem; padding: 0 1rem; font-size: var(--step-small); }
.button--dark { background: var(--color-brand-midnight); }
.link { text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 0.22em; text-decoration-thickness: 0.07em; transition: text-decoration-color var(--t-hover) ease, color var(--t-hover) ease; }
.src--dark { color: var(--color-brand-lime) !important; }
.src { color: var(--teal-strong); font-weight: 600; text-decoration: underline; text-decoration-thickness: 0.07em; text-underline-offset: 0.2em; }
@media (hover: hover) and (pointer: fine) {
  .button:hover { background: var(--teal-strong); }
  .button--dark:hover { background: #22344A; }
  .link:hover { text-decoration-color: currentColor; }
  .src:hover { color: var(--color-brand-midnight); }
}

/* ---------- header bar ---------- */
.bar { display: flex; align-items: center; gap: 2rem; padding: 1.25rem var(--margin); }
.bar__mark { display: block; margin-inline-end: auto; }
.bar__mark img { height: 2.25rem; width: auto; background: none; }
.bar__nav { display: flex; gap: 1.75rem; font-size: var(--step-small); }
@media (max-width: 47.99em) {
  .bar { gap: 1rem; }
  .bar__nav { display: none; }
}

/* ---------- product fragments (data-ui): the product's own conventions ---------- */
[data-ui] { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text-primary); font-size: 0.875rem; line-height: 1.45; }
.ui-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.ui-title { font-size: 0.875rem; font-weight: 600; }
.ui-sub { font-size: 0.8125rem; color: var(--color-text-secondary); }
.ui-cap { font-size: 0.8125rem; color: var(--color-text-secondary); margin-top: 0.9rem; }
.ui-note { margin-top: 1rem; padding: 0.6rem 0.75rem; border-radius: var(--radius-sm); background: var(--color-surface-lime-subtle); font-size: 0.8125rem; }
.ui-row { display: flex; align-items: center; gap: 0.6rem; font-size: 0.875rem; }
.pill { flex: 0 0 auto; display: inline-flex; align-items: center; min-height: 1.375rem; padding: 0 0.55rem; border-radius: var(--radius-pill); background: var(--color-surface-slate-subtle); color: var(--color-text-secondary); font-size: 0.75rem; font-weight: 600; }
.pill--teal { background: var(--color-surface-teal-subtle); color: var(--teal-strong); }
.pill--done { background: #E3F2EA; color: var(--color-success); }
.pill--wait { background: #FBF0DC; color: var(--color-warning); }
.dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; flex: 0 0 auto; }
.dot--ok { background: var(--color-success); }
.ui-table { width: 100%; border-collapse: collapse; margin-top: 0.75rem; font-size: 0.8125rem; }
.ui-table th { text-align: start; font-weight: 500; color: var(--color-text-secondary); padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--color-border); }
.ui-table td { padding: 0.5rem; border-bottom: 1px solid #EDF1F5; }
.ui-table tr:last-child td { border-bottom: 0; }
.ui-table th:not(:first-child), .ui-table td:not(:first-child) { text-align: end; }
.ui-table tr.is-hover td { background: var(--color-surface-slate-subtle); }
.ui-facts { display: grid; gap: 0.6rem; margin-top: 0.9rem; }
.ui-facts div { display: grid; grid-template-columns: 5.5rem 1fr; gap: 0.75rem; }
.ui-facts dt { color: var(--color-text-secondary); }
.ui-actions { display: flex; gap: 0.5rem; margin-top: 1rem; }
.ui-btn { display: inline-flex; align-items: center; min-height: 2rem; padding: 0 0.75rem; border: 1px solid #C9D3DD; border-radius: var(--radius-sm); font-size: 0.8125rem; font-weight: 500; }
.ui-btn--hover { background: var(--color-surface-slate-subtle); border-color: #AEBBC8; }
.ui-legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; font-size: 0.75rem; color: var(--color-text-secondary); }
.lg { display: inline-block; width: 1.1rem; height: 0; margin-inline-end: 0.35rem; vertical-align: middle; border-top: 2px solid var(--color-brand-midnight); }
.lg--fc { border-top: 2px dashed var(--color-brand-teal); }
.lg--band { height: 0.6rem; border: 0; background: rgba(8, 127, 140, 0.16); }
.lg--act { width: 0.7rem; height: 0.7rem; border: 2px solid var(--color-brand-midnight); border-radius: 50%; background: var(--color-brand-lime); }
.lg--hold { border-top: 2px dotted var(--chart-holdout); }
.ui-bars { display: grid; gap: 0.7rem; margin-top: 1rem; }
.ui-bars li { display: grid; grid-template-columns: 7rem 1fr; align-items: center; gap: 0.75rem; }
.ui-bars b { display: block; width: calc(var(--v) / 2 * 100%); padding: 0.3rem 0.5rem; border-radius: var(--radius-sm); background: var(--color-surface-slate-subtle); font-weight: 600; font-size: 0.8125rem; text-align: end; }
.ui-bars .is-top b { background: var(--color-brand-teal); color: #fff; }

/* charts (design.md §9): observed solid, forecast dashed, range as a band, action as a lime point */
.chart { width: 100%; height: auto; margin-top: 0.5rem; overflow: visible; }
.chart .g { stroke: var(--chart-grid); stroke-width: 1; }
.chart .ax { font: 500 12px var(--font-sans); fill: var(--color-text-secondary); }
.chart .obs { fill: none; stroke: var(--color-brand-midnight); stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: round; }
.chart .fc { fill: none; stroke: var(--color-brand-teal); stroke-width: 2.25; stroke-dasharray: 7 5; stroke-linecap: round; }
.chart .hold { fill: none; stroke: var(--chart-holdout); stroke-width: 2.25; stroke-dasharray: 1 5; stroke-linecap: round; }
.chart .band { fill: var(--color-brand-teal); fill-opacity: 0.14; stroke: none; }
.chart .now { stroke: var(--color-text-secondary); stroke-width: 1; stroke-dasharray: 2 3; }
.chart .act-line { stroke: var(--color-brand-midnight); stroke-width: 1; stroke-dasharray: 4 3; }
.chart .act { fill: var(--color-brand-lime); stroke: var(--color-brand-midnight); stroke-width: 2; }

/* ---------- hero: the sentence split by a frame ---------- */
.hero { position: relative; height: calc(min(calc(100svh - 5rem), 60rem) * 2); }
.hero__stage { position: sticky; top: 0; height: calc(100svh - 5rem); min-height: 36rem; max-height: 60rem; overflow: clip; display: grid; grid-template-columns: 1fr minmax(20rem, min(41vw, 37rem)) 1fr; grid-template-rows: 1fr auto; column-gap: clamp(1rem, 2.5vw, 2.5rem); padding: 0 var(--margin) clamp(1.5rem, 4vh, 2.5rem); }
.hero__title { grid-column: 1 / -1; grid-row: 1; align-self: center; position: relative; z-index: 3; display: grid; grid-template-columns: subgrid; font-size: var(--step-display); line-height: 1.04; letter-spacing: -0.035em; }
.hero__half { grid-row: 1; align-self: center; position: relative; z-index: 1; font-size: var(--step-display); line-height: 1.04; letter-spacing: -0.035em; font-weight: 600; max-width: 100%; }
.hero__half--a { grid-column: 1; justify-self: start; }
.hero__half--b { grid-column: 3; justify-self: end; text-align: end; }
.reel { grid-column: 2; grid-row: 1 / -1; position: relative; z-index: 2; }
.reel__track { position: absolute; inset-inline: 0; top: 0; display: grid; gap: 1.5rem; will-change: transform; }
.frame { aspect-ratio: 16 / 11; overflow: hidden; padding: 1.1rem 1.2rem 1rem; display: flex; flex-direction: column; gap: 0.25rem; }
.frame .chart { flex: 1 1 auto; min-height: 0; }
.frame .ui-legend { margin-top: auto; padding-top: 0.5rem; }
.hero__foot { grid-column: 1; grid-row: 2; align-self: end; max-width: 28rem; display: grid; gap: 1.1rem; position: relative; z-index: 3; }
.hero__lede { font-size: var(--step-body); color: var(--color-text-primary); }
.hero__actions { display: flex; align-items: center; gap: 1.5rem; }
@media (max-width: 63.99em) {
  .hero { height: auto; }
  .hero__stage { position: static; height: auto; min-height: 0; grid-template-columns: 1fr; grid-template-rows: none; row-gap: 1.75rem; padding-top: 2rem; padding-bottom: var(--section); }
  .hero__title { grid-column: 1; grid-row: auto; display: grid; grid-template-columns: 1fr; row-gap: 1.75rem; }
  .hero__half, .hero__half--a, .hero__half--b { grid-column: 1; grid-row: auto; max-width: none; }
  .hero__half--a { justify-self: start; }
  .hero__half--b { justify-self: end; }
  .hero__half--b br { display: none; }
  .reel { grid-column: 1; grid-row: auto; }
  .reel__track { position: static; transform: none !important; }
  .reel .frame:not(:first-child) { display: none; }
  .frame { aspect-ratio: auto; }
  .hero__foot { grid-column: 1; grid-row: auto; max-width: 36rem; }
}

/* ---------- why now: narrow column beside the time scale ---------- */
.gap { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); padding: var(--section) var(--margin); align-items: start; }
.gap > .h2 { grid-column: 1 / -1; max-width: 24ch; margin-bottom: 3.5rem; }
.gap__text { grid-column: 1 / span 5; max-width: 34rem; display: grid; gap: 1.1rem; color: var(--color-text-secondary); }
.gap__first { color: var(--color-text-primary); font-weight: 500; }
.scale { grid-column: 7 / span 6; grid-row: 2; padding: 1.5rem 1.5rem 2rem; position: sticky; top: 2rem; }
.scale__axis { display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 1.5rem; font-size: 0.75rem; color: var(--color-text-secondary); text-align: center; }
.lane { margin-top: 1rem; padding: 0.75rem 0.75rem 0.5rem; border-radius: var(--radius-sm); }
.lane--slow { background: var(--color-surface-slate-subtle); }
.lane__name { font-size: 0.75rem; font-weight: 600; color: var(--color-text-secondary); }
.lane__track { position: relative; height: 7rem; margin-inline: -0.75rem; }
.lane__track::before { content: ""; position: absolute; inset-inline: 0; top: 50%; border-top: 2px solid var(--color-border); /* taste-skill-ignore: axis inside a data-ui fragment */ }
.lane--slow .lane__track::before { border-top-color: #C9D3DD; }
.tick { position: absolute; left: var(--at); top: 50%; text-decoration: none; }
.tick::before { content: ""; position: absolute; left: 0; top: 0; width: 0.75rem; height: 0.75rem; border-radius: 50%; transform: translate(-50%, -50%); background: var(--color-brand-midnight); border: 2px solid var(--color-surface); }
.lane--slow .tick::before { background: var(--color-text-secondary); border-color: var(--color-surface-slate-subtle); }
.tick b, .tick span { position: absolute; left: 0; transform: translateX(-50%); white-space: nowrap; text-align: center; }
.tick b { top: 0.6rem; font-size: 1.0625rem; font-weight: 650; letter-spacing: -0.01em; text-decoration: underline; text-decoration-color: rgba(8, 127, 140, 0.45); text-decoration-thickness: 0.07em; text-underline-offset: 0.2em; }
.tick span { top: 2.1rem; font-size: 0.75rem; color: var(--color-text-secondary); }
.tick--up b { top: auto; bottom: 2.1rem; }
.tick--up span { top: auto; bottom: 0.6rem; }
.tick--start b, .tick--start span { transform: translateX(-0.4rem); text-align: start; }
.tick--end b, .tick--end span { transform: translateX(calc(-100% + 0.4rem)); text-align: end; }
@media (hover: hover) and (pointer: fine) { .tick:hover b { color: var(--teal-strong); text-decoration-color: currentColor; } }
@media (max-width: 63.99em) {
  .gap > .h2 { grid-column: 1 / -1; }
  .gap__text { grid-column: 1 / -1; }
  .scale { grid-column: 1 / -1; grid-row: auto; position: static; margin-top: 3rem; }
}
@media (max-width: 47.99em) {
  .gap__text { grid-column: 1 / -1; }
  .scale { padding: 1.25rem 1rem; }
  .scale__axis { display: none; }
  .lane__track { height: auto; margin: 0.5rem 0 0; display: grid; gap: 0.75rem; }
  .lane__track::before, .tick::before { display: none; }
  .tick { position: static; display: grid; }
  .tick b, .tick span, .tick--up b, .tick--up span, .tick--start b, .tick--start span, .tick--end b, .tick--end span { position: static; transform: none; text-align: start; white-space: normal; }
}

/* ---------- ad auctions are markets ---------- */
.markets { padding: calc(var(--section) / 2) var(--margin) var(--section); display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); }
.markets__head { grid-column: 1 / span 4; display: grid; gap: 1rem; align-content: start; }
.markets__head p { color: var(--color-text-secondary); max-width: 44ch; }
.pairs { grid-column: 6 / span 7; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.25rem var(--gutter); padding-top: 0.5rem; }
.pairs dt { font-size: var(--step-small); color: var(--color-text-secondary); }
.pairs dd { font-size: var(--step-lead); font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; margin-top: 0.25rem; }
@media (max-width: 63.99em) {
  .markets__head, .pairs { grid-column: 1 / -1; }
  .pairs { margin-top: 3rem; }
  .pairs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 47.99em) { .pairs { grid-template-columns: 1fr; gap: 1.25rem; } }

/* ---------- the loop: a dark row of panels ---------- */
.loop { background: var(--color-brand-midnight); color: var(--on-dark); padding: clamp(5rem, 9vw, 7rem) 0; display: grid; align-content: center; gap: 3rem; }
.loop__head { padding-inline: var(--margin); display: grid; gap: 0.75rem; }
.loop__head p { max-width: 46ch; }
.loop__head p { color: var(--on-dark-soft); }
.loop__body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16rem, 24rem); gap: clamp(1.5rem, 3vw, 3rem); align-items: start; padding-inline-end: var(--margin); }
.carousel { display: flex; align-items: flex-start; gap: 1.5rem; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--margin); padding: 0.5rem var(--margin) 1.25rem; scrollbar-width: thin; scrollbar-color: #3A4B60 transparent; outline-offset: -3px; }
.slide { flex: 0 0 min(28rem, 82vw); scroll-snap-align: start; padding: 1.1rem 1.2rem 1.25rem; transform: scale(0.94); transform-origin: 50% 50%; transition: transform 400ms var(--ease-out), border-color var(--t-ui) ease; }
.slide.is-active { transform: none; border-color: var(--color-brand-lime); outline: 2px solid var(--color-brand-lime); outline-offset: 0; }
.loop__say { display: grid; gap: 0.75rem; padding-top: 0.5rem; }
.loop__name { font-size: var(--step-lead); font-weight: 600; letter-spacing: -0.01em; }
.loop__line { color: var(--on-dark); max-width: 34ch; min-height: var(--line-h, auto); }
.loop__tech { font-size: var(--step-small); color: var(--color-brand-lime); }
.loop__nav { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.loop__btn { width: 3rem; height: 3rem; border-radius: 50%; background: #1E2E42; color: var(--on-dark); font-size: 1.125rem; transition: background-color var(--t-hover) ease, transform var(--t-press) var(--ease-out); }
.loop__btn:active { transform: scale(0.94); }
.loop__btn:disabled { opacity: 0.35; cursor: default; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .loop__say.is-changing .loop__name, .loop__say.is-changing .loop__line, .loop__say.is-changing .loop__tech { animation: step-in 320ms var(--ease-out) both; }
  .loop__say.is-changing .loop__line { animation-delay: 40ms; }
  .loop__say.is-changing .loop__tech { animation-delay: 80ms; }
}
@keyframes step-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (hover: hover) and (pointer: fine) { .loop__btn:not(:disabled):hover { background: var(--color-brand-teal); } }
@media (max-width: 63.99em) {
  .loop__body { grid-template-columns: 1fr; padding-inline-end: 0; }
  .loop__say { padding-inline: var(--margin); }
}

/* ---------- your goal ---------- */
.goal { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); padding: var(--section) var(--margin) 0; align-items: start; }
.goal__head { grid-column: 1 / span 5; display: grid; gap: 1rem; }
.goal__head p { max-width: 40ch; }
.goal__hint { font-size: var(--step-small); color: var(--color-text-secondary); }
.goalbox { grid-column: 7 / span 6; padding: 1.25rem; }
.goalbox__tabs { display: flex; gap: 0.25rem; padding: 0.25rem; border-radius: var(--radius-md); background: var(--color-surface-slate-subtle); }
.goalbox__tabs button { flex: 1 1 0; min-height: 2.75rem; padding: 0 0.75rem; border-radius: var(--radius-sm); font-size: 0.9375rem; font-weight: 600; color: var(--color-text-secondary); transition: background-color var(--t-hover) ease, color var(--t-hover) ease; }
.goalbox__tabs button[aria-selected="true"] { background: var(--color-surface); color: var(--color-text-primary); outline: 1px solid var(--color-border); outline-offset: -1px; }
@media (hover: hover) and (pointer: fine) { .goalbox__tabs button[aria-selected="false"]:hover { color: var(--color-text-primary); } }
.goalbox__panels { display: grid; }
/* every panel shares one cell, so the card keeps the height of the tallest goal and never jumps */
.goalbox__panel { grid-area: 1 / 1; padding: 0.5rem 0.25rem 0; display: flex; flex-direction: column; }
.goalbox__panel[hidden] { display: flex; visibility: hidden; }
.goalbox__panel .goalbox__move { margin-top: auto; }
.goalbox__panel .ui-facts { margin-bottom: 1.1rem; }
@media (prefers-reduced-motion: no-preference) {
  .goalbox__panel:not([hidden]) { animation: step-in 280ms var(--ease-out) both; }
}
.goalbox__panel .ui-facts { font-size: 0.9375rem; }
.goalbox__move { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; margin-top: 1.1rem; padding: 0.75rem 0.85rem; border-radius: var(--radius-sm); background: var(--color-surface-lime-subtle); font-size: 0.9375rem; }
.goalbox__note { margin-top: 0.9rem; font-size: 0.8125rem; color: var(--color-text-secondary); }
@media (max-width: 63.99em) {
  .goal__head, .goalbox { grid-column: 1 / -1; }
  .goalbox { margin-top: 2.5rem; }
}
@media (max-width: 47.99em) {
  .goalbox__tabs { flex-direction: column; }
  .goalbox__panel .ui-facts div { grid-template-columns: 1fr; gap: 0.1rem; }
}

/* ---------- from the calendar to the forecast ---------- */
.compare { padding: var(--section) var(--margin); }
.compare .h2 { margin-bottom: 3rem; max-width: 18ch; }
.compare__grid { display: grid; }
.compare__row { display: grid; grid-template-columns: 4fr 4fr 4fr; align-items: stretch; }
.compare__row > span { padding: 1.1rem 1.25rem; }
.compare__row:nth-child(even) > span:not(:last-child) { background: var(--color-surface-slate-subtle); }
.compare__row > span:first-child { font-size: var(--step-lead); font-weight: 500; letter-spacing: -0.01em; }
.compare__row > span:nth-child(2) { color: var(--color-text-secondary); }
.compare__row > span:last-child { background: var(--color-brand-midnight); color: var(--on-dark); font-weight: 500; }
.compare__row:nth-child(even) > span:last-child { background: #172739; }
.compare__row--head > span { font-size: var(--step-small) !important; font-weight: 600 !important; color: var(--color-text-secondary); padding-block: 0.9rem; }
.compare__row--head > span:last-child { color: var(--color-brand-lime); padding-top: 2.1rem; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.compare__row:last-child > span:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.compare__row--head { align-items: end; }
@media (max-width: 47.99em) {
  .compare__row--head { display: none; }
  .compare__row { grid-template-columns: 1fr; margin-bottom: 1rem; border-radius: var(--radius-md); overflow: hidden; background: var(--color-surface-slate-subtle); }
  .compare__row > span { padding: 0.75rem 1rem; background: transparent !important; }
  .compare__row > span:nth-child(2)::before { content: "Today: "; font-weight: 600; }
  .compare__row > span:last-child { background: var(--color-brand-midnight) !important; border-radius: 0 !important; }
  .compare__row > span:last-child::before { content: "With RatioCast: "; color: var(--color-brand-lime); font-weight: 600; }
}

/* ---------- how we start: call and response ---------- */
.start { padding: calc(var(--section) / 2) var(--margin) var(--section); display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); }
.start__head { grid-column: 1 / span 5; position: sticky; top: 2rem; align-self: start; display: grid; gap: 1rem; }
.start__head p { color: var(--color-text-secondary); max-width: 34ch; }
.start__list { grid-column: 7 / span 6; display: grid; row-gap: 4.5rem; }
.exchange { display: grid; gap: 1rem; }
.exchange__say { font-size: var(--step-lead); font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; }
.call { background: var(--color-surface-slate-subtle); border-color: transparent; padding: 1.25rem; }
.response { margin-inline-start: 3.5rem; padding: 1rem 1.25rem; }
.exchange--wide .exchange__say { max-width: 40ch; }
.response--wide { margin-inline-start: 0; padding: 1.25rem; }
.sources { display: grid; gap: 0.6rem; }
.sources > div { display: grid; grid-template-columns: 8.5rem 1fr; align-items: center; gap: 1rem; }
.sources .chips { margin-top: 0; }
@media (max-width: 47.99em) { .sources { gap: 1rem; } .sources > div { grid-template-columns: 1fr; gap: 0.4rem; } }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.chips li { padding: 0.4rem 0.75rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-weight: 500; }
.fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.fields label { display: grid; gap: 0.35rem; font-size: 0.8125rem; color: var(--color-text-secondary); }
.field { display: flex; align-items: center; min-height: 2.5rem; padding: 0 0.75rem; background: var(--color-surface); border: 1px solid #C9D3DD; border-radius: var(--radius-sm); color: var(--color-text-primary); font-size: 0.9375rem; font-weight: 500; }
.stages { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.stage { display: grid; gap: 0.35rem; align-content: start; justify-items: start; padding: 1rem; border-radius: var(--radius-sm); background: var(--color-surface-slate-subtle); }
.stage.is-now { background: var(--color-surface-lime-subtle); outline: 2px solid var(--color-brand-lime); outline-offset: -2px; }
.stage__name { font-weight: 600; font-size: 1rem; }
.stage p:not(.stage__name) { color: var(--color-text-secondary); }
@media (max-width: 63.99em) {
  .start__head { grid-column: 1 / -1; position: static; margin-bottom: 3rem; }
  .start__list { grid-column: 1 / -1; }
}
@media (max-width: 47.99em) {
  .response { margin-inline-start: 0; }
  .fields, .stages { grid-template-columns: 1fr; }
}

/* ---------- easy to describe, hard to build ---------- */
.hard { background: var(--color-surface); padding: var(--section) var(--margin); display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); }
.hard__head { grid-column: 1 / span 5; display: grid; gap: 1rem; align-content: start; }
.hard__head p { color: var(--color-text-secondary); max-width: 36ch; }
.hard__list { grid-column: 7 / span 6; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3rem var(--gutter); }
.barrier h3 { font-size: var(--step-lead); letter-spacing: -0.015em; }
.barrier__line { margin-top: 0.35rem; font-weight: 500; color: var(--teal-strong); }
.barrier p:last-child { margin-top: 0.5rem; color: var(--color-text-secondary); }
@media (max-width: 63.99em) {
  .hard__head, .hard__list { grid-column: 1 / -1; }
  .hard__list { margin-top: 3rem; }
}
@media (max-width: 47.99em) { .hard__list { grid-template-columns: 1fr; gap: 2rem; } }

/* ---------- founder letter ---------- */
.letter { padding: var(--section) var(--margin); }
.letter__inner { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); align-items: start; }
.letter__aside { grid-column: 1 / span 4; position: sticky; top: 2rem; display: grid; justify-items: start; gap: 0.25rem; }
.letter__aside .letter__title { font-size: var(--step-h2); letter-spacing: -0.025em; line-height: 1.08; margin: 1rem 0 1.5rem; }
.letter__title { font-size: var(--step-lead); letter-spacing: -0.01em; margin-bottom: 0.25rem; }
.letter__col { grid-column: 6 / span 6; display: grid; gap: 1.1rem; font-size: var(--step-lead); line-height: 1.55; letter-spacing: -0.005em; }
.letter__mark { width: 3.5rem; height: 3.5rem; border-radius: 50%; background: none; }
.letter mark { background: var(--color-surface-lime-subtle); color: inherit; padding-inline: 0.12em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.letter__sign { font-size: var(--step-lead); font-weight: 600; letter-spacing: -0.01em; }
.letter__role { font-size: var(--step-small); color: var(--color-text-secondary); }
@media (max-width: 63.99em) {
  .letter__aside, .letter__col { grid-column: 1 / -1; position: static; }
  .letter__aside { margin-bottom: 2rem; }
  .letter__col { font-size: 1.0625rem; }
}

/* ---------- close: the action tile ---------- */
.close { padding-bottom: clamp(4rem, 10vw, 8rem); overflow-x: clip; }
.close__row { display: grid; grid-template-columns: minmax(1rem, 1fr) minmax(0, var(--max)) minmax(1rem, 1fr); gap: 0.75rem; min-height: 22.5rem; }
.close__side { border-radius: var(--radius-lg); }
.close__side--a { background: var(--color-surface-teal-subtle); margin-inline-start: calc(var(--radius-lg) * -1); }
.close__side--b { background: var(--color-brand-midnight); margin-inline-end: calc(var(--radius-lg) * -1); }
.close__tile { background: var(--color-brand-lime); color: var(--color-brand-midnight); border-radius: var(--radius-lg); padding: 2.5rem; display: grid; align-content: center; gap: 1rem; }
.close__title { font-size: var(--step-h2); letter-spacing: -0.025em; }
.close__tile p { font-size: var(--step-lead); line-height: 1.35; max-width: 34ch; }
.close__actions { display: flex; align-items: center; gap: 1.5rem; margin-top: 0.5rem; }
@media (max-width: 47.99em) {
  .close__row { grid-template-columns: 1fr 1fr; padding-inline: var(--margin); }
  .close__tile { grid-column: 1 / -1; grid-row: 1; padding: 1.75rem; min-height: 18rem; }
  .close__side { grid-row: 2; height: 7.5rem; margin: 0 !important; }
  .close__actions { flex-direction: column; align-items: stretch; text-align: center; }
}

/* ---------- footer: a single quiet line ---------- */
.foot { display: grid; grid-template-columns: 1fr auto 1fr; align-items: baseline; gap: 1rem; padding: 2rem var(--margin) 1.9rem; font-size: var(--step-small); color: var(--color-text-secondary); }
.foot__what { display: flex; align-items: center; gap: 0.6rem; }
.foot__mark { width: 1.25rem; height: 1.25rem; }
.foot__links { display: flex; gap: 1.5rem; color: var(--color-text-primary); }
.foot__legal { justify-self: end; }
@media (max-width: 47.99em) {
  .foot { grid-template-columns: 1fr; gap: 0.5rem; }
  .foot__links { flex-wrap: wrap; gap: 0.5rem 1.25rem; }
  .foot__legal { justify-self: start; }
}

/* ---------- contact page ---------- */
.contact { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); padding: clamp(4rem, 10vw, 9rem) var(--margin) var(--section); align-items: start; }
.contact__col { grid-column: 1 / span 6; }
.contact__title { font-size: var(--step-display); line-height: 1.04; letter-spacing: -0.035em; }
.contact__lede { margin-top: 1.25rem; font-size: var(--step-lead); line-height: 1.35; max-width: 32ch; }
.contact__demo { margin-top: 2.5rem; display: grid; justify-items: start; gap: 0.75rem; }
.contact__hint { font-size: var(--step-small); color: var(--color-text-secondary); }
.lead { margin-top: 2.5rem; display: grid; gap: 1.75rem; }
.lead__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem var(--gutter); }
.fieldset { display: grid; gap: 0.4rem; align-content: start; }
.fieldset label, .choices legend { font-size: var(--step-small); font-weight: 600; }
.optional { font-weight: 400; color: var(--color-text-secondary); margin-inline-start: 0.35rem; }
.lead input[type="text"], .lead input[type="email"], .lead select, .lead textarea { width: 100%; min-height: 3rem; padding: 0.7rem 0.9rem; border: 1px solid #C9D3DD; /* taste-skill-ignore: form field */ border-radius: var(--radius-sm); background: var(--color-surface); font-size: 1rem; line-height: 1.4; transition: border-color var(--t-hover) ease; }
.lead select { appearance: none; -webkit-appearance: none; padding-inline-end: 2.5rem; background: var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23526174' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 0.9rem center; }
.lead select:invalid { color: #6B7A8D; }
.lead textarea { resize: vertical; min-height: 6rem; }
.lead input:focus-visible, .lead select:focus-visible, .lead textarea:focus-visible { outline: 2px solid var(--color-brand-teal); outline-offset: 0; border-color: var(--color-brand-teal); }
.lead [aria-invalid="true"] { border-color: #B42318; }
.fieldset__error { font-size: 0.8125rem; font-weight: 500; color: #B42318; }
.choices { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.choices legend { padding: 0; margin-bottom: 0.6rem; }
.choice { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.choice span { display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 1rem; border-radius: var(--radius-pill); background: var(--color-surface); box-shadow: inset 0 0 0 1px #C9D3DD; /* taste-skill-ignore: form control */ font-size: 0.9375rem; font-weight: 500; transition: background-color var(--t-hover) ease, box-shadow var(--t-hover) ease, color var(--t-hover) ease; }
.choice input:checked + span { background: var(--color-brand-midnight); color: #fff; box-shadow: none; }
.choice input:focus-visible + span { outline: 3px solid var(--color-brand-teal); outline-offset: 2px; }
@media (hover: hover) and (pointer: fine) { .choice input:not(:checked) + span:hover { box-shadow: inset 0 0 0 1px var(--color-brand-midnight); } }
.lead__trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.lead__submit { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.lead__submit .button[aria-busy="true"] { opacity: 0.7; cursor: progress; }
.lead__note { font-size: 0.8125rem; color: var(--color-text-secondary); max-width: 36ch; }
.lead__status { padding: 0.8rem 1rem; border-radius: var(--radius-sm); background: #FDECEA; color: #8A1C12; font-size: var(--step-small); font-weight: 500; }
.lead__done { margin-top: 2.5rem; display: grid; justify-items: start; gap: 1rem; padding: 2rem; border-radius: var(--radius-lg); background: var(--color-surface-lime-subtle); }
.lead__done:focus { outline: none; }
.lead[hidden], .lead__done[hidden], .lead__status[hidden], .fieldset__error[hidden] { display: none; }
.lead__done-title { font-size: var(--step-lead); letter-spacing: -0.01em; }
.contact__side { display: grid; gap: 1rem; }
.book { padding: 1.5rem; border-radius: var(--radius-lg); background: var(--color-surface-teal-subtle); display: grid; justify-items: start; gap: 0.6rem; }
.book__title { font-size: var(--step-lead); font-weight: 600; letter-spacing: -0.01em; }
.book__line { color: var(--color-text-secondary); margin-bottom: 0.4rem; }
.book__mail { font-size: var(--step-small); color: var(--color-text-secondary); margin-top: 0.25rem; }
.agenda-card { padding: 1.25rem 1.25rem 1.5rem; }
@media (max-width: 47.99em) { .lead__grid { grid-template-columns: 1fr; } .lead__submit .button { width: 100%; } }
.contact__rows { margin-top: 4.5rem; display: grid; gap: 1rem; }
.contact__rows div { display: grid; grid-template-columns: 6rem 1fr; gap: 1rem; }
.contact__rows dt { color: var(--color-text-secondary); }
.contact__side { grid-column: 8 / span 5; margin-top: 0.5rem; position: sticky; top: 2rem; }
.contact__side .chart { margin-block: 0.75rem 0.25rem; }
.agenda { margin-top: 1rem; display: grid; gap: 0.25rem; counter-reset: none; }
.agenda li { display: grid; gap: 0.15rem; padding: 0.75rem; border-radius: var(--radius-sm); }
.agenda li:nth-child(2) { background: var(--color-surface-slate-subtle); }
.agenda b { font-weight: 600; }
.agenda span { color: var(--color-text-secondary); }
@media (max-width: 63.99em) {
  .contact__col { grid-column: 1 / -1; max-width: 40rem; }
  .contact__side { grid-column: 1 / -1; margin-top: 4rem; position: static; }
}
@media (max-width: 47.99em) {
  .contact__col, .contact__side { grid-column: 1 / -1; }
  .contact__rows div { grid-template-columns: 1fr; gap: 0.15rem; }
}

/* ---------- 404 ---------- */
.notfound { min-height: 70svh; padding: var(--section) var(--margin); display: grid; align-content: center; gap: 1.5rem; justify-items: start; }
.notfound p { max-width: 46ch; color: var(--color-text-secondary); }

/* ---------- motion (design.md §11: it explains, never decorates) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .hero__half, .js .hero__foot, .js .reel { opacity: 0; transform: translateY(14px); animation: rise 700ms var(--ease-out) forwards; }
  .js .hero__half--a { animation-delay: 80ms; }
  .js .reel { animation-delay: 180ms; }
  .js .hero__half--b { animation-delay: 280ms; }
  .js .hero__foot { animation-delay: 420ms; }
  .js .reel .fc, .js .reel .band, .js .reel .act, .js .reel .act-line { opacity: 0; animation: appear 700ms var(--ease-out) forwards; animation-delay: 900ms; }
  .js .reel .act { animation-delay: 1400ms; }
  .js .reel .obs { stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 1100ms var(--ease-in-out) 350ms forwards; }

  .js [data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 650ms var(--ease-out), transform 800ms var(--ease-out); }
  .js [data-reveal].is-in { opacity: 1; transform: none; }
  .pairs > div:nth-child(3n+2), .hard__list > div:nth-child(2n) { transition-delay: 80ms; }
  .pairs > div:nth-child(3n+3) { transition-delay: 160ms; }
}
@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes appear { to { opacity: 1; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .hero { height: auto; }
  .hero__stage { position: static; }
  .slide { transition: none; }
}

/* ---------- content width: one centred measure, bands stay full-bleed ---------- */
.bar, .hero__stage, .gap, .markets, .goal, .compare, .start, .hard, .letter, .foot, .contact { padding-inline: var(--pad); }
.loop__head { padding-inline: var(--pad); }
.loop__body { padding-inline-end: var(--pad); }
.carousel { padding-inline-start: var(--pad); scroll-padding-inline: var(--pad); }
.close__tile { padding: 2.5rem clamp(2rem, 5vw, 4rem); }
.close__tile p { max-width: 40ch; }
@media (max-width: 63.99em) { .loop__say { padding-inline: var(--pad); } }