/* The survey: one question per screen on the cream canvas. Answers are white rows that turn ink when chosen, with a
   butter tick; the intro is the one ink block, lit from a corner, with the brand's clay objects at its edges.
   Motion follows the site's « mise au point »: each screen comes into focus in reading order, a chosen answer fills
   with ink from where it was touched, and sending ends in one burst of brackets. */

body.survey { min-height: 100svh; display: grid; grid-template-rows: auto 1fr auto auto; }

.s-top {
  position: sticky; top: 0; z-index: 10;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px;
  padding: 16px var(--gutter);
  background: var(--canvas);
  box-shadow: 0 1px 0 transparent;
  transition: box-shadow 200ms var(--ease-out);
}
.s-top.scrolled { box-shadow: 0 1px 0 var(--border), 0 8px 18px -14px rgba(15, 23, 32, 0.25); }
.s-top .lang { font: 600 0.9rem/1 var(--ui); color: var(--text-2); text-decoration: none; padding: 10px 12px; border-radius: 999px; }
.s-top .lang:hover { background: rgba(15, 23, 32, 0.05); color: var(--text); }

.progress { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 6px 16px; max-width: 520px; width: 100%; justify-self: center; }
.progress[hidden] { display: grid; visibility: hidden; }
.progress .bar { grid-column: 1 / -1; height: 6px; border-radius: 6px; background: var(--sunken); overflow: hidden; }
.progress .bar > span { display: block; height: 100%; background: var(--ink); border-radius: 6px; transform-origin: left center; transition: transform 700ms var(--ease-expo); }
.progress .count { font: 600 0.8rem/1 var(--ui); color: var(--text); font-variant-numeric: tabular-nums; }
.progress .eta { font: 500 0.8rem/1 var(--ui); color: var(--text-3); font-variant-numeric: tabular-nums; }

.s-stage {
  width: min(760px, 100% - 2 * var(--gutter)); margin: 0 auto; padding: clamp(24px, 6vh, 72px) 0 32px;
  transition: opacity 170ms var(--ease-out), transform 220ms var(--ease-out);
}
.s-stage.is-leaving { opacity: 0; transform: translateY(-10px); }
.s-stage.is-leaving.back { transform: translateY(12px); }
/* Entering: the title comes into focus word by word, then the rest follows in reading order. */
.s-stage { --dy: 16px; }
.s-stage.back { --dy: -16px; }
.w { display: inline-block; }
.s-stage.enter h1 .w { animation: focus-in 800ms var(--ease-expo) backwards; animation-delay: calc(var(--i, 0) * 45ms); }
.s-stage.enter .q-sub, .s-stage.enter .optional-tag, .s-stage.enter .k-card, .s-stage.enter .intro-lead, .s-stage.enter .thanks-lead { animation: rise 650ms var(--ease-expo) 120ms backwards; }
.s-stage.enter .intro-points li { animation: rise 650ms var(--ease-expo) backwards; }
.s-stage.enter .intro-points li:nth-child(1) { animation-delay: 220ms; }
.s-stage.enter .intro-points li:nth-child(2) { animation-delay: 290ms; }
.s-stage.enter .intro-points li:nth-child(3) { animation-delay: 360ms; }
.s-stage.enter .intro-ask, .s-stage.enter .intro-actions, .s-stage.enter .intro-note, .s-stage.enter .share, .s-stage.enter .discover { animation: rise 650ms var(--ease-expo) 420ms backwards; }
.s-stage.enter .choice, .s-stage.enter .logo-card, .s-stage.enter .area-wrap, .s-stage.enter .beta, .s-stage.enter .logo-either { animation: rise 650ms var(--ease-expo) backwards; animation-delay: calc(160ms + min(var(--i, 0), 8) * 40ms); }
.s-stage.enter .q-obj { animation: drop 900ms var(--ease-expo) 60ms backwards; }
.s-stage.enter .thanks-logo { animation: drop 900ms var(--ease-expo) backwards; }
@keyframes focus-in { from { opacity: 0; filter: blur(3px); transform: translateY(0.2em); } }
@keyframes rise { from { opacity: 0; transform: translateY(var(--dy, 16px)); } }
@keyframes drop { from { opacity: 0; transform: translateY(-26px) scale(0.7) rotate(-14deg); } }

/* ——— Intro ——— */
body[data-screen='intro'] .s-stage { width: min(1040px, 100% - 2 * var(--gutter)); display: grid; align-content: center; }
.intro {
  padding: clamp(32px, 6vw, 72px); padding-inline-end: clamp(32px, 22vw, 300px);
  min-height: min(620px, 78svh); display: flex; flex-direction: column; justify-content: center; gap: 22px;
}
.intro h1 { font-size: clamp(2.1rem, 4.6vw, 3.9rem); max-width: 15ch; color: var(--on-ink); outline: none; }
.intro h1 em { color: var(--butter); }
.intro-lead { font-size: clamp(1.02rem, 1.4vw, 1.15rem); color: var(--on-ink-muted); max-width: 52ch; }
.intro-points { list-style: none; margin: -4px 0 0; padding: 0; display: grid; gap: 10px; }
.intro-points li { position: relative; padding-inline-start: 30px; font: 700 clamp(1.05rem, 1.6vw, 1.25rem)/1.35 var(--display); letter-spacing: -0.01em; color: var(--on-ink); }
.intro-points li::before, .k-points li::before { content: ''; position: absolute; inset-inline-start: 2px; top: 0.32em; width: 12px; height: 12px; border-top: 2.5px solid var(--butter); border-inline-start: 2.5px solid var(--butter); border-start-start-radius: 5px; }
.intro-ask { font-size: clamp(0.98rem, 1.3vw, 1.08rem); color: var(--on-ink); max-width: 52ch; padding-top: 4px; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.intro-note { font-size: 0.85rem; color: var(--on-ink-muted); max-width: 52ch; }
.btn-lg { --h: 60px; font-size: 1.05rem; padding: 0 30px; }
.btn-ghost.on-ink { color: var(--on-ink); }
.btn-ghost.on-ink:hover { background: rgba(248, 246, 241, 0.08); }
.intro-obj { position: absolute; z-index: -1; height: auto; pointer-events: none; filter: drop-shadow(0 18px 24px rgba(0, 0, 0, 0.35)); }
.intro-obj.obj-a { width: clamp(120px, 17vw, 210px); inset-inline-end: clamp(12px, 5vw, 70px); top: 12%; transform: rotate(-8deg); }
.intro-obj.obj-b { width: clamp(96px, 13vw, 160px); inset-inline-end: clamp(80px, 14vw, 200px); bottom: 9%; transform: rotate(6deg); }
.intro-obj.obj-c { width: clamp(70px, 9vw, 116px); inset-inline-end: clamp(8px, 2vw, 30px); bottom: 34%; transform: rotate(4deg); opacity: 0.95; }
@media (max-width: 720px) {
  body[data-screen='intro'] .s-stage { padding-top: 4px; }
  .intro { padding: 96px 22px 26px; min-height: auto; gap: 16px; }
  .intro h1 { font-size: clamp(1.8rem, 8.4vw, 2.2rem); }
  .intro-lead { font-size: 0.98rem; }
  .intro-points li { font-size: 1rem; }
  .intro-ask { font-size: 0.95rem; }
  .intro-obj.obj-a { width: 80px; top: 16px; inset-inline-end: 16px; }
  .intro-obj.obj-b { width: 70px; top: 24px; bottom: auto; inset-inline-end: 100px; }
  .intro-obj.obj-c { width: 48px; top: 22px; bottom: auto; inset-inline-end: auto; inset-inline-start: 22px; }
}
@media (max-width: 560px) {
  .s-top { gap: 14px; padding-block: 12px; }
  .s-top .brand { font-size: 0; gap: 0; }
  .progress .eta { display: none; }
  .progress { grid-template-columns: 1fr; }
}
.intro-obj { animation: settle 900ms var(--ease-out) both; }
.intro-obj.obj-b { animation-delay: 90ms; }
.intro-obj.obj-c { animation-delay: 180ms; }
@keyframes settle { from { opacity: 0; translate: 0 18px; } to { opacity: 1; translate: 0 0; } }

/* ——— Question ——— */
.q-head { position: relative; padding-inline-end: clamp(0px, 14vw, 132px); margin-bottom: clamp(22px, 4vh, 34px); }
.q-title { font-size: clamp(1.75rem, 3.6vw, 2.75rem); line-height: 1.08; letter-spacing: -0.02em; outline: none; }
.q-title em { color: var(--clay-text); }
.q-sub { margin-top: 12px; color: var(--text-2); font-size: 1.02rem; max-width: 56ch; }
.q-obj { position: absolute; inset-inline-end: 0; top: -14px; width: clamp(64px, 11vw, 118px); height: auto; filter: drop-shadow(0 12px 16px rgba(15, 23, 32, 0.14)); }
@media (max-width: 560px) {
  .q-head { padding-inline-end: 76px; }
  .q-obj { width: 64px; top: -4px; }
}

.choices { display: grid; gap: 10px; }
.choices.compact { grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }
.choice {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; grid-template-columns: 30px 1fr 26px; align-items: center; gap: 14px;
  min-height: 64px; padding: 14px 18px; text-align: start; cursor: pointer;
  background: var(--surface); border: 0; border-radius: var(--r-md);
  font: 500 1.05rem/1.35 var(--ui); color: var(--text);
  transition: background-color 150ms var(--ease-out), color 150ms var(--ease-out), transform 150ms var(--ease-out), box-shadow 200ms var(--ease-out);
}
.choice::before {
  content: ''; position: absolute; inset: 0; z-index: -1; background: var(--ink);
  clip-path: circle(0% at var(--cx, 50%) var(--cy, 50%)); transition: clip-path 520ms var(--ease-expo);
}
.choice.on::before { clip-path: circle(150% at var(--cx, 50%) var(--cy, 50%)); }
.choice:hover { box-shadow: 0 0 0 2px var(--border-strong) inset; }
.choice:hover .key { background: var(--butter-tint); color: var(--ink); }
@media (hover: hover) { .choice:not(.on):not(.blocked):hover { transform: translateX(3px); } }
.choice:active { transform: scale(0.985); }
.choice .label { display: grid; gap: 4px; min-width: 0; }
.choice-hint { font: 400 0.9rem/1.4 var(--ui); color: var(--text-2); }
.choice.on .choice-hint { color: var(--on-ink-muted); }
.choice.has-hint { padding-block: 16px; }
.choice .key { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--sunken); font: 600 0.85rem/1 var(--ui); color: var(--text-2); font-variant-numeric: tabular-nums; }
.choice .tick { width: 26px; height: 26px; border-radius: 999px; display: grid; place-items: center; box-shadow: 0 0 0 2px var(--border-strong) inset; color: transparent; transition: inherit; }
.choices[role='radiogroup'] .choice .tick { border-radius: 999px; }
.choices[role='group'] .choice .tick { border-radius: 8px; }
.choice.on { color: var(--on-ink); box-shadow: none; transition-delay: 60ms; }
.choice.on .key { background: var(--ink-raised); color: var(--on-ink-muted); }
.choice.on .tick { background: var(--butter); color: var(--ink); box-shadow: none; animation: pop 460ms var(--ease-expo) 80ms backwards; }
.choice .tick path { stroke-dasharray: 22; stroke-dashoffset: 22; transition: stroke-dashoffset 320ms var(--ease-expo) 160ms; }
.choice.on .tick path { stroke-dashoffset: 0; }
@keyframes pop { from { transform: scale(0.3); } }
.choice.blocked { opacity: 0.45; cursor: not-allowed; }
.choice.blocked:hover { box-shadow: none; }
@media (hover: none) { .choice .key { display: none; } .choice { grid-template-columns: 1fr 26px; } }

.field {
  width: 100%; border: 0; border-radius: var(--r-md); background: var(--surface);
  padding: 18px 20px; font: 400 1.05rem/1.5 var(--ui); color: var(--text);
  box-shadow: 0 0 0 2px transparent inset; transition: box-shadow 150ms var(--ease-out);
}
.field::placeholder { color: var(--text-3); }
.field:focus { outline: none; box-shadow: 0 0 0 2px var(--ink) inset; }
.area { resize: none; min-height: 150px; overflow: hidden; transition: box-shadow 150ms var(--ease-out); }
.area-wrap { position: relative; }
.chars { position: absolute; inset-inline-end: 16px; bottom: 12px; font: 500 0.78rem/1 var(--ui); color: var(--text-3); font-variant-numeric: tabular-nums; pointer-events: none; }
.burst { position: fixed; inset: 0; z-index: 60; pointer-events: none; overflow: hidden; }
.burst .piece { position: absolute; -webkit-mask: url('/assets/corner.svg') no-repeat center / contain; mask: url('/assets/corner.svg') no-repeat center / contain; }
.discover { display: inline-flex; align-items: center; gap: 8px; }
.discover .arrow-s { display: inline-grid; transition: transform 250ms var(--ease-expo); }
.discover:hover .arrow-s { transform: translateX(4px); }
.btn .arrow { transition: transform 300ms var(--ease-expo); }
.btn:hover .arrow { transform: translateX(3px); }
@media (prefers-reduced-motion: reduce) {
  .s-stage.enter *, .s-stage.enter h1 .w { animation: none !important; }
  .choice::before { transition: none; }
  .logo-card, .logo-card:hover { transform: none; }
}

/* "Other": the few words appear right under the choice */
.other-wrap { padding: 2px 0 6px; }
.other-wrap[hidden] { display: none; }
.other-wrap:not([hidden]) { animation: rise 420ms var(--ease-expo) backwards; }
.other-field { padding: 16px 18px; box-shadow: 0 0 0 2px var(--ink) inset; }

/* Optional questions say so, loudly: nothing to write is a fine answer */
.optional-tag { display: inline-flex; align-items: baseline; flex-wrap: wrap; gap: 4px 12px; margin-bottom: 16px; }
.optional-tag strong { font: 800 clamp(1.2rem, 2vw, 1.4rem)/1 var(--display); letter-spacing: -0.01em; background: var(--butter); color: var(--ink); padding: 9px 16px 10px; border-radius: 999px; }
.optional-tag span { font: 500 0.95rem/1.3 var(--ui); color: var(--text-2); }

/* Kerlo in short, before the questions that need it */
.k-card { padding: clamp(22px, 3.4vw, 32px); margin-bottom: clamp(26px, 4vh, 38px); border-radius: var(--r-lg); }
.k-card-title { display: flex; align-items: center; gap: 12px; font: 800 1.2rem/1.2 var(--display); letter-spacing: -0.02em; color: var(--on-ink); }
.k-card-title img { width: 28px; height: 28px; border-radius: 8px; }
.k-points { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 12px; }
.k-points li { position: relative; padding-inline-start: 26px; color: var(--on-ink); font-size: 1rem; line-height: 1.45; }
.k-card-foot { margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(248, 246, 241, 0.12); font-size: 0.92rem; color: var(--on-ink-muted); }
@media (max-width: 560px) {
  .k-card { padding: 18px 18px 16px; margin-bottom: 22px; }
  .k-card-title { font-size: 1.05rem; }
  .k-points { gap: 8px; margin-top: 12px; }
  .k-points li { font-size: 0.92rem; line-height: 1.4; padding-inline-start: 22px; }
  .k-card-foot { margin-top: 12px; padding-top: 10px; font-size: 0.84rem; }
  .q-title { font-size: 1.62rem; }
}

/* Logo */
.logos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(12px, 3vw, 22px); }
.logo-card {
  position: relative; display: grid; gap: 14px; padding: 12px; border: 0; cursor: pointer; text-align: start;
  background: var(--surface); border-radius: var(--r-lg); transition: transform 380ms var(--ease-expo), box-shadow 220ms var(--ease-out);
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
}
.logo-card:hover { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(-4px); box-shadow: var(--shadow-float); }
.logo-card .lockup { transition: transform 500ms var(--ease-expo); }
.logo-card:hover .lockup { transform: scale(1.04); }
.logo-stage { container-type: inline-size; display: grid; place-items: center; aspect-ratio: 5 / 4; border-radius: calc(var(--r-lg) - 6px); background: var(--canvas); }
.lockup { display: inline-flex; align-items: center; gap: 5.5cqi; }
.lockup img { width: 24cqi; height: 24cqi; border-radius: 6.2cqi; box-shadow: 0 2.4cqi 5cqi rgba(15, 23, 32, 0.16); }
.lockup .wordmark { font: 800 20cqi/1 var(--display); letter-spacing: -0.035em; color: var(--ink); translate: 0 -0.04em; }
.logo-name { display: flex; align-items: center; gap: 10px; font: 600 1rem/1.3 var(--ui); padding: 0 6px 6px; }
.logo-name .key { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; background: var(--sunken); font: 600 0.8rem/1 var(--ui); color: var(--text-2); flex: none; }
.logo-card .tick { position: absolute; top: 22px; inset-inline-end: 22px; width: 34px; height: 34px; border-radius: 999px; display: grid; place-items: center; background: var(--butter); color: var(--ink); opacity: 0; transform: scale(0.6); transition: opacity 180ms var(--ease-out), transform 220ms var(--ease-out); }
.logo-card.on { box-shadow: 0 0 0 3px var(--ink); }
.logo-card.on .tick { opacity: 1; transform: none; animation: pop 460ms var(--ease-expo) backwards; }
.logo-either { display: flex; justify-content: center; margin-top: 14px; }
.logo-either [aria-checked='true'] { background: var(--ink); color: var(--on-ink); }

/* Last step: sending needs nothing; the beta block is a bonus */
.beta { display: grid; gap: 12px; max-width: 600px; padding: clamp(20px, 3.4vw, 30px); background: var(--surface); border-radius: var(--r-lg); }
.beta-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.beta h2 { font-size: clamp(1.2rem, 2.2vw, 1.45rem); line-height: 1.2; letter-spacing: -0.02em; }
.optional-chip { flex: none; font: 700 0.85rem/1 var(--ui); padding: 8px 12px; border-radius: 999px; background: var(--sunken); color: var(--text-2); }
.beta-sub { color: var(--text-2); font-size: 0.98rem; margin-bottom: 4px; }
.segmented { display: inline-flex; justify-self: start; padding: 4px; gap: 4px; border-radius: 999px; background: var(--sunken); }
.seg { border: 0; background: transparent; font: 600 0.92rem/1 var(--ui); color: var(--text-2); padding: 10px 16px; border-radius: 999px; cursor: pointer; transition: background-color 150ms var(--ease-out), color 150ms var(--ease-out); }
.seg[aria-checked='true'] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 4px rgba(15, 23, 32, 0.12); }
.segmented { position: relative; }
.seg { position: relative; z-index: 1; }
.seg-ink { display: none; }
.segmented.ready .seg[aria-checked='true'] { background: transparent; box-shadow: none; }
.segmented.ready .seg-ink {
  display: block; position: absolute; z-index: 0; top: 0; left: 0; border-radius: 999px; transform-origin: 0 0;
  background: var(--surface); box-shadow: 0 1px 4px rgba(15, 23, 32, 0.12);
}
.field-label { font: 600 0.9rem/1 var(--ui); color: var(--text-2); margin-top: 6px; }
.beta .field { background: var(--canvas); }
.beta-note { font-size: 0.86rem; color: var(--text-2); }
.form-msg { min-height: 1.2em; font-size: 0.92rem; color: #8A3F2B; }
.form-msg:empty { min-height: 0; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* Footer bar */
.s-foot {
  position: sticky; bottom: 0; z-index: 10;
  width: min(760px, 100% - 2 * var(--gutter)); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 0 calc(14px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--canvas) 70%, rgba(243, 240, 233, 0));
}
.s-foot:empty { display: none; }
body[data-screen='intro'] .s-foot, body[data-screen='thanks'] .s-foot { display: none; }
.s-foot .back { padding-inline-start: 10px; color: var(--text-2); }
.s-foot .back .chev { display: inline-grid; }
/* On a phone the last step keeps its full send label; going back shrinks to its arrow */
@media (max-width: 420px) { .s-foot:has(.btn-send) .back { font-size: 0; gap: 0; padding-inline: 12px; } }
.s-foot .hint { font-size: 0.82rem; color: var(--text-3); }
@media (hover: none) { .s-foot .hint { display: none; } }
.foot-end { display: flex; align-items: center; gap: 16px; margin-inline-start: auto; }
.pick-hint { font: 600 0.85rem/1 var(--ui); color: var(--text-2); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Thanks */
.thanks { display: grid; justify-items: center; text-align: center; gap: 22px; padding-top: clamp(8px, 4vh, 40px); }
.thanks-logo { width: 88px; height: 88px; border-radius: 22px; box-shadow: var(--shadow-float); }
.thanks-title { font-size: clamp(2.6rem, 7vw, 4.6rem); outline: none; }
.thanks-lead { color: var(--text-2); font-size: 1.08rem; max-width: 52ch; }
.share { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.btn .ico { display: inline-grid; }
.btn-send { white-space: nowrap; }
.discover { font: 600 1rem/1 var(--ui); color: var(--text); text-underline-offset: 5px; text-decoration-thickness: 2px; text-decoration-color: var(--butter); margin-top: 6px; }
.discover:hover { text-decoration-color: var(--ink); }

.s-bottom { padding: 18px var(--gutter) 22px; display: flex; justify-content: center; gap: 18px; font-size: 0.82rem; color: var(--text-3); }
.s-bottom a { color: inherit; text-underline-offset: 3px; }
body[data-screen='question'] .s-bottom { display: none; }