/* Unboost — landing. Identité : encre / crème / violet, sarcelle réservée à l'app. */

@font-face {
  font-family: "Sora";
  src: url("fonts/sora-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("fonts/fraunces-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --ink: #0F1B2D;
  --ink-soft: #1B2B44;
  --cream: #F4EFE6;
  --cream-deep: #E9E1D2;
  --violet: #6C5CE7;
  --violet-press: #5849D6;
  --muted-on-cream: #4B5565;
  --muted-on-ink: rgba(244, 239, 230, 0.74);
  --line-on-cream: rgba(15, 27, 45, 0.16);
  --line-on-ink: rgba(244, 239, 230, 0.2);
  --err: #A32A2A;
  --sora: "Sora", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fraunces: "Fraunces", Georgia, "Times New Roman", serif;
  --gutter: clamp(1.25rem, 5vw, 3rem);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sora);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: inherit; text-underline-offset: 0.2em; }
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 3px;
  border-radius: 4px;
}
.hero :focus-visible, .foot :focus-visible, .plan-premium :focus-visible, .helpbar :focus-visible {
  outline-color: var(--cream);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 50;
  background: var(--cream); color: var(--ink); padding: 0.6rem 1rem; border-radius: 6px;
  text-decoration: none; font-weight: 600;
}
.skip:focus { top: 0.75rem; }

.wrap { width: 100%; max-width: 74rem; margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 46rem; }

/* ---------- Wordmark : « un » fin, « boost » gras, « oo » en Fraunces, point violet ---------- */
.wm {
  display: inline-block;
  font-family: var(--sora);
  font-size: 1.75rem;
  letter-spacing: -0.035em;
  line-height: 1;
  text-decoration: none;
  color: inherit;
}
.wm-un { font-weight: 300; }
.wm-boost { font-weight: 700; }
.wm-oo { font-family: var(--fraunces); font-weight: 700; letter-spacing: -0.06em; }
.wm-dot { color: var(--violet); font-weight: 800; margin-left: 0.04em; }
.wm-foot { font-size: 1.5rem; }

/* ---------- Barre d'aide ---------- */
.helpbar {
  background: var(--ink-soft);
  color: var(--cream);
  font-size: 0.875rem;
  line-height: 1.4;
  padding: 0.55rem var(--gutter);
  text-align: center;
  border-bottom: 1px solid var(--line-on-ink);
}
.helpbar a { font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  background: var(--ink);
  color: var(--cream);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(3rem, 7vw, 5.5rem);
}
.hero-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 62rem) {
  .hero-grid { grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr); align-items: center; }
}

.hero-text .wm { margin-bottom: clamp(2rem, 6vw, 4.5rem); color: var(--cream); }

h1 {
  font-weight: 700;
  font-size: clamp(2.15rem, 6.2vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
  max-width: 14em;
}
.sub {
  margin-top: 1.4rem;
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  line-height: 1.5;
  color: var(--muted-on-ink);
  max-width: 28em;
}

.hero-actions {
  margin-top: 2rem;
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.75rem;
}

.reassure {
  margin-top: 2.25rem;
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  font-size: 0.9rem; color: var(--muted-on-ink);
}
.reassure li { display: flex; align-items: center; gap: 0.5rem; }
.reassure li::before {
  content: ""; width: 0.5rem; height: 0.5rem; border-radius: 50%;
  background: var(--violet); flex: none;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--sora); font-weight: 700; font-size: 1.0625rem; line-height: 1.2;
  padding: 0.95rem 1.5rem; min-height: 3.25rem;
  border: 0; border-radius: 0.85rem; cursor: pointer; text-decoration: none;
  transition: background-color 0.15s ease, transform 0.15s ease;
}
.btn-primary { background: var(--violet); color: #fff; }
.btn-primary:hover { background: var(--violet-press); }
.btn-primary:active { transform: translateY(1px); }
.btn-block { width: 100%; }
.btn-link {
  background: none; border: 0; padding: 0.75rem 0; min-height: 2.75rem; cursor: pointer;
  font-family: var(--sora); font-size: 1rem; font-weight: 600; color: var(--cream);
  text-decoration: underline; text-underline-offset: 0.3em; text-decoration-thickness: 1.5px;
}
.btn-link:hover { text-decoration-color: var(--violet); }

/* ---------- Calculateur ---------- */
.calc {
  background: var(--cream);
  color: var(--ink);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  box-shadow: 0 0 0 1px var(--line-on-ink), 0 1.5rem 3rem -1rem rgba(0, 0, 0, 0.5);
  scroll-margin-top: 1.5rem;
}
.calc h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.7rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.2;
}
.calc-intro { margin-top: 0.4rem; color: var(--muted-on-cream); font-size: 0.97rem; }

#calc-form { margin-top: 1.5rem; display: grid; gap: 1.25rem; }

.field label { display: block; font-weight: 600; font-size: 0.98rem; line-height: 1.35; margin-bottom: 0.5rem; }
.opt { font-weight: 400; color: var(--muted-on-cream); }
.hint { margin-top: 0.4rem; font-size: 0.85rem; color: var(--muted-on-cream); }
.err { margin-top: 0.4rem; font-size: 0.9rem; font-weight: 600; color: var(--err); }

.input-eur, .input-plain { position: relative; }
.field input {
  width: 100%;
  font-family: var(--sora); font-weight: 600; font-size: 1.5rem; letter-spacing: -0.02em;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink); background: #fff;
  border: 1.5px solid var(--line-on-cream); border-radius: 0.85rem;
  padding: 0.7rem 1rem; min-height: 3.5rem;
}
.input-eur input { padding-right: 2.75rem; }
.input-eur span {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  font-family: var(--sora); font-size: 1.4rem; font-weight: 600; color: var(--muted-on-cream);
  pointer-events: none;
}
.field input::placeholder { color: rgba(15, 27, 45, 0.3); font-weight: 400; }
.field input:focus { outline: 3px solid var(--violet); outline-offset: 1px; border-color: transparent; }
.field input[aria-invalid="true"] { border-color: var(--err); }

/* ---------- Résultat ---------- */
.result {
  margin-top: 1.75rem; padding-top: 1.75rem;
  border-top: 1.5px solid var(--line-on-cream);
}
.result[hidden] { display: none; }
.result-lead { font-weight: 600; font-size: 1rem; }
.result-big {
  font-family: var(--sora); font-weight: 700;
  font-size: clamp(2.8rem, 8vw, 4rem); line-height: 1.05; letter-spacing: -0.045em;
  margin-top: 0.15rem; font-variant-numeric: lining-nums tabular-nums;
}
.result-line { margin-top: 0.35rem; color: var(--muted-on-cream); font-size: 0.97rem; }
.result-list { margin-top: 1rem; display: grid; gap: 0.35rem; font-size: 1.02rem; }
.result-list strong { font-weight: 700; font-size: 1.1em; letter-spacing: -0.02em; font-variant-numeric: lining-nums tabular-nums; }
.result-note { margin-top: 0.9rem; font-size: 0.82rem; color: var(--muted-on-cream); }

.eq { margin-top: 1rem; padding: 0.75rem 1rem; background: var(--cream-deep); border-radius: 0.75rem; font-size: 0.95rem; }
.eq[hidden] { display: none; }

.after { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1.5px solid var(--line-on-cream); }
.after-text { font-weight: 600; line-height: 1.45; }

/* ---------- Formulaires d'inscription ---------- */
.signup-form { margin-top: 1rem; display: grid; gap: 0.75rem; }
.signup-form input[type="email"] {
  width: 100%;
  font-family: var(--sora); font-size: 1.0625rem; color: var(--ink); background: #fff;
  border: 1.5px solid var(--line-on-cream); border-radius: 0.85rem;
  padding: 0.8rem 1rem; min-height: 3.25rem;
}
.signup-form input[type="email"]:focus { outline: 3px solid var(--violet); outline-offset: 1px; border-color: transparent; }
.signup-form input[aria-invalid="true"] { border-color: var(--err); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-msg { font-size: 0.95rem; font-weight: 600; line-height: 1.4; }
.form-msg[hidden] { display: none; }
.form-msg.is-error { color: var(--err); }
.micro { margin-top: 0.75rem; font-size: 0.82rem; color: var(--muted-on-cream); }

/* ---------- Sections ---------- */
main section { padding-block: clamp(3.5rem, 8vw, 6rem); }
main h2 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.12; text-wrap: balance;
  max-width: 20em;
}
.section-lead { margin-top: 0.75rem; color: var(--muted-on-cream); }

/* Étapes : une vraie séquence, donc numérotée */
.step-list { margin-top: 2.5rem; display: grid; gap: 2rem 3rem; counter-reset: none; }
@media (min-width: 52rem) { .step-list { grid-template-columns: repeat(3, 1fr); } }
.step-list li { display: grid; gap: 0.5rem; align-content: start; }
.step-n {
  display: inline-grid; place-items: center;
  width: 2.5rem; height: 2.5rem; border-radius: 50%;
  background: var(--violet); color: #fff; font-weight: 700; font-size: 1.05rem; margin-bottom: 0.4rem;
}
.step-list h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; }
.step-list p { color: var(--muted-on-cream); max-width: 26em; }

/* Chiffres */
.facts { background: var(--ink); color: var(--cream); }
.facts-grid { margin-top: 2.5rem; display: grid; gap: 2.5rem 4rem; }
@media (min-width: 52rem) { .facts-grid { grid-template-columns: repeat(2, 1fr); } }
.fact {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem); line-height: 1.5; max-width: 26em;
  border-left: 3px solid var(--violet); padding-left: 1.25rem;
}
.fact strong {
  font-weight: 700; font-size: 1.25em; letter-spacing: -0.03em;
  font-variant-numeric: lining-nums tabular-nums; white-space: nowrap;
}
.fact a { display: block; margin-top: 0.75rem; font-size: 0.85rem; color: var(--muted-on-ink); }

/* Offre */
.offer-grid { margin-top: 2.5rem; display: grid; gap: 1.5rem; align-items: stretch; }
@media (min-width: 52rem) { .offer-grid { grid-template-columns: 1fr 1fr; } }
.plan { border-radius: 1.5rem; padding: clamp(1.5rem, 3.5vw, 2.25rem); display: flex; flex-direction: column; gap: 1rem; }
.plan h3 { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; }
.plan ul { display: grid; gap: 0.6rem; }
.plan li { display: flex; gap: 0.75rem; align-items: baseline; line-height: 1.45; }
.plan li::before {
  content: ""; flex: none; width: 0.5rem; height: 0.5rem; border-radius: 50%;
  background: var(--violet); transform: translateY(-0.1em);
}
.plan-foot { font-size: 0.9rem; margin-top: auto; }

.plan-free { border: 2px solid var(--ink); }
.plan-free .plan-foot { color: var(--muted-on-cream); }

.plan-premium { background: var(--ink); color: var(--cream); }
.plan-premium .plan-foot { color: var(--muted-on-ink); text-align: center; }
.price { display: flex; align-items: baseline; gap: 0.6rem; }
.price-n { font-weight: 700; font-size: clamp(2.4rem, 6vw, 3.2rem); letter-spacing: -0.045em; line-height: 1; font-variant-numeric: lining-nums tabular-nums; }
.price-u { color: var(--muted-on-ink); }
.price-alt { color: var(--muted-on-ink); margin-top: -0.4rem; }
.plan-premium .btn { margin-top: 0.5rem; }

/* FAQ */
.faq { background: var(--cream-deep); }
.faq h2 { margin-bottom: 1.5rem; }
details { border-top: 1.5px solid var(--line-on-cream); }
details:last-of-type { border-bottom: 1.5px solid var(--line-on-cream); }
summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.15rem 0; font-weight: 600; font-size: 1.1rem; line-height: 1.35;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: ""; flex: none; width: 0.65rem; height: 0.65rem;
  border-right: 2.5px solid var(--ink); border-bottom: 2.5px solid var(--ink);
  transform: rotate(45deg); transition: transform 0.2s ease; margin-right: 0.25rem;
}
details[open] summary::after { transform: rotate(-135deg); }
details p { padding: 0 0 1.4rem; color: var(--muted-on-cream); max-width: 38em; }
details a { color: var(--ink); font-weight: 600; }
@media (prefers-reduced-motion: reduce) { summary::after { transition: none; } }

/* ---------- Pied de page ---------- */
.foot { background: var(--ink); color: var(--cream); padding-block: 3rem; }
.foot-grid { display: grid; gap: 2rem; }
@media (min-width: 52rem) { .foot-grid { grid-template-columns: 1.2fr 1fr 1fr; align-items: start; } }
.foot-small { margin-top: 0.75rem; color: var(--muted-on-ink); font-size: 0.9rem; }
.foot-links a { padding-block: 0.3rem; }
.foot-links { display: grid; gap: 0.25rem; font-size: 0.97rem; justify-items: start; }
.foot-help { font-size: 0.97rem; line-height: 1.55; }
.foot a { text-underline-offset: 0.25em; }

/* ---------- Fenêtre d'inscription ---------- */
dialog {
  width: min(30rem, calc(100vw - 2rem));
  border: 0; border-radius: 1.5rem; padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--cream); color: var(--ink);
  box-shadow: 0 2rem 4rem -1rem rgba(0, 0, 0, 0.55);
}
dialog::backdrop { background: rgba(15, 27, 45, 0.72); }
dialog h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; padding-right: 2rem; }
dialog > p:not(.micro) { margin-top: 0.6rem; color: var(--muted-on-cream); }
.dlg-close-wrap { position: absolute; right: 0.75rem; top: 0.75rem; margin: 0; }
.dlg-close {
  width: 2.75rem; height: 2.75rem; border: 0; border-radius: 50%; background: transparent;
  font-size: 1.75rem; line-height: 1; cursor: pointer; color: var(--ink);
}
.dlg-close:hover { background: var(--cream-deep); }

[hidden] { display: none !important; }

/* ---------- Pages légales ---------- */
.legal-top { background: var(--ink); color: var(--cream); padding-block: 1.25rem; }
.legal-top .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.legal-top .wm { font-size: 1.6rem; color: var(--cream); text-decoration: none; }
.legal-top a.back { font-size: 0.95rem; padding-block: 0.6rem; }
.legal-top :focus-visible { outline-color: var(--cream); }
.legal { padding-block: clamp(2.5rem, 7vw, 4.5rem); }
.legal h1 { font-size: clamp(2rem, 6vw, 2.75rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.legal .updated { margin-top: 0.75rem; color: var(--muted-on-cream); font-size: 0.92rem; }
.legal .summary { margin-top: 2rem; padding: 1.25rem 1.4rem; background: var(--cream-deep); border-radius: 1rem; display: grid; gap: 0.5rem; }
.legal .summary li { padding-left: 1.4rem; position: relative; }
.legal .summary li::before { content: ""; position: absolute; left: 0.2rem; top: 0.68em; width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--violet); }
.legal h2 { margin-top: 2.75rem; font-size: 1.35rem; font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; }
.legal h3 { margin-top: 1.5rem; font-size: 1.05rem; font-weight: 700; }
.legal p, .legal dl, .legal .list { margin-top: 0.75rem; max-width: 40em; }
.legal .list { display: grid; gap: 0.4rem; }
.legal .list li { padding-left: 1.25rem; position: relative; }
.legal .list li::before { content: "–"; position: absolute; left: 0; color: var(--muted-on-cream); }
.legal dl { display: grid; grid-template-columns: minmax(8rem, max-content) 1fr; gap: 0.4rem 1.25rem; }
.legal dt { font-weight: 600; }
.legal dd { margin: 0; overflow-wrap: anywhere; }
@media (max-width: 30rem) { .legal dl { grid-template-columns: 1fr; gap: 0.1rem; } .legal dd { margin-bottom: 0.6rem; } }
.legal a { font-weight: 600; overflow-wrap: anywhere; }
.legal .note { color: var(--muted-on-cream); font-size: 0.95rem; }
.todo { background: #FFE9A8; color: var(--ink); padding: 0.05em 0.3em; border-radius: 0.25em; font-weight: 600; }