/* =====================================================================
   Page « Offre de lancement » + formulaire de réservation
   ===================================================================== */
.offer { padding: calc(var(--header-h) + clamp(48px, 8vw, 110px)) 0 clamp(70px, 9vw, 120px); }
.offer h1 { font-size: clamp(40px, 6.2vw, 88px); line-height: 1.02; letter-spacing: -.015em; font-weight: 400; margin: 22px 0 0; max-width: 15ch; }
.offer h2 { font-size: clamp(30px, 3.8vw, 52px); line-height: 1.06; letter-spacing: -.01em; font-weight: 400; margin: 18px 0 0; }
.offer .lead { color: var(--ink-2); font-size: clamp(17px, 1.5vw, 20px); max-width: 620px; margin: 26px 0 0; }
.offer-section { margin-top: clamp(80px, 10vw, 140px); }

/* ---------- Hero ---------- */
.offer-hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(36px, 6vw, 90px); align-items: end; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.seats { display: inline-flex; align-items: center; gap: 12px; margin-top: 28px; padding: 10px 18px 10px 12px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 15px; }
.seats-dots { display: inline-flex; gap: 4px; }
.seats-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-2); }
.seats-dots i.taken { background: transparent; box-shadow: inset 0 0 0 1px var(--line-strong); }
.seats.is-full { border-color: var(--accent); }

/* ---------- Carte prix ---------- */
.price-card { position: relative; border: 2px solid var(--accent); border-radius: var(--radius-lg); background: var(--bg); box-shadow: var(--shadow-lg); padding: clamp(26px, 3vw, 38px); }
.price-card .tag { position: absolute; top: -13px; left: 26px; background: var(--gold); color: var(--ink); font-weight: 600; border-radius: 0 !important; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; }
.price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 10px; margin: 6px 0 0; }
.price strong { font-family: var(--font-display); font-size: clamp(64px, 7vw, 96px); line-height: 1; letter-spacing: -.02em; font-weight: 400; }
.price span { color: var(--muted); font-size: 15px; }
.price-note { color: var(--muted); font-size: 13.5px; margin: 8px 0 0; }
.ticks { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 12px; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; color: var(--ink-2); }
.check { flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.check svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.price-card .btn { width: 100%; }
.price-card .small { display: block; text-align: center; color: var(--muted); font-size: 13px; margin-top: 12px; }

/* ---------- Promesses ---------- */
.promises { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.promise { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface-2); padding: clamp(22px, 2.6vw, 32px); display: flex; flex-direction: column; gap: 10px; }
.promise .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft); display: grid; place-items: center; }
.promise .ico svg { width: 22px; height: 22px; fill: none; stroke: var(--gold-text); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.promise .big { font-family: var(--font-display); font-weight: 400; color: var(--ink); font-size: clamp(28px, 2.6vw, 36px); letter-spacing: -.04em; line-height: 1.05; margin-top: 8px; }
.promise h3 { margin: 0; font-size: 18px; font-weight: 400; letter-spacing: -.01em; }
.promise p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- Échange ---------- */
.deal { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 40px; }
.deal-col { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 36px); background: var(--surface-2); }
.deal-col h3 { margin: 6px 0 0; font-size: 22px; font-weight: 400; letter-spacing: -.02em; }
.deal-col .who { color: var(--muted); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }
.deal-col ul { margin: 18px 0 0; padding-left: 20px; color: var(--ink-2); display: grid; gap: 10px; }

/* ---------- Calendrier ---------- */
.timeline { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.timeline li { border-top: 1px solid var(--gold); padding-top: 18px; }
.timeline .when { display: block; font-family: var(--font-serif); font-style: italic; font-size: 28px; color: var(--gold-text); margin-bottom: 10px; }
.timeline b { display: block; font-weight: 400; font-size: 18px; letter-spacing: -.01em; }
.timeline span:not(.when) { color: var(--muted); font-size: 15px; }

/* ---------- Formulaire de réservation ---------- */
.booking { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(30px, 5vw, 80px); align-items: start; }
.booking-aside { position: sticky; top: calc(var(--header-h) + 30px); }
.booking-aside .reassure { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; color: var(--ink-2); font-size: 15.5px; }
.booking-aside .reassure li { display: flex; gap: 12px; }
.form-card { border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--surface); padding: clamp(22px, 3vw, 40px); }
.progress { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 28px; }
.progress span { display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--muted); }
.progress span::before { content: ""; height: 3px; border-radius: 3px; background: var(--line-strong); transition: background .3s; }
.progress span.is-done, .progress span.is-current { color: var(--ink); }
.progress span.is-done::before, .progress span.is-current::before { background: var(--accent); }
.step[hidden] { display: none; }
.step h3 { margin: 0 0 6px; font-size: 24px; font-weight: 400; letter-spacing: -.02em; }
.step .step-intro { margin: 0 0 22px; color: var(--muted); font-size: 15px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field > label, .field > .label { font-size: 14px; color: var(--ink-2); }
.field .req { color: var(--muted); }
.field input, .field select, .field textarea { width: 100%; box-sizing: border-box; font: inherit; font-size: 16px; color: var(--ink); background: var(--bg); border: 1px solid var(--line-strong); border-radius: 12px; padding: 13px 14px; transition: border-color .2s; }
.field textarea { min-height: 110px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 40px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--accent-2-soft); }
.field .err { display: none; color: var(--danger); font-size: 13px; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--danger); }
.field.invalid .err { display: block; }
.hint { color: var(--muted); font-size: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-strong); font-size: 14.5px; color: var(--ink-2); transition: background .2s, color .2s, border-color .2s; cursor: pointer; }
.chip input:checked + span { background: var(--accent); color: #FFFFFF; border-color: var(--accent); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.chip input:disabled + span { opacity: .4; cursor: not-allowed; }
.styles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.style-opt { position: relative; }
.style-opt input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.style-opt span { display: block; height: 100%; box-sizing: border-box; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line-strong); cursor: pointer; transition: border-color .2s, background .2s; }
.style-opt b { display: block; font-weight: 400; font-size: 16px; }
.style-opt small { color: var(--muted); font-size: 13px; }
.style-opt input:checked + span { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.style-opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.consent-box { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; font-size: 14.5px; color: var(--ink-2); }
.consent-box input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; accent-color: var(--accent); }
.consent-box.invalid { border-color: var(--danger); }
.recap { border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; display: grid; gap: 8px; font-size: 14.5px; margin-bottom: 16px; }
.recap div { display: grid; grid-template-columns: 140px 1fr; gap: 12px; }
.recap dt { color: var(--muted); margin: 0; }
.recap dd { margin: 0; color: var(--ink-2); }
.form-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; }
.form-nav .btn[hidden] { display: none; }
.form-error { margin: 16px 0 0; color: var(--danger); font-size: 14px; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.done { text-align: center; padding: 10px 0; }
.done .ok { width: 64px; height: 64px; border-radius: 50%; background: var(--accent); color: #FFFFFF; display: grid; place-items: center; margin: 0 auto 20px; }
.done .ok svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.done .ref { display: inline-block; margin-top: 14px; padding: 8px 16px; border: 1px dashed var(--line-strong); border-radius: 10px; font-size: 18px; letter-spacing: .08em; }
.done ol { text-align: left; max-width: 440px; margin: 24px auto 0; color: var(--ink-2); display: grid; gap: 8px; }
.demo-banner { margin: 0 0 18px; padding: 10px 14px; border-radius: 12px; border: 1px dashed var(--line-strong); color: var(--muted); font-size: 13px; }

/* ---------- FAQ / CTA ---------- */
.faq { margin-top: 36px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; font-size: 19px; letter-spacing: -.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 26px; line-height: 1; color: var(--gold-text); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0 0 22px; color: var(--ink-2); max-width: 760px; }
.final-cta { text-align: center; border: 0; border-radius: var(--radius-lg); padding: clamp(40px, 6vw, 80px) 24px; background: var(--accent); color: #FFFFFF; }
.final-cta .eyebrow { color: #FFFFFF; }
.final-cta .serif { color: var(--accent-on-night); }
.final-cta .eyebrow::before { background: var(--gold); }
.final-cta .btn-accent { --bg: var(--gold); --fg: var(--ink); --bd: var(--gold); }
.final-cta .btn-accent:hover { --bg: #FFFFFF; --bd: #FFFFFF; box-shadow: 0 18px 36px -14px rgba(0,0,0,.45); }
.final-cta .btn-ghost { --fg: #FFFFFF; --bd: rgba(255,255,255,.6); }
.final-cta .btn-ghost:hover { --fg: #FFFFFF; --bd: #FFFFFF; }
.final-cta :focus-visible { outline-color: var(--gold); }
.final-cta h2 { margin-inline: auto; max-width: 18ch; }
.final-cta p { color: var(--on-night-muted); margin: 18px auto 30px; max-width: 520px; }
.final-cta .actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.fine { color: var(--muted); font-size: 13px; margin-top: 28px; }

@media (max-width: 1080px) {
  .promises { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .offer-hero, .deal, .booking { grid-template-columns: 1fr; }
  .booking-aside { position: static; }
}
@media (max-width: 600px) {
  .promises, .fields, .styles { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .progress span { font-size: 0; }
  .recap div { grid-template-columns: 1fr; gap: 2px; }
  .final-cta .btn, .hero-actions .btn { width: 100%; }
  .form-nav .btn { flex: 1; padding: 0 16px; }
}

fieldset.step { border: 0; margin: 0; padding: 0; min-width: 0; }
.form-nav [data-next], .form-nav [data-submit] { margin-left: auto; }

.style-opt input:checked + span { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }

/* Charte blanc / noir / doré */
.price-card, .promise, .deal-col, .form-card, .final-cta, .style-opt span, .chip span, .seats, .recap, .consent-box, .field input, .field select, .field textarea { border-radius: 0 !important; }
.price-card { border: 1px solid var(--gold); }
.promise .ico { border-radius: 0; background: transparent; border: 1px solid var(--gold); }
/* 3 engagements : 3 colonnes puis 1 */
@media (max-width: 1080px) { .promises { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .promises { grid-template-columns: 1fr; } }

/* Formules au choix dans la carte de prix */
.formula-choice { margin: -8px 0 26px; padding: 16px 18px; border: 1px solid var(--line); background: var(--surface); font-size: 15px; line-height: 1.55; color: var(--ink-2); }
.formula-choice p { margin: 0; }
.formula-choice p + p { margin-top: 8px; }
.formula-choice-title { margin-bottom: 8px !important; font-size: 11px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--gold-text); }
.formula-choice a { color: inherit; text-decoration-color: var(--gold); text-underline-offset: 3px; }
[data-formule] + .hint { display: block; margin-top: 8px; font-size: 13px; color: var(--muted); }
[data-formule] + .hint a { color: var(--ink); }