/* ==========================================================================
   VibraTech Creations — direction 2b « Le Dossier de preuve »
   Tokens clair (défaut) + sombre (prefers-color-scheme / toggle persisté).
   Règles : un seul accent par bloc · chiffres de preuve en serif ·
   rayon 2-3px · pas d'ombres diffuses · capture réelle ou placeholder rayé.
   ========================================================================== */

:root {
  --bg: #f7f4ee;
  --ink: #171512;
  --ink-2: rgba(23, 21, 18, 0.65);
  --ink-3: rgba(23, 21, 18, 0.45);
  --accent: #b4451f;
  --accent-ink: #f7f4ee; /* texte posé sur fond accent */
  --line: rgba(23, 21, 18, 0.12);
  --line-strong: rgba(23, 21, 18, 0.3);
  /* bloc contrasté (inversé en mode sombre) */
  --inv-bg: #171512;
  --inv-ink: #f7f4ee;
  --inv-ink-2: rgba(247, 244, 238, 0.65);
  --inv-accent: #e5b98f;
  --inv-line: rgba(247, 244, 238, 0.14);
}

html[data-theme="dark"] {
  --bg: #171512;
  --ink: #f7f4ee;
  --ink-2: rgba(247, 244, 238, 0.65);
  --ink-3: rgba(247, 244, 238, 0.45);
  --accent: #e5b98f;
  --accent-ink: #171512;
  --line: rgba(247, 244, 238, 0.14);
  --line-strong: rgba(247, 244, 238, 0.32);
  --inv-bg: #f7f4ee;
  --inv-ink: #171512;
  --inv-ink-2: rgba(23, 21, 18, 0.65);
  --inv-accent: #b4451f;
  --inv-line: rgba(23, 21, 18, 0.12);
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    --bg: #171512;
    --ink: #f7f4ee;
    --ink-2: rgba(247, 244, 238, 0.65);
    --ink-3: rgba(247, 244, 238, 0.45);
    --accent: #e5b98f;
    --accent-ink: #171512;
    --line: rgba(247, 244, 238, 0.14);
    --line-strong: rgba(247, 244, 238, 0.32);
    --inv-bg: #f7f4ee;
    --inv-ink: #171512;
    --inv-ink-2: rgba(23, 21, 18, 0.65);
    --inv-accent: #b4451f;
    --inv-line: rgba(23, 21, 18, 0.12);
  }
}

/* ---- base ---- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.2s ease, color 0.2s ease;
}
h1, h2, h3, .serif {
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(38px, 5.2vw, 60px); line-height: 1.02; }
h2 { font-size: clamp(27px, 3.4vw, 34px); line-height: 1.12; }
h3 { font-size: clamp(21px, 2.4vw, 26px); line-height: 1.2; }
em, .serif em { font-style: italic; }
.mono, .label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.label { color: var(--accent); display: inline-block; }
p.muted, .muted { color: var(--ink-2); }
.small { font-size: 13.5px; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
a.tlink { color: var(--accent); border-bottom: 1px solid transparent; }
a.tlink:hover { border-bottom-color: var(--accent); }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
hr.rule { border: 0; border-top: 1px solid var(--line); }

/* ---- boutons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 500;
  font-size: 14.5px;
  line-height: 1;
  padding: 14px 22px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn-solid { background: var(--accent); color: var(--accent-ink); }
.btn-solid:hover { opacity: 0.88; }
.btn-outline { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--ink); }

/* ---- nav ---- */
nav.site {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 64px; }
.brand { display: inline-flex; align-items: baseline; gap: 8px; }
.brand .name { font-family: "Instrument Serif", serif; font-size: 21px; }
.brand .sub { font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: 0.18em; color: var(--ink-2); }
.nav-links { display: flex; align-items: center; gap: 26px; overflow-x: auto; }
.nav-links a.nl { font-size: 14px; color: var(--ink-2); white-space: nowrap; }
.nav-links a.nl:hover, .nav-links a.nl[aria-current="page"] { color: var(--ink); }
.nav-links a.nl[aria-current="page"] { border-bottom: 1px solid var(--accent); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .login { font-size: 14px; color: var(--ink-2); }
.nav-cta .login:hover { color: var(--ink); }
.nav-cta .btn { padding: 10px 16px; }
.theme-toggle {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: 0.12em;
  background: none; border: 1px solid var(--line); border-radius: 3px;
  color: var(--ink-2); padding: 7px 10px; cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--line-strong); }

/* ---- sections ---- */
section.block { padding: 88px 0; }
section.block.tight { padding: 56px 0; }
.section-head { max-width: 62ch; margin-bottom: 44px; }
.section-head .label { margin-bottom: 14px; }
.section-head p { margin-top: 14px; color: var(--ink-2); }

/* ---- hero ---- */
.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: start; }
.hero .display { font-size: clamp(38px, 5.2vw, 60px); line-height: 1.02; }
.hero .h1-seo { margin-top: 18px; font-family: "IBM Plex Sans", sans-serif; font-size: 15px; font-weight: 500; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }
.hero p.lead { margin-top: 16px; color: var(--ink-2); max-width: 56ch; }
.hero .actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

/* chiffres de preuve — en serif, jamais en gras sans-serif */
.stats { border-top: 1px solid var(--line); }
.stats .stat { display: flex; align-items: baseline; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.stats .n { font-family: "Instrument Serif", serif; font-size: 44px; line-height: 1; min-width: 92px; }
.stats .d { color: var(--ink-2); font-size: 13.5px; }

/* ---- bloc offres (accueil) ---- */
.offers { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.offer { border: 1px solid var(--line-strong); border-radius: 3px; padding: 30px; display: flex; flex-direction: column; gap: 10px; }
.offer .label { margin-bottom: 4px; }
.offer h3 { font-size: 24px; }
.offer p { color: var(--ink-2); font-size: 14.5px; }
.offer .btn { margin-top: 14px; align-self: flex-start; }
.offer.dark { background: var(--inv-bg); color: var(--inv-ink); border-color: var(--inv-bg); }
.offer.dark p { color: var(--inv-ink-2); }
.offer.dark .label { color: var(--inv-accent); }
.offer.dark .btn { background: var(--inv-accent); color: var(--inv-bg); }

/* ---- cartes dossier / réalisations ---- */
.case-hero { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; border: 1px solid var(--line); border-radius: 3px; padding: 30px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { border: 1px solid var(--line); border-radius: 3px; padding: 26px; display: flex; flex-direction: column; gap: 12px; }
.card h3 { font-size: 22px; }
.card p { color: var(--ink-2); font-size: 14.5px; }
.card .status { margin-top: auto; padding-top: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ---- placeholder rayé (jamais d'illustration générique) ---- */
.ph {
  border: 1px dashed var(--line-strong);
  border-radius: 3px;
  min-height: 240px;
  display: grid;
  place-items: center;
  padding: 20px;
  text-align: center;
  background: repeating-linear-gradient(45deg, transparent 0 12px, var(--line) 12px 13px);
}
.ph span {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-2);
  background: var(--bg); padding: 8px 12px; border: 1px solid var(--line); border-radius: 2px;
}
.ph.short { min-height: 160px; }
.ph.portrait { min-height: 300px; max-width: 260px; }

/* capture réelle : cadre filet, identique dans les deux modes */
.shot { border: 1px solid var(--line); border-radius: 3px; display: block; width: 100%; height: auto; }

/* ---- lecteur en filets (études de cas /studio) ---- */
.dossier { border-top: 1px solid var(--line-strong); }
.dossier-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 26px 0 6px; }
.dossier-head .num { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: 0.16em; color: var(--ink-3); }
.dossier-head h3 { font-size: 30px; }
.dossier-row { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 16px 0; border-top: 1px solid var(--line); }
.dossier-row .k { font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); padding-top: 4px; }
.dossier-row .v { color: var(--ink-2); font-size: 15px; }
.dossier-row .v strong { color: var(--ink); font-weight: 500; }
.dossier-row.status .v { color: var(--accent); font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; }

/* ---- features alternées (/produits) ---- */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 44px 0; border-top: 1px solid var(--line); }
.feature .txt .label { margin-bottom: 12px; }
.feature .txt h3 { margin-bottom: 12px; }
.feature .txt p { color: var(--ink-2); font-size: 15px; }
.feature:nth-child(even) .txt { order: 2; }
.feature:nth-child(even) .vis { order: 1; }

/* ---- pricing ---- */
.grid-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.plan { border: 1px solid var(--line); border-radius: 3px; padding: 28px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--accent); position: relative; }
.plan .flag {
  position: absolute; top: -9px; right: 20px;
  font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: 0.14em;
  background: var(--accent); color: var(--accent-ink); border-radius: 2px; padding: 2px 8px;
}
.plan h3 { font-size: 22px; }
.plan .price { margin: 12px 0 2px; font-family: "Instrument Serif", serif; font-size: 42px; line-height: 1; }
.plan .price small { font-size: 13.5px; color: var(--ink-2); font-family: "IBM Plex Sans", sans-serif; }
.plan .for { color: var(--ink-3); font-size: 13.5px; margin-bottom: 18px; }
.plan ul { list-style: none; margin: 0 0 24px; flex: 1; display: grid; gap: 9px; }
.plan li { color: var(--ink-2); font-size: 14px; padding-left: 20px; position: relative; }
.plan li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }
.plan .btn { justify-content: center; }
.pricing-note { margin-top: 16px; color: var(--ink-3); font-size: 13px; }

/* ---- méthode / étapes ---- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line-strong); }
.step { padding: 22px 20px 8px 0; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step + .step { padding-left: 20px; }
.step .num { font-family: "Instrument Serif", serif; font-size: 30px; color: var(--accent); }
.step h3 { font-size: 19px; font-family: "IBM Plex Sans", sans-serif; font-weight: 500; margin: 10px 0 8px; }
.step p { color: var(--ink-2); font-size: 14px; }

/* ---- doctrine (à propos) ---- */
.doctrine { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.principle { display: grid; grid-template-columns: 80px 1fr; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.principle .num { font-family: "Instrument Serif", serif; font-size: 44px; line-height: 1; color: var(--accent); }
.principle h3 { font-size: 23px; margin-bottom: 6px; }
.principle p { color: var(--ink-2); font-size: 15px; }

/* ---- citation fondateur ---- */
.founder { display: grid; grid-template-columns: 220px 1fr; gap: 44px; align-items: center; }
.founder blockquote { font-family: "Instrument Serif", serif; font-size: clamp(22px, 2.8vw, 30px); line-height: 1.3; font-style: italic; }
.founder .who { margin-top: 16px; color: var(--ink-2); font-size: 14px; }

/* ---- FAQ ---- */
.faq details { border-top: 1px solid var(--line); padding: 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 0;
  font-weight: 500; font-size: 15.5px; display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-family: "IBM Plex Mono", monospace; }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 20px; color: var(--ink-2); font-size: 14.5px; max-width: 70ch; }

/* ---- formulaires ---- */
form.lead { border: 1px solid var(--line); border-radius: 3px; padding: 30px; }
.field { margin-bottom: 18px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
form.lead label { display: block; font-family: "IBM Plex Mono", monospace; font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 8px; }
form.lead label .req { color: var(--accent); }
input, select, textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--line-strong);
  border-radius: 3px; padding: 12px 14px; color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif; font-size: 15px;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 110px; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7' viewBox='0 0 10 7'%3E%3Cpath fill='%23888' d='M5 7 0 0h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.choice { display: flex; align-items: flex-start; gap: 12px; border: 1px solid var(--line); border-radius: 3px; padding: 16px; cursor: pointer; transition: border-color 0.15s; }
.choice:hover { border-color: var(--line-strong); }
.choice input { width: auto; margin-top: 4px; accent-color: var(--accent); }
.choice.on { border-color: var(--accent); }
.choice .t { font-weight: 500; font-size: 15px; font-family: "IBM Plex Sans", sans-serif; text-transform: none; letter-spacing: 0; color: var(--ink); }
.choice .d { color: var(--ink-2); font-size: 13.5px; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-msg { font-size: 14px; margin-top: 14px; min-height: 20px; }
.form-msg.ok { color: #2e7d4f; }
.form-msg.err { color: var(--accent); }
form.lead .btn-solid { width: 100%; justify-content: center; margin-top: 6px; }

/* ---- footer ---- */
footer.site { border-top: 1px solid var(--line); padding: 40px 0; margin-top: 48px; }
.foot-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; align-items: baseline; }
footer.site .brand .name { font-size: 17px; }
footer.site .meta { color: var(--ink-3); font-size: 13px; }
footer.site .meta a:hover { color: var(--accent); }

/* ---- consentement analytics ---- */
.consent {
  position: fixed; inset: auto 16px 16px 16px; z-index: 60;
  max-width: 560px; margin-left: auto;
  background: var(--bg); border: 1px solid var(--line-strong);
  border-radius: 3px; padding: 16px 18px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
}
.consent p { flex: 1 1 260px; margin: 0; color: var(--ink-2); font-size: 13.5px; }
.consent a { color: var(--accent); }
.consent .btn { padding: 8px 14px; font-size: 13px; }

/* ---- révélation ---- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- responsive ---- */
@media (max-width: 940px) {
  .hero-grid, .offers, .case-hero, .feature, .founder, .contact-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); padding-left: 0 !important; }
  .feature:nth-child(even) .txt { order: 0; }
  .feature:nth-child(even) .vis { order: 0; }
  .grid-pricing { grid-template-columns: 1fr; max-width: 480px; }
  .nav-links a.nl { font-size: 13px; }
  .nav-cta .login { display: none; }
}
@media (max-width: 600px) {
  .grid-3, .grid-2, .steps, .row2 { grid-template-columns: 1fr; }
  section.block { padding: 64px 0; }
  .hero { padding: 60px 0 52px; }
  .dossier-row { grid-template-columns: 1fr; gap: 6px; }
  .founder { gap: 24px; }
  .nav-cta .btn { display: none; }
}