/* yaiza-conseil.com — LA CHARTE
   Architectural / modernist. Swiss grid rigor crossed with Haussmanian Paris.
   No framework, no build step, no analytics, no JS libraries. */

/* ─── Tokens ─── */
:root {
  --bg: #F4F1EC;
  --bg-alt: #EAE5DD;
  --ink: #161512;
  --ink-soft: #2A2824;
  --accent: #8A6A3B;
  --accent-hover: #73572E;
  --rule: #C9C0B2;
  --rule-soft: #DED6C7;
  --on-ink: #F4F1EC;

  --font-display: 'Fraunces', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --s-1: 4px;  --s-2: 8px;  --s-3: 16px; --s-4: 24px; --s-5: 32px;
  --s-6: 48px; --s-7: 72px; --s-8: 96px; --s-9: 128px; --s-10: 160px;

  --container-max: 1440px;
  --gutter: clamp(24px, 5vw, 80px);
  --col-gap: 24px;
  --baseline: 8px;
  --easing: cubic-bezier(.2,.6,.2,1);
  --dur-fast: 160ms;
  --dur: 240ms;

  --plumb-progress: 0;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: geometricPrecision;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }

/* ─── Container ─── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}

/* ─── Right-edge plumb line (progressive) ─── */
.plumb {
  position: fixed;
  top: 0; right: 48px;
  width: 1px; height: 100vh;
  background: var(--rule-soft);
  z-index: 1;
  pointer-events: none;
}
.plumb::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: calc(var(--plumb-progress) * 100%);
  background: var(--accent);
  transition: height 60ms linear;
}
@media (max-width: 900px) { .plumb { display: none; } }

/* ─── Section head (floor number + cornice rule) ─── */
.section {
  position: relative;
  padding: var(--s-9) 0 var(--s-8);
}
.section-numeral {
  display: block;
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: 72px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: var(--s-5);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.cornice-rule {
  display: block;
  width: calc((100% - 3 * var(--col-gap)) * 4 / 12);
  min-width: 200px;
  max-width: 420px;
  height: 1px;
  background: var(--rule);
  margin-bottom: var(--s-6);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 var(--s-5);
  color: var(--ink);
  max-width: 20ch;
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}

/* ─── Mono utility ─── */
.mono { font-family: var(--font-mono); font-size: 11px; line-height: 1.4;
        letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.mono-sm { font-family: var(--font-mono); font-size: 13px; line-height: 1.5;
           letter-spacing: 0.04em; color: var(--ink-soft); }
.mono-bronze { color: var(--accent); }

/* ─── Topbar ─── */
.topbar {
  position: relative;
  padding: var(--s-5) 0 var(--s-4);
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: var(--s-5); }
.wordmark {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 17px;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.nav { display: flex; gap: var(--s-5); }
.nav a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color var(--dur-fast) var(--easing);
}
.nav a:hover { color: var(--accent); }

/* ─── Hero ─── */
.hero {
  position: relative;
  padding: var(--s-8) 0 var(--s-9);
  border-bottom: 1px solid var(--rule);
}
.hero__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
  align-items: end;
}
.hero__photo {
  grid-column: 1 / span 8;
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--bg-alt);
  opacity: 0;
  transition: opacity 400ms var(--easing);
}
.hero__photo.loaded, .hero__photo.no-anim { opacity: 1; }
.hero__photo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.hero__panel {
  grid-column: 9 / span 4;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding-bottom: var(--s-3);
}
.hero__eyebrow {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--rule);
}
.hero__kicker {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.hero__standfirst {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
  max-width: 32ch;
}
.hero__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2) var(--s-4);
  padding-top: var(--s-4);
  margin-top: var(--s-2);
  border-top: 1px solid var(--rule);
}
.hero__meta dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
                 text-transform: uppercase; color: var(--ink-soft); margin: 0; }
.hero__meta dd { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
                 color: var(--ink); margin: 0 0 var(--s-2); }
.hero__avail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: var(--s-3);
}
.monogram {
  position: absolute;
  top: var(--s-5);
  right: var(--gutter);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

/* ─── Positionnement band ─── */
.positionnement {
  padding: var(--s-7) 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--rule);
}
.positionnement__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
  align-items: start;
}
.positionnement__label {
  grid-column: 1 / span 2;
}
.positionnement__text {
  grid-column: 3 / span 8;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}

/* ─── Services (load-bearing columns) ─── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.service {
  padding: var(--s-5) var(--s-4) var(--s-5) 0;
  border-right: 1px solid var(--rule);
}
.service:last-child { border-right: none; }
.service:nth-child(n+2) { padding-left: var(--s-5); }
.service__numeral {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: var(--s-4);
  transition: color var(--dur) var(--easing);
}
.service__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 var(--s-3);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.service__body {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 var(--s-5);
}
.service__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color var(--dur) var(--easing);
}
.service:hover .service__numeral,
.service:hover .service__tag { color: var(--accent); }

/* ─── Cornice-relief band (zinc rooftops divider) ─── */
.cornice-band {
  width: 100%;
  height: 320px;
  overflow: hidden;
  background: var(--bg-alt);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.cornice-band img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 700px) { .cornice-band { height: 200px; } }

/* ─── Approche ─── */
.approche__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
  align-items: start;
}
.approche__photo {
  grid-column: 1 / span 5;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-alt);
  margin-left: calc(-1 * var(--gutter));
}
.approche__photo img { width: 100%; height: 100%; object-fit: cover; }
.approche__rows {
  grid-column: 7 / span 6;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.method-row {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--s-4);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--rule);
}
.method-row:first-child { padding-top: 0; }
.method-row:last-child { border-bottom: none; }
.method-row__numeral {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding-top: 4px;
}
.method-row__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 var(--s-2);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.method-row__body {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0;
  max-width: 56ch;
}

/* ─── Statut plaque (4-col credibility) ─── */
.statut {
  padding: var(--s-7) 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.statut__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-5);
}
.statut__col dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
                  text-transform: uppercase; color: var(--ink-soft); margin: 0 0 var(--s-2); }
.statut__col dd {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.statut__col .statut__sub {
  display: block; margin-top: var(--s-2);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  text-transform: none; color: var(--ink-soft);
}
.billing-row {
  display: flex; gap: var(--s-5); flex-wrap: wrap;
  margin-top: var(--s-5);
  padding-top: var(--s-4);
  border-top: 1px solid var(--rule);
}
.billing-row span {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-soft);
}

/* ─── Contact ─── */
.contact__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
  align-items: start;
}
.contact__lead {
  grid-column: 1 / span 4;
}
.contact__lead p {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin: 0;
  max-width: 24ch;
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.contact__meta {
  margin-top: var(--s-6);
  display: flex; flex-direction: column; gap: var(--s-2);
}
.contact__meta span {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-soft);
}
.contact__meta span strong { color: var(--ink); font-weight: 400; }
.contact__form { grid-column: 6 / span 7; }
.field { margin-bottom: var(--s-5); }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-2);
}
.field input, .field textarea {
  width: 100%;
  padding: var(--s-2) 0;
  border: none;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  color: var(--ink);
  line-height: 1.5;
  letter-spacing: -0.01em;
  transition: border-color var(--dur-fast) var(--easing);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}
.field textarea { resize: vertical; min-height: 100px; font-family: var(--font-body); font-size: 16px; }
.submit-row { display: flex; justify-content: flex-end; margin-top: var(--s-5); }
.submit-link {
  background: none; border: none; padding: 0; cursor: pointer;
  font-family: var(--font-display); font-weight: 400; font-size: 20px;
  color: var(--ink); letter-spacing: -0.01em;
  display: inline-flex; align-items: baseline; gap: var(--s-2);
  transition: color var(--dur) var(--easing);
}
.submit-link::after {
  content: "→";
  display: inline-block;
  transition: transform 220ms var(--easing);
}
.submit-link:hover { color: var(--accent); }
.submit-link:hover::after { transform: translateX(4px); }

/* ─── Colophon (ink footer) ─── */
.colophon {
  background: var(--ink);
  color: var(--on-ink);
  padding: var(--s-8) 0 var(--s-6);
  margin-top: 0;
}
.colophon__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
}
.colophon__brand { grid-column: 1 / span 3; }
.colophon__brand .monogram-big {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 64px;
  line-height: 1;
  color: var(--on-ink);
  letter-spacing: -0.02em;
  margin: 0 0 var(--s-3);
}
.colophon__brand p {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(244,241,236,0.5); margin: 0;
}
.colophon__col { grid-column: span 3; }
.colophon__col h4 {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(244,241,236,0.5);
  margin: 0 0 var(--s-3); font-weight: 400;
}
.colophon__col p, .colophon__col a {
  font-family: var(--font-body); font-size: 13px; line-height: 1.6;
  color: var(--on-ink); margin: 0 0 var(--s-2);
}
.colophon__col a { border-bottom: 1px solid rgba(244,241,236,0.2); transition: border-color var(--dur-fast); }
.colophon__col a:hover { border-bottom-color: var(--accent); color: var(--accent); }
.colophon__imprint {
  grid-column: 1 / -1;
  margin-top: var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid rgba(244,241,236,0.15);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  color: rgba(244,241,236,0.5);
  display: flex; justify-content: space-between; gap: var(--s-5); flex-wrap: wrap;
}

/* ─── Merci + qui-je-suis utility ─── */
.merci {
  min-height: 80vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: var(--s-7) var(--gutter);
}
.merci__big {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 1;
  margin: var(--s-4) 0;
  color: var(--ink);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.merci__lede {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 480px;
  margin: 0 auto var(--s-6);
}
.text-link {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  border-bottom: 1px solid var(--rule);
}
.text-link:hover { color: var(--accent-hover); border-bottom-color: var(--accent); }

/* ─── Qui je suis ─── */
.about__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--col-gap);
  align-items: start;
}
.about__portrait {
  grid-column: 1 / span 5;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-alt);
}
.about__portrait img { width: 100%; height: 100%; object-fit: cover; }
.about__text { grid-column: 7 / span 6; }
.about__text p {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 var(--s-4);
  max-width: 56ch;
}
.about__text p.lede {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.45;
  color: var(--ink);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}
.about__text h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 28px;
  margin: var(--s-6) 0 var(--s-3);
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: 'SOFT' 30, 'WONK' 0;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: var(--s-5); }
  .hero__photo { grid-column: 1 / -1; aspect-ratio: 4 / 5; }
  .hero__panel { grid-column: 1 / -1; }
  .monogram { position: static; margin-bottom: var(--s-3); }
  .positionnement__grid { grid-template-columns: 1fr; }
  .positionnement__label, .positionnement__text { grid-column: 1 / -1; }
  .services__grid { grid-template-columns: 1fr; }
  .service { border-right: none; border-bottom: 1px solid var(--rule); padding: var(--s-5) 0; }
  .service:nth-child(n+2) { padding-left: 0; }
  .approche__grid { grid-template-columns: 1fr; }
  .approche__photo { grid-column: 1 / -1; margin-left: calc(-1 * var(--gutter)); margin-right: calc(-1 * var(--gutter)); aspect-ratio: 4 / 5; }
  .approche__rows { grid-column: 1 / -1; margin-top: var(--s-5); }
  .statut__grid { grid-template-columns: 1fr 1fr; gap: var(--s-5); }
  .contact__grid { grid-template-columns: 1fr; }
  .contact__lead, .contact__form { grid-column: 1 / -1; }
  .colophon__grid { grid-template-columns: 1fr; }
  .colophon__col, .colophon__brand { grid-column: 1 / -1; margin-bottom: var(--s-5); }
  .about__grid { grid-template-columns: 1fr; }
  .about__portrait { grid-column: 1 / -1; margin-bottom: var(--s-5); }
  .about__text { grid-column: 1 / -1; }
  .section { padding: var(--s-7) 0 var(--s-6); }
  .section-numeral { font-size: 48px; }
  .cornice-rule { min-width: 120px; }
}

@media (max-width: 500px) {
  .nav { gap: var(--s-3); }
  .hero__kicker { font-size: 36px; }
  .section-title { font-size: 28px; }
  .colophon { padding: var(--s-7) 0 var(--s-5); }
}

/* ─── Honeypot (keep hidden) ─── */
.hp { display: none !important; }