/* =========================================================
   Apolline Serevaux — site personnel
   Système de design « Relate » : lin clair, Inter serré,
   bleu #145aff en surligneur, jamais en aplat.
   ========================================================= */

:root {
  /* Couleurs */
  --color-linen-canvas: #fcfcfc;
  --color-sky-wash: #f0f4fe;
  --color-midnight-ink: #020520;
  --color-graphite: #14141e;
  --color-slate: #374151;
  --color-ash: #696a72;
  --color-fog: #95959b;
  --color-steel: #6b7280;
  --color-signal-blue: #145aff;
  --color-periwinkle: #b6cbfd;
  --color-primary-action: #0f1f3d;
  --color-emerald: #16ca2e;
  --color-coral: #f26052;
  --color-amber: #ffa64d;
  --color-hairline: #e6e6ea;

  /* Typo */
  --font-inter: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Rayons binaires */
  --radius-card: 8px;
  --radius-badge: 4px;
  --radius-img: 16px;
  --radius-input: 12px;
  --radius-large: 40px;
  --radius-pill: 100px;

  /* Ombres feutrées */
  --shadow-sm: rgba(0, 0, 0, 0.1) 0px 0px 4px -2px;
  --shadow-feature: rgba(0, 0, 0, 0.082) 0px 0.36px 1.81px -1.42px,
                    rgba(0, 0, 0, 0.07) 0px 1.37px 6.87px -2.83px,
                    rgba(0, 0, 0, 0.016) 0px 6px 30px -4.25px;
  --shadow-hero: rgba(20, 90, 255, 0.1) 0px 0px 100px -28px;

  /* Layout */
  --page-max: 1200px;
  --section-gap: 80px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-inter);
  background: var(--color-linen-canvas);
  color: var(--color-graphite);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

/* ---------- Typographie ---------- */
h1, h2, h3, h4 { color: var(--color-midnight-ink); font-weight: 600; }

.display {
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.03;
  letter-spacing: -2.4px;
}

.h-lg {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: -1.2px;
}

.h-md {
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.4px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.14px;
  text-transform: uppercase;
  color: var(--color-signal-blue);
  font-weight: 500;
}

.lede {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-ash);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.54px;
}

.accent { color: var(--color-signal-blue); }

/* Bleu « surligneur, pas peinture » */
.hl {
  color: var(--color-signal-blue);
  font-weight: 500;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-inter);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
  border: 1px solid transparent;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.8);
  color: var(--color-primary-action);
  border: 1px solid var(--color-primary-action);
  border-radius: var(--radius-input);
  padding: 13px 22px;
}
.btn-outline:hover { background: var(--color-primary-action); color: #fff; }

.btn-pill {
  background: var(--color-linen-canvas);
  color: var(--color-primary-action);
  border: 1px solid rgba(20, 90, 255, 0.35);
  border-radius: var(--radius-pill);
  padding: 13px 30px;
}
.btn-pill:hover { border-color: var(--color-signal-blue); color: var(--color-signal-blue); }

.link-arrow {
  color: var(--color-signal-blue);
  font-weight: 500;
  font-size: 15px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.link-arrow:hover { gap: 10px; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(252, 252, 252, 0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-hairline);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--color-midnight-ink);
  font-size: 18px;
}
.brand small {
  font-size: 11px;
  letter-spacing: 0.12px;
  color: var(--color-ash);
  font-weight: 400;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  color: var(--color-slate);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: background 0.15s ease;
}
.nav-links a:hover { background: var(--color-sky-wash); }
.nav-links a.active { color: var(--color-midnight-ink); font-weight: 500; }
.nav-cta { margin-left: 10px; }

.nav-burger { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--color-graphite); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 80px 0 64px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 620px;
  background: radial-gradient(60% 80% at 50% 30%, var(--color-periwinkle) 0%, var(--color-sky-wash) 45%, rgba(252,252,252,0) 78%);
  z-index: 0;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 52px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: 12px;
  color: var(--color-slate);
  margin-bottom: 22px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-emerald); }
.hero h1 { margin-bottom: 20px; }
.hero .lede { max-width: 520px; margin-bottom: 28px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero-note { font-size: 12px; color: var(--color-fog); margin-top: 18px; }

/* Portrait (emplacement photo #1) */
.hero-photo {
  position: relative;
  border-radius: var(--radius-large);
  background: #fff;
  box-shadow: var(--shadow-feature);
  padding: 14px;
}
.photo-frame {
  border-radius: var(--radius-img);
  overflow: hidden;
  background: var(--color-sky-wash);
  aspect-ratio: 4 / 5;
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-caption {
  position: absolute;
  left: 26px;
  bottom: 26px;
  background: rgba(252,252,252,0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 10px 14px;
  font-size: 12px;
  box-shadow: var(--shadow-sm);
}
.photo-caption strong { display: block; color: var(--color-midnight-ink); font-size: 14px; }
.photo-caption span { color: var(--color-ash); }

/* ---------- Bandeau stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
}
.stat-card {
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 20px 22px;
}
.stat-card .num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.99px;
  color: var(--color-midnight-ink);
}
.stat-card .lbl { font-size: 13px; color: var(--color-ash); margin-top: 4px; }

/* ---------- Sections ---------- */
section { padding: var(--section-gap) 0; }
.section-tinted { background: var(--color-sky-wash); }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head .eyebrow { display: block; margin-bottom: 12px; }
.section-head p { color: var(--color-ash); margin-top: 12px; font-size: 16px; }

/* ---------- Cartes expertise ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.expert-card {
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 26px;
  border: 1px solid var(--color-hairline);
}
.expert-card .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-signal-blue);
  letter-spacing: -0.54px;
}
.expert-card h3 { font-size: 18px; margin: 12px 0 8px; letter-spacing: -0.16px; }
.expert-card p { font-size: 14px; color: var(--color-ash); line-height: 1.55; }
.expert-card .bar {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-sky-wash);
  margin-top: 16px;
  overflow: hidden;
}
.expert-card .bar span {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-periwinkle), var(--color-signal-blue));
}

/* ---------- Grande carte éditoriale ---------- */
.feature {
  background: var(--color-linen-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-feature);
  padding: 52px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: center;
}
.feature .photo-frame { aspect-ratio: 3 / 4; }
.feature ul { list-style: none; margin-top: 20px; display: grid; gap: 14px; }
.feature li { display: flex; gap: 12px; font-size: 15px; color: var(--color-slate); }
.feature li .mk {
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--color-signal-blue);
  color: var(--color-signal-blue);
  display: grid; place-items: center;
  font-size: 12px; font-weight: 600;
}

/* ---------- Rubriques signature ---------- */
.rubriques { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.rubrique {
  display: flex; gap: 16px;
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.rubrique .badge {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-signal-blue);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-badge);
  padding: 4px 8px;
  height: fit-content;
}
.rubrique h4 { font-size: 16px; margin-bottom: 4px; letter-spacing: -0.2px; }
.rubrique p { font-size: 14px; color: var(--color-ash); }

/* ---------- Timeline parcours ---------- */
.timeline { display: grid; gap: 0; }
.tl-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--color-hairline);
}
.tl-item:last-child { border-bottom: 1px solid var(--color-hairline); }
.tl-item .yr { font-family: var(--font-mono); font-size: 13px; color: var(--color-signal-blue); letter-spacing: -0.54px; }
.tl-item h4 { font-size: 16px; margin-bottom: 4px; }
.tl-item p { font-size: 14px; color: var(--color-ash); }

/* ---------- Compétences chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  font-size: 14px;
  color: var(--color-slate);
  box-shadow: var(--shadow-sm);
}
.chip.on { border-color: var(--color-signal-blue); color: var(--color-signal-blue); }

/* ---------- Témoignages ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.quote {
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.quote p { font-size: 16px; color: var(--color-graphite); line-height: 1.5; }
.quote .who { margin-top: 16px; font-size: 13px; color: var(--color-ash); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; max-width: 820px; }
.faq details {
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 18px 22px;
  box-shadow: var(--shadow-sm);
}
.faq summary {
  cursor: pointer;
  font-weight: 500;
  font-size: 16px;
  color: var(--color-midnight-ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--color-signal-blue); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "\2013"; }
.faq p { margin-top: 12px; font-size: 15px; color: var(--color-ash); }

/* ---------- Encart jeu responsable ---------- */
.responsible {
  background: var(--color-primary-action);
  color: #fff;
  border-radius: var(--radius-large);
  padding: 48px;
}
.responsible .eyebrow { color: var(--color-periwinkle); }
.responsible h2 { color: #fff; }
.responsible p { color: rgba(255,255,255,0.82); margin-top: 12px; max-width: 640px; }
.responsible .rg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.responsible .rg-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-card);
  padding: 20px;
}
.responsible .rg-card strong { display: block; font-size: 15px; margin-bottom: 6px; }
.responsible .rg-card span { font-size: 13px; color: rgba(255,255,255,0.7); }
.responsible .rg-card a { color: var(--color-periwinkle); }
.age-badge {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-periwinkle);
  color: var(--color-periwinkle);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.social-list { display: grid; gap: 12px; margin-top: 24px; }
.social-list a {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  font-size: 15px;
  transition: border-color 0.15s ease;
}
.social-list a:hover { border-color: var(--color-signal-blue); }
.social-list .plat { color: var(--color-ash); font-size: 13px; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--color-hairline);
  padding: 44px 0 56px;
}
.foot-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.foot-grid p { font-size: 13px; color: var(--color-ash); max-width: 420px; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a { font-size: 14px; color: var(--color-slate); }
.foot-links a:hover { color: var(--color-signal-blue); }
.foot-legal { margin-top: 24px; font-size: 12px; color: var(--color-fog); line-height: 1.6; }

/* =========================================================
   BLOG
   ========================================================= */
.blog-hero { padding: 64px 0 24px; position: relative; overflow: hidden; }
.blog-hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto 40%;
  height: 420px;
  background: radial-gradient(50% 70% at 60% 20%, var(--color-periwinkle) 0%, rgba(252,252,252,0) 70%);
  z-index: 0;
}
.blog-hero .wrap { position: relative; z-index: 1; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin: 28px 0 8px; }

.featured-post {
  background: var(--color-linen-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-feature);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  margin-bottom: 40px;
}
.featured-post .fp-body { padding: 44px; }
.featured-post .fp-media { background: var(--color-sky-wash); min-height: 320px; position: relative; }
.featured-post .fp-media::after {
  content: "Illustration";
  position: absolute; inset: 0; display: grid; place-items: center;
  color: var(--color-fog); font-size: 13px;
}
.post-meta { display: flex; gap: 12px; align-items: center; font-size: 13px; color: var(--color-ash); }
.post-cat {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-signal-blue);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-badge);
  padding: 3px 8px;
}
.featured-post h2 { margin: 16px 0 12px; font-size: 30px; letter-spacing: -0.9px; line-height: 1.1; }
.featured-post p { color: var(--color-ash); margin-bottom: 22px; }

.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card {
  background: #fff;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-feature); }
.post-card .thumb {
  aspect-ratio: 16 / 9;
  background: var(--color-sky-wash);
  position: relative;
}
.post-card .thumb::after {
  content: attr(data-label);
  position: absolute; inset: 0; display: grid; place-items: center;
  color: var(--color-fog); font-size: 12px;
}
.post-card .pc-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.post-card h3 { font-size: 18px; letter-spacing: -0.3px; margin: 10px 0 8px; line-height: 1.25; }
.post-card p { font-size: 14px; color: var(--color-ash); flex: 1; }
.post-card .pc-foot { margin-top: 16px; font-size: 12px; color: var(--color-fog); }

/* ---------- Article ---------- */
.article-hero { padding: 56px 0 32px; }
.article-wrap { max-width: 760px; }
.breadcrumb { font-size: 13px; color: var(--color-ash); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--color-signal-blue); }
.article-hero h1 { font-size: clamp(30px, 4.5vw, 46px); letter-spacing: -1.4px; line-height: 1.08; margin: 16px 0; }
.article-byline { display: flex; align-items: center; gap: 12px; margin-top: 24px; font-size: 14px; color: var(--color-ash); }
.article-byline .av { width: 42px; height: 42px; border-radius: 50%; overflow: hidden; background: var(--color-sky-wash); flex: none; }
.article-byline .av img { width: 100%; height: 100%; object-fit: cover; }
.article-byline strong { color: var(--color-graphite); }

.article-body { max-width: 760px; margin: 0 auto; padding-bottom: 80px; }
.article-body h2 { font-size: 26px; letter-spacing: -0.6px; margin: 40px 0 14px; }
.article-body h3 { font-size: 19px; margin: 28px 0 10px; }
.article-body p { font-size: 17px; line-height: 1.7; color: var(--color-slate); margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px 22px; color: var(--color-slate); }
.article-body li { margin-bottom: 8px; font-size: 17px; line-height: 1.6; }
.article-body a { color: var(--color-signal-blue); text-decoration: underline; text-underline-offset: 3px; }

.lead-para { font-size: 20px !important; line-height: 1.6; color: var(--color-graphite) !important; }

.callout {
  background: var(--color-sky-wash);
  border-left: 3px solid var(--color-signal-blue);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin: 26px 0;
}
.callout strong { color: var(--color-midnight-ink); }
.callout p { margin: 6px 0 0; font-size: 16px; color: var(--color-slate); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.data-table th, .data-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--color-hairline); }
.data-table th { background: var(--color-sky-wash); font-weight: 600; color: var(--color-midnight-ink); font-size: 13px; }
.data-table td { color: var(--color-slate); }
.data-table .mono { color: var(--color-midnight-ink); }

.article-disclaimer {
  margin-top: 40px;
  padding: 20px 24px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  background: #fff;
  font-size: 13px;
  color: var(--color-ash);
  line-height: 1.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo { max-width: 420px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards-grid { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; padding: 32px; }
  .rubriques, .quotes, .post-grid, .responsible .rg-grid { grid-template-columns: 1fr; }
  .featured-post { grid-template-columns: 1fr; }
  .featured-post .fp-media { min-height: 200px; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-burger { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--color-linen-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: 12px 24px; gap: 4px;
  }
  .tl-item { grid-template-columns: 1fr; gap: 6px; }
}