/* ============================================================
   CASE STUDY LAYOUT : Shared CSS for all portfolio case studies
   Layout éditorial sur rail vertical numéroté
   Chaque page de cas client charge ce fichier + sa mockup CSS
   ============================================================ */

:root {
  --cs-rail: 88px;
  --cs-content-max: 920px;
  --cs-section-y: clamp(96px, 12vh, 144px);
  --cs-warm: #faf6f0;
  --cs-warm-2: #f4ecdc;
  --cs-rule: rgba(26,28,31,.08);
  --cs-rule-strong: rgba(26,28,31,.16);
}

/* ───── BREADCRUMB (band fin) ───── */
.cs-breadcrumb {
  background: #fff; padding: 18px 0;
  border-bottom: 1px solid var(--cs-rule);
  font-size: .82rem;
}
.cs-breadcrumb__inner {
  max-width: var(--container-max); margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  color: var(--text-muted);
}
.cs-breadcrumb a { color: var(--text-muted); text-decoration: none; transition: color .2s ease; }
.cs-breadcrumb a:hover { color: var(--primary); }
.cs-breadcrumb [aria-current] { color: var(--dark); font-weight: 600; }
.cs-breadcrumb__sep { color: rgba(0,0,0,.2); }

/* ───── HERO ───── */
.cs-hero {
  position: relative; overflow: hidden;
  padding: clamp(96px, 12vh, 144px) 0 clamp(72px, 9vh, 108px);
  background: #fff;
}
.cs-hero::before, .cs-hero::after {
  content: ''; position: absolute; pointer-events: none;
  border-radius: 50%; filter: blur(80px);
}
.cs-hero::before {
  width: 520px; height: 520px; right: -120px; top: 8%;
  background: rgba(189,79,63,.08);
}
.cs-hero::after {
  width: 380px; height: 380px; left: -100px; bottom: -160px;
  background: rgba(55,101,113,.08);
}

.cs-hero__container {
  max-width: var(--container-max); margin: 0 auto; padding: 0 32px;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 72px; align-items: center; position: relative;
}

.cs-hero__index {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-weight: 700;
  font-size: .72rem; letter-spacing: .22em;
  text-transform: uppercase; color: var(--primary);
  margin-bottom: 32px;
}
.cs-hero__index::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--primary); flex-shrink: 0;
}
.cs-hero__index span {
  color: var(--text-muted); font-weight: 600; letter-spacing: .12em;
}

.cs-hero__title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(2.25rem, 4.6vw, 3.625rem);
  line-height: 1.04; letter-spacing: -.02em;
  margin: 0 0 28px; color: var(--dark);
}
.cs-hero__title em {
  font-style: normal; color: var(--primary);
  position: relative; white-space: nowrap;
}
.cs-hero__title em::after {
  content: ''; position: absolute; left: -2px; right: -2px; bottom: 6px;
  height: 14px; background: rgba(189,79,63,.13);
  z-index: -1; border-radius: 2px;
}

.cs-hero__lead {
  font-size: clamp(1rem, 1.25vw, 1.125rem); line-height: 1.65;
  color: var(--text-muted); margin: 0 0 36px; max-width: 560px;
}

.cs-hero__meta {
  display: grid; grid-template-columns: repeat(2, minmax(0, auto));
  gap: 20px 56px; margin: 0 0 40px; max-width: 480px;
}
.cs-hero__meta dt {
  font-family: var(--font-heading);
  font-size: .66rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 6px;
}
.cs-hero__meta dd {
  font-family: var(--font-heading); font-weight: 700;
  font-size: 1rem; color: var(--dark); margin: 0;
  letter-spacing: -.005em;
}

.cs-hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Visual hero (mockup encadré + ornements) */
.cs-hero__visual {
  position: relative; transform: translateY(28px);
}
.cs-hero__visual-frame {
  aspect-ratio: 4/3; border-radius: 16px; overflow: hidden;
  box-shadow:
    0 32px 64px -24px rgba(26,28,31,.25),
    0 16px 32px -16px rgba(189,79,63,.18),
    0 0 0 1px rgba(0,0,0,.04);
  transition: transform .5s cubic-bezier(.16,1,.3,1);
}
/* hover/lift géré par JS pour cohabiter avec parallax mouse-tracking */
.cs-hero__visual-corner {
  position: absolute; bottom: -20px; right: -20px;
  width: 96px; height: 96px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  border-bottom-right-radius: 16px;
  opacity: .35;
  pointer-events: none;
}
.cs-hero__visual-stamp {
  position: absolute; top: 20px; left: -16px;
  background: var(--dark); color: #fff;
  padding: 8px 16px; border-radius: 999px;
  font-family: var(--font-heading);
  font-size: .68rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase;
  box-shadow: 0 10px 24px -10px rgba(0,0,0,.4);
  z-index: 2;
}

/* ───── BASE MOCKUP (shared by all .pv--*) ───── */
.pv {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  font-family: var(--font-body);
}
.pv__badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 3px;
  font-size: .65rem; font-weight: 700; letter-spacing: .04em;
  white-space: nowrap;
}

/* ───── KEY FACTS STRIP : Redesign Grid 5 colonnes + dividers + dots ───── */
.cs-facts {
  background: linear-gradient(180deg, #fff 0%, #fbfaf7 100%);
  padding: 44px 0;
  border-top: 1px solid var(--cs-rule);
  border-bottom: 1px solid var(--cs-rule);
  position: relative;
  overflow: hidden;
}
.cs-facts::after {
  content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--primary) 50%, transparent 100%);
  opacity: .3;
}
.cs-facts__inner {
  max-width: var(--container-max); margin: 0 auto; padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  align-items: stretch;
}
.cs-fact {
  display: flex; flex-direction: column;
  align-items: flex-start; justify-content: center;
  gap: 10px;
  padding: 4px 28px;
  position: relative;
  transition: transform .35s cubic-bezier(.16,1,.3,1);
}
.cs-fact:first-child { padding-left: 0; }
.cs-fact:last-child { padding-right: 0; }
.cs-fact + .cs-fact::before {
  content: '';
  position: absolute; left: 0; top: 18%; bottom: 18%;
  width: 1px;
  background: linear-gradient(180deg, transparent 0%, var(--cs-rule-strong) 50%, transparent 100%);
}
.cs-fact:hover { transform: translateY(-4px); }
.cs-fact strong {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(1.5rem, 2.2vw, 1.875rem);
  color: var(--dark); letter-spacing: -.02em; line-height: 1.05;
  display: inline-flex; align-items: center; gap: 10px;
  max-width: 100%;
  overflow-wrap: break-word;
  hyphens: auto;
}
.cs-fact strong::before {
  content: '';
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  transition: transform .3s ease, box-shadow .3s ease;
}
.cs-fact:hover strong::before {
  transform: scale(1.4);
  box-shadow: 0 0 0 4px rgba(189,79,63,.12);
}
.cs-fact span {
  font-size: .76rem; color: var(--text-muted);
  font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase;
  padding-left: 17px;
  line-height: 1.3;
}

/* ───── SECTIONS NUMÉROTÉES ───── */
.cs {
  padding: var(--cs-section-y) 0;
  position: relative;
}
.cs--warm { background: var(--cs-warm); }
.cs__inner {
  max-width: var(--container-max); margin: 0 auto; padding: 0 32px;
  display: grid;
  grid-template-columns: var(--cs-rail) minmax(0, 1fr);
  gap: 40px;
}
.cs__num {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(2.75rem, 5vw, 4.25rem); line-height: .9;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--primary);
  letter-spacing: -.02em;
  position: sticky; top: 120px;
  align-self: start;
}
.cs__content { max-width: var(--cs-content-max); }
.cs__content--wide { max-width: none; }
.cs__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-weight: 700;
  font-size: .72rem; letter-spacing: .22em;
  text-transform: uppercase; color: var(--primary);
  margin: 0 0 16px;
}
.cs__eyebrow::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--primary); flex-shrink: 0;
}
.cs__title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(1.875rem, 3vw, 2.5rem);
  line-height: 1.1; letter-spacing: -.015em;
  margin: 0 0 40px; color: var(--dark);
}
.cs__intro {
  font-size: 1.125rem; line-height: 1.65; color: var(--text);
  margin: 0 0 56px; max-width: 720px;
}

/* ───── 01 : Contexte ───── */
.cs-contexte {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 64px; align-items: start;
}
.cs-contexte__prose p {
  font-size: 1.0625rem; line-height: 1.75; color: var(--text);
  margin: 0 0 22px;
}
.cs-contexte__prose p strong { color: var(--dark); font-weight: 600; }
.cs-contexte__prose p:first-of-type::first-letter {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 4rem; line-height: .85; float: left;
  margin: 10px 16px 0 0; color: var(--primary);
}

.cs-pull {
  position: sticky; top: 120px;
  padding: 36px 28px 36px 36px;
  border-left: 3px solid var(--primary);
  background: #fff;
  box-shadow: 0 16px 32px -16px rgba(26,28,31,.08);
  border-radius: 0 6px 6px 0;
}
.cs-pull__mark {
  position: absolute; top: 4px; left: 10px;
  font-family: Georgia, serif; font-size: 4.5rem; line-height: 1;
  color: var(--primary); opacity: .22;
  pointer-events: none; user-select: none;
}
.cs-pull__text {
  font-family: var(--font-heading); font-weight: 700;
  font-size: 1.1875rem; line-height: 1.45; color: var(--dark);
  letter-spacing: -.01em; margin: 0;
}
.cs-pull__source {
  display: block; margin-top: 18px;
  font-size: .68rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-muted);
}

/* ───── 02 : Notre intervention ───── */
.cs-todo {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 56px 64px;
  counter-reset: todo;
  list-style: none;
  padding: 0;
  margin: 0;
}
.cs-todo__item {
  counter-increment: todo;
  position: relative;
  list-style: none;
}
.cs-todo__item::marker { content: none; }
.cs-todo__item::before {
  content: counter(todo, decimal-leading-zero);
  display: block;
  font-family: var(--font-heading); font-weight: 800;
  font-size: 2.25rem; line-height: 1; color: var(--primary);
  margin-bottom: 18px;
  letter-spacing: -.02em;
}
.cs-todo__item:nth-child(even) { transform: translateY(40px); }
.cs-todo__title {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 1.25rem; line-height: 1.25;
  margin: 0 0 12px; color: var(--dark);
  letter-spacing: -.01em;
}
.cs-todo__text {
  font-size: .9375rem; line-height: 1.65; color: var(--text-muted); margin: 0;
}

/* ───── 03 : Résultats ───── */
.cs-results {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 48px 72px;
}
.cs-result {
  padding-top: 24px;
  border-top: 1px solid var(--cs-rule-strong);
  position: relative;
  transition: transform .35s cubic-bezier(.16,1,.3,1), border-top-color .3s ease;
}
.cs-result::before {
  content: '';
  position: absolute; top: -1px; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), #e07568);
  transition: width .5s cubic-bezier(.16,1,.3,1);
}
.cs-result:hover { transform: translateY(-4px); }
.cs-result:hover::before { width: 60px; }
.cs-result__label {
  font-family: var(--font-heading); font-weight: 700;
  font-size: .7rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--primary);
  margin-bottom: 14px;
}
.cs-result__big {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(2.25rem, 3.6vw, 3rem); line-height: .95;
  color: var(--dark); letter-spacing: -.025em;
  margin: 0 0 14px;
}
.cs-result__big sup {
  font-size: .55em; vertical-align: top; margin-left: 2px;
  color: var(--primary); font-weight: 700;
}
.cs-result__text {
  font-size: .9375rem; line-height: 1.65; color: var(--text-muted); margin: 0;
}

/* ───── 04 : Témoignage ───── */
.cs-quote {
  padding: var(--cs-section-y) 0;
  position: relative;
  background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 100%);
  color: #fff; overflow: hidden;
}
.cs-quote::before {
  content: '"'; position: absolute;
  top: -120px; left: -40px; font-family: Georgia, serif;
  font-size: clamp(22rem, 38vw, 36rem); line-height: 1;
  color: rgba(189,79,63,.18); pointer-events: none; user-select: none;
  font-weight: 700;
}
.cs-quote__inner {
  max-width: 1080px; margin: 0 auto; padding: 0 32px;
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: var(--cs-rail) minmax(0, 1fr);
  gap: 40px;
}
.cs-quote__num {
  font-family: var(--font-heading); font-weight: 800;
  font-size: clamp(2.75rem, 5vw, 4.25rem); line-height: .9;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(189,79,63,.7);
  letter-spacing: -.02em;
}
.cs-quote__body { max-width: 880px; }
.cs-quote__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-weight: 700;
  font-size: .72rem; letter-spacing: .22em;
  text-transform: uppercase; color: rgba(189,79,63,.85);
  margin: 0 0 28px;
}
.cs-quote__eyebrow::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: rgba(189,79,63,.85); flex-shrink: 0;
}
.cs-quote__stars {
  color: var(--primary); font-size: 1rem; letter-spacing: 8px;
  margin-bottom: 28px;
}
.cs-quote__text {
  font-family: var(--font-heading); font-weight: 700;
  font-size: clamp(1.375rem, 2.6vw, 2rem); line-height: 1.35;
  color: rgba(240,240,244,.95); letter-spacing: -.012em;
  margin: 0 0 48px;
}
.cs-quote__sig {
  display: flex; justify-content: flex-end;
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px;
}
.cs-quote__sig-inner { text-align: right; font-family: var(--font-heading); }
.cs-quote__sig strong {
  display: block; font-weight: 800; font-size: 1.125rem; color: #fff;
  letter-spacing: -.005em; margin-bottom: 4px;
}
.cs-quote__sig span {
  font-family: var(--font-body); font-weight: 500;
  font-size: .85rem; color: rgba(240,240,244,.55);
}

/* ───── 05 : Projets connexes ───── */
.cs-related {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 24px;
  align-items: stretch;
}
.cs-related__col { display: flex; flex-direction: column; gap: 24px; }
.cs-related-card {
  text-decoration: none; color: inherit;
  display: flex; flex-direction: column; justify-content: space-between;
  background: #fff; border: 1px solid var(--cs-rule);
  border-radius: 14px; padding: 36px 32px;
  box-shadow: 0 10px 28px -16px rgba(26,28,31,.10);
  transition: transform .4s cubic-bezier(.16,1,.3,1), box-shadow .35s ease, border-color .25s ease;
  flex: 1;
}
.cs-related-card--featured {
  background: linear-gradient(165deg, #fff 0%, var(--cs-warm) 100%);
  padding: 56px 44px;
  position: relative; overflow: hidden;
}
.cs-related-card--featured::after {
  content: ''; position: absolute;
  bottom: 24px; right: 24px;
  width: 80px; height: 80px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  border-bottom-right-radius: 12px;
  opacity: .3;
}
.cs-related-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 44px -18px rgba(26,28,31,.18);
  border-color: var(--primary);
}
.cs-related-card__tag {
  font-family: var(--font-heading);
  font-size: .68rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--secondary); margin: 0 0 18px;
}
.cs-related-card h3 {
  font-family: var(--font-heading); font-weight: 800;
  font-size: 1.375rem; line-height: 1.2;
  margin: 0 0 12px; color: var(--dark); letter-spacing: -.012em;
}
.cs-related-card--featured h3 { font-size: 1.875rem; }
.cs-related-card p {
  font-size: .9375rem; line-height: 1.6; color: var(--text-muted); margin: 0 0 32px;
}
.cs-related-card__more {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--primary); font-family: var(--font-heading); font-weight: 700;
  font-size: .8125rem; text-transform: uppercase; letter-spacing: .08em;
}
.cs-related-card__more::after {
  content: '→'; transition: transform .25s ease;
}
.cs-related-card:hover .cs-related-card__more::after { transform: translateX(6px); }

/* ===========================================================
   RESPONSIVE : 320px → 2560px+
   =========================================================== */

@media (min-width: 1600px) {
  :root { --cs-rail: 104px; }
  .cs__inner, .cs-hero__container, .cs-facts__inner, .cs-quote__inner, .cs-breadcrumb__inner {
    padding-left: 48px; padding-right: 48px;
  }
  .cs-hero { padding-top: clamp(120px, 13vh, 168px); }
}

@media (min-width: 2200px) {
  .cs__inner, .cs-hero__container, .cs-facts__inner, .cs-quote__inner, .cs-breadcrumb__inner {
    max-width: 1480px;
  }
}

@media (max-width: 1280px) {
  :root { --cs-rail: 80px; --cs-section-y: clamp(80px, 10vh, 120px); }
  .cs-hero__container { gap: 56px; }
  .cs-hero { padding-top: clamp(88px, 11vh, 128px); padding-bottom: clamp(64px, 8vh, 96px); }
  .cs__inner { gap: 32px; }
  .cs-facts__inner { gap: 44px; }
}

@media (max-width: 1024px) {
  .cs-hero__container { grid-template-columns: 1fr; gap: 56px; align-items: start; }
  .cs-hero__visual { transform: none; max-width: 600px; margin: 0 auto; width: 100%; }
  .cs-hero__visual-stamp { left: -8px; }
  .cs-hero__visual-corner { width: 72px; height: 72px; bottom: -16px; right: -16px; }
  .cs-hero__meta { max-width: none; }
  .cs-results { gap: 40px 56px; }
  .cs-related { grid-template-columns: 1fr; }
  .cs-related-card--featured { padding: 44px 36px; }
  .cs-related-card--featured h3 { font-size: 1.625rem; }
  .cs-related__col { gap: 20px; }
}

@media (max-width: 900px) {
  .cs { padding: clamp(64px, 8vh, 96px) 0; }
  .cs__inner { grid-template-columns: 1fr; gap: 8px; }
  .cs__num { position: static; font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 4px; }
  .cs-contexte { grid-template-columns: 1fr; gap: 40px; }
  .cs-pull { position: static; }
  .cs-todo { grid-template-columns: 1fr; gap: 40px; }
  .cs-todo__item:nth-child(even) { transform: none; }
  .cs-results { grid-template-columns: 1fr; gap: 32px; }
  .cs-quote__inner { grid-template-columns: 1fr; gap: 12px; }
  .cs-quote__num { font-size: clamp(2rem, 4vw, 2.75rem); }
  .cs-quote::before { font-size: clamp(16rem, 30vw, 24rem); top: -60px; }
  .cs-quote__text { font-size: clamp(1.25rem, 2.6vw, 1.625rem); }
  .cs-quote__sig { justify-content: flex-start; text-align: left; }
  .cs-quote__sig-inner { text-align: left; }
}

@media (max-width: 720px) {
  .cs-hero { padding-top: clamp(72px, 9vh, 100px); padding-bottom: clamp(56px, 7vh, 80px); }
  .cs-hero__container { padding: 0 24px; gap: 44px; }
  .cs-hero__index { font-size: .66rem; letter-spacing: .18em; margin-bottom: 24px; }
  .cs-hero__lead { font-size: 1rem; margin-bottom: 32px; }
  .cs-hero__meta { grid-template-columns: repeat(2, 1fr); gap: 18px 32px; margin-bottom: 32px; }
  .cs-hero__actions .btn { flex: 1; min-width: 0; }
  .cs__inner { padding: 0 24px; }
  .cs-breadcrumb__inner, .cs-facts__inner, .cs-quote__inner { padding: 0 24px; }
  .cs-facts { padding: 22px 0; }
  .cs-facts__inner { gap: 24px 36px; justify-content: flex-start; }
  .cs-fact strong { font-size: 1.375rem; }
  .cs-fact span { font-size: .76rem; }
  .cs-contexte__prose p:first-of-type::first-letter { font-size: 3rem; margin-right: 12px; }
  .cs-pull { padding: 28px 22px 28px 28px; }
  .cs-pull__text { font-size: 1.0625rem; }
  .cs-related-card--featured { padding: 36px 28px; }
  .cs-related-card--featured h3 { font-size: 1.5rem; }
}

@media (max-width: 540px) {
  .cs-hero__container, .cs__inner, .cs-breadcrumb__inner, .cs-facts__inner, .cs-quote__inner {
    padding: 0 20px;
  }
  .cs-hero__title { letter-spacing: -.015em; }
  .cs-hero__title em::after { height: 10px; bottom: 4px; }
  .cs-hero__meta { grid-template-columns: 1fr 1fr; gap: 16px 24px; }
  .cs-hero__actions { flex-direction: column; align-items: stretch; }
  .cs-hero__actions .btn { width: 100%; }
  .cs-hero__visual-stamp { font-size: .58rem; padding: 6px 12px; left: -4px; }
  .cs-facts__inner { gap: 20px 28px; }
  .cs-fact { gap: 8px; }
  .cs-fact strong { font-size: 1.25rem; }
  .cs-fact span { font-size: .72rem; }
  .cs-contexte__prose p { font-size: 1rem; }
  .cs-contexte__prose p:first-of-type::first-letter { font-size: 2.5rem; margin: 6px 10px 0 0; }
  .cs-pull { padding: 24px 20px 24px 24px; }
  .cs-pull__text { font-size: 1rem; }
  .cs-result__big { font-size: 2rem; }
  .cs-quote { padding: clamp(64px, 10vh, 96px) 0; }
  .cs-quote::before { font-size: clamp(12rem, 50vw, 18rem); top: -40px; left: -20px; }
  .cs-quote__text { font-size: clamp(1.125rem, 4.5vw, 1.375rem); }
  .cs-quote__stars { letter-spacing: 6px; font-size: .9rem; }
  .cs-related-card { padding: 28px 24px; }
  .cs-related-card--featured { padding: 32px 24px; }
  .cs-related-card--featured h3 { font-size: 1.375rem; }
  .cs-related-card--featured::after { width: 56px; height: 56px; bottom: 16px; right: 16px; }
}

@media (max-width: 380px) {
  .cs-hero__container, .cs__inner, .cs-breadcrumb__inner, .cs-facts__inner, .cs-quote__inner {
    padding: 0 16px;
  }
  .cs-hero__title { font-size: clamp(1.625rem, 7vw, 2rem); line-height: 1.08; }
  .cs-hero__meta { grid-template-columns: 1fr; gap: 14px; }
  .cs-fact { flex-direction: column; align-items: flex-start; gap: 2px; }
  .cs-fact strong { font-size: 1.125rem; }
  .cs__title { font-size: clamp(1.5rem, 7vw, 1.875rem); }
  .cs-quote__text { font-size: clamp(1.0625rem, 5vw, 1.25rem); line-height: 1.4; }
  .cs-result__big { font-size: 1.75rem; }
  .cs-todo__item::before { font-size: 1.875rem; }
  .cs-todo__title { font-size: 1.125rem; }
}

@media (max-width: 900px) and (orientation: landscape) {
  .cs-hero { padding-top: 80px; padding-bottom: 56px; }
  .cs__num { font-size: 2.25rem; }
}

/* ===========================================================
   ENHANCEMENTS : Progress bar, blob drift, reveal, parallax
   =========================================================== */

/* Reading progress bar (top of page) */
.cs-progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, #e07568 60%, var(--secondary) 100%);
  transform: scaleX(0); transform-origin: left center;
  z-index: 9999;
  pointer-events: none;
  will-change: transform;
}

/* Hero blob slow drift (subtle motion) */
@keyframes cs-blob-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-30px, 24px) scale(1.06); }
}
@keyframes cs-blob-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(22px, -18px) scale(1.04); }
}
.cs-hero::before { animation: cs-blob-1 22s ease-in-out infinite; }
.cs-hero::after  { animation: cs-blob-2 26s ease-in-out infinite; }

/* Reveal-on-scroll (JS adds .cs-reveal then .is-revealed) */
.cs-reveal {
  opacity: 0;
  transition: opacity .8s cubic-bezier(.16,1,.3,1);
}
.cs-reveal.is-revealed { opacity: 1; }
.cs-result.cs-reveal,
.cs-related-card.cs-reveal {
  transform: translateY(22px);
  transition: opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1);
}
.cs-result.cs-reveal.is-revealed,
.cs-related-card.cs-reveal.is-revealed {
  transform: translateY(0);
}
/* cs-todo zigzag transform preserved : on n'anime que l'opacité pour ces items */

/* Hero visual frame: baseline transition for parallax JS */
.cs-hero__visual-frame {
  transition: transform .35s cubic-bezier(.16,1,.3,1);
  transform-style: preserve-3d;
  will-change: transform;
}

/* Quote mark subtle breathing */
@keyframes cs-quote-pulse {
  0%, 100% { opacity: .18; }
  50%      { opacity: .26; }
}
.cs-quote::before { animation: cs-quote-pulse 8s ease-in-out infinite; }

/* Section numbers : subtle gradient stroke on hover */
.cs__num {
  transition: -webkit-text-stroke-color .4s ease, transform .4s ease;
}
.cs:hover .cs__num {
  -webkit-text-stroke-color: rgba(189,79,63,.9);
}

/* CTA arrows micro animation */
.cs-related-card__more::after {
  display: inline-block;
}

/* Responsive overrides spécifiques aux nouveautés */
@media (max-width: 1024px) {
  .cs-fact { padding: 4px 20px; }
  .cs-fact strong { gap: 8px; font-size: clamp(1.5rem, 2.2vw, 2rem); }
}
@media (max-width: 720px) {
  .cs-facts { padding: 28px 0; }
  .cs-facts__inner {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 16px;
  }
  .cs-fact { padding: 0; }
  .cs-fact + .cs-fact::before { display: none; }
}
@media (max-width: 480px) {
  .cs-facts__inner { grid-template-columns: repeat(2, 1fr); gap: 20px 12px; }
  .cs-fact strong { font-size: 1.375rem; gap: 6px; }
  .cs-fact strong::before { width: 5px; height: 5px; }
  .cs-fact span { padding-left: 12px; font-size: .7rem; }
}

@media (prefers-reduced-motion: reduce) {
  .cs-hero__visual-frame,
  .cs-related-card,
  .cs-related-card__more::after,
  .cs-fact,
  .cs-result {
    transition: none !important;
  }
  .cs-hero::before, .cs-hero::after { animation: none !important; }
  .cs-quote::before { animation: none !important; }
  .cs-reveal { opacity: 1 !important; transform: none !important; }
}