/* ============================================================
   EXCEL BTP — Page Particuliers (modulaires vitrés)
   Direction : Carnet d'architecte modulaire — monographie premium
   Palette V4 : #14539A bleu · #F87A02 orange · #FAF6EE crème
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,200..900;1,9..144,200..900&display=swap');

.part {
  --c-paper:      #FAF6EE;
  --c-paper-soft: #F0E9DC;
  --c-ink:        #0A1828;
  --c-ink-soft:   #14539A;
  --c-marker:     #F87A02;
  --c-marker-soft:#FF9B3D;
  --c-rule:       #D8CFC0;
  --c-rule-dark:  rgba(250,246,238,0.18);
  --display:      'Fraunces', Georgia, serif;
  --mono:         'JetBrains Mono', ui-monospace, monospace;
  --easing:       cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--c-paper);
}

/* Texture papier */
.part {
  background-image:
    radial-gradient(circle at 15% 20%, rgba(20, 83, 154, 0.03) 0%, transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(248, 122, 2, 0.02) 0%, transparent 45%);
}

/* Curseur custom */
.part-cursor {
  position: fixed;
  top: 0; left: 0;
  width: 14px;
  height: 14px;
  margin-left: -7px;
  margin-top: -7px;
  border: 1.5px solid var(--c-marker);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  transition: width 0.25s var(--easing), height 0.25s var(--easing), margin 0.25s var(--easing), background 0.25s ease, border-color 0.25s ease;
}
.part-cursor--hover {
  width: 38px;
  height: 38px;
  margin-left: -19px;
  margin-top: -19px;
  background: rgba(248, 122, 2, 0.12);
}
@media (pointer: coarse) {
  .part-cursor { display: none; }
}

/* Scroll progress fin */
.part-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: rgba(20, 83, 154, 0.06);
  z-index: 1000;
  pointer-events: none;
}
.part-progress__bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--c-marker), var(--c-marker-soft));
  box-shadow: 0 0 8px rgba(248, 122, 2, 0.45);
  transition: width 0.1s linear;
}

/* Nav override */
.part .nav {
  background: rgba(250, 246, 238, 0);
  border-bottom: 1px solid rgba(255, 255, 255, 0);
  transition: background 0.4s ease, border-color 0.4s ease;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
}
.part .nav--scrolled {
  background: rgba(250, 246, 238, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(10, 24, 40, 0.10);
}
.part .nav__menu a { color: #FAF6EE; font-weight: 500; transition: color 0.3s ease; }
.part .nav--scrolled .nav__menu a { color: var(--c-ink-soft); }
.part .nav__menu a:hover { color: var(--c-marker); }
.part .nav__cta { background: var(--c-ink); color: #FAF6EE; border-radius: 0; }
.part .nav__cta:hover { background: var(--c-marker); color: var(--c-ink); }

/* TopBar */
.part .topbar {
  background: var(--c-ink);
  font-family: var(--display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.04em;
  font-weight: 300;
}
.part .topbar__track span::before {
  content: '◇';
  color: var(--c-marker);
  font-size: 9px;
}

/* ============================================================
   HERO — couverture éditoriale
   ============================================================ */
.part-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #FAF6EE;
  overflow: hidden;
  padding-top: 120px;
}
.part-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.part-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: heroKB 28s ease-in-out infinite alternate;
}
@keyframes heroKB {
  from { transform: scale(1.02) translate(0, 0); }
  to   { transform: scale(1.10) translate(-1.5%, -1%); }
}
.part-hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 24, 40, 0.12) 0%, rgba(10, 24, 40, 0.35) 40%, rgba(10, 24, 40, 0.88) 100%),
    linear-gradient(95deg, rgba(10, 24, 40, 0.50) 0%, rgba(10, 24, 40, 0.05) 70%);
}

/* Chrono haut */
.part-hero__chrono {
  position: absolute;
  top: 116px;
  left: clamp(24px, 4vw, 56px);
  right: clamp(24px, 4vw, 56px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(250, 246, 238, 0.6);
}
.part-hero__chrono .l {
  display: flex;
  align-items: center;
  gap: 14px;
}
.part-hero__chrono .l::before {
  content: '';
  width: 38px;
  height: 1px;
  background: var(--c-marker);
}
.part-hero__chrono .r { font-feature-settings: 'tnum'; }

/* Watermark "vitré" massif */
.part-hero__watermark {
  position: absolute;
  right: -4vw;
  bottom: -6vh;
  z-index: 1;
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: 42vw;
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: var(--c-marker);
  opacity: 0.06;
  pointer-events: none;
  user-select: none;
}

.part-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: end;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 80px clamp(24px, 4vw, 56px) 100px;
}
.part-hero__col-l { max-width: 760px; }

/* Eyebrow chapitre */
.part-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-marker);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.8s var(--easing) 0.1s forwards;
}
.part-hero__eyebrow span {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: 36px;
  line-height: 1;
  color: var(--c-marker);
  letter-spacing: -0.04em;
}

/* Titre */
.part-hero__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(3rem, 9vw, 8rem);
  letter-spacing: -0.04em;
  line-height: 0.92;
  color: #FAF6EE;
  margin-bottom: 48px;
  max-width: 16ch;
}
.part-hero__title em {
  font-style: italic;
  color: var(--c-marker);
  font-weight: 300;
}
.part-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.0s var(--easing), transform 1.0s var(--easing);
}
.part-hero__title .part-word:nth-child(1) { transition-delay: 0.15s; }
.part-hero__title .part-word:nth-child(2) { transition-delay: 0.25s; }
.part-hero__title em:nth-of-type(1) .part-word { transition-delay: 0.35s; }
.part-hero__title .part-word:nth-child(4) { transition-delay: 0.5s; }
.part-hero__title .part-word:nth-child(5) { transition-delay: 0.58s; }
.part-hero__title em:nth-of-type(2) .part-word { transition-delay: 0.66s; }
.part-hero__title.in .part-word,
body.part .part-hero__title .part-word {
  opacity: 1;
  transform: translateY(0);
}

.part-hero__lede {
  font-family: var(--display);
  font-weight: 300;
  font-variation-settings: "opsz" 36;
  font-style: italic;
  font-size: clamp(1.05rem, 1.45vw, 1.4rem);
  line-height: 1.6;
  color: rgba(250, 246, 238, 0.88);
  max-width: 56ch;
  margin-bottom: 56px;
  opacity: 0;
  animation: fadeUp 0.9s var(--easing) 0.85s forwards;
}
.part-hero__lede strong {
  font-weight: 500;
  color: #FAF6EE;
  font-style: italic;
}

.part-hero__ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s var(--easing) 1.05s forwards;
}

/* Sidemark exergue */
.part-hero__col-r {
  display: flex;
  justify-content: flex-end;
}
.part-hero__sidemark {
  max-width: 280px;
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
  opacity: 0;
  animation: fadeUp 0.9s var(--easing) 1.3s forwards;
}
.part-hero__sidemark-line {
  width: 48px;
  height: 1px;
  background: var(--c-marker);
}
.part-hero__sidemark-txt {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 24;
  font-size: 16px;
  line-height: 1.5;
  color: rgba(250, 246, 238, 0.78);
}
.part-hero__sidemark-txt em {
  color: var(--c-marker);
  font-weight: 400;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Logo watermark hero */
.part-hero__logo {
  position: absolute;
  bottom: clamp(28px, 4vw, 48px);
  right: clamp(24px, 4vw, 56px);
  width: clamp(64px, 8vw, 110px);
  height: auto;
  z-index: 3;
  pointer-events: none;
  opacity: 0.92;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.5));
}
@media (max-width: 720px) {
  .part-hero__logo { bottom: 80px; right: 18px; width: 56px; }
}

/* Hint scroll */
.part-hero__hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(250, 246, 238, 0.55);
}
.part-hero__hint::after {
  content: '';
  width: 1px;
  height: 36px;
  background: var(--c-marker);
  animation: hintLine 2.4s ease-in-out infinite;
  transform-origin: top;
}
@keyframes hintLine {
  0%, 100% { transform: scaleY(0.4); }
  50%      { transform: scaleY(1); }
}

/* Boutons */
.part-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 32px;
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  font-size: 15.5px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.4s var(--easing);
  cursor: pointer;
  border-radius: 0;
}
.part-btn svg { width: 18px; height: 18px; transition: transform 0.3s var(--easing); }
.part-btn:hover svg { transform: translateX(5px); }
.part-btn--primary {
  background: var(--c-marker);
  color: var(--c-ink);
}
.part-btn--primary:hover {
  background: #FAF6EE;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.3);
}
.part-btn--ghost {
  background: transparent;
  color: #FAF6EE;
  border-color: rgba(250, 246, 238, 0.4);
}
.part-btn--ghost:hover {
  border-color: var(--c-marker);
  color: var(--c-marker);
  background: rgba(248, 122, 2, 0.06);
}

/* Ribbon stats */
.part-ribbon {
  position: relative;
  z-index: 2;
  background: var(--c-ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--c-marker);
}
.part-ribbon__item {
  padding: 32px 24px;
  text-align: center;
  border-right: 1px solid rgba(250, 246, 238, 0.08);
}
.part-ribbon__item:last-child { border-right: none; }
.part-ribbon__n {
  display: block;
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 96;
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--c-marker);
  margin-bottom: 8px;
}
.part-ribbon__l {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(250, 246, 238, 0.65);
}

/* ============================================================
   FILET ROMAIN — séparateur de chapitre
   ============================================================ */
.part-rule {
  background: var(--c-paper);
  padding: 36px 0;
  text-align: center;
  border-bottom: 1px solid var(--c-rule);
}
.part-rule__inner {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-ink-soft);
}
.part-rule__no {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: 20px;
  color: var(--c-marker);
  letter-spacing: -0.02em;
  margin-right: 6px;
}
.part-rule__inner::before, .part-rule__inner::after {
  content: '';
  width: 64px;
  height: 1px;
  background: var(--c-rule);
}

/* ============================================================
   MANIFESTE — 2 colonnes éditoriales
   ============================================================ */
.part-manifesto {
  background: var(--c-paper);
  padding: 120px 0 140px;
  position: relative;
  overflow: hidden;
}
.part-manifesto::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: 1px;
  height: 64px;
  background: var(--c-marker);
  opacity: 0.6;
}
.part-manifesto__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-manifesto__head {
  max-width: 760px;
  margin: 80px auto 80px;
  text-align: center;
}
.part-manifesto__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin-bottom: 24px;
}
.part-manifesto__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.6rem, 6vw, 5rem);
  letter-spacing: -0.028em;
  line-height: 0.98;
  color: var(--c-ink);
}
.part-manifesto__title em { color: var(--c-marker); font-weight: 300; }

.part-manifesto__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--c-rule);
}
.part-manifesto__col {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  line-height: 1.75;
  color: var(--c-ink-soft);
  max-width: 50ch;
}
.part-manifesto__col p { margin: 0 0 18px; }
.part-manifesto__col em { color: var(--c-ink); font-weight: 400; }
.part-manifesto__col strong { color: var(--c-ink); font-weight: 500; }
.part-manifesto__lede {
  font-variation-settings: "opsz" 96;
  font-size: clamp(1.3rem, 1.7vw, 1.6rem);
  line-height: 1.5;
  color: var(--c-ink);
}

/* ============================================================
   VIDÉO — section avec cadre architecte
   ============================================================ */
.part-video {
  background: var(--c-paper);
  padding: 100px 0 140px;
  border-top: 1px solid var(--c-rule);
}
.part-video__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-video__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}
.part-video__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin-bottom: 24px;
}
.part-video__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--c-ink);
  margin-bottom: 22px;
}
.part-video__title em { color: var(--c-marker); font-weight: 300; }
.part-video__lede {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.3vw, 1.25rem);
  line-height: 1.7;
  color: var(--c-ink-soft);
  max-width: 56ch;
  margin: 0 auto;
}
.part-video__wrap {
  position: relative;
  padding: 24px;
  background: var(--c-ink);
  box-shadow: 0 30px 60px -25px rgba(10, 24, 40, 0.28);
}
.part-video__wrap video {
  width: 100%;
  height: auto;
  display: block;
}
.part-video__corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--c-marker);
  z-index: 3;
}
.part-video__corner--tl { top: 8px; left: 8px; border-top: 1px solid var(--c-marker); border-left: 1px solid var(--c-marker); }
.part-video__corner--tr { top: 8px; right: 8px; border-top: 1px solid var(--c-marker); border-right: 1px solid var(--c-marker); }
.part-video__corner--bl { bottom: 8px; left: 8px; border-bottom: 1px solid var(--c-marker); border-left: 1px solid var(--c-marker); }
.part-video__corner--br { bottom: 8px; right: 8px; border-bottom: 1px solid var(--c-marker); border-right: 1px solid var(--c-marker); }

.part-video__logo {
  position: absolute;
  bottom: 36px;
  right: 36px;
  width: clamp(60px, 9vw, 96px);
  height: auto;
  z-index: 2;
  pointer-events: none;
  opacity: 0.95;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.45));
  transition: opacity 0.3s ease;
}
.part-video__wrap:hover .part-video__logo { opacity: 1; }
@media (max-width: 600px) {
  .part-video__logo { bottom: 22px; right: 22px; width: 52px; }
}

/* ============================================================
   BÉNÉFICES — 4 piliers, chiffres XXL
   ============================================================ */
.part-benefits {
  background: var(--c-ink);
  color: #FAF6EE;
  padding: 140px 0 160px;
  position: relative;
  overflow: hidden;
}
.part-benefits::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(248, 122, 2, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 12% 88%, rgba(20, 83, 154, 0.30) 0%, transparent 50%);
  pointer-events: none;
}
.part-benefits__inner {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-benefits__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 100px;
}
.part-benefits__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin-bottom: 24px;
}
.part-benefits__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.6rem, 6vw, 5rem);
  letter-spacing: -0.028em;
  line-height: 0.98;
  color: #FAF6EE;
  margin-bottom: 28px;
}
.part-benefits__title em { color: var(--c-marker); font-weight: 300; }
.part-benefits__lede {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  line-height: 1.6;
  color: rgba(250, 246, 238, 0.72);
}

.part-benefits__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid rgba(250, 246, 238, 0.10);
  border-bottom: 1px solid rgba(250, 246, 238, 0.10);
}
.part-benefit {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  padding: 56px 36px;
  border-right: 1px solid rgba(250, 246, 238, 0.10);
  border-bottom: 1px solid rgba(250, 246, 238, 0.10);
  position: relative;
  transition: background 0.4s var(--easing);
}
.part-benefit:nth-child(2n) { border-right: none; }
.part-benefit:nth-last-child(-n+2) { border-bottom: none; }
.part-benefit:hover {
  background: rgba(248, 122, 2, 0.04);
}
.part-benefit__num {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(3.5rem, 7vw, 6rem);
  line-height: 0.85;
  color: var(--c-marker);
  letter-spacing: -0.06em;
  opacity: 0.92;
  transition: opacity 0.3s ease;
}
.part-benefit:hover .part-benefit__num { opacity: 1; }
.part-benefit__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin-bottom: 14px;
}
.part-benefit__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-variation-settings: "opsz" 60;
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: #FAF6EE;
  margin-bottom: 18px;
}
.part-benefit__text {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  line-height: 1.75;
  color: rgba(250, 246, 238, 0.78);
}
.part-benefit__text em { color: var(--c-marker); font-weight: 400; }
.part-benefit__text strong { color: var(--c-marker); font-weight: 500; font-style: italic; }

/* ============================================================
   PLATE — figure éditoriale
   ============================================================ */
.part-plate {
  position: relative;
  background: var(--c-ink);
  padding: clamp(28px, 5vw, 56px) clamp(28px, 5vw, 56px) clamp(36px, 5vw, 64px);
  overflow: hidden;
}
.part-plate__media {
  position: relative;
  overflow: hidden;
}
.part-plate__img {
  width: 100%;
  height: clamp(420px, 72vh, 820px);
  object-fit: cover;
  display: block;
  filter: brightness(0.96) saturate(0.96);
  transition: transform 1.4s var(--easing);
}
.part-plate:hover .part-plate__img { transform: scale(1.03); }
.part-plate__corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: var(--c-marker);
  z-index: 2;
}
.part-plate__corner--tl { top: clamp(16px, 2.5vw, 28px); left: clamp(16px, 2.5vw, 28px); border-top: 1px solid var(--c-marker); border-left: 1px solid var(--c-marker); }
.part-plate__corner--tr { top: clamp(16px, 2.5vw, 28px); right: clamp(16px, 2.5vw, 28px); border-top: 1px solid var(--c-marker); border-right: 1px solid var(--c-marker); }
.part-plate__corner--bl { bottom: clamp(80px, 9vw, 120px); left: clamp(16px, 2.5vw, 28px); border-bottom: 1px solid var(--c-marker); border-left: 1px solid var(--c-marker); }
.part-plate__corner--br { bottom: clamp(80px, 9vw, 120px); right: clamp(16px, 2.5vw, 28px); border-bottom: 1px solid var(--c-marker); border-right: 1px solid var(--c-marker); }
.part-plate__no {
  position: absolute;
  top: clamp(20px, 3vw, 36px);
  right: clamp(52px, 6vw, 76px);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  z-index: 3;
  padding: 6px 10px;
  background: rgba(10, 24, 40, 0.65);
  backdrop-filter: blur(4px);
}
/* Logo watermark plaque photo */
.part-plate__logo {
  position: absolute;
  bottom: clamp(20px, 2.5vw, 32px);
  right: clamp(20px, 2.5vw, 32px);
  width: clamp(64px, 8vw, 110px);
  height: auto;
  z-index: 3;
  pointer-events: none;
  opacity: 0.95;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.45));
}
@media (max-width: 720px) {
  .part-plate__logo { width: 56px; }
}

.part-plate__caption {
  position: relative;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(250, 246, 238, 0.15);
  color: #FAF6EE;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}
.part-plate__cap-l {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(0.95rem, 1.2vw, 1.15rem);
  line-height: 1.55;
  max-width: 52ch;
}
.part-plate__cap-l strong {
  font-weight: 500;
  color: var(--c-marker);
  font-style: italic;
}
.part-plate__cap-r {
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(250, 246, 238, 0.55);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ============================================================
   MÉTHODE — Timeline 3 temps
   ============================================================ */
.part-method {
  background: var(--c-paper);
  padding: 140px 0;
}
.part-method__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-method__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 100px;
}
.part-method__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin-bottom: 24px;
}
.part-method__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--c-ink);
  margin-bottom: 24px;
}
.part-method__title em { color: var(--c-marker); font-weight: 300; }
.part-method__lede {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  line-height: 1.7;
  color: var(--c-ink-soft);
}

.part-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}
/* Ligne pointillée connectrice */
.part-steps::before {
  content: '';
  position: absolute;
  top: 38px;
  left: 16%;
  right: 16%;
  height: 1px;
  border-top: 1px dashed var(--c-marker);
  opacity: 0.4;
}
.part-step {
  padding: 0 28px;
  position: relative;
}
.part-step__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 32px;
  position: relative;
}
.part-step__head::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: var(--c-paper);
  border: 2px solid var(--c-marker);
  border-radius: 50%;
  z-index: 2;
}
.part-step__no {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.8rem, 4.2vw, 3.6rem);
  line-height: 0.9;
  color: var(--c-marker);
  letter-spacing: -0.04em;
}
.part-step__lbl {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  opacity: 0.65;
}
.part-step__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-variation-settings: "opsz" 60;
  font-size: clamp(1.3rem, 1.7vw, 1.5rem);
  letter-spacing: -0.012em;
  color: var(--c-ink);
  margin: 0 0 14px;
}
.part-step__text {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(0.98rem, 1.15vw, 1.1rem);
  line-height: 1.75;
  color: var(--c-ink-soft);
}
.part-step__text strong { color: var(--c-ink); font-weight: 500; }

/* ============================================================
   PULL QUOTE
   ============================================================ */
.part-quote {
  background: var(--c-ink);
  color: #FAF6EE;
  padding: 130px 0 140px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.part-quote::before,
.part-quote::after {
  content: '';
  position: absolute;
  left: 50%;
  width: 1px;
  height: 44px;
  background: var(--c-marker);
  opacity: 0.6;
}
.part-quote::before { top: 0; }
.part-quote::after { bottom: 0; }
.part-quote__inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-quote__open {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-size: clamp(4rem, 9vw, 9rem);
  line-height: 0.4;
  color: var(--c-marker);
  margin-bottom: 24px;
}
.part-quote__text {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "opsz" 96;
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  line-height: 1.3;
  color: #FAF6EE;
  letter-spacing: -0.012em;
}
.part-quote__text em {
  color: var(--c-marker);
  font-weight: 400;
}
.part-quote__sig {
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(250, 246, 238, 0.55);
}

/* ============================================================
   CTA finale
   ============================================================ */
.part-cta {
  background: var(--c-paper);
  padding: 140px 0 120px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.part-cta::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: 1px;
  height: 64px;
  background: var(--c-marker);
}

/* Cachet officiel SVG en arrière-plan */
.part-cta__seal {
  position: absolute;
  top: 50%;
  right: 6%;
  transform: translateY(-50%) rotate(-6deg);
  width: 320px;
  height: 320px;
  opacity: 0.5;
  pointer-events: none;
  animation: sealSpin 90s linear infinite;
}
.part-cta__seal svg { width: 100%; height: 100%; }
@keyframes sealSpin {
  to { transform: translateY(-50%) rotate(354deg); }
}

.part-cta__inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 56px);
}
.part-cta__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-marker);
  margin: 60px 0 32px;
}
.part-cta__title {
  font-family: var(--display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: "opsz" 144;
  font-size: clamp(2.6rem, 6vw, 5rem);
  letter-spacing: -0.028em;
  line-height: 0.98;
  color: var(--c-ink);
  margin-bottom: 28px;
}
.part-cta__title em { color: var(--c-marker); font-weight: 300; }
.part-cta__lede {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.1rem, 1.4vw, 1.3rem);
  line-height: 1.6;
  color: var(--c-ink-soft);
  margin-bottom: 56px;
}
.part-cta__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.part-cta .part-btn--ghost {
  color: var(--c-ink);
  border-color: rgba(10, 24, 40, 0.25);
}
.part-cta .part-btn--ghost:hover {
  color: var(--c-marker);
  border-color: var(--c-marker);
  background: rgba(248, 122, 2, 0.06);
}
.part-cta__contact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  text-align: left;
  border-top: 1px solid var(--c-rule);
  padding-top: 40px;
  position: relative;
  z-index: 2;
}
.part-cta__lbl {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
  opacity: 0.65;
  margin-bottom: 10px;
}
.part-cta__val {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-variation-settings: "opsz" 60;
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  line-height: 1.45;
  color: var(--c-ink);
  text-decoration: none;
  transition: color 0.3s ease;
}
.part-cta__val:hover { color: var(--c-marker); }
.part-cta__val--static { cursor: default; }
.part-cta__val--static:hover { color: var(--c-ink); }
.part-cta__sig {
  margin-top: 64px;
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: 14px;
  color: rgba(10, 24, 40, 0.55);
  position: relative;
  z-index: 2;
}
.part-cta__sig strong { color: var(--c-marker); font-weight: 400; }

/* ============================================================
   Reveals
   ============================================================ */
.part .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--easing), transform 0.9s var(--easing);
}
.part .reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.part .reveal--d1 { transition-delay: 0.12s; }
.part .reveal--d2 { transition-delay: 0.24s; }
.part .reveal--d3 { transition-delay: 0.36s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .part-hero__inner { grid-template-columns: 1fr; gap: 36px; }
  .part-hero__col-r { justify-content: flex-start; }
  .part-hero__sidemark { text-align: left; align-items: flex-start; max-width: 100%; }
  .part-manifesto__grid { grid-template-columns: 1fr; gap: 36px; }
  .part-benefits__grid { grid-template-columns: 1fr; }
  .part-benefit { border-right: none; }
  .part-benefit:nth-child(2n) { border-right: none; }
  .part-benefit:last-child { border-bottom: none; }
  .part-steps { grid-template-columns: 1fr; gap: 48px; }
  .part-steps::before { display: none; }
  .part-step__head::before { display: none; }
  .part-cta__contact { grid-template-columns: 1fr; gap: 24px; }
  .part-cta__seal { display: none; }
}
@media (max-width: 720px) {
  .part-hero { min-height: 90vh; padding-top: 100px; }
  .part-hero__chrono {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    font-size: 10px;
  }
  .part-hero__chrono .l::before { display: none; }
  .part-hero__inner { padding-top: 60px; padding-bottom: 60px; }
  .part-ribbon { grid-template-columns: repeat(2, 1fr); }
  .part-ribbon__item:nth-child(2) { border-right: none; }
  .part-ribbon__item:nth-child(1),
  .part-ribbon__item:nth-child(2) {
    border-bottom: 1px solid rgba(250, 246, 238, 0.08);
  }
  .part-video { padding: 80px 0; }
  .part-manifesto { padding: 80px 0; }
  .part-benefits { padding: 80px 0; }
  .part-method { padding: 80px 0; }
  .part-quote { padding: 80px 0; }
  .part-cta { padding: 80px 0; }
  .part-plate__caption { flex-direction: column; align-items: flex-start; gap: 12px; }
}