/* ================================================================
   Planethik Concept — site vitrine
   Direction : épuré lumineux (thème clair), typographie oversized,
   sphères en dégradés jaune / bleu / vert, parallax.
   ================================================================ */

:root {
  --ivory: #fafaf6;
  --ivory-deep: #f1f3ec;
  --sky: #edf3fb;
  --sky-deep: #e4edf9;
  --ink: #14161a;
  --ink-soft: #4e555e;
  --sun: #f2a900;
  --sun-deep: #b97e00;
  --leaf: #1fa564;
  --sea: #2f6df6;
  --font-display: "Archivo", "Helvetica Neue", sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-display);
  background: var(--ivory);
  color: var(--ink);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--sea); color: #fff; }

em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.005em;
}

/* dégradé signature jaune → vert → bleu pour les mots en italique */
.grad,
.hero-title em,
.section-title em,
.contact-title em {
  background: linear-gradient(100deg, #dd9c00 5%, #1fa564 52%, #2f6df6 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out),
    background 0.3s, color 0.3s;
}
.btn:hover { transform: translateY(-2px); }
.btn-dark {
  background: var(--ink);
  color: var(--ivory);
}
.btn-dark:hover { box-shadow: 0 18px 40px -18px rgba(20, 22, 26, 0.55); }
.btn-ghost {
  color: var(--ink);
  border: 1px solid rgba(20, 22, 26, 0.25);
}
.btn-ghost:hover { border-color: var(--ink); }

/* ---------- Étiquettes ---------- */
.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--sea);
}
.eyebrow-light { color: var(--leaf); }

.section-title {
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-top: 1.2rem;
}

/* ---------- Révélations au scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.12s; }
.reveal.d2 { transition-delay: 0.24s; }
.reveal.d3 { transition-delay: 0.36s; }
.reveal.d4 { transition-delay: 0.5s; }

/* ================================================================
   NAVIGATION
   ================================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.4s, box-shadow 0.4s, backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(250, 250, 246, 0.8);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(20, 22, 26, 0.06);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nav-logo {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.nav-logo span { color: var(--sea); }
.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.3s;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ivory);
  background: var(--ink);
  padding: 0.6rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.3s;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--sea); }

/* ================================================================
   SPHÈRES (rendu 3D en dégradés radiaux — jaune, bleu, vert)
   ================================================================ */
.sphere,
.planet,
.sun-core,
.card-orb,
.contact-sphere,
.point-orb {
  border-radius: 50%;
}

.sphere-wrap { position: absolute; will-change: translate; }
.wrap-hero {
  width: clamp(340px, 46vw, 680px);
  height: clamp(340px, 46vw, 680px);
  right: -8%;
  top: 12%;
}
.wrap-sat {
  width: clamp(90px, 11vw, 160px);
  height: clamp(90px, 11vw, 160px);
  right: 40%;
  top: 8%;
}
.wrap-dot {
  width: clamp(34px, 4vw, 56px);
  height: clamp(34px, 4vw, 56px);
  right: 26%;
  bottom: 14%;
}
.sphere { width: 100%; height: 100%; }

.sphere-hero {
  background:
    radial-gradient(circle at 32% 26%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0) 40%),
    radial-gradient(circle at 30% 30%, #fff6c9 0%, #ffd23e 40%, #f09e00 66%, #6e4600 100%);
  box-shadow:
    inset -40px -60px 120px rgba(80, 50, 0, 0.45),
    0 60px 160px -40px rgba(240, 165, 20, 0.45);
  animation: float 9s ease-in-out infinite;
}
.sphere-hero-sat {
  background:
    radial-gradient(circle at 32% 26%, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0) 42%),
    radial-gradient(circle at 30% 30%, #d6f7dd 0%, #34c47c 45%, #0e7a45 75%, #05341d 100%);
  box-shadow:
    inset -12px -18px 40px rgba(2, 42, 22, 0.55),
    0 30px 80px -24px rgba(30, 160, 95, 0.4);
  animation: float 7s ease-in-out infinite 0.8s;
}
.sphere-hero-dot {
  background:
    radial-gradient(circle at 32% 26%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0) 45%),
    radial-gradient(circle at 30% 30%, #d6e4ff 0%, #3b82f6 50%, #1e40af 80%, #0a1c50 100%);
  box-shadow: inset -6px -8px 18px rgba(6, 15, 60, 0.6);
  animation: float 6s ease-in-out infinite 1.6s;
}

@keyframes float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -22px; }
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 6rem;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 85% 15%, rgba(240, 170, 20, 0.1), transparent 60%),
    radial-gradient(900px 500px at 10% 90%, rgba(47, 109, 246, 0.06), transparent 60%),
    var(--ivory);
}
.hero-spheres {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero-title {
  font-size: clamp(3.2rem, 9.5vw, 8.6rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.045em;
  margin-top: 1.6rem;
}
.hero-sub {
  max-width: 34rem;
  margin-top: 2.2rem;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink-soft);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.6rem;
}
.hero-scroll {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 44px;
  border: 1.5px solid rgba(20, 22, 26, 0.3);
  border-radius: 999px;
}
.hero-scroll span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 999px;
  background: var(--ink);
  animation: scrollhint 1.8s ease-in-out infinite;
}
@keyframes scrollhint {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ================================================================
   MANIFESTO — mots révélés au scroll
   ================================================================ */
.manifesto {
  padding: 12rem 2rem;
  background: var(--ivory-deep);
}
.manifesto-text {
  max-width: 900px;
  margin: 0 auto;
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
}
.manifesto-text .w {
  opacity: 0.14;
  transition: opacity 0.35s ease-out;
}
.manifesto-text .w.on { opacity: 1; }

/* ================================================================
   UNIVERS — système solaire des projets (ciel clair)
   ================================================================ */
.universe {
  position: relative;
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky-deep) 100%);
  color: var(--ink);
  padding: 9rem 2rem 8rem;
  overflow: hidden;
}
.stars {
  position: absolute;
  inset: -20%;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 30%, rgba(47, 90, 170, 0.35), transparent 100%),
    radial-gradient(1px 1px at 28% 72%, rgba(47, 90, 170, 0.25), transparent 100%),
    radial-gradient(2px 2px at 45% 15%, rgba(47, 90, 170, 0.3), transparent 100%),
    radial-gradient(1px 1px at 61% 55%, rgba(47, 90, 170, 0.22), transparent 100%),
    radial-gradient(1.5px 1.5px at 74% 25%, rgba(47, 90, 170, 0.32), transparent 100%),
    radial-gradient(1px 1px at 86% 68%, rgba(47, 90, 170, 0.25), transparent 100%),
    radial-gradient(1.5px 1.5px at 35% 88%, rgba(47, 90, 170, 0.28), transparent 100%),
    radial-gradient(1px 1px at 92% 40%, rgba(47, 90, 170, 0.2), transparent 100%),
    radial-gradient(1.2px 1.2px at 8% 62%, rgba(47, 90, 170, 0.25), transparent 100%),
    radial-gradient(1px 1px at 55% 78%, rgba(47, 90, 170, 0.2), transparent 100%);
  animation: twinkle 8s ease-in-out infinite alternate;
}
@keyframes twinkle {
  from { opacity: 0.55; }
  to { opacity: 1; }
}
.universe-head {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.universe-sub {
  max-width: 34rem;
  margin: 1.8rem auto 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

/* --- le système --- */
.solar {
  position: relative;
  width: min(88vw, 860px);
  aspect-ratio: 1;
  margin: 5rem auto 0;
}
.sun {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  display: grid;
  place-items: center;
}
.sun-core {
  width: clamp(110px, 17vw, 170px);
  height: clamp(110px, 17vw, 170px);
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0) 45%),
    radial-gradient(circle at 30% 30%, #fffbe0 0%, #ffd93d 38%, #f5a300 68%, #a86400 100%);
  box-shadow:
    0 0 60px rgba(255, 200, 60, 0.55),
    0 0 160px rgba(255, 180, 30, 0.3),
    inset -14px -20px 50px rgba(130, 75, 0, 0.4);
  animation: sunpulse 5s ease-in-out infinite;
}
@keyframes sunpulse {
  0%, 100% { box-shadow: 0 0 60px rgba(255,200,60,0.55), 0 0 160px rgba(255,180,30,0.3), inset -14px -20px 50px rgba(130,75,0,0.4); }
  50% { box-shadow: 0 0 90px rgba(255,200,60,0.75), 0 0 220px rgba(255,180,30,0.45), inset -14px -20px 50px rgba(130,75,0,0.4); }
}
.sun-label {
  position: absolute;
  text-align: center;
  font-size: clamp(0.72rem, 1.4vw, 0.95rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #4a3000;
}

.orbit {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(30, 60, 120, 0.14);
  border-radius: 50%;
}
.orbit-1 { width: 34%; height: 34%; animation: spin 26s linear infinite; }
.orbit-2 { width: 52%; height: 52%; animation: spin 40s linear infinite reverse; }
.orbit-3 { width: 68%; height: 68%; animation: spin 56s linear infinite; }
.orbit-4 { width: 84%; height: 84%; animation: spin 74s linear infinite reverse; }
.orbit-5 { width: 100%; height: 100%; animation: spin 92s linear infinite; }

@keyframes spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbiter {
  position: absolute;
  top: 0; left: 50%;
  display: grid;
  place-items: center;
  gap: 0.5rem;
}
/* contre-rotation pour garder planètes et étiquettes droites */
.orbit-1 .orbiter { animation: counterspin 26s linear infinite; }
.orbit-2 .orbiter { animation: counterspin 40s linear infinite reverse; }
.orbit-3 .orbiter { animation: counterspin 56s linear infinite; }
.orbit-4 .orbiter { animation: counterspin 74s linear infinite reverse; }
.orbit-5 .orbiter { animation: counterspin 92s linear infinite; }

@keyframes counterspin {
  from { transform: translate(-50%, -50%) rotate(360deg); }
  to { transform: translate(-50%, -50%) rotate(0deg); }
}

.planet {
  box-shadow: inset -8px -12px 26px rgba(10, 20, 10, 0.45);
}
.planet-a {
  width: clamp(34px, 5vw, 52px); height: clamp(34px, 5vw, 52px);
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%),
    radial-gradient(circle at 30% 30%, #fff0b3 0%, #ffc23d 48%, #7c5000 100%);
}
.planet-b {
  width: clamp(26px, 3.6vw, 38px); height: clamp(26px, 3.6vw, 38px);
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.85), rgba(255,255,255,0) 42%),
    radial-gradient(circle at 30% 30%, #d6e4ff 0%, #3b82f6 50%, #0f2a66 100%);
}
.planet-c {
  width: clamp(20px, 2.8vw, 30px); height: clamp(20px, 2.8vw, 30px);
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.85), rgba(255,255,255,0) 45%),
    radial-gradient(circle at 30% 30%, #c9f2d9 0%, #2fbf6b 50%, #06401f 100%);
}
.planet-d {
  width: clamp(40px, 6vw, 62px); height: clamp(40px, 6vw, 62px);
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.85), rgba(255,255,255,0) 40%),
    radial-gradient(circle at 30% 30%, #c9f3f0 0%, #14b8a6 48%, #064e45 100%);
}
.planet-e {
  width: clamp(30px, 4.4vw, 46px); height: clamp(30px, 4.4vw, 46px);
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%),
    radial-gradient(circle at 30% 30%, #dbf1ff 0%, #38bdf8 48%, #0b3a5e 100%);
}

.planet-label {
  font-size: clamp(0.62rem, 1.1vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.78);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(30, 60, 120, 0.12);
}

.universe-note {
  position: relative;
  z-index: 2;
  text-align: center;
  margin-top: 4.5rem;
  color: var(--ink-soft);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
}

/* ================================================================
   MÉTHODE
   ================================================================ */
.method {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10rem 2rem;
}
.method-steps {
  list-style: none;
  margin-top: 5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}
.step-num {
  display: block;
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(160deg, rgba(20, 22, 26, 0.16), rgba(20, 22, 26, 0.05));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.step-body h3 {
  margin-top: 1.4rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.step-body p {
  margin-top: 0.9rem;
  color: var(--ink-soft);
  font-size: 1rem;
}

/* ================================================================
   IMPACT BY DESIGN
   ================================================================ */
.impact {
  background:
    radial-gradient(900px 480px at 15% 20%, rgba(31, 165, 100, 0.07), transparent 60%),
    radial-gradient(900px 480px at 90% 85%, rgba(47, 109, 246, 0.06), transparent 60%),
    var(--ivory-deep);
  padding: 10rem 2rem;
}
.impact-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.impact-lead {
  max-width: 42rem;
  margin-top: 2.2rem;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  color: var(--ink-soft);
}
.impact-points {
  margin-top: 4.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.point-orb {
  width: 34px;
  height: 34px;
  box-shadow: inset -5px -7px 14px rgba(0, 0, 0, 0.35);
}
.point-orb.po-sun { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #fff0b3, #ffc23d 50%, #7c5000); }
.point-orb.po-leaf { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #c9f2d9, #2fbf6b 50%, #06401f); }
.point-orb.po-sea { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #d6e4ff, #3b82f6 50%, #0f2a66); }
.point h3 {
  margin-top: 1.2rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.point p {
  margin-top: 0.6rem;
  font-size: 0.96rem;
  color: var(--ink-soft);
}

/* ================================================================
   SERVICES
   ================================================================ */
.services {
  background: var(--ivory);
  padding: 10rem 2rem;
}
.services-head {
  max-width: 1200px;
  margin: 0 auto;
}
.services-grid {
  max-width: 1200px;
  margin: 4.5rem auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.card {
  background: #ffffff;
  border: 1px solid rgba(20, 22, 26, 0.07);
  border-radius: 24px;
  padding: 2.2rem 2rem 2.4rem;
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px -30px rgba(20, 22, 26, 0.25);
}
.card h3 {
  margin-top: 1.6rem;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.card p {
  margin-top: 0.7rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.card-orb {
  width: 46px;
  height: 46px;
  box-shadow: inset -6px -9px 18px rgba(0, 0, 0, 0.3);
  transition: transform 0.5s var(--ease-out);
}
.card:hover .card-orb { transform: scale(1.15) translateY(-2px); }
.orb-1 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #fff6c9, #ffd23e 50%, #7c5000); }
.orb-2 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #d6e4ff, #3b82f6 50%, #0f2a66); }
.orb-3 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #c9f2d9, #2fbf6b 50%, #06401f); }
.orb-4 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #c9f3f0, #14b8a6 50%, #064e45); }
.orb-5 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #dbf1ff, #38bdf8 50%, #0b3a5e); }
.orb-6 { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #eef9c9, #84cc16 50%, #3f6212); }

/* ================================================================
   À PROPOS
   ================================================================ */
.about {
  background:
    radial-gradient(900px 500px at 85% 15%, rgba(240, 170, 20, 0.07), transparent 60%),
    var(--ivory-deep);
  padding: 10rem 2rem;
}
.about-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4.5rem;
  align-items: start;
}
.about-text p {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
}
.about-text p + p { margin-top: 1.4rem; }
.about-text strong { color: var(--ink); font-weight: 700; }
.about-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 2.4rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid rgba(20, 22, 26, 0.1);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
}
.chip-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: inset -2px -3px 6px rgba(0, 0, 0, 0.35);
}
.chip-dot.po-sun { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #fff0b3, #ffc23d 50%, #7c5000); }
.chip-dot.po-leaf { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #c9f2d9, #2fbf6b 50%, #06401f); }
.chip-dot.po-sea { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #d6e4ff, #3b82f6 50%, #0f2a66); }
.chip-dot.po-teal { background: radial-gradient(circle at 32% 26%, rgba(255,255,255,0.9), rgba(255,255,255,0) 42%), radial-gradient(circle at 30% 30%, #c9f3f0, #14b8a6 50%, #064e45); }

@media (max-width: 900px) {
  .about { padding: 6rem 2rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ================================================================
   CONTACT — lever de soleil sur fond clair
   ================================================================ */
.contact {
  position: relative;
  background: linear-gradient(180deg, var(--ivory) 0%, #fdf2d2 100%);
  color: var(--ink);
  text-align: center;
  padding: 11rem 2rem 16rem;
  overflow: hidden;
}
.contact-sphere {
  position: absolute;
  width: clamp(420px, 60vw, 900px);
  height: clamp(420px, 60vw, 900px);
  left: 50%;
  /* seule une calotte de ~12rem émerge en bas : horizon lumineux */
  bottom: calc(12rem - clamp(420px, 60vw, 900px));
  transform: translateX(-50%);
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0) 34%),
    radial-gradient(circle at 50% 20%, #ffe98a 0%, #ffcb2e 34%, #ef9c00 58%, #8a5300 100%);
  box-shadow: 0 -30px 160px rgba(250, 180, 40, 0.45);
  filter: saturate(1.05);
}
.contact-title {
  position: relative;
  z-index: 2;
  font-size: clamp(2.8rem, 7.5vw, 6.4rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.04em;
}
.contact-sub {
  position: relative;
  z-index: 2;
  max-width: 30rem;
  margin: 1.8rem auto 2.8rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
}
.contact .btn { position: relative; z-index: 2; }
.contact .btn-dark:hover { box-shadow: 0 18px 50px -14px rgba(240, 165, 20, 0.6); }

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  background: var(--ivory);
  color: var(--ink-soft);
  text-align: center;
  font-size: 0.85rem;
  padding: 2.4rem 2rem 3rem;
  border-top: 1px solid rgba(20, 22, 26, 0.08);
}
.footer p + p { margin-top: 0.3rem; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 900px) {
  .method-steps,
  .services-grid,
  .impact-points { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .wrap-hero { right: -35%; top: 4%; opacity: 0.85; }
  .wrap-sat { right: 10%; top: 3%; }
  .planet-label { display: none; }
  .manifesto { padding: 7rem 1.5rem; }
  .method, .services, .impact, .contact { padding-top: 6rem; padding-bottom: 6rem; }
  .contact { padding-bottom: 14rem; }
}

/* ================================================================
   ACCESSIBILITÉ — mouvement réduit
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .manifesto-text .w { opacity: 1; }
}