/* =========================================================
   ARC INTERFACE — Landing page
   ========================================================= */

:root {
  --color-bg-dark: #0E1418;
  --color-bg-deep: #0A1015;
  --color-bg-card: #14202A;
  --color-bg-light: #FFFFFF;
  --color-bg-soft: #F4F5F6;
  --color-bg-cool: #EDEFF1;

  --color-text: #14202A;
  --color-text-muted: #6B7682;
  --color-text-soft: #B5BEC3;
  --color-text-invert: #FFFFFF;

  --color-accent: #2E938A;
  --color-accent-bright: #3FB1A6;
  --color-accent-soft: #76C9C0;

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(20, 32, 42, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-xl: 28px;

  --shadow-card: 0 12px 30px -12px rgba(10, 16, 21, 0.18);
  --shadow-glow: 0 22px 60px -22px rgba(46, 147, 138, 0.55);

  --max: 1200px;
  --gutter: clamp(20px, 4vw, 56px);

  --font-sans: 'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ========== Reset / base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }

[hidden] { display: none !important; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ========== Common bits ========== */
.text-primary { color: var(--color-accent) !important; }
.eyebrow {
  display: inline-block;
  font-size: 1.28rem;          /* +70% */
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 15px;
  line-height: 1.2;
}
.eyebrow--light { color: var(--color-accent-soft); }

.section-title {
  font-size: clamp(1.85rem, 3.8vw, 2.65rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 22px;
}
.section-title--light { color: var(--color-text-invert); }

.section-text {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 56ch;
}
.section-text--light { color: rgba(255,255,255,0.78); }
.section-text--strong { color: var(--color-text); font-weight: 600; }
.section-text--bold {
  color: var(--color-text);
  font-weight: 700;
  margin-top: 8px;
}

.section { padding: clamp(72px, 9vw, 130px) 0; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  white-space: nowrap;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { background: var(--color-accent-bright); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(20, 32, 42, 0.18);
}
.btn-outline:hover { background: var(--color-text); color: #fff; }

/* ========== Header ========== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: transparent;
  transition: background-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(14, 20, 24, 0.85);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.brand img {
  height: 72px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.main-nav a {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.78);
  position: relative;
  padding: 6px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 -2px 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { transform: scaleX(1); }

.header-cta { padding: 11px 22px; font-size: 0.7rem; }

/* ========== Language switch ========== */
.lang-switch {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 3px;
  gap: 0;
  flex-shrink: 0;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.site-header.is-scrolled .lang-switch {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.10);
}
.lang-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 6px 11px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  font-family: inherit;
}
.lang-btn:hover { color: #fff; }
.lang-btn:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 2px rgba(63, 177, 166, 0.55);
}
.lang-btn.is-active {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 12px -4px rgba(46, 147, 138, 0.55);
}
.lang-btn.is-active:hover { background: var(--color-accent-bright); }

.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 8px;
  position: relative;
  margin-left: auto;
}
.menu-toggle span {
  position: absolute;
  left: 10px; right: 10px;
  height: 2px;
  background: #fff;
  transition: transform 0.3s var(--ease), top 0.3s var(--ease), opacity 0.2s;
}
.menu-toggle span:nth-child(1) { top: 13px; }
.menu-toggle span:nth-child(2) { top: 19px; }
.menu-toggle span:nth-child(3) { top: 25px; }
.menu-toggle.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px var(--gutter) 28px;
  background: rgba(14, 20, 24, 0.96);
  backdrop-filter: saturate(140%) blur(14px);
  border-top: 1px solid var(--color-border);
}
.mobile-nav a {
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.mobile-nav .btn { align-self: flex-start; }

/* ========== HERO ========== */
.hero {
  position: relative;
  color: #fff;
  overflow: hidden;
  padding-top: clamp(140px, 18vw, 200px);
  padding-bottom: clamp(110px, 14vw, 170px);
  min-height: clamp(640px, 96vh, 920px);
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.04);
  transition: transform 6s var(--ease);
}
.hero:hover .hero-bg img { transform: scale(1.08); }
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(115deg, rgba(8,12,16,0.88) 0%, rgba(10,16,21,0.78) 30%, rgba(10,16,21,0.45) 70%, rgba(10,16,21,0.55) 100%),
    radial-gradient(900px 500px at 80% 110%, rgba(46,147,138,0.18), transparent 60%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-content { position: relative; max-width: 640px; }
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  text-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.reveal-line { display: inline-block; overflow: hidden; position: relative; }

.hero-bar {
  display: block;
  width: 80px;
  height: 3px;
  background: var(--color-accent);
  margin: 8px 0 22px;
  border-radius: 3px;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left center;
  animation: barIn 0.7s var(--ease) 0.55s forwards;
}
@keyframes barIn { to { opacity: 1; transform: scaleX(1); } }

.hero-tagline {
  font-size: clamp(1.1rem, 1.7vw, 1.3rem);
  color: var(--color-accent-soft);
  font-style: italic;
  margin-bottom: 22px;
  font-weight: 500;
}
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 36px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.35);
}
.hero-cta { padding: 16px 32px; }

/* ========== VISION ========== */
.vision { background: #fff; }
.vision-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.vision-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.vision-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 1s var(--ease);
}
.vision-media:hover img { transform: scale(1.03); }

.bullets {
  margin: 16px 0 26px;
  display: grid;
  gap: 14px;
}
.bullets li {
  position: relative;
  padding-left: 38px;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}
.bullets .check {
  position: absolute;
  left: 0;
  top: 1px;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--color-accent);
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px -4px rgba(46,147,138,0.55);
}
.bullets .check svg { width: 14px; height: 14px; }

/* ========== APPROCHE ========== */
.approche { background: var(--color-bg-soft); }
.approche-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.approche-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-card);
}
.approche-media img {
  width: 100%;
  /* aspect-ratio: 5tain / 4; */
  object-fit: contain;
  background: #fff;
}

/* ========== ARC SLEEVE — DEEP DARK ========== */
.sleeve-deep {
  position: relative;
  color: #fff;
  background:
    radial-gradient(900px 500px at 100% 0%, rgba(46,147,138,0.20), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(63,177,166,0.10), transparent 60%),
    linear-gradient(180deg, #0A1217 0%, #0E1820 100%);
  overflow: hidden;
}
.sleeve-deep::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='6' height='6'><circle cx='1' cy='1' r='0.6' fill='%23ffffff' opacity='0.03'/></svg>");
  pointer-events: none;
}
.sleeve-inner { position: relative; }

.sleeve-grid {
  display: grid;
  grid-template-columns: 36% 1fr;
  gap: clamp(40px, 5vw, 36px);
  align-items: center;
}
.sleeve-product {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.sleeve-product img {
  width: 100%;
  /* aspect-ratio: 4 / 5; */
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.sleeve-text { max-width: 100%; }

.sleeve-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 30px;
}
.sleeve-col {
  /* background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border); */
  border-radius: var(--radius-md);
  padding: 14px 8px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.sleeve-col:hover {
  transform: translateY(-4px);
  border-color: rgba(63, 177, 166, 0.45);
  background: rgba(46, 147, 138, 0.06);
}
.col-icon {
  width: 60px; height: 60px;
  border-radius: 999px;
  display: grid; place-items: center;
  background: rgba(63, 177, 166, 0.12);
  color: var(--color-accent-bright);
  margin-bottom: 18px;
  border: 1px solid rgba(63,177,166,0.25);
}
.col-icon svg { width: 40px; height: 40px; }
.col-title {
  font-size: 1.1rem;
  margin-bottom: 14px;
  color: #fff;
  letter-spacing: 0.02em;
}
.col-list { display: grid; gap: 9px; }
.col-list li {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.74);
  position: relative;
  padding-left: 16px;
}
.col-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--color-accent-bright);
}

/* ========== ENVIRONMENTS ========== */
.environments { background: #fff; }
.env-header { text-align: center; max-width: 760px; margin: 0 auto clamp(36px, 5vw, 56px); }

.env-layout {
  display: grid;
  grid-template-columns: 34% 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.env-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: #0E1418;
}
.env-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.env-list {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.env-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-light);
}
.env-item:last-child { border-bottom: 0; padding-bottom: 0; }
.env-icon {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(46,147,138,0.10);
  color: var(--color-accent);
  display: grid;
  place-items: center;
}
.env-icon svg { width: 30px; height: 30px; }
.env-item h4 {
  font-size: 1.02rem;
  margin-bottom: 6px;
  color: var(--color-text);
  letter-spacing: -0.005em;
}
.env-item p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* ========== TESTIMONIAL STANDALONE ========== */
.testimonial-section {
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(46,147,138,0.08), transparent 70%),
    var(--color-bg-soft);
  padding: clamp(80px, 10vw, 140px) 0;
}
.testimonial-block {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.testimonial-quote-mark {
  display: inline-flex;
  color: var(--color-accent);
  margin-bottom: 28px;
  opacity: 0.9;
}
.testimonial-quote-mark svg {
  width: clamp(56px, 7vw, 80px);
  height: auto;
}
.testimonial-quote {
  margin: 0 0 26px;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.45;
  color: var(--color-text);
  font-style: italic;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.testimonial-author {
  font-size: 0.92rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ========== POINTS / POSITIONNEMENT ========== */
.points-section { background: #fff; }
.points-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(40px, 5vw, 70px);
  align-items: stretch;
}
.points-block { display: flex; flex-direction: column; }
.points-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px 30px;
  margin-top: 22px;
}
.point-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.point-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  color: var(--color-accent);
  transition: transform 0.35s var(--ease);
}
.point-item:hover .point-icon { transform: translateY(-3px) scale(1.04); }
.point-icon svg { width: 56px; height: 56px; }
.point-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  line-height: 1.3;
}

.positioning-card {
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}
.positioning-card .eyebrow { margin-bottom: 6px; }
.positioning-icon {
  width: 92px;
  height: 92px;
  color: var(--color-accent);
  display: block;
  align-self: flex-start;
  margin-bottom: 10px;
  margin-left: -15px;
}
.positioning-title {
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  letter-spacing: 0.02em;
  font-weight: 800;
  color: var(--color-text);
}
.positioning-card p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}
.positioning-card .btn { align-self: flex-start; margin-top: 6px; }

/* ========== FOOTER ========== */
.site-footer {
  position: relative;
  background: var(--color-bg-deep);
  color: #fff;
  overflow: hidden;
}
.footer-bg {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  pointer-events: none;
}
.footer-bg img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  filter: blur(2px) saturate(120%);
}
.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 60px);
  padding-top: clamp(70px, 8vw, 110px);
  padding-bottom: clamp(50px, 6vw, 80px);
}
.footer-col p {
  color: rgba(255,255,255,0.72);
  font-size: 0.96rem;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 38ch;
}
.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 4px 0 6px;
}
.footer-contacts a {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.25s var(--ease);
}
.footer-contacts a:hover { color: var(--color-accent-bright); }
.footer-icon {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.footer-icon svg { width: 18px; height: 18px; }
.footer-contacts a:hover .footer-icon {
  background: rgba(46,147,138,0.18);
  border-color: rgba(63,177,166,0.45);
  color: var(--color-accent-bright);
}

.footer-brandline {
  margin-top: 26px;
  font-weight: 800;
  letter-spacing: 0.18em;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}
.footer-col--cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.footer-col--cta h4 {
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  margin: 4px 0 12px;
  font-weight: 800;
}
.footer-col--cta .btn { align-self: flex-start; }

.patent-badge {
  position: relative;
  display: flex;
  align-items: center;
  gap: 26px;
  width: 100%;
  max-width: 460px;
  padding: 34px 36px;
  border: 1px solid rgba(63, 177, 166, 0.40);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(46, 147, 138, 0.18) 0%, rgba(14, 20, 24, 0.55) 60%, rgba(10, 16, 21, 0.6) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    0 24px 60px -22px rgba(46, 147, 138, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.patent-badge::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-bright), transparent);
  opacity: 0.9;
}
.patent-badge::after {
  content: "";
  position: absolute;
  inset: -40% -40% auto auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(63, 177, 166, 0.25), transparent 70%);
  pointer-events: none;
}
.patent-badge:hover {
  transform: translateY(-3px);
  border-color: rgba(63, 177, 166, 0.6);
  box-shadow:
    0 28px 70px -22px rgba(46, 147, 138, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.patent-icon {
  position: relative;
  z-index: 1;
  width: 92px;
  height: 92px;
  border-radius: 18px;
  background: rgba(46, 147, 138, 0.22);
  color: var(--color-accent-bright);
  display: grid;
  place-items: center;
  border: 1px solid rgba(63, 177, 166, 0.55);
  flex-shrink: 0;
  box-shadow: 0 10px 24px -10px rgba(46, 147, 138, 0.5);
}
.patent-icon svg { width: 52px; height: 52px; }

.patent-text {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.patent-title {
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  font-weight: 800;
  color: var(--color-accent-soft);
  text-transform: uppercase;
}
.patent-sub {
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
  margin-top: 8px;
  letter-spacing: 0.02em;
  line-height: 1;
}

.footer-bottom {
  position: relative;
  border-top: 1px solid var(--color-border);
  padding: 22px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-links { display: flex; gap: 22px; }
.footer-links a:hover { color: var(--color-accent-bright); }

/* =========================================================
   CONTACT MODAL
   ========================================================= */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 21, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: backdropIn 0.3s var(--ease) both;
}
@keyframes backdropIn { from { opacity: 0; } to { opacity: 1; } }

.modal-dialog {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 30px 70px -20px rgba(0,0,0,0.45);
  animation: dialogIn 0.45s var(--ease) both;
}
@keyframes dialogIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--color-text);
  transition: background 0.2s var(--ease);
}
.modal-close:hover { background: var(--color-bg-soft); }
.modal-close svg { width: 18px; height: 18px; }
.modal-title {
  font-size: clamp(1.45rem, 2.4vw, 1.75rem);
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}
.modal-lead {
  color: var(--color-text-muted);
  font-size: 0.96rem;
  line-height: 1.6;
  margin-bottom: 24px;
}
.modal .eyebrow { font-size: 0.9rem; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field span {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text);
}
.field span em {
  font-style: normal;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 4px;
}
.field input,
.field textarea {
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--color-text);
  background: var(--color-bg-soft);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 12px 14px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--color-accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(46,147,138,0.10);
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 6px;
}
.form-status {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}
.form-status.is-ok { color: var(--color-accent); }
.form-status.is-error { color: #c0392b; }

/* =========================================================
   ANIMATIONS / Reveal on scroll
   ========================================================= */
.reveal,
.reveal-up,
.reveal-fade {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.9s var(--ease);
  will-change: transform, opacity;
}
.reveal-fade { transform: translateY(0) scale(0.985); }

.reveal.is-visible,
.reveal-up.is-visible,
.reveal-fade.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Hero title staggered reveal */
.hero-title .reveal-line {
  opacity: 0;
  transform: translateY(40px);
  animation: lineUp 0.9s var(--ease) forwards;
}
.hero-title .reveal-line:nth-child(1) { animation-delay: 0.15s; }
.hero-title .reveal-line:nth-child(2) { animation-delay: 0.30s; }
@keyframes lineUp { to { opacity: 1; transform: translateY(0); } }

.hero-tagline,
.hero-desc,
.hero-cta {
  animation: fadeUp 0.9s var(--ease) forwards;
  opacity: 0;
  transform: translateY(20px);
}
.hero-tagline { animation-delay: 0.6s; }
.hero-desc { animation-delay: 0.75s; }
.hero-cta { animation-delay: 0.9s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

.sleeve-col.is-visible:nth-child(1) { transition-delay: 0.05s; }
.sleeve-col.is-visible:nth-child(2) { transition-delay: 0.18s; }
.sleeve-col.is-visible:nth-child(3) { transition-delay: 0.32s; }

.env-item.is-visible:nth-child(1) { transition-delay: 0.05s; }
.env-item.is-visible:nth-child(2) { transition-delay: 0.15s; }
.env-item.is-visible:nth-child(3) { transition-delay: 0.25s; }
.env-item.is-visible:nth-child(4) { transition-delay: 0.35s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal, .reveal-up, .reveal-fade { opacity: 1; transform: none; }
  .hero-title .reveal-line, .hero-tagline, .hero-desc, .hero-cta, .hero-bar { opacity: 1; transform: none; animation: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .hero { min-height: auto; }

  .vision-inner,
  .approche-inner { grid-template-columns: 1fr; }
  .approche-inner .approche-content { order: 1; }
  .approche-inner .approche-media { order: 2; }

  .sleeve-grid { grid-template-columns: 1fr; }
  .sleeve-product { max-width: 480px; margin: 0 auto; }

  .env-layout { grid-template-columns: 1fr; }
  .env-media { max-width: 480px; margin: 0 auto; }

  .points-inner { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav,
  .header-cta { display: none; }
  .menu-toggle { display: block; margin-left: auto; }

  .header-inner { gap: 12px; }
  .lang-switch { margin-left: auto; }
  .lang-switch ~ .menu-toggle { margin-left: 0; }
  .lang-btn { padding: 5px 9px; min-width: 30px; font-size: 0.64rem; }

  .brand img { height: 56px; }

  .hero { padding-top: 120px; padding-bottom: 90px; }
  .hero-title { font-size: clamp(2.6rem, 12vw, 4.2rem); }
  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(8,12,16,0.85) 0%, rgba(10,16,21,0.7) 60%, rgba(10,16,21,0.6) 100%);
  }

  .sleeve-cols { grid-template-columns: 1fr; }

  .points-grid { grid-template-columns: 1fr 1fr; }

  .footer-bottom .container { justify-content: center; text-align: center; }

  .modal-dialog { padding: 28px 22px; }
  .field-row { grid-template-columns: 1fr; }

  .eyebrow { font-size: 1.05rem; }
}

@media (max-width: 1024px) {
  .footer-col--cta { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .patent-badge { padding: 26px 24px; gap: 18px; }
  .patent-icon { width: 72px; height: 72px; border-radius: 14px; }
  .patent-icon svg { width: 40px; height: 40px; }
  .patent-sub { font-size: 1.5rem; }
}