/* Brand: black dominant (as in the company presentation), teal as the main colour, rust as a small touch. Light sections alternate with black bands. */
:root {
  --night: #0A0A0A;
  --night-2: #161616;
  --night-ink: #FFFFFF;
  --night-muted: #A9B1B6;
  --night-line: rgba(255, 255, 255, .14);
  --teal-on-night: #2FA690;
  --rust-on-night: #E5713F;

  --paper: #FFFFFF;
  --stone: #F2F1EE;
  --ink: #1B2127;
  --muted: #5A646D;
  --line: #E2E0DB;
  --teal: #0F6B5E;
  --teal-strong: #0A5247;
  --rust: #B8461B;
  --on-teal: #FFFFFF;

  --font: "Lexend", "Segoe UI", system-ui, sans-serif;
  --max: 1160px;
  --radius: 4px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #111111; --stone: #1A1A1A; --ink: #ECEFF1; --muted: #A9B1B6; --line: #2C2C2C;
    --teal: #2FA690; --teal-strong: #4FC2AB; --rust: #E5713F; --on-teal: #06231E;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #111111; --stone: #1A1A1A; --ink: #ECEFF1; --muted: #A9B1B6; --line: #2C2C2C;
  --teal: #2FA690; --teal-strong: #4FC2AB; --rust: #E5713F; --on-teal: #06231E;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--font); font-weight: 300; font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
strong, b { font-weight: 500; }
a { color: var(--teal); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--teal-on-night); outline-offset: 3px; border-radius: 2px;
}
h1, h2, h3, h4 { font-family: var(--font); line-height: 1.2; margin: 0; text-wrap: balance; }
p { margin: 0; }
img { max-width: 100%; display: block; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--paper); color: var(--ink); padding: 10px 14px; }
.skip:focus { left: 12px; }
.wrap {
  max-width: var(--max); margin: 0 auto; position: relative;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.label {
  font-size: 0.76rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.16em; color: var(--teal);
}
.section { padding-block: clamp(64px, 9vw, 112px); }
.section-head { display: grid; gap: 16px; max-width: 720px; margin-bottom: 52px; }
.section-head h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 400; letter-spacing: -0.01em; }
.section-head h2::after { content: ""; display: block; width: 72px; height: 4px; background: var(--teal); margin-top: 18px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* Dark bands */
.dark { background: var(--night); color: var(--night-ink); }
.dark .label { color: var(--teal-on-night); }
.dark .section-head p { color: var(--night-muted); }
.dark .section-head h2::after { background: var(--teal-on-night); }
.dark a:not(.btn) { color: var(--teal-on-night); }
.stone { background: var(--stone); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap;
  font: 500 0.95rem/1 var(--font); text-decoration: none; cursor: pointer;
  padding: 14px 22px; border-radius: var(--radius); border: 1px solid transparent;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn-primary { background: #0F6B5E; color: #FFFFFF; }
.btn-primary:hover { background: #0A5247; }
.btn-outline { border-color: var(--night-line); color: var(--night-ink); background: transparent; }
.btn-outline:hover { border-color: var(--teal-on-night); color: var(--teal-on-night); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20; background: var(--night); color: var(--night-ink);
  padding-top: env(safe-area-inset-top, 0px); border-bottom: 1px solid var(--night-line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 12px; }
.brand { display: block; flex: none; }
.brand img { height: 44px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav .links { display: flex; gap: 28px; }
.nav .links a { color: var(--night-ink); text-decoration: none; font-size: 0.92rem; font-weight: 400; }
.nav .links a:hover { color: var(--teal-on-night); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.nav .btn { padding: 11px 18px; }
.lang { color: var(--night-ink); text-decoration: none; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.08em; border: 1px solid var(--night-line); border-radius: var(--radius); padding: 9px 10px; line-height: 1; }
.lang:hover { border-color: var(--teal-on-night); color: var(--teal-on-night); }
.menu-btn { display: none; background: none; border: 1px solid var(--night-line); border-radius: var(--radius); padding: 9px; color: var(--night-ink); cursor: pointer; }
.menu-btn svg { width: 20px; height: 20px; display: block; }
.sm-only { display: none; }
@media (max-width: 960px) {
  .menu-btn { display: block; }
  .nav .links { display: none; }
  .nav.open .links {
    display: grid; gap: 0; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--night); border-bottom: 1px solid var(--night-line);
    padding: 4px max(20px, env(safe-area-inset-left, 0px)) 14px;
  }
  .nav.open .links a { padding: 13px 0; border-bottom: 1px solid var(--night-line); }
  .nav.open .links a:last-child { border-bottom: 0; }
}
@media (max-width: 480px) {
  .brand img { height: 38px; }
  .sm-only { display: inline; }
  .lg-only { display: none; }
  .nav .btn { padding: 10px 14px; }
}

/* Hero */
.hero { position: relative; overflow: hidden; padding-block: clamp(64px, 9vw, 120px) clamp(56px, 8vw, 104px); }
.hero-lines { position: absolute; top: 0; right: 0; width: 50%; height: 100%; pointer-events: none; opacity: .45; transform: scaleX(-1); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 72px); align-items: center; }
.hero-copy { display: grid; gap: 26px; }
.hero h1 { font-size: clamp(2.3rem, 5.2vw, 3.8rem); font-weight: 500; letter-spacing: -0.02em; line-height: 1.1; }
.hero h1 em { font-style: normal; color: var(--teal-on-night); }
:lang(fr) .hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.2rem); }
.hero-lede { font-size: 1.15rem; color: var(--night-muted); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 0.85rem; color: var(--night-muted); }
.hero-meta span::before { content: ""; display: inline-block; width: 6px; height: 6px; background: var(--rust-on-night); margin-right: 9px; vertical-align: 2px; }
.starts { background: var(--night-2); border: 1px solid var(--night-line); border-top: 4px solid var(--teal-on-night); padding: 30px; display: grid; gap: 18px; }
.starts h2 { font-size: 1.05rem; font-weight: 500; }
.starts ul { list-style: none; margin: 0; padding: 0; display: grid; }
.starts li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; padding-block: 13px; border-top: 1px solid var(--night-line); font-size: 0.95rem; }
.starts li:first-child { border-top: 0; padding-top: 0; }
.starts li svg { width: 18px; height: 18px; margin-top: 4px; color: var(--teal-on-night); }
.starts .note { font-size: 0.88rem; color: var(--night-muted); }
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: minmax(0, 1fr); }
  .hero-lines { width: 100%; opacity: .14; }
}

/* Capabilities */
.caps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.cap { background: var(--stone); border-top: 4px solid var(--teal); padding: 28px 28px 32px; display: grid; gap: 12px; align-content: start; }
.cap h3 { font-size: 1.15rem; font-weight: 500; }
.cap p { color: var(--muted); font-size: 0.97rem; }
.cap ul { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 6px; font-size: 0.92rem; }
.cap li { padding-left: 16px; position: relative; }
.cap li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 6px; background: var(--teal); }
@media (max-width: 960px) { .caps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .caps { grid-template-columns: minmax(0, 1fr); } }

/* Signature services (dark band) */
.sig-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.sig { background: var(--night-2); border-top: 4px solid var(--teal-on-night); padding: 30px 28px 32px; display: grid; gap: 20px; align-content: start; }
.sig.accent { border-top-color: var(--rust-on-night); }
.sig h3 { font-size: 1.3rem; font-weight: 500; }
.sig .sub { font-size: 0.85rem; font-weight: 500; color: var(--teal-on-night); margin-top: 6px; }
.sig.accent .sub, .sig.accent h4 { color: var(--rust-on-night); }
.sig h4 { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal-on-night); margin: 0 0 8px; }
.sig p, .sig ul { color: var(--night-muted); font-size: 0.95rem; }
.sig ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.sig li { padding-left: 16px; position: relative; color: var(--night-ink); }
.sig li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 6px; background: currentColor; opacity: .6; }
.sig .outcome { color: var(--night-ink); font-weight: 500; font-size: 1rem; }
.sig-more { margin-top: 32px; color: var(--night-muted); }
@media (max-width: 960px) { .sig-list { grid-template-columns: minmax(0, 1fr); } }

/* Engagement models */
.ongoing { margin-top: 56px; background: var(--night); color: var(--night-ink); border-top: 4px solid var(--teal-on-night); padding: clamp(28px, 4vw, 44px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 56px); }
.ongoing .label { color: var(--teal-on-night); }
.ongoing-intro { display: grid; gap: 16px; align-content: start; justify-items: start; }
.ongoing-intro h3 { font-size: clamp(1.35rem, 2.4vw, 1.7rem); font-weight: 400; line-height: 1.25; }
.ongoing-intro p:not(.label) { color: var(--night-muted); }
.ongoing-points { display: grid; gap: 0; }
.ongoing-points div { padding: 18px 0; border-top: 1px solid var(--night-line); }
.ongoing-points div:first-child { border-top: 0; padding-top: 0; }
.ongoing-points h4 { font-size: 1.05rem; font-weight: 500; margin: 0 0 6px; }
.ongoing-points h4::before { content: ""; display: inline-block; width: 8px; height: 8px; background: var(--rust-on-night); margin-right: 10px; vertical-align: 2px; }
.ongoing-points p { color: var(--night-muted); font-size: 0.95rem; }
@media (max-width: 860px) { .ongoing { grid-template-columns: minmax(0, 1fr); } }
.models { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.model { padding: 26px 24px 8px 0; display: grid; gap: 10px; align-content: start; }
.model + .model { padding-left: 24px; border-left: 1px solid var(--line); }
.model .num { font-size: 0.8rem; font-weight: 500; color: var(--rust); letter-spacing: 0.1em; }
.model h3 { font-size: 1.12rem; font-weight: 500; }
.model p { color: var(--muted); font-size: 0.95rem; }
@media (max-width: 900px) {
  .models { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model:nth-child(3) { padding-left: 0; border-left: 0; }
  .model:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 560px) {
  .models { grid-template-columns: minmax(0, 1fr); }
  .model, .model + .model { padding-left: 0; border-left: 0; }
  .model + .model { border-top: 1px solid var(--line); }
}

/* Experience */
.exp { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(28px, 5vw, 56px); }
.creds { display: grid; gap: 24px; align-content: start; }
.big { font-size: clamp(3rem, 7vw, 4.6rem); font-weight: 600; line-height: 1; letter-spacing: -0.03em; color: var(--teal); }
.big small { display: block; font-size: 0.95rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); margin-top: 12px; }
.bg-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; font-size: 0.97rem; }
.bg-list li { padding-left: 18px; position: relative; }
.bg-list li::before { content: ""; position: absolute; left: 0; top: 0.68em; width: 6px; height: 6px; background: var(--teal); }
.side { display: grid; gap: 20px; align-content: start; }
.cert-box { background: var(--paper); border-top: 4px solid var(--rust); padding: 24px 26px; }
.cert-box h3, .sectors h3 { font-size: 0.74rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--rust); margin-bottom: 12px; }
.cert-box ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 0.95rem; }
.cert-box b { font-weight: 600; }
.pillars { background: var(--paper); border-top: 4px solid var(--teal); padding: 22px 26px; display: grid; gap: 8px; font-size: 0.95rem; }
.pillars b { color: var(--teal); font-weight: 600; }
.sectors h3 { color: var(--teal); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 0.82rem; font-weight: 500; padding: 6px 12px; border-radius: 999px; background: color-mix(in srgb, var(--teal) 14%, var(--paper)); color: var(--teal-strong); }
@media (max-width: 900px) { .exp { grid-template-columns: minmax(0, 1fr); } }
.why { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.why article { background: var(--paper); border-top: 4px solid var(--teal); padding: 26px 28px 30px; display: grid; gap: 10px; align-content: start; }
.why article:nth-child(2) { border-top-color: var(--rust); }
.why h3 { font-size: 1.12rem; font-weight: 500; }
.why p { color: var(--muted); font-size: 0.97rem; }
.creds-strip { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 48px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.creds-strip h3 { font-size: 0.74rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal); margin-bottom: 12px; }
@media (max-width: 960px) { .why { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) { .creds-strip { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 620px) { .why { grid-template-columns: minmax(0, 1fr); } }

/* Recent engagements */
.eng { border-top: 2px solid var(--teal); }
.eng-row { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; padding-block: 20px; border-bottom: 1px solid var(--line); }
.eng-head { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal); padding-block: 14px; }
.eng-row h3 { font-size: 1.05rem; font-weight: 500; line-height: 1.35; }
.eng-row .done { color: var(--muted); font-size: 0.95rem; }
.eng-row .out { color: var(--teal); font-weight: 500; font-size: 0.95rem; }
.eng-note { font-size: 0.85rem; color: var(--muted); margin-top: 16px; }
@media (max-width: 760px) {
  .eng-head { display: none; }
  .eng-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}

/* FAQ */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); max-width: 860px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 1.05rem; font-weight: 500; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--teal); font-size: 1.4rem; line-height: 1; font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--muted); padding: 0 40px 22px 0; }

/* Partners (dark band) */
.partners .wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px 48px; align-items: center; }
.partners h2 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); font-weight: 400; margin: 12px 0 10px; }
.partners p { color: var(--night-muted); max-width: 46em; }
@media (max-width: 760px) { .partners .wrap { grid-template-columns: minmax(0, 1fr); } }

/* Contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 72px); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
.contact-info { display: grid; gap: 24px; align-content: start; }
.contact-info .section-head { margin-bottom: 0; }
.direct { display: grid; gap: 16px; margin: 0; }
.direct div { display: grid; gap: 2px; }
.direct dt { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.direct dd { margin: 0; font-size: 1.05rem; font-weight: 400; }
.direct dd a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--teal); }
.direct dd a:hover { color: var(--teal); }
form.card { background: var(--stone); border-top: 4px solid var(--teal); padding: clamp(22px, 4vw, 34px); display: grid; gap: 16px; }
.row2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 560px) { .row2 { grid-template-columns: minmax(0, 1fr); } }
label { display: grid; gap: 6px; font-size: 0.88rem; font-weight: 500; }
input, textarea, select {
  font: 300 1rem/1.4 var(--font); color: var(--ink); background: var(--paper);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 11px 12px; width: 100%;
}
input:focus, textarea:focus, select:focus { border-color: var(--teal); outline: none; box-shadow: 0 0 0 2px color-mix(in srgb, var(--teal) 35%, transparent); }
textarea { min-height: 130px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.form-foot small { color: var(--muted); font-size: 0.85rem; }
.form-status { font-size: 0.95rem; padding: 12px 14px; background: var(--paper); border-left: 3px solid var(--teal); }

/* Footer */
footer { background: var(--night); color: var(--night-muted); padding-block: 40px; font-size: 0.88rem; }
footer .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 32px; justify-content: space-between; }
footer img { height: 40px; width: auto; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
footer a { color: var(--night-muted); }
footer a:hover { color: var(--teal-on-night); }