/* ============================================================
   Velusia Group LLC — feuille de style principale
   Style institutionnel épuré, palette neutre chaude.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  --bg:        #F5F3EE;
  --bg-alt:    #EFEBE3;
  --ink:       #16130F;
  --ink-soft:  #363129;
  --muted:     #6E6960;
  --muted-2:   #918B80;
  --line:      #E1DCD2;
  --line-2:    #D2CBBE;
  --white:     #FBFAF7;

  --font: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --maxw: 1240px;
  --pad: clamp(1.25rem, 5vw, 4.5rem);
  --section: clamp(4.5rem, 11vw, 9rem);

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

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.028em;
  color: var(--ink);
}

p { margin: 0; }

::selection { background: var(--ink); color: var(--bg); }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: var(--section); }
.section--tight { padding-block: clamp(3rem, 7vw, 5.5rem); }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin: 0 0 1.75rem;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.1rem, 1rem + 0.55vw, 1.4rem);
  line-height: 1.6;
  max-width: 46ch;
  font-weight: 400;
}

.muted { color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(120%) blur(14px);
  -webkit-backdrop-filter: saturate(120%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), background .4s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand {
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.brand span { color: var(--muted-2); font-weight: 500; }

.menu-toggle {
  appearance: none;
  border: 0;
  background: none;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  padding: 0.4rem 0.1rem;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.menu-toggle .menu-toggle__label { position: relative; }
.menu-toggle__icon {
  width: 22px; height: 10px; position: relative; display: inline-block;
}
.menu-toggle__icon::before,
.menu-toggle__icon::after {
  content: ""; position: absolute; left: 0; right: 0; height: 1.5px;
  background: var(--ink); transition: transform .45s var(--ease);
}
.menu-toggle__icon::before { top: 0; }
.menu-toggle__icon::after { bottom: 0; }

/* ---------- Overlay menu ---------- */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: var(--pad);
  padding-top: clamp(1.5rem, 4vw, 2.2rem);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .5s var(--ease), transform .5s var(--ease), visibility 0s linear .5s;
}
.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity .5s var(--ease), transform .5s var(--ease), visibility 0s;
}
.nav-overlay__top {
  display: flex; align-items: center; justify-content: space-between;
  height: 78px;
}
.nav-close {
  appearance: none; border: 0; background: none; font-family: inherit;
  font-size: 1.05rem; font-weight: 500; color: var(--ink); cursor: pointer;
  display: inline-flex; align-items: center; gap: 0.6rem;
}
.nav-close__x { width: 20px; height: 20px; position: relative; display: inline-block; }
.nav-close__x::before, .nav-close__x::after {
  content: ""; position: absolute; top: 50%; left: 0; right: 0; height: 1.5px; background: var(--ink);
}
.nav-close__x::before { transform: rotate(45deg); }
.nav-close__x::after { transform: rotate(-45deg); }

.nav-overlay__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(2rem, 5vw, 3.5rem);
  max-width: var(--maxw);
  margin-inline: auto;
  width: 100%;
}
.nav-list { list-style: none; margin: 0; padding: 0; }
.nav-list li {
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.nav-list li:last-child { border-bottom: 1px solid var(--line); }
.nav-list a {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding: clamp(0.9rem, 2.2vw, 1.5rem) 0;
  font-size: clamp(2rem, 7vw, 4.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
  transition: color .3s var(--ease), padding-left .45s var(--ease);
}
.nav-list a .idx {
  font-size: 0.85rem; font-weight: 600; letter-spacing: 0.1em;
  color: var(--muted-2); transform: translateY(-0.4em);
}
.nav-list a:hover { padding-left: clamp(0.5rem, 2vw, 1.5rem); color: var(--muted); }
.nav-list a[aria-current="page"] { color: var(--muted-2); }

.nav-overlay__foot {
  display: flex; flex-wrap: wrap; gap: 0.4rem 2.5rem;
  color: var(--muted); font-size: 0.95rem;
  border-top: 1px solid var(--line); padding-top: 1.5rem;
}
.nav-overlay__foot a:hover { color: var(--ink); }

/* Reveal animation for nav links */
.nav-list li a, .nav-overlay__foot > * {
  transform: translateY(110%);
  transition: transform .6s var(--ease);
}
.nav-overlay.is-open .nav-list li a,
.nav-overlay.is-open .nav-overlay__foot > * { transform: translateY(0); }
.nav-overlay.is-open .nav-list li:nth-child(1) a { transition-delay: .08s; }
.nav-overlay.is-open .nav-list li:nth-child(2) a { transition-delay: .14s; }
.nav-overlay.is-open .nav-list li:nth-child(3) a { transition-delay: .20s; }
.nav-overlay.is-open .nav-list li:nth-child(4) a { transition-delay: .26s; }
.nav-overlay.is-open .nav-list li:nth-child(5) a { transition-delay: .32s; }
.nav-overlay.is-open .nav-overlay__foot > * { transition-delay: .40s; }

body.menu-open { overflow: hidden; }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(3rem, 8vw, 6.5rem); padding-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.hero__eyebrow {
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted-2); margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
}
.hero h1 {
  font-size: clamp(2.5rem, 1.4rem + 5.6vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 15ch;
  font-weight: 700;
}
.hero__text {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  max-width: 54ch;
  color: var(--muted);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.3rem);
  line-height: 1.62;
}

/* ---------- Link with underline arrow ---------- */
.link-underline {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  color: var(--ink);
  padding-bottom: 0.35rem;
  border-bottom: 1.5px solid var(--ink);
  transition: gap .3s var(--ease), opacity .3s var(--ease);
  letter-spacing: -0.01em;
}
.link-underline svg { transition: transform .35s var(--ease); }
.link-underline:hover { gap: 0.85rem; }
.link-underline:hover svg { transform: translateX(3px); }

/* ---------- Media block (self-contained visual) ---------- */
.media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 8;
  border-radius: 4px;
  overflow: hidden;
  background: linear-gradient(135deg, #E7E1D6 0%, #CFC6B6 48%, #B7AC98 100%);
}
.media svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.media--tall { aspect-ratio: 4 / 5; }
.media--wide { aspect-ratio: 16 / 6; }

/* ---------- Split / activity ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}
@media (min-width: 860px) {
  .split { grid-template-columns: 0.9fr 1.1fr; gap: clamp(3rem, 6vw, 6rem); align-items: start; }
  .split--reverse > :first-child { order: 2; }
}
.h2-lg {
  font-size: clamp(1.8rem, 1.2rem + 2.8vw, 3.25rem);
  line-height: 1.06;
  max-width: 18ch;
}
.prose { color: var(--muted); max-width: 58ch; }
.prose p + p { margin-top: 1.15rem; }

/* ---------- Services list ---------- */
.svc-list { border-top: 1px solid var(--line); }
.svc {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 4vw, 4rem);
  align-items: start;
  padding: clamp(2rem, 4.5vw, 3.25rem) 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .5s var(--ease);
}
.svc:hover { padding-left: clamp(0.25rem, 1.5vw, 1rem); }
.svc__idx { font-size: 0.9rem; font-weight: 600; color: var(--muted-2); letter-spacing: 0.06em; padding-top: 0.5rem; }
.svc__body { max-width: 62ch; }
.svc h3 {
  font-size: clamp(1.4rem, 1.1rem + 1.3vw, 2rem);
  margin-bottom: 0.85rem;
  letter-spacing: -0.03em;
}
.svc p { color: var(--muted); font-size: clamp(1rem, 0.97rem + 0.2vw, 1.12rem); max-width: 52ch; }

@media (min-width: 720px) {
  .svc { grid-template-columns: 5rem 1fr auto; }
}

/* ---------- Feature grid (pourquoi nous choisir) ---------- */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
@media (min-width: 680px) { .features { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .features { grid-template-columns: repeat(4, 1fr); } }
.feature {
  background: var(--bg);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  min-height: 15rem;
  display: flex;
  flex-direction: column;
}
.feature__num { font-size: 0.8rem; font-weight: 600; color: var(--muted-2); letter-spacing: 0.1em; }
.feature h3 { font-size: 1.3rem; margin-top: auto; margin-bottom: 0.7rem; letter-spacing: -0.02em; }
.feature p { color: var(--muted); font-size: 0.98rem; line-height: 1.55; }

/* ---------- Values ---------- */
.values { display: grid; grid-template-columns: 1fr; gap: 0; }
.value {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(1rem,4vw,3.5rem);
  padding: clamp(1.75rem, 3.5vw, 2.75rem) 0;
  border-top: 1px solid var(--line);
}
.values .value:last-child { border-bottom: 1px solid var(--line); }
.value__idx { font-size: 0.85rem; font-weight: 600; color: var(--muted-2); letter-spacing: 0.08em; padding-top: 0.4rem; }
.value h3 { font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.75rem); margin-bottom: 0.6rem; }
.value p { color: var(--muted); max-width: 60ch; }
@media (min-width: 720px) { .value { grid-template-columns: 4rem 1fr; } }

/* ---------- CTA band ---------- */
.cta-band { border-top: 1px solid var(--line); }
.cta-band__inner { display: grid; gap: clamp(1.5rem, 4vw, 2.5rem); }
.cta-band h2 { font-size: clamp(2rem, 1.3rem + 3.6vw, 4rem); max-width: 16ch; letter-spacing: -0.035em; }
@media (min-width: 820px) {
  .cta-band__inner { grid-template-columns: 1fr auto; align-items: end; }
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero { padding-top: clamp(3.5rem, 8vw, 6rem); padding-bottom: clamp(2rem, 5vw, 3.5rem); }
.page-hero h1 {
  font-size: clamp(2.75rem, 1.6rem + 5.5vw, 6rem);
  letter-spacing: -0.04em;
  line-height: 1;
}
.page-hero .lead { margin-top: clamp(1.5rem, 3vw, 2.25rem); max-width: 52ch; }

/* ---------- Legal / prose pages ---------- */
.legal { max-width: 760px; }
.legal h2 {
  font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.6rem);
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 1rem;
  letter-spacing: -0.02em;
}
.legal h2:first-of-type { margin-top: 0; }
.legal p, .legal li { color: var(--ink-soft); }
.legal p + p { margin-top: 1rem; }
.legal ul { margin: 0.5rem 0 0; padding-left: 1.1rem; }
.legal li { margin-bottom: 0.5rem; }
.legal .datalist {
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--line);
}
.legal .datalist li {
  display: grid; grid-template-columns: 1fr; gap: 0.15rem;
  padding: 1rem 0; border-bottom: 1px solid var(--line); margin: 0;
}
.legal .datalist dt, .legal .datalist .k {
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--muted-2); font-weight: 600;
}
.legal .datalist .v { color: var(--ink); font-weight: 500; }
@media (min-width: 620px) {
  .legal .datalist li { grid-template-columns: 15rem 1fr; gap: 1.5rem; align-items: baseline; }
}

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 5rem); }
@media (min-width: 880px) { .contact-grid { grid-template-columns: 1.1fr 0.9fr; } }

.field { margin-bottom: 1.6rem; }
.field label {
  display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.14em;
  font-weight: 600; color: var(--muted-2); margin-bottom: 0.6rem;
}
.field input, .field textarea {
  width: 100%; font-family: inherit; font-size: 1.05rem; color: var(--ink);
  background: transparent; border: 0; border-bottom: 1.5px solid var(--line-2);
  padding: 0.6rem 0; transition: border-color .3s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-bottom-color: var(--ink); }
.field textarea { resize: vertical; min-height: 7rem; }

.btn {
  appearance: none; cursor: pointer; font-family: inherit;
  display: inline-flex; align-items: center; gap: 0.6rem;
  background: var(--ink); color: var(--bg);
  border: 1.5px solid var(--ink); border-radius: 999px;
  padding: 0.9rem 1.6rem; font-size: 1rem; font-weight: 600; letter-spacing: -0.01em;
  transition: background .3s var(--ease), color .3s var(--ease), gap .3s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); gap: 0.9rem; }

.contact-info dl { margin: 0; }
.contact-info .row { padding: 1.25rem 0; border-top: 1px solid var(--line); }
.contact-info .row:last-child { border-bottom: 1px solid var(--line); }
.contact-info dt {
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--muted-2); font-weight: 600; margin-bottom: 0.35rem;
}
.contact-info dd { margin: 0; font-size: 1.1rem; color: var(--ink); font-weight: 500; }
.contact-info dd a:hover { color: var(--muted); }
.form-note { font-size: 0.9rem; color: var(--muted); margin-top: 1rem; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(3rem, 6vw, 5rem) clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2rem, 5vw, 4rem);
}
.footer-top {
  display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 3rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 780px) { .footer-top { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-brand { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.03em; }
.footer-brand span { color: var(--muted-2); font-weight: 500; }
.footer-brand + p { color: var(--muted); margin-top: 1rem; max-width: 34ch; font-size: 0.98rem; }
.footer-col h4 {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--muted-2); font-weight: 600; margin-bottom: 1.1rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.7rem; }
.footer-col a { color: var(--ink-soft); transition: color .25s var(--ease); }
.footer-col a:hover { color: var(--ink); }
.footer-col .addr { color: var(--muted); font-style: normal; line-height: 1.6; font-size: 0.95rem; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; justify-content: space-between;
  padding-top: clamp(1.5rem, 3vw, 2rem); border-top: 1px solid var(--line);
  color: var(--muted-2); font-size: 0.85rem;
}
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }
.footer-bottom a:hover { color: var(--ink); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .nav-list li a, .nav-overlay__foot > * { transform: none; }
}