/* ─────────────────────────────────────────────────────────────
   WYP.agency — Landing one-pager
   Système strict : ink / paper / accent + filets fins
   Fontes : Newsreader (sérif éditorial), Archivo cond. (sans),
            JetBrains Mono (méta).
   ──────────────────────────────────────────────────────────── */

:root {
  --ink:    #0A0A0A;
  --paper:  #F5F2EC;
  --accent: #B85450;

  --soft:   #EBE6DD;
  --muted:  rgba(10, 10, 10, 0.5);
  --rule:   rgba(10, 10, 10, 0.12);
  --rule-strong: rgba(10, 10, 10, 0.22);

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans:  'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --gutter: clamp(20px, 4vw, 56px);
  --header-h: 64px;
  --section-y: clamp(72px, 9vw, 144px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

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

/* ─── Skip link ─────────────────────────── */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 8px 12px; font-family: var(--mono); font-size: 12px;
}
.skip:focus { left: 8px; top: 8px; z-index: 100; }

/* ─── Header ────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 14px var(--gutter);
  background: rgba(245, 242, 236, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--rule);
}

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink);
}
.brand-mark { color: var(--ink); flex: 0 0 28px; }
.brand-word {
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: 18px; letter-spacing: -0.025em;
  line-height: 1;
}
.brand-tld { color: var(--muted); }

.site-nav {
  display: flex; gap: clamp(12px, 2vw, 28px);
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase;
}
.site-nav a {
  position: relative;
  padding: 6px 0;
  color: var(--ink);
  transition: color .25s ease;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s cubic-bezier(.2, .7, .2, 1);
}
.site-nav a:hover::after { transform: scaleX(1); }

.site-meta {
  display: flex; align-items: center; gap: 16px;
}

.lang {
  display: inline-flex;
  border: 1px solid var(--rule-strong);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.12em;
}
.lang button {
  appearance: none; background: transparent; border: 0;
  color: var(--muted);
  padding: 6px 9px;
  cursor: pointer;
  font: inherit; letter-spacing: inherit;
  transition: color .2s ease, background .2s ease;
}
.lang button + button { border-left: 1px solid var(--rule-strong); }
.lang button:hover { color: var(--ink); }
.lang button.is-active { color: var(--paper); background: var(--ink); }

/* ─── Buttons ───────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  transition: background .25s ease, color .25s ease, border-color .25s ease;
  cursor: pointer;
}
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }

.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

.btn--text {
  border: 0;
  padding: 11px 0;
  color: var(--ink);
  position: relative;
}
.btn--text::after {
  content: ""; position: absolute; left: 0; bottom: 6px; height: 1px;
  width: 100%; background: var(--ink);
  transform: scaleX(.3); transform-origin: left;
  transition: transform .35s cubic-bezier(.2, .7, .2, 1), background .25s;
}
.btn--text:hover { color: var(--accent); }
.btn--text:hover::after { transform: scaleX(1); background: var(--accent); }

/* ─── Section primitives ─────────────────── */
.meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.muted { color: var(--muted); }

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 920px;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.section-head h2 {
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: clamp(48px, 7vw, 96px);
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0;
  text-wrap: balance;
}
.section-head h2 em {
  font-style: normal;
  color: var(--accent);
}
.section-lede {
  font-family: var(--serif);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.5;
  color: var(--ink);
  max-width: 56ch;
  margin: 8px 0 0;
}

/* ─── Hero ──────────────────────────────── */
.hero {
  padding: clamp(80px, 10vw, 160px) var(--gutter) clamp(72px, 8vw, 120px);
  border-bottom: 1px solid var(--rule);
}

.hero-rail {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: clamp(40px, 6vw, 80px);
}

.hero-title {
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: clamp(64px, 14vw, 220px);
  line-height: 0.86;
  letter-spacing: -0.045em;
  margin: 0;
  text-wrap: balance;
}
.hero-q  { display: block; color: var(--ink); }
.hero-em {
  display: inline-block;
  color: var(--accent);
}
.hero-mark {
  display: inline-block;
  color: var(--ink);
  margin-left: 0.05em;
  vertical-align: -0.03em;
}

.hero-foot {
  margin-top: clamp(48px, 6vw, 88px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: end;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.hero-lede {
  font-family: var(--serif);
  font-size: clamp(18px, 1.7vw, 24px);
  line-height: 1.45;
  margin: 0;
  max-width: 48ch;
  color: var(--ink);
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: 16px;
  justify-content: flex-end;
}

@media (max-width: 720px) {
  .hero-foot { grid-template-columns: 1fr; }
  .hero-actions { justify-content: flex-start; }
}

/* ─── Manifesto ─────────────────────────── */
.manifesto {
  padding: var(--section-y) var(--gutter);
  border-bottom: 1px solid var(--rule);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  max-width: 1080px;
}

.manifesto .lede {
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.4;
  margin: 0;
  max-width: 28ch;
}
.manifesto .lede em {
  font-style: italic;
  color: var(--accent);
}

.manifesto .rule {
  height: 1px;
  background: var(--ink);
  width: 64px;
}

.manifesto-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
  font-family: var(--serif);
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.6;
}
.manifesto-body p { margin: 0; max-width: 56ch; }
.manifesto-body em {
  font-style: italic;
  color: var(--accent);
}

@media (max-width: 720px) {
  .manifesto-body { grid-template-columns: 1fr; }
}

.pull {
  margin: 0;
  padding: 32px 0 0;
  border-top: 1px solid var(--rule);
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(28px, 3.6vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 22ch;
}

/* ─── Method ────────────────────────────── */
.method {
  padding: var(--section-y) var(--gutter);
  border-bottom: 1px solid var(--rule);
}

.steps {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--ink);
}
.step {
  padding: 28px 24px 32px;
  border-right: 1px solid var(--rule);
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 14px;
  min-height: 280px;
}
.step:last-child { border-right: 0; }

.step-num {
  font-family: var(--mono);
  font-size: 13px; letter-spacing: 0.16em;
  color: var(--accent);
}
.step h3 {
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: clamp(22px, 2vw, 30px);
  letter-spacing: -0.02em;
  margin: 0;
}
.step p {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.55;
  margin: 0;
  color: var(--ink);
}
.step-meta {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  align-self: end;
}

@media (max-width: 980px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step { border-bottom: 1px solid var(--rule); }
  .step:nth-child(2n) { border-right: 0; }
}
@media (max-width: 540px) {
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; }
  .step:last-child { border-bottom: 0; }
}

/* ─── FAQ ───────────────────────────────── */
.faq {
  padding: var(--section-y) var(--gutter);
  border-bottom: 1px solid var(--rule);
}

.faq-list {
  border-top: 1px solid var(--ink);
  max-width: 980px;
}
.faq details {
  border-bottom: 1px solid var(--rule);
}
.faq summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--sans);
  font-weight: 700; font-stretch: 75%;
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.02em;
  color: var(--ink);
  transition: color .2s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--accent); }

.faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 22px; line-height: 1;
  color: var(--accent);
  transition: transform .3s cubic-bezier(.2,.7,.2,1);
  flex: 0 0 auto;
}
.faq details[open] summary::after { transform: rotate(45deg); }

.faq details p {
  font-family: var(--serif);
  font-size: 17px; line-height: 1.6;
  margin: 0 0 22px;
  max-width: 64ch;
  color: var(--ink);
}

/* ─── Contact ───────────────────────────── */
.contact {
  padding: var(--section-y) var(--gutter);
}
.contact-card {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(48px, 6vw, 96px) clamp(28px, 4vw, 64px);
  display: grid;
  gap: clamp(40px, 5vw, 64px);
}
.section-head--ink h2 { color: var(--paper); }
.section-head--ink h2 em { color: var(--accent); }
.section-head--ink .meta { color: rgba(245,242,236,0.55); }
.section-head--ink .section-lede { color: var(--paper); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 64px);
  border-top: 1px solid rgba(245,242,236,0.18);
  padding-top: clamp(28px, 4vw, 56px);
}
.contact-block {
  display: grid; gap: 10px;
  align-content: start;
}
.contact-block .meta { color: rgba(245,242,236,0.55); }

.contact-line {
  font-family: var(--sans);
  font-weight: 700; font-stretch: 75%;
  font-size: clamp(17px, 1.5vw, 22px);
  letter-spacing: -0.01em;
  color: var(--paper);
  display: inline-flex; align-items: center; gap: 12px;
  transition: color .25s ease, gap .25s ease;
}
.contact-line:hover {
  color: var(--accent);
  gap: 16px;
}
.contact-icon {
  flex-shrink: 0;
  opacity: 0.85;
  transition: opacity .25s ease;
}
.contact-line:hover .contact-icon { opacity: 1; }
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ─── Footer ────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 32px var(--gutter);
}
.footer-grid {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.footer-brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: 14px; letter-spacing: -0.02em;
}
.footer-brand svg { color: var(--ink); }
.footer-nav {
  display: flex; gap: 24px; justify-content: center;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase;
}
.footer-nav a { color: var(--muted); transition: color .2s ease; }
.footer-nav a:hover { color: var(--ink); }

.footer-meta {
  margin: 0;
  display: flex; gap: 16px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ─── Burger button ─────────────────────── */
.burger {
  appearance: none; background: transparent; border: 0;
  width: 36px; height: 36px;
  display: none; /* shown on mobile only */
  align-items: center; justify-content: center;
  cursor: pointer;
  padding: 0;
}
.burger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  margin: 3px 0;
  transition: transform .3s ease, opacity .25s ease;
}
.mobile-menu[data-open="true"] ~ * .burger span:nth-child(1),
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* ─── Mobile menu panel ─────────────────── */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 49;
  background: var(--paper);
  padding: calc(var(--header-h) + 32px) var(--gutter) 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.mobile-menu[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
}
.mobile-menu__nav a {
  font-family: var(--sans);
  font-weight: 900; font-stretch: 75%;
  font-size: clamp(36px, 9vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--ink);
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  transition: color .2s ease, padding-left .25s ease;
}
.mobile-menu__nav a:hover,
.mobile-menu__nav a:active {
  color: var(--accent);
  padding-left: 8px;
}
.mobile-menu__foot {
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-top: 1px solid var(--rule);
  padding-top: 24px;
}
.mobile-menu__cta {
  justify-content: center;
  padding: 16px 18px;
  font-size: 13px;
}
.mobile-menu__sign {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr; text-align: left; gap: 18px; }
  .footer-nav, .footer-meta { justify-content: flex-start; }
  .footer-meta { flex-direction: column; gap: 6px; }

  .site-header {
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 12px var(--gutter);
  }
  .site-nav { display: none; }
  .btn--cta-desk { display: none; }
  .burger { display: inline-flex; }
  .lang { font-size: 10px; }
  .lang button { padding: 5px 7px; }

  .brand-word { font-size: 16px; }
  .brand-mark { width: 24px; height: 24px; flex-basis: 24px; }
}

@media (min-width: 721px) {
  .mobile-menu { display: none !important; }
}

@media (max-width: 540px) {
  :root { --gutter: 22px; --section-y: 72px; }

  .hero { padding-top: 56px; padding-bottom: 56px; }
  .hero-title { font-size: clamp(56px, 18vw, 96px); line-height: 0.88; }
  .hero-rail { padding-bottom: 14px; margin-bottom: 28px; }
  .hero-foot { gap: 28px; padding-top: 20px; margin-top: 36px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .hero-actions .btn { justify-content: center; }
  .hero-lede { font-size: 18px; }

  .section-head h2 { font-size: clamp(40px, 11vw, 64px); line-height: 0.98; }
  .section-head { margin-bottom: 28px; gap: 10px; }
  .section-lede { font-size: 17px; }

  .manifesto .lede { font-size: 22px; max-width: none; }
  .manifesto-body { font-size: 16px; }
  .pull { font-size: 26px; padding-top: 24px; max-width: none; }

  .step { padding: 22px 18px 26px; min-height: 0; }
  .step h3 { font-size: 22px; }

  .faq summary { font-size: 19px; padding: 18px 0; gap: 14px; }
  .faq summary::after { font-size: 20px; }
  .faq details p { font-size: 16px; margin-bottom: 18px; }

  .contact-card { padding: 40px 24px; gap: 32px; }
  .contact-grid { gap: 28px; padding-top: 28px; }
  .contact-line { font-size: 18px; }

  .footer-nav { flex-wrap: wrap; gap: 14px 20px; }
}

/* ─── Reveal animations ─────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}