@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter+Tight:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ======= Variables ======= */
:root {
  /* Couleurs — ink/paper, 1 seul accent vif */
  --ink: #0E0E0C;
  --paper: #F2EFE8;
  --paper-2: #E8E4DA;
  --rule: #1C1C18;
  --accent: #FF4D1C;
  --accent-text: #C93000;
  --accent-wash: #FFE9DF;
  --mono-dim: #6B6A63;
  --live: #0BDA51;

  /* Typo */
  --font-serif: "Instrument Serif", "Times New Roman", Georgia, serif;
  --font-sans: "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Monaco, Consolas, monospace;

  /* Layout */
  --container: 1360px;
  --gutter: 32px;

  /* Easing mécanique */
  --ease: cubic-bezier(0.7, 0, 0.2, 1);
}

/* ======= Reset ======= */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
::selection { background: var(--accent); color: var(--paper); }

/* ======= Layout ======= */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

.section {
  padding: 140px 0;
  border-top: 1px solid var(--rule);
  position: relative;
}
.section--alt { background: var(--paper-2); }
.section[data-num]::before {
  content: "— " attr(data-num);
  position: absolute;
  top: 32px;
  left: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mono-dim);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

/* Typo */
h1, h2 { font-family: var(--font-serif); font-weight: 400; letter-spacing: -0.01em; line-height: 1.05; }
h1 { font-size: clamp(2.8rem, 7vw, 5.5rem); }
h1 em { font-style: italic; color: var(--accent); }
h2 { font-size: clamp(2rem, 4.5vw, 3.25rem); margin-bottom: 24px; }
h3 { font-family: var(--font-serif); font-size: 1.75rem; font-weight: 400; letter-spacing: -0.01em; line-height: 1.15; }

p { color: var(--ink); }
.lead { font-size: 1.125rem; line-height: 1.5; color: var(--ink); max-width: 58ch; font-weight: 400; }

/* ======= Header ======= */
.header {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.logo:hover { color: var(--ink); }
.logo span { color: var(--accent); font-style: normal; font-family: var(--font-mono); font-size: 0.55em; vertical-align: super; margin-left: 2px; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
}
.nav a:hover { color: var(--accent); }
.header__clock {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mono-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ======= Hero ======= */
.hero {
  padding: 120px 0 140px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.hero__content { max-width: 1100px; text-align: left; }
.hero__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero__visual { display: flex; justify-content: flex-end; }
.hero__visual img { max-width: 100%; height: auto; max-height: 400px; }
@media (max-width: 768px) { .hero__grid { grid-template-columns: 1fr; } .hero__visual { display: none; } }
.hero h1 { margin-bottom: 40px; max-width: 16ch; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero .lead { margin-bottom: 48px; border-left: 2px solid var(--accent); padding-left: 20px; max-width: 52ch; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero::before {
  content: "01 / INDEX";
  position: absolute;
  top: 32px;
  right: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mono-dim);
}

/* ======= Footer ======= */
.footer { padding: 32px 0; border-top: 1px solid var(--rule); background: var(--paper); }
.footer__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer p, .footer a {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--mono-dim);
  text-decoration: none;
}
.footer a:hover { color: var(--accent); }
.footer__inner p { flex-wrap: wrap; word-break: break-word; }

/* ======= Responsive ======= */
@media (max-width: 1024px) {
  .section { padding: 96px 0; }
  .hero { padding: 88px 0 100px; }
}
@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .section { padding: 72px 0; }
  .hero { padding: 64px 0 72px; }
  .hero::before, .section[data-num]::before { font-size: 10px; }
  .header__clock { display: none; }
  /* Nav mobile : menu burger */
  .nav { display: none; flex-direction: column; position: absolute; top: 56px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--rule); padding: 16px var(--gutter); gap: 12px; z-index: 100; }
  .nav.is-open { display: flex; }
  .nav a { font-size: 12px; padding: 8px 0; }
  .nav__phone { order: -1; }
  .menu-toggle { display: flex; }
}

/* Menu burger button */
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: none; border: none;
  cursor: pointer; color: var(--ink);
  font-size: 1.4rem;
  padding: 0;
}