/* williamrey.fr : blanc minimaliste, une seule couleur d'accent (cobalt).
   Mise en page : une colonne éditoriale alignée à gauche, séparée par des filets fins ;
   les libellés techniques en police monospace, comme dans un terminal. */

@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("../fonts/geist-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("../fonts/geist-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --bg: #ffffff;
  --fg: #111318;
  --muted: #5c606a;
  --line: #e7e8eb;
  --soft: #f5f6f8;
  --accent: #1f4fe0;
  --accent-ink: #ffffff;

  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Consolas, "Liberation Mono", monospace;

  --step-0: 1rem;
  --step-1: 1.125rem;
  --step-2: 1.5rem;
  --step-3: clamp(1.75rem, 1.2rem + 2.2vw, 2.5rem);
  --step-4: clamp(2.5rem, 1.4rem + 5vw, 4.75rem);
  --wrap: 1080px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0f12; --fg: #f1f2f4; --muted: #9da1aa; --line: #23252b; --soft: #16181c;
    --accent: #7d97ff; --accent-ink: #0e0f12; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0f12; --fg: #f1f2f4; --muted: #9da1aa; --line: #23252b; --soft: #16181c;
  --accent: #7d97ff; --accent-ink: #0e0f12; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 var(--step-0)/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { text-wrap: balance; margin: 0; letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }
.label {
  font: 500 0.75rem/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- En-tête ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.brand { font-weight: 600; text-decoration: none; letter-spacing: -0.01em; }
.brand span { font-family: var(--mono); font-weight: 400; color: var(--muted); }
.nav { display: flex; gap: 22px; font-size: 0.9375rem; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--fg); }
@media (max-width: 640px) { .nav .hide-sm { display: none; } .nav { gap: 16px; } .brand span { display: none; } }

/* ---------- Sections ---------- */
section { padding-block: clamp(56px, 8vw, 104px); border-bottom: 1px solid var(--line); }
.section-head { display: grid; gap: 14px; margin-bottom: clamp(32px, 5vw, 56px); max-width: 44rem; }
.section-head h2 { font-size: var(--step-3); font-weight: 600; }
.section-head p { color: var(--muted); font-size: var(--step-1); }

/* ---------- Accueil (hero) ---------- */
.hero { padding-block: clamp(64px, 11vw, 140px) clamp(56px, 8vw, 96px); }
.prompt { font: 400 0.9375rem/1.5 var(--mono); color: var(--muted); display: flex; flex-wrap: wrap; gap: 0 10px; }
.prompt b { color: var(--accent); font-weight: 500; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #1fae5b; display: inline-block; margin-right: 8px; transform: translateY(-1px); }
.hero h1 { font-size: var(--step-4); font-weight: 600; letter-spacing: -0.035em; margin-top: 22px; max-width: 15ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { margin-top: 26px; font-size: var(--step-1); color: var(--muted); max-width: 40rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px;
  font-weight: 500; text-decoration: none; border: 1px solid var(--line);
  transition: border-color .15s, background .15s, color .15s;
}
.btn-primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn:not(.btn-primary):hover { border-color: var(--fg); color: var(--fg); }

/* ---------- Services ---------- */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.service { padding: 32px 32px 36px 0; border-bottom: 1px solid var(--line); display: grid; gap: 12px; align-content: start; }
.service:nth-child(odd) { border-right: 1px solid var(--line); }
.service:nth-child(even) { padding-left: 32px; padding-right: 0; }
.service h3 { font-size: var(--step-2); font-weight: 600; }
.service p { color: var(--muted); }
.service ul { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.service li { font: 400 0.8125rem/1 var(--mono); padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; color: var(--fg); }
@media (max-width: 720px) {
  .services { grid-template-columns: 1fr; }
  .service, .service:nth-child(odd), .service:nth-child(even) { padding: 28px 0; border-right: 0; }
}

/* ---------- Projet ---------- */
.project { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 72px); align-items: center; }
.project-text { display: grid; gap: 18px; align-content: start; min-width: 0; }
.project-title { display: flex; align-items: center; gap: 14px; }
.project-title img { width: 56px; height: 56px; border-radius: 14px; }
.project-title h3 { font-size: var(--step-3); font-weight: 600; }
.project-text > p { color: var(--muted); font-size: var(--step-1); }
.specs { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 10px 20px; margin: 8px 0 0; font-size: 0.9375rem; }
.specs dt { font: 400 0.8125rem/1.6 var(--mono); color: var(--muted); }
.specs dd { margin: 0; }
.phones { display: flex; gap: 14px; justify-content: center; align-items: flex-end; }
.phone {
  flex: 1 1 0; max-width: 220px; min-width: 0;
  padding: 7px; border-radius: 26px; background: #14161a;
  box-shadow: 0 24px 48px -24px rgba(17, 19, 24, .45);
}
.phone img { border-radius: 20px; width: 100%; aspect-ratio: 9 / 20; object-fit: cover; object-position: top; }
.phone:nth-child(2) { transform: translateY(-28px); }
@media (max-width: 820px) { .project { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .phone:nth-child(3) { display: none; } }

/* ---------- Démarche (vraie séquence) ---------- */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; counter-reset: step; margin: 0; padding: 0; list-style: none; }
.steps li { counter-increment: step; display: grid; gap: 10px; align-content: start; padding-top: 18px; border-top: 2px solid var(--fg); }
.steps li::before { content: counter(step, decimal-leading-zero); font: 500 0.8125rem/1 var(--mono); color: var(--accent); }
.steps h3 { font-size: var(--step-1); font-weight: 600; letter-spacing: -0.01em; }
.steps p { color: var(--muted); }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact { display: grid; gap: 22px; }
.contact h2 { font-size: var(--step-4); font-weight: 600; letter-spacing: -0.035em; max-width: 14ch; }
.mail-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.mail {
  font: 500 clamp(1.15rem, 0.9rem + 1.4vw, 1.75rem)/1.2 var(--mono);
  color: var(--accent); text-decoration: none; overflow-wrap: anywhere;
}
.copy { font: 500 0.8125rem/1 var(--mono); padding: 9px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); cursor: pointer; }
.copy:hover { border-color: var(--fg); }
.contact .hint { color: var(--muted); max-width: 40rem; }

/* ---------- Pied de page ---------- */
.site-footer { padding-block: 32px 40px; color: var(--muted); font-size: 0.875rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--fg); }

/* ---------- Pages de texte (mentions légales, confidentialité) ---------- */
.doc { padding-block: clamp(48px, 7vw, 88px); }
.doc .wrap { max-width: 760px; display: grid; gap: 20px; }
.doc h1 { font-size: var(--step-3); font-weight: 600; }
.doc h2 { font-size: var(--step-1); font-weight: 600; letter-spacing: -0.01em; margin-top: 18px; }
.doc p, .doc li { color: var(--muted); max-width: 65ch; }
.doc .meta { font: 400 0.8125rem/1.6 var(--mono); color: var(--muted); }
.doc dl { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 8px 20px; margin: 0; }
.doc dt { font: 400 0.8125rem/1.7 var(--mono); color: var(--muted); }
.doc dd { margin: 0; }
.todo { background: color-mix(in srgb, #f2b600 22%, transparent); border-radius: 4px; padding: 0 4px; color: var(--fg); }
.lang-switch { display: flex; gap: 8px; }
.lang-switch a { font: 500 0.8125rem/1 var(--mono); padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; text-decoration: none; }
hr.sep { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
@media (max-width: 480px) { .doc dl, .specs { grid-template-columns: 1fr; gap: 2px 0; } .doc dd, .specs dd { margin-bottom: 10px; } }

/* ---------- Page Projets ---------- */
.page-hero { padding-block: clamp(56px, 9vw, 112px) clamp(40px, 6vw, 72px); }
.page-hero h1 { font-size: var(--step-4); font-weight: 600; letter-spacing: -0.035em; margin-top: 18px; max-width: 16ch; }
.page-hero .lede { margin-top: 22px; font-size: var(--step-1); color: var(--muted); max-width: 40rem; }
.cases { display: grid; gap: 0; border-top: 1px solid var(--line); }
.case { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); padding-block: clamp(40px, 6vw, 72px); border-bottom: 1px solid var(--line); align-items: center; }
.case-text { display: grid; gap: 16px; min-width: 0; align-content: start; }
.case-text h2 { font-size: var(--step-3); font-weight: 600; }
.case-text > p { color: var(--muted); font-size: var(--step-1); }
.case .tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.case .tags li { font: 400 0.8125rem/1 var(--mono); padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; }
.case-visual { min-width: 0; }
.browser { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--bg); box-shadow: 0 24px 48px -28px rgba(17, 19, 24, .35); }
.browser-bar { display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line); background: var(--soft); }
.browser-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); display: block; }
.browser-bar span { margin-left: 8px; font: 400 0.75rem/1 var(--mono); color: var(--muted); }
.browser-body { padding: 28px 24px 32px; display: grid; gap: 12px; }
.browser-body .mini-h { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.browser-body .mini-h em { font-style: normal; color: var(--accent); }
.browser-body .mini-p { height: 8px; border-radius: 4px; background: var(--line); }
.next-case { display: grid; gap: 16px; padding-block: clamp(40px, 6vw, 72px); }
.next-case h2 { font-size: var(--step-3); font-weight: 600; max-width: 20ch; }
.next-case p { color: var(--muted); max-width: 40rem; }
@media (max-width: 820px) { .case { grid-template-columns: 1fr; } }

/* ---------- Page Contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.contact-side { display: grid; gap: 28px; min-width: 0; }
.contact-side dl { display: grid; gap: 6px 0; margin: 0; }
.contact-side dt { font: 500 0.75rem/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-top: 14px; }
.contact-side dd { margin: 0; }
.form { display: grid; gap: 18px; padding: clamp(20px, 3vw, 32px); border: 1px solid var(--line); border-radius: 14px; min-width: 0; }
.field { display: grid; gap: 8px; }
.field label { font-weight: 500; font-size: 0.9375rem; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 11px 12px; width: 100%;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips { position: relative; }
.chips input { position: absolute; left: 0; top: 0; width: 1px; height: 1px; opacity: 0; pointer-events: none; margin: 0; }
.chips label { font: 400 0.875rem/1 var(--sans); padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.chips input:checked + label { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chips input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }
.form .note { color: var(--muted); font-size: 0.875rem; }
.form .error { color: #c62828; font-size: 0.875rem; }
.form button.btn { justify-self: start; cursor: pointer; font: inherit; font-weight: 500; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }