/* Atelier Forme — page styles. Tokens only (see theme.css). */

/* ---- fonts (editorial voice: Fraunces display + Inter body) ---- */
@font-face { font-family: "Fraunces"; src: url("../fonts/fraunces-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url("../fonts/fraunces-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

/* ---- base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; }
img { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container { max-width: 1160px; margin-inline: auto; padding-inline: var(--space-4); }
.section { padding-block: var(--space-16); }
[id] { scroll-margin-top: 5.5rem; }

.overline {
  display: inline-flex; align-items: center; gap: var(--space-2);
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm); font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--accent);
}
.overline::before {
  content: ""; width: 2rem; height: 1px; background: var(--accent);
}

.skip {
  position: absolute; left: var(--space-2); top: -3rem; z-index: 200;
  background: var(--brand); color: var(--on-brand);
  padding: 0.6rem 1rem; border-radius: var(--radius-sm);
  text-decoration: none; transition: top var(--speed) var(--ease);
}
.skip:focus { top: var(--space-2); }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  font-family: var(--font-body); font-size: var(--text-base); font-weight: 600;
  letter-spacing: 0.01em; text-decoration: none; cursor: pointer;
  padding: 0.85rem var(--space-3); border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--speed) var(--ease), color var(--speed) var(--ease),
              border-color var(--speed) var(--ease), transform var(--speed) var(--ease);
}
.btn .icon { width: 18px; height: 18px; transition: translate 0.3s var(--ease); }
.btn:hover .icon, .btn:focus-visible .icon { translate: 4px 0; }
.btn-primary { background: var(--brand); color: var(--on-brand); border-color: var(--brand); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--on-surface); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--on-surface); }

/* self-drawing underline link */
.link-draw {
  text-decoration: none; color: var(--on-surface);
  background: linear-gradient(currentColor, currentColor) no-repeat left bottom / 0% 1px;
  padding-bottom: 2px; transition: background-size var(--speed) var(--ease), color var(--speed) var(--ease);
}
.link-draw:hover, .link-draw:focus-visible { background-size: 100% 1px; color: var(--accent); }

/* ---- nav (fixed + nav-morph) ---- */
.nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  transition: padding 0.35s var(--ease), background 0.35s var(--ease),
              box-shadow 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
}
.nav-inner {
  max-width: 1160px; margin-inline: auto; padding: var(--space-3) var(--space-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  transition: padding 0.35s var(--ease);
}
.nav.is-scrolled { background: var(--surface-veil); backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--border); }
.nav.is-scrolled .nav-inner { padding-block: var(--space-2); }
.nav-logo {
  font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700;
  letter-spacing: 0.01em; text-decoration: none; color: var(--on-surface); white-space: nowrap;
}
.nav-logo b { color: var(--accent); font-weight: 700; }
.nav-menu { display: flex; align-items: center; gap: var(--space-4); }
.nav-links { display: flex; align-items: center; gap: var(--space-4); list-style: none; margin: 0; padding: 0; }
.nav-link {
  position: relative; text-decoration: none; color: var(--on-surface);
  font-size: var(--text-base); padding: 0.2rem 0;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform var(--speed) var(--ease);
}
.nav-link:hover, .nav-link:focus-visible { color: var(--accent); }
.nav-link:hover::after, .nav-link:focus-visible::after { transform: scaleX(1); }
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--on-surface); padding: 0.4rem; cursor: pointer;
}
.nav-toggle svg { display: block; width: 22px; height: 22px; }
.nav-toggle .nav-x { display: none; }
.nav[data-open="true"] .nav-menu-btn { display: none; }
.nav[data-open="true"] .nav-x { display: block; }

@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    display: none; position: absolute; inset-inline: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: var(--space-2) var(--space-4) var(--space-3);
    background: var(--surface); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm);
  }
  .nav[data-open="true"] .nav-menu { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link { padding: var(--space-2) 0; border-bottom: 1px solid var(--border); }
  .nav-link::after { display: none; }
  .nav-cta { margin-top: var(--space-2); }
}

/* ---- hero ---- */
.hero { position: relative; padding-block: calc(var(--space-12) + var(--space-8)) var(--space-16); overflow: hidden; }
.hero::after { /* faint plaster grain, squint-test invisible */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background:
    radial-gradient(60% 50% at 78% 8%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 70%),
    radial-gradient(50% 45% at 10% 100%, color-mix(in srgb, var(--brand) 6%, transparent), transparent 70%);
}
.hero-inner { position: relative; max-width: 54rem; }
.hero-title {
  font-size: var(--text-hero); line-height: 1.02; letter-spacing: -0.035em;
  margin: 0; max-width: 18ch;
}
.hero-title em { font-style: italic; font-weight: 400; color: var(--accent); }
.hero-lead {
  font-size: var(--text-lg); line-height: var(--leading-body); color: var(--muted);
  max-width: 46ch; margin: var(--space-6) 0 0;
}
.hero-actions {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-4);
  margin-top: var(--space-8);
}
.hero-note { font-size: var(--text-sm); color: var(--muted); letter-spacing: 0.04em; }

/* ---- 3D story (three-scroll-story) ---- */
.story3d { position: relative; background: var(--surface); }
.story3d-intro { max-width: 1160px; margin-inline: auto; padding: var(--space-12) var(--space-4) 0; }
.story3d-heading { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0; max-width: 18ch; }
.story3d #story-scene {
  position: sticky; top: 0; display: block; width: 100%; height: 100vh; pointer-events: none;
}
.story3d-step { position: relative; min-height: 100vh; display: flex; align-items: center; margin-top: -100vh; }
.story3d-step + .story3d-step { margin-top: 0; }
.story3d-step:first-of-type { margin-top: -100vh; }
.story3d-card {
  max-width: 27rem; margin-inline: 8vw auto; padding: var(--space-6);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(6px); border: 1px solid var(--border); border-radius: var(--radius);
}
.story3d-step[data-pose="1"] .story3d-card { margin-inline: auto 8vw; }
.story3d-num {
  display: block; font-family: var(--font-display); font-size: var(--text-xl);
  color: var(--accent); letter-spacing: 0; margin-bottom: var(--space-1);
}
.story3d-card h3 { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0 0 var(--space-2); }
.story3d-card p { margin: 0; color: var(--muted); font-size: var(--text-lg); line-height: var(--leading-body); }

@media (prefers-reduced-motion: reduce) {
  .story3d #story-scene { position: relative; height: 46vh; }
  .story3d-step { min-height: 0; margin-top: 0 !important; padding-block: var(--space-6); }
}
@media (max-width: 640px) {
  .story3d-card { margin-inline: var(--space-2) !important; padding: var(--space-4); }
}

/* ---- réalisations ---- */
.work-head {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: var(--space-4); margin-bottom: var(--space-8);
}
.work-head h2 { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0; max-width: 16ch; }
.work-head p { margin: 0; color: var(--muted); max-width: 34ch; }
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8) var(--space-6); }
.work-item { margin: 0; }
.work-frame {
  margin: 0 0 var(--space-3); overflow: hidden; border-radius: var(--radius); background: var(--surface-alt);
}
.work-frame img {
  display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover;
  will-change: transform; transition: scale 0.6s var(--ease);
}
.work-item:hover .work-frame img { scale: 1.04; }
.work-name { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; margin: 0; }
.work-meta {
  margin: 0.2rem 0 0; color: var(--muted); font-size: var(--text-sm);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.work-cta { margin-top: var(--space-8); }

@media (max-width: 720px) {
  .work-grid { grid-template-columns: 1fr; gap: var(--space-6); }
}

/* ---- studio / about ---- */
.studio-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: var(--space-8); align-items: center; }
.studio-figure { margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--surface-alt); }
.studio-figure img { display: block; width: 100%; height: auto; aspect-ratio: 2 / 3; object-fit: cover; }
.studio-body h2 { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0 0 var(--space-3); max-width: 16ch; }
.studio-body p { color: var(--muted); font-size: var(--text-lg); margin: 0 0 var(--space-3); max-width: 48ch; }
.studio-tags { list-style: none; margin: var(--space-4) 0 0; padding: var(--space-4) 0 0; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); }
.studio-tags li { font-size: var(--text-sm); letter-spacing: 0.06em; text-transform: uppercase; color: var(--on-surface); }
.studio-tags li::before { content: "—"; color: var(--accent); margin-right: 0.5rem; }

@media (max-width: 780px) {
  .studio-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .studio-figure { max-width: 24rem; }
}

/* ---- figures band (the one charcoal moment) ---- */
.figures { background: var(--brand); color: var(--on-brand); }
.figures-inner {
  max-width: 1160px; margin-inline: auto; padding: var(--space-12) var(--space-4);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4);
}
.figure { text-align: center; padding-inline: var(--space-3); position: relative; }
.figure:not(:first-child)::before {
  content: ""; position: absolute; left: 0; top: 12%; bottom: 12%; width: 1px;
  background: var(--on-brand); opacity: 0.2;
}
.figure-value { display: block; font-family: var(--font-display); font-size: var(--text-hero); line-height: 1; letter-spacing: -0.03em; }
.figure-label { display: block; margin-top: var(--space-2); font-size: var(--text-sm); letter-spacing: 0.06em; opacity: 0.82; }

@media (max-width: 640px) {
  .figures-inner { grid-template-columns: 1fr; gap: var(--space-6); }
  .figure:not(:first-child)::before { display: none; }
  .figure:not(:first-child) { border-top: 1px solid color-mix(in srgb, var(--on-brand) 18%, transparent); padding-top: var(--space-6); }
}

/* ---- contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: start; }
.contact-pitch h2 { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0 0 var(--space-3); max-width: 14ch; }
.contact-lede { font-size: var(--text-lg); color: var(--muted); margin: 0 0 var(--space-6); max-width: 40ch; }
.contact-args { list-style: none; margin: 0 0 var(--space-6); padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.contact-arg { display: flex; align-items: flex-start; gap: var(--space-2); color: var(--on-surface); }
.contact-arg svg { flex: none; width: 20px; height: 20px; color: var(--accent); margin-top: 0.15em; }
.contact-coords { list-style: none; margin: 0; padding: var(--space-6) 0 0; border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: var(--space-3); }
.contact-coord { display: flex; align-items: center; gap: var(--space-2); }
.contact-coord svg { flex: none; width: 20px; height: 20px; color: var(--accent); }
.contact-coord a, .contact-coord address { color: var(--on-surface); text-decoration: none; font-style: normal; }
.contact-coord a:hover { color: var(--accent); }
.contact-privacy { margin: var(--space-4) 0 0; font-size: var(--text-sm); color: var(--muted); }

/* form */
.lead-form { background: var(--surface-alt); color: var(--on-surface-alt); border-radius: var(--radius); padding: var(--space-6); box-shadow: var(--shadow-sm); }
.lead-form h3 { font-family: var(--font-display); font-size: var(--text-lg); margin: 0 0 0.2rem; }
.lead-form .form-note { font-size: var(--text-sm); color: var(--muted); margin: 0 0 var(--space-4); }
.lead-field { margin-bottom: var(--space-3); }
.lead-field label { display: block; font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.02em; margin-bottom: 0.4rem; }
.lead-field label span { color: var(--accent); }
.lead-field input, .lead-field textarea {
  width: 100%; box-sizing: border-box; font: inherit; color: var(--on-surface);
  background: var(--surface); border: 1px solid var(--muted); border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem; transition: border-color var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}
.lead-field textarea { resize: vertical; min-height: 7rem; }
.lead-field input:hover, .lead-field textarea:hover { border-color: var(--on-surface-alt); }
.lead-field input:focus-visible, .lead-field textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-color: var(--accent); }
.lead-submit { width: 100%; margin-top: var(--space-1); }
.lead-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.lead-status { margin: var(--space-3) 0 0; font-size: var(--text-base); }
.lead-status[data-state="sent"] { color: var(--on-surface-alt); border-inline-start: 3px solid var(--accent); padding-inline-start: 0.75em; }
.lead-status[data-state="error"] { color: var(--on-surface-alt); border-inline-start: 3px solid var(--accent); padding-inline-start: 0.75em; }
.lead-submit[disabled] { opacity: 0.6; cursor: wait; }

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-6); }
}

/* ---- footer ---- */
.site-footer { background: var(--surface-alt); color: var(--on-surface-alt); }
.footer-inner { max-width: 1160px; margin-inline: auto; padding: var(--space-12) var(--space-4) var(--space-6); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.3fr; gap: var(--space-8); }
.footer-brand { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; margin: 0 0 var(--space-2); }
.footer-brand b { color: var(--accent); }
.footer-about { margin: 0; max-width: 34ch; color: var(--muted); }
.footer-heading { margin: 0 0 var(--space-3); font-size: var(--text-sm); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.footer-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-list a { color: var(--on-surface-alt); text-decoration: none; }
.footer-list a:hover { color: var(--accent); }
.footer-contact { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); color: var(--muted); }
.footer-contact a { color: var(--on-surface-alt); text-decoration: none; }
.footer-contact a:hover { color: var(--accent); }
.footer-legal {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-2);
  margin-top: var(--space-8); padding-top: var(--space-4);
  border-top: 1px solid color-mix(in srgb, var(--on-surface-alt) 16%, transparent);
}
.footer-copy { margin: 0; font-size: var(--text-sm); color: var(--muted); }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.footer-legal-links a { color: var(--muted); text-decoration: none; font-size: var(--text-sm); }
.footer-legal-links a:hover { color: var(--accent); }

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-legal { justify-content: flex-start; }
}

/* ---- simple content page (confidentialité) ---- */
.prose { max-width: 42rem; margin-inline: auto; }
.prose h1 { font-size: var(--text-2xl); line-height: var(--leading-tight); margin: 0 0 var(--space-2); }
.prose h2 { font-size: var(--text-lg); margin: var(--space-6) 0 var(--space-2); }
.prose p, .prose li { color: var(--muted); }
.prose ul { padding-left: 1.2rem; }
.prose .updated { font-size: var(--text-sm); color: var(--muted); margin-top: 0; }
.prose a { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .nav, .nav-inner, .btn, .btn .icon, .work-frame img, .nav-link::after { transition: none; }
}