/* ==========================================================================
   Atelier Rive-Neuve — feuille de style (2/2)
   Sections contact et pied de page, révélation au scroll, points de rupture.
   À inclure APRÈS styles.css.
   ========================================================================== */

/* --------------------------------------------------------- contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.contact-info dl > div { padding-block: 1.1rem; border-bottom: 1px solid rgba(246,242,234,0.2); }
.contact-info dl > div:first-child { padding-top: 0; }
.contact-info dt {
  font: 500 var(--t-xs)/1 var(--f-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
}
.contact-info dd { margin: 0; font-size: var(--t-md); }
.contact-info dd a { text-decoration: none; }
.contact-info dd a:hover { text-decoration: underline; }
.contact-info .ph { color: var(--accent-light); }
.contact-note {
  margin-top: 1.5rem;
  font-size: var(--t-sm);
  line-height: 1.6;
  color: rgba(246, 242, 234, 0.65);
  max-width: 40ch;
}

.contact-form { display: grid; gap: 1.15rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.15rem; }
.field { display: grid; gap: 0.5rem; }
.field label {
  font: 500 var(--t-xs)/1 var(--f-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.req { color: var(--accent-light); font-weight: 400; letter-spacing: 0.04em; }

.field input,
.field textarea {
  width: 100%;
  font-family: var(--f-body);
  font-size: var(--t-base);
  color: var(--on-ink);
  background: rgba(246, 242, 234, 0.06);
  border: 1px solid rgba(246, 242, 234, 0.3);
  border-radius: 0;
  padding: 0.8rem 0.9rem;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 8rem; }
.field input::placeholder,
.field textarea::placeholder { color: rgba(246, 242, 234, 0.45); }
.field input:hover,
.field textarea:hover { border-color: rgba(246, 242, 234, 0.55); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-light);
  background: rgba(246, 242, 234, 0.1);
}
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] { border-color: var(--accent-light); }

.form-status {
  min-height: 1.4em;
  font: 400 var(--t-sm)/1.5 var(--f-mono);
  color: var(--accent-light);
}
.contact-form .btn-accent { justify-self: start; }

/* --------------------------------------------------------- pied --- */
.site-foot {
  background: var(--ink);
  color: var(--on-ink);
  border-top: 1px solid rgba(246, 242, 234, 0.18);
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}
.foot-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem 2rem;
  align-items: center;
}
.foot-brand .brand-name { color: var(--on-ink); }
.foot-tag {
  font: 400 var(--t-xs)/1.6 var(--f-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(246, 242, 234, 0.55);
  margin-top: 0.35rem;
}
.foot-nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.foot-nav a {
  font: 400 var(--t-sm)/1 var(--f-mono);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.foot-nav a:hover { border-bottom-color: currentColor; }
.foot-nav .ph { color: var(--accent-light); }
.foot-copy {
  grid-column: 1 / -1;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(246, 242, 234, 0.18);
  font: 400 var(--t-xs)/1.6 var(--f-mono);
  color: rgba(246, 242, 234, 0.55);
}

/* ------------------------------------------------- révélation au scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* --------------------------------------------------------- responsive --- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .hero-actions { justify-content: flex-start; }
  .about { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 4.5rem; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    inset: 100% 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule-strong);
    padding: 0.5rem var(--gutter) 1.5rem;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a {
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--rule);
  }
  .site-nav ul a:hover,
  .site-nav ul a.is-active { border-bottom-color: var(--accent); }
  .head-cta { margin-top: 1.1rem; justify-content: center; }

  .step { grid-template-columns: 1fr; gap: 0.65rem; }
  .field-row { grid-template-columns: 1fr; }
  .foot-inner { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: clamp(2.6rem, 15vw, 4rem); }
  .services { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
}

/* --------------------------------------------------- accessibilité --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}