/* ==========================================================================
   Aurakos — feuille de style
   1. Polices & variables   2. Base   3. Mise en page   4. En-tête & navigation
   5. Boutons & liens       6. Sections de l'accueil      7. Projets
   8. Formulaire            9. Pages annexes              10. Pied de page
   11. Animations           12. Responsive
   ========================================================================== */

/* 1. Polices & variables ------------------------------------------------- */
@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/cormorant-garamond-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: italic;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/cormorant-garamond-latin-500-italic.woff2") format("woff2");
}

:root {
  --paper: #f4f1ea;
  --paper-2: #ebe6db;
  --paper-3: #fbfaf6;
  --ink: #141413;
  --ink-2: #2a2926;
  --muted: #59544c;        /* 6.6:1 sur --paper */
  --line: rgba(20, 20, 19, 0.14);
  --line-strong: rgba(20, 20, 19, 0.32);
  --accent: #7a5a2e;       /* bronze, 5.4:1 sur --paper */
  --online: #2e6b3f;
  --error: #9e2a1d;

  --serif: "Cormorant Garamond", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --section-y: clamp(72px, 11vw, 140px);
  --header-h: 72px;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* 2. Base ----------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, ul, dl, dd, figure { margin: 0; }
ul[role="list"] { list-style: none; padding: 0; }
img { display: block; max-width: 100%; height: auto; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

a { color: inherit; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }

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

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: var(--radius);
}
main:focus { outline: none; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 16px; top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink); color: var(--paper);
  text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* 3. Mise en page --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--top-0 { padding-top: 0; }
.section--tint { background: var(--paper-2); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}

.section__head { margin-bottom: clamp(32px, 5vw, 56px); }
.split .section__head { margin-bottom: 0; }
.section__head--row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: baseline;
}

.section__index,
.eyebrow {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.section__index { margin-bottom: 16px; }
.section__head--row .section__index { margin-bottom: 0; }
.section__index--light { color: #cdb38a; }

.section__title { font-size: clamp(2.2rem, 4.6vw, 3.6rem); }
.section__intro { margin-top: 20px; color: var(--muted); max-width: 34ch; }

.prose-lg {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  margin-bottom: 20px;
}
.section__body > p:not(.prose-lg) { color: var(--muted); max-width: 52ch; }

.grid { display: grid; gap: clamp(24px, 3vw, 40px); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 4. En-tête & navigation ------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 241, 234, 0.94);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand { display: inline-flex; padding: 8px 0; }
.brand img { width: 144px; height: auto; }

.site-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 36px);
}
.site-nav a:not(.btn) {
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--ink-2);
  padding: 6px 0;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size 0.25s var(--ease);
}
.site-nav a:not(.btn):hover,
.site-nav a[aria-current="page"] { background-size: 100% 1px; }

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}
.menu-toggle__bars,
.menu-toggle__bars::before,
.menu-toggle__bars::after {
  display: block;
  width: 20px; height: 1.5px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}
.menu-toggle__bars { position: relative; }
.menu-toggle__bars::before,
.menu-toggle__bars::after { content: ""; position: absolute; left: 0; }
.menu-toggle__bars::before { top: -6px; }
.menu-toggle__bars::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 5. Boutons & liens ------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.btn:hover { background: var(--ink-2); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--small { min-height: 40px; padding: 0 18px; font-size: 0.9rem; }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.link-arrow {
  display: inline-flex;
  gap: 10px;
  font-weight: 500;
  text-decoration: underline;
}
.link-arrow span { transition: transform 0.2s var(--ease); }
.link-arrow:hover span { transform: translateX(4px); }

/* 6. Sections de l'accueil ------------------------------------------------ */
.hero {
  position: relative;
  padding-block: clamp(72px, 14vh, 160px) clamp(72px, 12vh, 140px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero__inner { position: relative; }
.hero .eyebrow { margin-bottom: clamp(24px, 4vw, 40px); }

.hero__title {
  font-size: clamp(3.1rem, 10vw, 8.4rem);
  line-height: 0.95;
  letter-spacing: -0.025em;
}
.hero__title span,
.hero__title em { display: block; }
.hero__title em {
  font-style: italic;
  padding-left: clamp(0px, 11vw, 160px);
  color: var(--ink-2);
}

.hero__body {
  max-width: 560px;
  margin-top: clamp(40px, 6vw, 72px);
  margin-left: auto;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}
.hero__lead { font-size: clamp(1.1rem, 1.5vw, 1.25rem); line-height: 1.55; }
.hero__sub { margin-top: 12px; color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.principles {
  margin-top: 40px;
  border-top: 1px solid var(--line);
}
.principles li {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.principles__name {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--ink);
}

.feature {
  padding-top: 24px;
  border-top: 1px solid var(--line-strong);
}
.feature__num {
  display: block;
  margin-bottom: 28px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--accent);
}
.feature__title { font-size: 1.75rem; margin-bottom: 12px; }
.feature p { color: var(--muted); font-size: 1rem; }

.values {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}
.values__item {
  padding: 28px 24px 8px 0;
}
.values__item + .values__item { padding-left: 24px; border-left: 1px solid var(--line); }
.values dt {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  line-height: 1.1;
  margin-bottom: 10px;
}
.values dd { color: var(--muted); font-size: 1rem; }

.manifesto {
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(96px, 16vw, 200px);
  text-align: center;
}
.manifesto :focus-visible { outline-color: var(--paper); }
.manifesto__inner { max-width: 980px; }
.manifesto__title {
  font-size: clamp(3rem, 9vw, 7.2rem);
  font-style: italic;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-block: 8px 36px;
}
.manifesto__text {
  max-width: 36ch;
  margin-inline: auto;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: #d9d4c8;
}

.more { margin-top: 40px; }

/* 7. Projets -------------------------------------------------------------- */
.projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(24px, 4vw, 64px);
}

.project {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 32px 0 36px;
  border-top: 1px solid var(--line-strong);
}
.project__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
}
.project__name { font-size: clamp(1.8rem, 2.8vw, 2.3rem); }
.project__desc { color: var(--muted); max-width: 46ch; }
.project__link {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 6px 0;
  font-weight: 500;
  text-decoration: underline;
}
.project__link svg { transition: transform 0.2s var(--ease); }
.project__link:hover svg { transform: translate(2px, -2px); }
.project--upcoming .project__name { font-style: italic; color: var(--muted); }

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.status::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
}
.status--online::before { background: var(--online); box-shadow: 0 0 0 3px rgba(46, 107, 63, 0.16); }
.status--development::before { border: 1.5px solid var(--accent); background: linear-gradient(90deg, var(--accent) 50%, transparent 50%); }
.status--upcoming::before { border: 1.5px dashed var(--muted); }

.project-group + .project-group { margin-top: clamp(56px, 8vw, 96px); }
.project-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
  font-size: clamp(1.6rem, 2.6vw, 2rem);
}
.count {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
}

.page-hero { padding-block: clamp(64px, 10vw, 128px) clamp(48px, 7vw, 88px); }
.page-hero--compact { padding-block: clamp(56px, 8vw, 96px) clamp(24px, 4vw, 48px); }
.page-hero .eyebrow { margin-bottom: 20px; }
.page-hero__title { font-size: clamp(2.6rem, 7vw, 5.4rem); line-height: 1; }
.page-hero__lead {
  max-width: 52ch;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
}

.cta-band {
  padding-block: clamp(56px, 8vw, 96px);
  background: var(--paper-2);
}
.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta-band__title { font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-style: italic; }

/* 8. Formulaire ----------------------------------------------------------- */
.form { display: grid; gap: 22px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.9rem; font-weight: 500; }
.field input,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-3);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  transition: border-color 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 160px; }
.field input:hover,
.field textarea:hover { border-color: var(--ink-2); }
.field input:focus-visible,
.field textarea:focus-visible { outline-offset: 0; border-color: var(--ink); }
.field [aria-invalid="true"] { border-color: var(--error); }
.field__error { min-height: 0; font-size: 0.875rem; color: var(--error); }
.field__error:empty { display: none; }

.form__note { font-size: 0.875rem; color: var(--muted); }
.form .btn { justify-self: start; }

.form__status:empty { display: none; }
.form__status {
  padding: 16px 18px;
  border-left: 2px solid var(--ink);
  background: var(--paper-3);
}
.form__status.is-error { border-left-color: var(--error); color: var(--error); }
.form.is-sent .field,
.form.is-sent .form__note,
.form.is-sent .btn { display: none; }
.form.is-sent .form__status { font-size: 1.05rem; }

/* 9. Pages annexes -------------------------------------------------------- */
.legal { max-width: 860px; padding-bottom: var(--section-y); }
.legal section { padding-block: 28px; border-top: 1px solid var(--line); }
.legal h2 { font-size: 1.75rem; margin-bottom: 12px; }
.legal p + p { margin-top: 12px; }
.legal p, .legal li { color: var(--ink-2); }
.legal__list li { padding-block: 4px; }
.placeholder {
  padding: 1px 6px;
  background: #fbe9b7;
  color: #5b3d00;
  font-size: 0.92em;
  font-weight: 500;
}

.not-found {
  min-height: 70vh;
  display: grid;
  align-items: center;
  padding-block: var(--section-y);
}
.not-found__code {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(5rem, 16vw, 11rem);
  line-height: 1;
  color: var(--accent);
  margin-bottom: 16px;
}
.not-found .btn { margin-top: 32px; }

/* 10. Pied de page -------------------------------------------------------- */
.site-footer {
  padding-block: 64px 40px;
  border-top: 1px solid var(--line);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px 48px;
}
.site-footer__brand img { width: 128px; }
.site-footer__slogan {
  margin-top: 14px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.35rem;
}
.site-footer__links {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 6px 40px;
}
.site-footer__links a {
  display: inline-block;
  padding: 4px 0;
  font-size: 0.95rem;
  color: var(--ink-2);
  text-decoration: none;
}
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__legal {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

/* 11. Animations ---------------------------------------------------------- */
/* Apparition discrète au défilement (activée par JS, désactivée si mouvement réduit) */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

/* 12. Responsive ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .values { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .values__item:nth-child(4) { padding-left: 0; border-left: 0; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }

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

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    padding: 8px var(--gutter) 28px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px -16px rgba(20, 20, 19, 0.25);
    display: none;
  }
  .site-header.is-open .site-nav { display: block; }
  .site-header.is-open { border-bottom-color: var(--line); }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav li { border-bottom: 1px solid var(--line); }
  .site-nav li:last-child { border-bottom: 0; padding-top: 20px; }
  .site-nav a:not(.btn) {
    display: block;
    padding: 16px 0;
    font-family: var(--serif);
    font-size: 1.6rem;
    background: none;
  }
  .site-nav .btn { width: 100%; min-height: 48px; }

  .split,
  .section__head--row { grid-template-columns: 1fr; gap: 0; }
  .split { gap: 40px; }
  .section__head--row .section__index { margin-bottom: 16px; }

  .hero__body { margin-left: 0; }
  .projects { grid-template-columns: 1fr; }

  .site-footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  body { font-size: 1rem; }
  .grid--4 { grid-template-columns: 1fr; }
  .feature__num { margin-bottom: 12px; }
  .values { grid-template-columns: 1fr; }
  .values__item,
  .values__item + .values__item {
    display: grid;
    grid-template-columns: 8.5rem 1fr;
    align-items: baseline;
    padding: 18px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }
  .values dt { margin-bottom: 0; }
  .principles li { grid-template-columns: 1fr; gap: 2px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .site-footer__links { gap: 2px 24px; }
}