/* ============================================================
   main.css — AAC-CEA Archéo — Design modernisé 2026
   ============================================================ */

/* --- Polices auto-hébergées --------------------------------- */
@font-face {
  font-family: 'EB Garamond';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/eb-garamond-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'EB Garamond';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/eb-garamond-latin-400-italic.woff2') format('woff2');
}
@font-face {
  font-family: 'EB Garamond';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/eb-garamond-latin-600-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/source-sans-3-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/source-sans-3-latin-600-normal.woff2') format('woff2');
}

/* --- Variables de palette ----------------------------------- */
:root {
  --color-bg:          #F9F6F0;
  --color-shadow:      #C6BCB3;
  --color-text:        #2C2C2C;
  --color-h1:          #3E2208;
  --color-h2:          #6B3A1F;
  --color-h3:          #8B5E2A;
  --color-link:        #8B3A1A;
  --color-link-hover:  #A0622A;
  --color-link-visited: #6B3A1F;
  --color-muted:        #777;
  --color-border:      #D4C5A9;
  --color-menu-bg:     #5C3D1E;
  --font-serif:        'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-sans:         'Source Sans 3', Arial, sans-serif;
  --nav-height:        48px;
}

/* --- Reset minimal ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html, body, * {
  margin: 0;
  padding: 0;
}

/* --- Base --------------------------------------------------- */
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.4;
  padding-top: calc(24px + var(--nav-height));
}

/* --- Liens -------------------------------------------------- */
a:link    { color: var(--color-link); }
a:visited { color: var(--color-link-visited); }
a:hover,
a:focus   { color: var(--color-link-hover); }

img {
  border: 0;
}

/* --- Titres ------------------------------------------------- */
h1 {
  font-family: var(--font-serif);
  font-size: 1.65em;
  font-weight: 700;
  color: var(--color-h1);
  letter-spacing: 0.03em;
  text-align: center;
  margin-bottom: 0.2em;
}

h2 {
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-serif);
  font-size: 1.4em;
  font-weight: 700;
  color: var(--color-h2);
  margin-top: 2.2em;
  margin-bottom: 1.1em;
  padding-bottom: 5px;
}

h3 {
  font-size: 1.1em;
  font-weight: 600;
  color: var(--color-h3);
  letter-spacing: 0.06em;
  margin-top: 1.5em;
  margin-bottom: 1.1em;
  padding-left: 30px;
  position: relative;
}

h3::before {
  border-bottom: 1px solid var(--color-h3);
  content: '';
  left: 0;
  position: absolute;
  top: 50%;
  width: 20px;
}

ul {
  margin-left: 2em;
  margin-top: 0.4em;
}

.emphasis {
  font-family: var(--font-sans);
  font-size: 1em;
  font-weight: 700;
  color: var(--color-link-visited);
}

.legend {
  font-size: 0.9em;
  font-style: normal;
  color: var(--color-muted);
}

.separator {
  background-color: var(--color-border);
  height: 1px;
  margin: 3em 0;
  width: 100%;
}

/* --- Contenu principal -------------------------------------- */
#content {
  max-width: 900px;
  margin: 0 auto;
  min-height: calc(100vh - 130px);
  padding: 1.5em 0.75em 3em 0.75em;
}

/* --- En-tête de page --------------------------------------- */
.page-header {
  background-color: #ffeedd;
  border-bottom: 2px solid var(--color-h3);
  box-shadow: 0 0 5px var(--color-shadow);
  margin-bottom: 2.5em;
  padding: 0.5em;
}

.updated-at {
  text-align: right;
  color: var(--color-link-visited);
  font-style: normal;
  font-weight: 700;
  margin-top: -24px;
  margin-right: 1em;
}

/* --- Sections ----------------------------------------------- */
section {
  margin-bottom: 2em;
}

section p {
  margin-bottom: 1em;
  text-align: justify;
}

section p.sub-paragraph {
  margin-left: 20px;
  margin-top: 0.5em;
  padding-left: 20px;
  border-left: 1px solid var(--color-border);
}

.column-center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.row-center {
  display: flex;
  justify-content: space-around;
}

.row-between {
  display: flex;
  justify-content: space-between;
}

.anchor-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.anchor-list > a {
  background-color: var(--color-link-hover);
  border: 1px solid var(--color-link);
  color: #FFFFFF;
  padding: 5px 10px;
  text-decoration: none;
}

.anchor-list > a:hover {
  background-color: var(--color-border);
  border: 1px solid var(--color-link);
  color: var(--color-link);
}

/* --- Figures et images ------------------------------------- */
figure {
  margin: 1em 0;
  text-align: center;
}

figure > img, figure > .container {
  max-width: 100%;
  height: auto;
  border: 2px solid var(--color-border);
  box-shadow: 0 0 7px var(--color-shadow);
}

figure.double {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

figure.double > .container, figure.double > img {
  max-width: 45%;
}

figure .legend {
  margin-bottom: 1em;
}

figcaption {
  font-family: var(--font-sans);
  font-size: 0.88em;
  color: var(--color-h2);
  margin-bottom: 0.4em;
  font-style: normal;
}

/* --- Pied de page ------------------------------------------ */
.page-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.1em 1.25em;
  max-width: 900px;
  margin: 0 auto;
  font-family: var(--font-sans);
  font-size: 0.75em;
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1em;
}

.page-footer a {
  color: var(--color-link);
}

/* --- Bouton retour en haut de page ------------------------- */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background-color: var(--color-menu-bg);
  color: #FFFFFF !important;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 1.2rem;
  line-height: 1;
  transition: box-shadow 0.2s;
}

.back-to-top:hover,
.back-to-top:focus {
  box-shadow: 0 0 10px #000000;
}