/* ===========================================================
   typography.css — v4 « Édition érudite »
   =========================================================== */

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    color: var(--color-ink);
    background-color: var(--color-paper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
    position: relative;
}

/* Texture papier — sur toute la page (signature visuelle v4) */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.65;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.08   0 0 0 0 0.06   0 0 0 0 0.04   0 0 0 0.06 0'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    color: var(--color-ink);
    line-height: 1.05;
    font-weight: 460;
    letter-spacing: -0.02em;
    font-variation-settings: 'opsz' 96, 'SOFT' 30;
}

.font-serif  { font-family: var(--font-serif); }
.font-sans   { font-family: var(--font-sans); }
.font-arabic { font-family: var(--font-arabic); }

.font-light   { font-weight: 380; }
.font-regular { font-weight: 440; }
.font-medium  { font-weight: 500; }
.font-bold    { font-weight: 600; }

/* Eyebrow numéroté (signature v4) */
.eyebrow {
    display: inline-flex;
    align-items: baseline;
    gap: 18px;
    margin-bottom: 24px;
    font-family: var(--font-sans);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-ink-soft);
    font-weight: 500;
}

.eyebrow__no {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--color-secondary);
    font-size: 28px;
    letter-spacing: 0;
    text-transform: none;
    line-height: 1;
    font-variation-settings: 'opsz' 60, 'SOFT' 60;
}

/* Italiques expressives v4 */
em, .em {
    font-style: italic;
    font-weight: 380;
    font-variation-settings: 'opsz' 96, 'SOFT' 60;
}

/* Section numeral — chiffre romain en filigrane */
.section-numeral {
    position: absolute;
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 380;
    line-height: 0.82;
    color: var(--color-primary);
    opacity: 0.055;
    pointer-events: none;
    user-select: none;
    letter-spacing: -0.04em;
    font-variation-settings: 'opsz' 144, 'SOFT' 50;
}

/* Liens */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    height: 1px;
    width: 0;
    background-color: var(--color-secondary);
    transition: width 0.3s ease-out;
}

.hover-underline:hover::after { width: 100%; }

/* Citation */
blockquote {
    padding: var(--space-8);
    margin: var(--space-10) 0;
    background: rgba(255, 255, 255, 0.4);
    border-left: 3px solid var(--color-secondary);
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 380;
    color: var(--color-primary);
    font-variation-settings: 'opsz' 60, 'SOFT' 50;
}

blockquote footer,
blockquote cite {
    margin-top: var(--space-2);
    font-size: var(--fs-sm);
    font-weight: 600;
    font-style: normal;
    font-family: var(--font-sans);
    color: var(--color-ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.25em;
}

/* Drop cap v4 */
.drop-cap {
    float: left;
    font-family: var(--font-serif);
    font-weight: 480;
    font-size: 92px;
    line-height: 0.78;
    color: var(--color-secondary);
    padding-right: 14px;
    padding-top: 10px;
    font-variation-settings: 'opsz' 120, 'SOFT' 50;
    margin-bottom: -6px;
    position: relative;
}

.drop-cap::before {
    content: '';
    position: absolute;
    inset: -4px 8px -4px -8px;
    border: 1px solid var(--color-secondary);
    opacity: 0.25;
    pointer-events: none;
}

/* Containers */
.container-7xl,
.container { max-width: var(--container-7xl); margin-inline: auto; padding-inline: 36px; }
.container-5xl { max-width: var(--container-5xl); margin-inline: auto; padding-inline: 36px; }
.container-4xl { max-width: var(--container-4xl); margin-inline: auto; padding-inline: 36px; }
.container-3xl { max-width: var(--container-3xl); margin-inline: auto; padding-inline: 36px; }
.container-2xl { max-width: var(--container-2xl); margin-inline: auto; padding-inline: 36px; }

@media (max-width: 760px) {
    .container-7xl,
    .container,
    .container-5xl,
    .container-4xl,
    .container-3xl,
    .container-2xl { padding-inline: 24px; }
}

/* Section padding */
.section-pad { padding-block: 130px; }
.section-pad-sm { padding-block: 80px; }

@media (max-width: 760px) {
    .section-pad { padding-block: 80px; }
    .section-pad-sm { padding-block: 60px; }
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary);
    color: var(--color-paper);
    z-index: 10000;
    transition: top var(--transition-fast);
}
.skip-link:focus { top: 0; }

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

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}