/* ================================================================
   VNMT — Typography (Lumoria-aligned)
   ================================================================ */

html, body { overflow-x: hidden; max-width: 100%; }

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--lh-relaxed);
    color: var(--color-text);
    background: var(--color-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--fw-semibold);     /* 600 — không bao giờ 700 */
    color: var(--color-text-dark);
    line-height: var(--lh-tight);
    margin: 0 0 0.5em;
}
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark h5,
.section--dark h6 { color: #ffffff; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; transition: color var(--transition-base); }

strong, b { font-weight: var(--fw-semibold); }
em, i { font-style: italic; }

small { font-size: var(--text-sm); }

/* ── Accessibility: screen-reader-only utility ──────────────────────────
   WP core provides this for admin but not auto-loaded ở front-end theme.
   Dùng cho h2 SR-only ở features/stats sections (heading hierarchy SEO). */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    width: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    word-wrap: normal !important;
}
.screen-reader-text:focus {
    background-color: #f0f0f0;
    clip: auto !important;
    clip-path: none;
    color: #21759b;
    display: block;
    font-size: 14px;
    font-weight: 600;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}