/* ==========================================================================
   Máy Tính Online — design system
   ========================================================================== */
:root {
  color-scheme: light;
  --c-bg: #f4f6fb;
  --c-surface: #ffffff;
  --c-surface-2: #eef1f7;
  --c-border: #e1e6ef;
  --c-text: #0f172a;
  --c-text-2: #3f4a5f;
  --c-muted: #64748b;
  --c-accent: #2563eb;
  --c-accent-2: #1d4ed8;
  --c-accent-soft: #e3ecff;
  --c-success: #15803d;
  --c-success-soft: #dcfce7;
  --c-danger: #dc2626;
  --c-danger-soft: #fee2e2;
  --c-warn: #b45309;
  --c-warn-soft: #fef3c7;
  --c-key: #ffffff;
  --c-key-fn: #eef1f7;
  --c-key-op: #e3ecff;
  --c-key-text: #0f172a;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgb(15 23 42 / .05), 0 10px 30px -10px rgb(15 23 42 / .15);
  --shadow-sm: 0 1px 2px rgb(15 23 42 / .06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --container: 1000px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --c-bg: #0b1220;
  --c-surface: #111a2e;
  --c-surface-2: #182340;
  --c-border: #263353;
  --c-text: #e6eaf3;
  --c-text-2: #c3cbdd;
  --c-muted: #8b98b3;
  --c-accent: #3b82f6;
  --c-accent-2: #7cb0ff;
  --c-accent-soft: #1b2f5e;
  --c-success: #4ade80;
  --c-success-soft: #14321f;
  --c-danger: #f87171;
  --c-danger-soft: #3b1515;
  --c-warn: #fbbf24;
  --c-warn-soft: #3a2a08;
  --c-key: #1c2742;
  --c-key-fn: #152038;
  --c-key-op: #1b2f5e;
  --c-key-text: #e6eaf3;
  --shadow: 0 1px 2px rgb(0 0 0 / .4), 0 10px 30px -10px rgb(0 0 0 / .6);
  --shadow-sm: 0 1px 2px rgb(0 0 0 / .4);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --c-bg: #0b1220;
    --c-surface: #111a2e;
    --c-surface-2: #182340;
    --c-border: #263353;
    --c-text: #e6eaf3;
    --c-text-2: #c3cbdd;
    --c-muted: #8b98b3;
    --c-accent: #3b82f6;
    --c-accent-2: #7cb0ff;
    --c-accent-soft: #1b2f5e;
    --c-success: #4ade80;
    --c-success-soft: #14321f;
    --c-danger: #f87171;
    --c-danger-soft: #3b1515;
    --c-warn: #fbbf24;
    --c-warn-soft: #3a2a08;
    --c-key: #1c2742;
    --c-key-fn: #152038;
    --c-key-op: #1b2f5e;
    --c-key-text: #e6eaf3;
    --shadow: 0 1px 2px rgb(0 0 0 / .4), 0 10px 30px -10px rgb(0 0 0 / .6);
    --shadow-sm: 0 1px 2px rgb(0 0 0 / .4);
  }
}

/* Reset / base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; }
a { color: var(--c-accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--c-accent-2); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .5em; font-weight: 600; letter-spacing: -.005em; }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.25rem); }
h2 { font-size: clamp(1.3rem, 1.1rem + .9vw, 1.6rem); }
h3 { font-size: 1.125rem; }
p { margin: 0 0 1em; }
kbd { font-family: var(--font-mono); font-size: .85em; background: var(--c-surface-2); border: 1px solid var(--c-border); border-bottom-width: 2px; border-radius: 6px; padding: .05em .4em; }
code { font-family: var(--font-mono); font-size: .92em; background: var(--c-surface-2); padding: .1em .35em; border-radius: 5px; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(1px,1px,1px,1px); white-space: nowrap; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(16px, 4vw, 28px); }
.icon { width: 1.25em; height: 1.25em; flex: none; vertical-align: -.25em; }

.skip-link { position: absolute; left: 8px; top: -60px; z-index: 100; background: var(--c-accent); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { top: 8px; }

/* Header */
.site-header { background: var(--c-surface); border-bottom: 1px solid var(--c-border); position: relative; z-index: 20; }
.site-header__inner { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.site-logo { display: inline-flex; align-items: center; gap: 8px; color: var(--c-text); text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -.01em; }
.site-logo__icon { width: 30px; height: 30px; color: var(--c-accent); }
.site-logo__img { height: 36px; width: auto; }
.site-logo__text strong { color: var(--c-accent); font-weight: 800; }
.site-nav { margin-left: auto; }
.site-nav .menu { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.site-nav a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--c-text-2); text-decoration: none; font-weight: 500; font-size: .95rem; }
.site-nav a:hover, .site-nav .current-menu-item > a { color: var(--c-accent); background: var(--c-accent-soft); }
.site-header__actions { display: flex; gap: 6px; align-items: center; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid transparent; background: transparent; color: var(--c-text-2); cursor: pointer; }
.icon-btn:hover { background: var(--c-surface-2); color: var(--c-text); }
.icon-btn--sm { width: 34px; height: 34px; }
.icon-btn .icon { width: 22px; height: 22px; }
.icon--moon, .icon--close { display: none; }
:root[data-theme="dark"] .icon--moon { display: block; }
:root[data-theme="dark"] .icon--sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon--moon { display: block; }
  :root:not([data-theme="light"]) .icon--sun { display: none; }
}
.site-nav-toggle { display: none; }
.site-nav-toggle[aria-expanded="true"] .icon--menu { display: none; }
.site-nav-toggle[aria-expanded="true"] .icon--close { display: block; }
@media (max-width: 767px) {
  .site-nav-toggle { display: inline-flex; }
  .site-header__actions { margin-left: auto; }
  .site-nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--c-surface); border-bottom: 1px solid var(--c-border); box-shadow: var(--shadow); padding: 8px 12px 12px; display: none; }
  .site-nav.is-open { display: block; }
  .site-nav .menu { flex-direction: column; gap: 2px; }
  .site-nav a { padding: 12px; font-size: 1.05rem; }
}

/* Footer */
.site-footer { margin-top: 64px; background: var(--c-surface); border-top: 1px solid var(--c-border); color: var(--c-text-2); font-size: .95rem; }
.site-footer__grid { display: grid; gap: 28px; padding-block: 40px 24px; grid-template-columns: 1fr; }
@media (min-width: 720px) {
  .site-footer__grid--2 { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid--3 { grid-template-columns: repeat(3, 1fr); }
  .site-footer__grid--4 { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid--wide.site-footer__grid--2 { grid-template-columns: 1.4fr 1fr; }
  .site-footer__grid--wide.site-footer__grid--3 { grid-template-columns: 1.4fr 1fr 1fr; }
}
@media (min-width: 960px) {
  .site-footer__grid--4 { grid-template-columns: repeat(4, 1fr); }
  .site-footer__grid--wide.site-footer__grid--4 { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.site-footer__brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--c-text); font-size: 1.05rem; }
.site-footer__title { font-weight: 700; color: var(--c-text); margin-bottom: 8px; }
.site-footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer__list a { color: var(--c-text-2); text-decoration: none; }
.site-footer__list a:hover { color: var(--c-accent); text-decoration: underline; }
.site-footer__content > :first-child { margin-top: 0; }
.site-footer__content > :last-child { margin-bottom: 0; }
.site-footer__content p { margin: 0 0 8px; }
.site-footer__content ul, .site-footer__content ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer__content a { color: var(--c-text-2); text-decoration: none; }
.site-footer__content a:hover { color: var(--c-accent); text-decoration: underline; }
.site-footer__bottom { border-top: 1px solid var(--c-border); padding-block: 16px; font-size: .85rem; color: var(--c-muted); }
.site-footer__bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; }
.site-footer__bottom p { margin: 0; }
.site-footer__bottom a { color: var(--c-text-2); }
.site-footer__bottom-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.site-footer__bottom-links a { color: var(--c-muted); text-decoration: none; }
.site-footer__bottom-links a:hover { color: var(--c-accent); text-decoration: underline; }

/* Home hero */
.home-hero { padding-block: clamp(24px, 4vw, 48px) 16px; }
.home-hero__grid { display: grid; gap: 28px; align-items: start; }
@media (min-width: 960px) { .home-hero__grid { grid-template-columns: minmax(0, 1fr) 440px; gap: 44px; } }
.home-hero__title { margin-bottom: .6em; }
.home-hero__intro { color: var(--c-text-2); font-size: 1.05rem; }
.home-hero__intro p:last-child { margin-bottom: 0; }
.home-hero__chips { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px; background: var(--c-surface); border: 1px solid var(--c-border); color: var(--c-text-2); text-decoration: none; font-size: .92rem; font-weight: 500; }
.chip:hover { border-color: var(--c-accent); color: var(--c-accent); }
.chip__count { background: var(--c-surface-2); border-radius: 999px; padding: 0 8px; font-size: .8rem; }
.home-hero__calc { min-width: 0; }

/* Sections */
.section-title { margin-top: 1.5em; }
.section-lead { color: var(--c-text-2); margin-top: -.25em; }
.home-tools { padding-block: 40px 8px; }
.home-content { padding-block: 24px 0; }

/* Tool grid / cards */
.tool-groups { display: grid; gap: 28px; }
.tool-group__title { font-size: 1.1rem; margin-bottom: 10px; }
.tool-group__title a { color: var(--c-text); text-decoration: none; }
.tool-group__title a:hover { color: var(--c-accent); }
.tool-group__more { display: inline-block; margin-top: 10px; font-size: .92rem; }
.tool-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.tool-grid--archive { margin-top: 20px; }
.tool-card { display: flex; flex-direction: column; gap: 6px; padding: 16px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-sm); color: var(--c-text); text-decoration: none; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s, border-color .15s; }
.tool-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--c-accent); color: var(--c-text); }
.tool-card__title { font-weight: 600; line-height: 1.35; }
.tool-card__desc { font-size: .88rem; color: var(--c-muted); line-height: 1.45; }
.tool-card__badge { margin-top: auto; align-self: flex-start; font-size: .74rem; font-weight: 600; color: var(--c-success); background: var(--c-success-soft); padding: 2px 8px; border-radius: 999px; }

/* Article / prose */
.entry-header { padding-top: 20px; }
.entry-header--center { text-align: center; padding-top: 48px; }
.entry-title { margin-bottom: .4em; }
.entry-lead { color: var(--c-text-2); font-size: 1.05rem; }
.entry-header--center .entry-lead { margin-inline: auto; }
.error-code { font-size: 4rem; font-weight: 800; color: var(--c-accent); margin: 0; line-height: 1; letter-spacing: -.04em; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: .88rem; color: var(--c-muted); margin: 0 0 16px; }
.post-meta a { color: var(--c-text-2); text-decoration: none; font-weight: 500; }
.post-meta__icon { width: 1.05em; height: 1.05em; }
.post-meta__sep { margin-inline: 4px; }
.prose { font-size: 1.02rem; }
.prose > :first-child { margin-top: 0; }
.prose h2 { margin-top: 2em; padding-top: .2em; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.prose li { margin-bottom: .35em; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 1.4em; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--c-border); padding: 8px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--c-surface-2); font-weight: 600; }
.prose blockquote { margin: 1.2em 0; padding: 12px 18px; border-left: 4px solid var(--c-accent); background: var(--c-surface); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--c-text-2); }
.prose img { border-radius: var(--radius-sm); }
.prose .callout, .callout { padding: 14px 18px; border-radius: var(--radius-sm); background: var(--c-accent-soft); border: 1px solid transparent; margin: 1.2em 0; }
.callout--warn { background: var(--c-warn-soft); }
.callout p:last-child { margin-bottom: 0; }
.prose .math, .math { font-family: var(--font-mono); font-size: .95em; }
.prose sup, .prose sub { line-height: 0; }

/* Breadcrumbs */
.breadcrumbs { font-size: .86rem; color: var(--c-muted); padding-top: 18px; }
.breadcrumbs__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 6px; }
.breadcrumbs__item + .breadcrumbs__item::before { content: "›"; margin-right: 6px; color: var(--c-muted); }
.breadcrumbs a { color: var(--c-text-2); text-decoration: none; }
.breadcrumbs a:hover { color: var(--c-accent); }

/* FAQ */
.faq { margin-top: 40px; }
.faq__list { display: grid; gap: 8px; }
.faq__item { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 14px; overflow: hidden; transition: border-color .15s, box-shadow .15s; }
.faq__item:hover, .faq__item[open] { border-color: var(--c-accent); box-shadow: 0 1px 0 var(--c-accent-soft); }
.faq__q { display: flex; align-items: center; gap: 12px; padding: 12px 16px; min-height: 52px; cursor: pointer; list-style: none; user-select: none; }
.faq__q::-webkit-details-marker { display: none; }
.faq__q:focus-visible { outline: 2px solid var(--c-accent); outline-offset: -2px; }
.faq .faq__title, .prose .faq .faq__title { margin: 0; padding: 0; flex: 1; font-size: 1rem; font-weight: 600; line-height: 1.4; }
.faq__icon { flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid var(--c-border); color: var(--c-muted); position: relative; transition: transform .2s, border-color .15s, color .15s; }
.faq__icon::before, .faq__icon::after { content: ""; position: absolute; left: 50%; top: 50%; background: currentColor; border-radius: 1px; transform: translate(-50%, -50%); }
.faq__icon::before { width: 10px; height: 1.5px; }
.faq__icon::after { width: 1.5px; height: 10px; transition: opacity .15s; }
.faq__chevron { flex: 0 0 16px; width: 16px; height: 16px; position: relative; color: var(--c-muted); transition: transform .2s; }
.faq__chevron::before { content: ""; position: absolute; left: 50%; top: 40%; width: 8px; height: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translate(-50%, -50%) rotate(45deg); }
.faq__item[open] .faq__icon { border-color: var(--c-accent); color: var(--c-accent); transform: rotate(180deg); }
.faq__item[open] .faq__icon::after { opacity: 0; }
.faq__item[open] .faq__chevron { transform: rotate(180deg); color: var(--c-accent); }
.faq__a { color: var(--c-text-2); font-size: .95rem; padding: 0 16px 14px 50px; animation: faq-in .18s ease-out; }
.faq__a p:last-child { margin-bottom: 0; }
@keyframes faq-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@media (max-width: 600px) { .faq__q { padding: 10px 12px; gap: 10px; min-height: 48px; } .faq__a { padding: 0 12px 12px 44px; } }
@media (prefers-reduced-motion: reduce) { .faq__a { animation: none; } .faq__icon, .faq__chevron { transition: none; } }

/* Author box / related */
.author-box { display: flex; gap: 14px; align-items: flex-start; margin-top: 40px; padding: 16px 18px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-sm); }
.author-box__avatar img { border-radius: 50%; display: block; }
.author-box__name { margin: 0 0 .15em; font-weight: 600; }
.author-box__role { margin: 0 0 .35em; font-size: .88rem; color: var(--c-accent); font-weight: 500; }
.author-box__more { display: inline-block; margin-top: 6px; font-size: .9rem; font-weight: 600; text-decoration: none; }
.author-box__bio { margin: 0; font-size: .93rem; color: var(--c-text-2); }
.related { margin-top: 40px; }
.related__heading { margin-bottom: 14px; }

/* Archive */
.archive { padding-bottom: 24px; }
.subcats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.pagination { margin-top: 28px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 6px; }
.nav-links .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--c-border); background: var(--c-surface); text-decoration: none; color: var(--c-text-2); }
.nav-links .page-numbers.current { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.search-form { display: flex; gap: 8px; max-width: 520px; margin: 16px 0; }
.entry-header--center .search-form { margin-inline: auto; }
.search-form__input { flex: 1; min-width: 0; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--c-border); background: var(--c-surface); color: var(--c-text); font: inherit; }
.search-form__submit { width: 46px; border-radius: 10px; border: 0; background: var(--c-accent); color: #fff; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }

/* Utilities */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--c-border); background: var(--c-surface); color: var(--c-text); font-weight: 600; cursor: pointer; text-decoration: none; transition: background .15s, transform .06s; }
.btn:hover { background: var(--c-surface-2); }
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.btn--primary:hover { background: var(--c-accent-2); border-color: var(--c-accent-2); }
.btn--ghost { background: transparent; }
.btn--sm { padding: 6px 12px; font-size: .9rem; }

/* Contact form */
.contact-form-wrap { margin: 28px 0 8px; padding: 22px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); box-shadow: var(--shadow-sm); scroll-margin-top: 20px; }
.prose .contact-form-wrap h2 { margin-top: 0; padding-top: 0; }
.contact-form__grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .contact-form__grid { grid-template-columns: 1fr 1fr; } .contact-field--full { grid-column: 1 / -1; } }
.contact-field { display: grid; gap: 6px; }
.contact-field__label { font-size: .92rem; font-weight: 500; color: var(--c-text-2); }
.contact-field__label abbr { color: var(--c-danger); text-decoration: none; }
.contact-field__label small { color: var(--c-muted); font-weight: 400; }
.contact-field input, .contact-field select, .contact-field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--c-border); border-radius: 10px; background: var(--c-bg); color: var(--c-text); font: inherit; font-size: 1rem; }
.contact-field textarea { resize: vertical; min-height: 140px; line-height: 1.55; }
.contact-field input:focus, .contact-field select:focus, .contact-field textarea:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 3px var(--c-accent-soft); }
.contact-consent { display: flex; gap: 10px; align-items: flex-start; margin: 16px 0 4px; font-size: .92rem; color: var(--c-text-2); line-height: 1.5; }
.contact-consent input { margin-top: 3px; width: 18px; height: 18px; flex: none; accent-color: var(--c-accent); }
.contact-form__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-top: 16px; }
.contact-form__note { font-size: .9rem; color: var(--c-muted); }
.contact-form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: .95rem; }
.contact-alert--ok { background: var(--c-success-soft); color: var(--c-success); }
.contact-alert--err { background: var(--c-danger-soft); color: var(--c-danger); }

/* Compact tool directory (home, 404) */
.home-tools__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; margin-bottom: 16px; }
.home-tools__head .section-title { margin: 0; }
.home-tools__head .section-lead { margin: 0; }
.tool-dir { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); align-items: start; }
.tool-dir__card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 14px; padding: 14px 16px 10px; }
.tool-dir__head { display: flex; align-items: center; gap: 10px; padding-bottom: 10px; margin-bottom: 4px; border-bottom: 1px solid var(--c-border); }
.tool-dir__icon { flex: none; width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; background: var(--c-accent-soft); color: var(--c-accent); font: 700 .95rem var(--font-mono); }
.tool-dir .tool-dir__title { flex: 1; margin: 0; font-size: 1rem; font-weight: 600; }
.tool-dir__title a { color: var(--c-text); text-decoration: none; }
.tool-dir__title a:hover { color: var(--c-accent); }
.tool-dir__count { font-size: .78rem; font-weight: 600; color: var(--c-muted); background: var(--c-surface-2); border-radius: 999px; padding: 1px 8px; }
.tool-dir__list { list-style: none; margin: 0; padding: 0; }
.tool-dir__list li { border-bottom: 1px dashed var(--c-border); }
.tool-dir__list li:last-child { border-bottom: 0; }
.tool-dir__list a { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 7px 2px; font-size: .93rem; color: var(--c-text-2); text-decoration: none; }
.tool-dir__list a::after { content: "›"; color: var(--c-muted); font-size: 1.1rem; line-height: 1; transition: transform .15s, color .15s; }
.tool-dir__list a:hover { color: var(--c-accent); }
.tool-dir__list a:hover::after { color: var(--c-accent); transform: translateX(2px); }
.tool-dir__more { border-top: 1px dashed var(--c-border); }
.tool-dir__more > summary { list-style: none; cursor: pointer; padding: 8px 2px 4px; font-size: .88rem; font-weight: 600; color: var(--c-accent); }
.tool-dir__more > summary::-webkit-details-marker { display: none; }
.tool-dir__more > summary::after { content: " ▾"; }
.tool-dir__more[open] > summary { padding-bottom: 6px; }
.tool-dir__more[open] > summary::after { content: " ▴"; }
@media (max-width: 600px) {
  .tool-dir { gap: 10px; }
  .tool-dir__card { padding: 12px 14px 8px; }
  .tool-dir__head { padding-bottom: 8px; }
  .tool-dir__list a { padding: 6px 2px; font-size: .92rem; }
}

/* Justified body text (articles, intros, FAQ answers); tables stay left-aligned */
.prose p, .prose li, .entry-content p, .entry-content li,
.entry-lead p, .home-hero__intro p, .faq__a p {
  text-align: justify;
  text-justify: inter-word;
}
.prose table, .prose table p, .prose table li,
.entry-content table, .entry-content table p, .entry-content table li,
.prose .contact-form-wrap, .prose .contact-form-wrap p { text-align: left; }

/* Avatar (local, no Gravatar) */
.avatar { border-radius: 50%; display: block; object-fit: cover; }
.avatar--initials { display: grid; place-items: center; background: linear-gradient(135deg, var(--c-accent), #7c3aed); color: #fff; font-weight: 600; letter-spacing: .02em; user-select: none; }

/* Author profile page */
.author-hero { display: flex; gap: 24px; align-items: flex-start; margin: 8px 0 20px; padding: 24px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); }
.author-hero__avatar { flex: none; }
.author-hero__body { min-width: 0; }
.author-hero__eyebrow { margin: 0 0 4px; font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--c-muted); }
.author-hero__name { margin: 0 0 4px; }
.author-hero__role { margin: 0 0 10px; font-weight: 500; color: var(--c-accent); }
.author-hero__bio { margin: 0 0 14px; color: var(--c-text-2); }
.author-hero__links { display: flex; flex-wrap: wrap; gap: 8px; }
.author-stats { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.author-stats li { padding: 14px 16px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 12px; display: grid; gap: 2px; }
.author-stats strong { font-size: 1.35rem; font-weight: 600; color: var(--c-text); line-height: 1.2; }
.author-stats span { font-size: .86rem; color: var(--c-muted); }
.author-about { margin-bottom: 28px; }
.author-about h2:first-child { margin-top: 0; padding-top: 0; }
.prose .author-skills { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.prose .author-skills li { margin: 0; padding: 5px 12px; border-radius: 999px; background: var(--c-accent-soft); color: var(--c-accent-2); font-size: .9rem; font-weight: 500; text-align: left; }
.author-works { margin-bottom: 28px; }
.author-works .section-lead { margin-bottom: 14px; }
.author-works__list a { gap: 12px; }
.author-works__list a::after { display: none; }
.author-works__name { min-width: 0; }
.author-works__date { flex: none; font-size: .78rem; color: var(--c-muted); font-variant-numeric: tabular-nums; }
.author-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 18px 20px; border-radius: var(--radius); background: var(--c-accent-soft); }
.author-cta__title { margin: 0 0 2px; font-weight: 600; color: var(--c-text); }
.author-cta__text { margin: 0; font-size: .93rem; color: var(--c-text-2); }
@media (max-width: 600px) {
  .author-hero { flex-direction: column; align-items: center; text-align: center; padding: 20px 16px; }
  .author-hero__links { justify-content: center; }
  .author-hero .avatar { width: 88px !important; height: 88px !important; font-size: 34px !important; }
  .author-stats { grid-template-columns: 1fr 1fr; }
}