/* ─── BASE.CSS — Layout, navigation, footer, components ────────── */

/* ═══ Reset ════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ═══ Accessibility ════════════════════════════════════════════ */
.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;
}
.sr-only:focus {
  position: fixed; top: 1rem; left: 1rem;
  width: auto; height: auto;
  padding: .5rem 1rem;
  background: var(--accent); color: var(--text-inverted);
  border-radius: var(--radius); font-weight: 600;
  clip: auto; white-space: normal; z-index: 9999;
}

.skip-link {
  position: absolute; top: -100%; left: 1rem;
  padding: .5rem 1rem;
  background: var(--accent); color: var(--text-inverted);
  border-radius: var(--radius); font-weight: 600;
  font-size: .875rem; z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: 1rem; }

/* ═══ Reading progress bar ══════════════════════════════════════ */
#reading-progress {
  position: fixed; top: 0; left: 0; z-index: 200;
  height: 2px; width: 0%;
  background: var(--accent);
  transition: width 100ms linear;
  pointer-events: none;
}

/* ═══ Layout container ══════════════════════════════════════════ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 640px)  { .container { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-inline: 2rem; } }

.content-wrap {
  max-width: var(--max-w-content);
  margin-inline: auto;
}

/* ═══ Navigation ════════════════════════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-md), box-shadow var(--transition-md);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 20px rgba(0,0,0,.12);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 640px)  { .nav-inner { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .nav-inner { padding-inline: 2rem; } }

.nav-logo {
  display: flex;
  align-items: center;
  gap: .625rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--text-heading);
  letter-spacing: -.01em;
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--accent); }

.nav-logo-mark {
  width: 32px; height: 32px;
  background: var(--accent);
  color: var(--text-inverted);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body);
  font-size: .6875rem; font-weight: 800;
  letter-spacing: -.02em; flex-shrink: 0;
}

.nav-links {
  display: none;
  align-items: center;
  gap: .25rem;
}
@media (min-width: 768px) { .nav-links { display: flex; } }

.nav-link {
  padding: .4375rem .875rem;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--text); background: var(--bg-elevated); }
.nav-link.active { color: var(--accent); background: var(--accent-faint); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: .625rem;
}

/* Theme toggle */
.theme-toggle {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-mid); background: var(--bg-elevated); }
.theme-toggle svg { width: 16px; height: 16px; }
/* Dark mode (default): show sun (click = go light); light mode: show moon (click = go dark) */
.icon-sun  { display: block; }
.icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Nav right-side controls wrapper */
.nav-controls {
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* Mobile menu toggle */
.mobile-nav-toggle {
  display: flex;
  align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius);
  color: var(--text-2);
  border: 1px solid var(--border);
  background: transparent;
  transition: color var(--transition), border-color var(--transition);
}
.mobile-nav-toggle:hover { color: var(--text); border-color: var(--border-mid); }
.mobile-nav-toggle svg { width: 18px; height: 18px; }
@media (min-width: 768px) { .mobile-nav-toggle { display: none; } }

/* Mobile drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem 1.25rem;
  z-index: 99;
}
.mobile-nav.is-open { display: block; }
.mobile-nav-link {
  display: block;
  padding: .75rem 1rem;
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition), background var(--transition);
}
.mobile-nav-link:hover { color: var(--text); background: var(--bg-elevated); }
.mobile-nav-link.active { color: var(--accent); background: var(--accent-faint); }

/* ═══ Main ══════════════════════════════════════════════════════ */
main { flex: 1; }

/* ═══ Footer ════════════════════════════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: auto;
}

.footer-inner {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 640px)  { .footer-inner { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .footer-inner { padding-inline: 2rem; } }

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: .625rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-heading);
  margin-bottom: .875rem;
}
.footer-logo:hover { color: var(--accent); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem; }
}

.footer-brand p {
  font-size: .875rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-top: .75rem;
  max-width: 26ch;
}

.footer-nav-col h3 {
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-3);
  margin-bottom: .875rem;
}
.footer-nav-col ul { display: flex; flex-direction: column; gap: .5rem; }
.footer-nav-col a {
  font-size: .875rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer-nav-col a:hover { color: var(--text); }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1rem;
}
.footer-social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-2);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.footer-social a:hover { color: var(--text); border-color: var(--border-mid); background: var(--bg-elevated); }
.footer-social a svg { width: 16px; height: 16px; }
.footer-social-disabled { opacity: .35; pointer-events: none; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  align-items: flex-start;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: .8125rem;
  color: var(--text-3);
}
@media (min-width: 640px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .375rem; }
}
.footer-credentials {
  width: 100%;
  font-size: .6875rem;
  color: var(--text-3);
  letter-spacing: .02em;
}
@media (min-width: 640px) { .footer-credentials { text-align: center; } }

/* ═══ Buttons ═══════════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .625rem 1.25rem;
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-accent {
  background: var(--accent);
  color: var(--text-inverted);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-mid);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border-color: transparent;
  padding-inline: .75rem;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-elevated); }

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-sm { padding: .4375rem .875rem; font-size: .8125rem; }
.btn-lg { padding: .8125rem 1.75rem; font-size: 1rem; }

/* ═══ Cards ═════════════════════════════════════════════════════ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color var(--transition-md);
}
.card:hover { border-color: var(--border-mid); }

.card-link { display: block; }
.card-link:hover .card { border-color: var(--accent); }

/* ═══ Badge / chip ══════════════════════════════════════════════ */
.badge {
  display: inline-flex; align-items: center;
  padding: .2rem .625rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .02em;
  background: var(--bg-elevated);
  color: var(--text-2);
  border: 1px solid var(--border);
  transition: background var(--transition), color var(--transition);
}
.badge-accent {
  background: var(--accent-faint);
  color: var(--accent);
  border-color: transparent;
}
.badge:hover { background: var(--bg-elevated); color: var(--text); }
.badge-accent:hover { background: var(--accent-faint); color: var(--accent); }

/* ═══ Section headings ══════════════════════════════════════════ */
.section-label {
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--text-3);
  margin-bottom: .75rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.2;
  letter-spacing: -.02em;
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 52ch;
}

/* ═══ Divider ═══════════════════════════════════════════════════ */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-3xl) 0;
}

/* ═══ Page header (inner pages) ════════════════════════════════ */
.page-header {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}
.page-header-eyebrow {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--accent);
  margin-bottom: .875rem;
}
.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -.025em;
  line-height: 1.15;
}
.page-header p {
  margin-top: .875rem;
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 52ch;
}
.page-header-byline {
  margin-top: .75rem !important;
  font-size: .8125rem !important;
  color: var(--text-3) !important;
}
.page-header-byline a { color: var(--text-2); font-weight: 500; }
.page-header-byline a:hover { color: var(--accent); }

/* ═══ Hero ══════════════════════════════════════════════════════ */
.hero {
  padding: 5rem 0 4.5rem;
  border-bottom: 1px solid var(--border);
}
@media (min-width: 768px) { .hero { padding: 6rem 0 5.5rem; } }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .15em;
  color: var(--text-3);
  margin-bottom: 1.5rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.1;
  letter-spacing: -.03em;
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-lead {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 48ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .875rem;
  margin-top: 2.25rem;
}

/* ═══ Grid utilities ════════════════════════════════════════════ */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ═══ Section spacing ═══════════════════════════════════════════ */
.section { padding: 4rem 0; }
.section-lg { padding: 5.5rem 0; }
@media (min-width: 768px) {
  .section { padding: 5rem 0; }
  .section-lg { padding: 7rem 0; }
}

/* ═══ Text utilities ════════════════════════════════════════════ */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-2); }
.text-subtle { color: var(--text-3); }
.font-heading { font-family: var(--font-heading); }

/* ═══ Tag list ══════════════════════════════════════════════════ */
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; }

/* ═══ Empty state ═══════════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--text-2);
}
.empty-state h3 { font-size: 1.125rem; font-weight: 600; color: var(--text); margin-bottom: .5rem; }

/* ═══ HTMX ══════════════════════════════════════════════════════ */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }
.htmx-swapping { opacity: 0; transition: opacity 150ms ease; }

/* ═══ Form elements ═════════════════════════════════════════════ */
.form-group { display: flex; flex-direction: column; gap: .375rem; }

.form-label {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: .625rem .875rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  color: var(--text);
  font-size: .9375rem;
  font-family: var(--font-body);
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus { border-color: var(--accent); }
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-3); }
.form-textarea { resize: vertical; min-height: 100px; }

/* ═══ Code blocks (non-prose) ═══════════════════════════════════ */
pre, .code-block {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .875rem;
  line-height: 1.65;
  color: var(--text);
}

code {
  font-family: var(--font-mono);
  font-size: .875em;
  background: var(--bg-elevated);
  padding: .1em .4em;
  border-radius: var(--radius-sm);
  color: var(--text);
}
pre code { background: none; padding: 0; font-size: 1em; }

/* ═══ 404 page ══════════════════════════════════════════════════ */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem;
  min-height: 60vh;
}
.error-page .error-code {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 15vw, 9rem);
  font-weight: 700;
  color: var(--border-strong);
  line-height: 1;
  letter-spacing: -.05em;
  margin-bottom: 1rem;
}
.error-page h1 { font-size: 1.5rem; font-weight: 700; color: var(--text-heading); margin-bottom: .75rem; }
.error-page p  { color: var(--text-2); max-width: 38ch; line-height: 1.7; margin-bottom: 2rem; }

/* ═══ Home page ══════════════════════════════════════════════════ */
.home-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 480px;
  margin-top: 3rem;
}
@media (min-width: 480px) { .home-stats { grid-template-columns: repeat(4, 1fr); max-width: 600px; } }

.home-stat {
  padding: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.home-stat-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1;
}
.home-stat-label {
  font-size: .6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
}

.home-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.home-see-all {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color var(--transition);
  white-space: nowrap;
}
.home-see-all:hover { color: var(--accent); }

.home-post-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .625rem;
  transition: border-color var(--transition), transform var(--transition-md);
}
.home-post-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.home-post-cat {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
}
.home-post-cat:hover { color: var(--accent-hover); }
.home-post-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-heading);
  margin: 0;
}
.home-post-card h3 a { color: inherit; }
.home-post-card h3 a:hover { color: var(--accent); }
.home-post-excerpt { font-size: .875rem; color: var(--text-2); line-height: 1.6; flex: 1; }
.home-post-meta {
  display: flex;
  align-items: center;
  gap: .375rem;
  font-size: .75rem;
  color: var(--text-3);
  margin-top: .25rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border);
}

.home-tool-card {
  display: flex;
  align-items: flex-start;
  gap: .875rem;
  padding: 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), background var(--transition), transform var(--transition-md);
  color: inherit;
}
.home-tool-card:hover { border-color: var(--accent); background: var(--bg-surface); transform: translateY(-2px); }
.home-tool-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: .125rem; }
.home-tool-card h3 { font-size: .9375rem; font-weight: 600; color: var(--text-heading); margin-bottom: .25rem; }
.home-tool-card p { font-size: .8125rem; color: var(--text-2); line-height: 1.5; }
.home-tool-arrow {
  color: var(--text-3);
  flex-shrink: 0;
  margin-top: .25rem;
  margin-left: auto;
  transition: color var(--transition), transform var(--transition);
}
.home-tool-card:hover .home-tool-arrow { color: var(--accent); transform: translateX(3px); }

.home-about {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding: 2.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}
@media (max-width: 640px) { .home-about { flex-direction: column; gap: 1.5rem; padding: 1.5rem; } }

.home-about-avatar {
  width: 72px; height: 72px;
  flex-shrink: 0;
  background: var(--accent);
  color: var(--text-inverted);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.home-about-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.3;
  margin: .5rem 0 1rem;
}
.home-about-body p { font-size: .9375rem; color: var(--text-2); line-height: 1.75; }
.home-about-body strong { color: var(--text); font-weight: 600; }

/* ═══ About page ═════════════════════════════════════════════════ */
.about-bio-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
@media (min-width: 768px) {
  .about-bio-grid { grid-template-columns: 280px 1fr; gap: 4rem; align-items: start; }
}

.about-avatar-wrap { display: flex; flex-direction: column; gap: 1.5rem; }

.about-avatar {
  width: 100px; height: 100px;
  background: var(--accent);
  color: var(--text-inverted);
  border-radius: var(--radius-xl);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.02em;
}

.about-facts { display: flex; flex-direction: column; gap: .875rem; }
.about-fact {
  padding: .875rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.about-fact-label { font-size: .6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); }
.about-fact-value { font-size: .9375rem; font-weight: 600; color: var(--text-heading); }
.about-fact-accent { color: var(--accent); }

.about-bio-text { display: flex; flex-direction: column; gap: 1.25rem; }
.about-bio-text p { font-size: 1.0625rem; color: var(--text-2); line-height: 1.75; }
.about-bio-text strong { color: var(--text); font-weight: 600; }

.about-skill-card {
  padding: 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}
.about-skill-card:hover { border-color: var(--border-strong); }
.about-skill-icon { font-size: 1.5rem; display: block; margin-bottom: .875rem; }
.about-skill-card h3 { font-size: 1rem; font-weight: 600; color: var(--text-heading); margin-bottom: .375rem; }
.about-skill-card p { font-size: .875rem; color: var(--text-2); line-height: 1.65; }

.about-stack-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
@media (min-width: 900px) { .about-stack-grid { grid-template-columns: repeat(4, 1fr); } }

.about-stack-col h3 {
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-3);
  padding-bottom: .625rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.about-stack-col ul { display: flex; flex-direction: column; gap: .5rem; }
.about-stack-col li { font-size: .875rem; color: var(--text-2); padding-left: .875rem; position: relative; }
.about-stack-col li::before {
  content: '';
  position: absolute;
  left: 0; top: .5em;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.about-contact { display: flex; flex-direction: column; gap: 2rem; }
@media (min-width: 640px) {
  .about-contact { flex-direction: row; align-items: center; justify-content: space-between; }
}
.about-contact-links { display: flex; gap: .875rem; flex-wrap: wrap; flex-shrink: 0; }

/* ═══ Portfolio page ═════════════════════════════════════════════ */
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══ Tools index page ═══════════════════════════════════════════ */
.tool-index-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: inherit;
  transition: border-color var(--transition), transform var(--transition-md);
}
.tool-index-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.tool-index-icon { font-size: 1.75rem; margin-bottom: .375rem; }
.tool-index-card h3 { font-size: 1rem; font-weight: 600; color: var(--text-heading); line-height: 1.3; }
.tool-index-card p { font-size: .875rem; color: var(--text-2); line-height: 1.65; flex: 1; }
.tool-index-cta {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: .5rem;
  transition: gap var(--transition);
}
.tool-index-card:hover .tool-index-cta { gap: .625rem; }