:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #1b1f24;
  --muted: #5b6472;
  --accent: #2458e6;
  --border: #e5e8ec;
  --maxw: 1200px;
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body { font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
@media (min-width: 1360px) {
  .container { padding-left: 16px; padding-right: 16px; }
}

/* Header */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; background: transparent; border-bottom: 1px solid transparent; transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
.site-header--scrolled { background: rgba(255,255,255,0.85); border-bottom: 1px solid var(--border); backdrop-filter: saturate(180%) blur(8px); box-shadow: 0 6px 18px rgba(15,23,42,0.08); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; letter-spacing: 0.2px; color: #ffffff; }
.brand--with-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; line-height: 1; }
.brand__link { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; }
.brand__link:hover { text-decoration: none; }
.brand__logo { display: block; }
.brand img { transition: filter 0.25s ease; }
.site-header:not(.site-header--scrolled) .brand img { filter: invert(1); }
.site-header--scrolled .brand img { filter: none; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 44px; height: 44px; margin-left: auto; border: 0; background: transparent; cursor: pointer; }
.nav-toggle:focus-visible { outline: 2px solid rgba(255,255,255,0.6); outline-offset: 3px; }
.nav-toggle__bar { width: 22px; height: 2px; border-radius: 1px; background: #ffffff; transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease; }
.primary-nav { display: flex; align-items: center; margin-left: 24px; }
.primary-nav ul { display: flex; align-items: center; gap: 16px; list-style: none; margin: 0; padding: 0; }
.primary-nav a { display: inline-flex; align-items: center; color: #ffffff; padding: 8px 10px; border-radius: 8px; }
.site-header--scrolled .brand { color: var(--text); }
.site-header--scrolled .nav-toggle__bar { background: var(--text); }
.site-header--scrolled .primary-nav a { color: var(--text); }
.site-header--scrolled .primary-nav a:hover { background: #f4f6f8; text-decoration: none; }
.site-header:not(.site-header--scrolled) .primary-nav a:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.site-header--menu-open .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header--menu-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header--menu-open .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Sections */
section { padding: 64px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: 0; }
.section-title { font-size: 28px; margin: 0 0 20px; }

/* Hero */
.home-hero { position: relative; display: flex; align-items: center; padding: 180px 0 96px; min-height: 55vh; background-image: url('hero-bg.svg'); background-size: cover; background-position: center; background-repeat: no-repeat; }
.home-hero::before { content: ""; position: absolute; inset: 0; background: rgba(0,0,0,0.52); pointer-events: none; }
.home-hero .container { position: relative; z-index: 1; }
.home-hero h1 { color: #ffffff; text-shadow: 0 1px 1px rgba(0,0,0,0.2); font-size: 2rem; line-height: 1.2; margin: 0 0 16px; }
.home-hero p { color: #ffffff; font-size: 18px; }
.home-hero__inner { display: flex; flex-direction: column; gap: 20px; width: 100%; max-width: 530px; align-items: flex-start; text-align: left; }
.home-hero a { color: #ffffff; font-weight: 600; text-decoration: underline; }
.home-hero a:hover { color: rgba(255,255,255,0.85); text-decoration: underline; }

@media (min-width: 1440px) {
  .primary-nav a { padding: 10px 12px; font-size: 15px; }
  .grid--asym-3 { gap: 20px; }
  .section-title { font-size: 30px; }
  .post .title { font-size: 17px; }
}
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }

/* Latest Writing */
.grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 40em) { /* ≥640px */
  .grid { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
}
@media (min-width: 60em) {
  .grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}
.post { display: flex; flex-direction: column; gap: 8px; padding: 0; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.post .title { font-weight: 600; }
.post .excerpt { color: var(--muted); font-size: 14px; }
.post .post__link { display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.post .post__image { width: 100%; height: 160px; object-fit: cover; display: block; }
.post .post__body { display: flex; flex-direction: column; gap: 6px; padding: 14px; }
.post:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(15,23,42,0.08); }
.post:hover .title { text-decoration: underline; }

/* Home: Latest Writing — mobile‑first single column, consistent spacing */
#writing .section-title { margin-bottom: 1rem; }
.writing-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.writing-column { display: contents; }
.writing-column .post .post__image { height: 14rem; }
.post--inline .post__body { padding: 1rem; }
@media (min-width: 40em) {
  .writing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
  .writing-column .post .post__image { height: 15rem; }
}
@media (min-width: 56.25em) {
  .writing-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.3fr) minmax(0, 0.85fr);
    gap: 1.5rem;
  }
  .writing-column { display: flex; flex-direction: column; gap: 1.5rem; }
  .writing-column--left .post .post__image,
  .writing-column--right .post .post__image { height: 12rem; }
  .writing-column--middle .post--feature .post__image { height: 25.9rem; object-fit: cover; }
  .writing-column--middle .post--feature .post__link { height: 100%; }
  .writing-column--middle .post--inline .post__link {
    display: grid;
    grid-template-columns: minmax(0, 0.4fr) minmax(0, 1fr);
    gap: 1rem;
    align-items: stretch;
    height: 100%;
  }
  .writing-column--middle .post--inline .post__image { height: 100%; min-height: 100%; object-fit: cover; }
  .writing-column--middle .post--inline .post__body { padding: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
}

/* How I Help */
.list { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 40em) { /* ≥640px */
  .list { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
}
@media (min-width: 60em) {
  .list { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}
.list .item { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.item__media { width: 100%; height: 160px; object-fit: cover; display: block; }
.item__body { display: flex; flex-direction: column; gap: 8px; padding: 20px; }
.item__body h3 { margin: 0; font-size: 18px; }
.item__body p { margin: 0; color: var(--muted); font-size: 14px; }
@media (min-width: 60em) {
  .item__media { height: 180px; }
}

/* Footer */
footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); }

/* Responsive */
@media (max-width: 768px) {
  .nav { height: 60px; }
  .nav-toggle { display: flex; }
  .primary-nav { position: fixed; inset: 72px 20px auto; display: none; flex-direction: column; align-items: flex-start; margin-left: 0; padding: 18px; border-radius: 16px; background: rgba(15,23,42,0.92); backdrop-filter: blur(12px); box-shadow: 0 24px 48px rgba(15,23,42,0.25); }
  .primary-nav ul { width: 100%; flex-direction: column; align-items: flex-start; gap: 4px; }
  .primary-nav li { width: 100%; }
  .primary-nav a { width: 100%; padding: 12px 14px; font-size: 16px; }
  .site-header--menu-open .primary-nav { display: flex; }
  .site-header--menu-open .primary-nav a { color: #ffffff; }
  .site-header--menu-open .primary-nav a:hover { background: rgba(255,255,255,0.08); }
  .site-header--scrolled.site-header--menu-open .primary-nav { background: rgba(255,255,255,0.95); box-shadow: 0 24px 48px rgba(15,23,42,0.15); }
  .site-header--scrolled.site-header--menu-open .primary-nav a { color: var(--text); }
  .site-header--scrolled.site-header--menu-open .primary-nav a:hover { background: #f4f6f8; }
}
@media (max-width: 600px) {
  .home-hero { padding: 100px 0 64px; }
}

/* Hero type scale (mobile-first) */
@media (min-width: 48em) { .home-hero h1 { font-size: 2.25rem; } }
@media (min-width: 64em) { .home-hero h1 { font-size: 2.5rem; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 14px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease; }
.btn:focus-visible { outline: 2px solid #9db4ff; outline-offset: 2px; }
.btn--primary { background: #2458e6; color: #fff; }
.btn--primary:hover { background: #1f4dcc; }
.btn--secondary { background: #111827; color: #fff; }
.btn--secondary:hover { background: #0b1320; }
.btn--outline { background: #fff; color: #1b1f24; border-color: #cfd6de; }
.btn--outline:hover { background: #f7f9fb; border-color: #bfc8d3; }
.btn--ghost { background: transparent; color: #1b1f24; }
.btn--ghost:hover { background: #f4f6f8; }
.btn--danger { background: #e02424; color: #fff; }
.btn--danger:hover { background: #c01f1f; }
.btn--success { background: #16a34a; color: #fff; }
.btn--success:hover { background: #138a3f; }
.btn--link { background: transparent; color: #2458e6; text-decoration: underline; padding: 0; border: 0; }
.btn--link:hover { color: #1f4dcc; }
.btn--small { padding: 6px 10px; border-radius: 8px; font-size: 14px; }
.btn--large { padding: 14px 18px; border-radius: 12px; font-size: 18px; }
.btn--icon { width: 40px; height: 40px; padding: 0; border-radius: 10px; }
.btn--block { display: flex; width: 100%; }

/* Latest Writing Card */
.lw-card { width: 300px; min-width: 300px; display: flex; flex-direction: column; gap: 10px; background: #ffffff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.lw-card__image { width: 100%; height: 160px; object-fit: cover; display: block; }
.lw-card__body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.lw-card__title { font-weight: 600; color: var(--text); text-decoration: none; }
.lw-card__title:hover { text-decoration: underline; }
.lw-card__desc { color: #5b6472; font-size: 14px; line-height: 1.5; }
.lw-card__meta { color: #6b7280; font-size: 12px; }

/* DS Card utility (from Figma specs) */
.ds-card { display: flex; width: 302px; min-width: 302px; flex-direction: column; align-items: flex-start; gap: 10px; }
.ds-card--panel { padding: 16px; background: #ffffff; border: 1px solid var(--border); border-radius: 12px; }

/* Design System: Asymmetric Latest Writing grids */
.ds-container { max-width: none; padding: 0 50px; overflow-x: auto; }
.preview { width: 100%; }
.preview[style] { /* ensure inline width doesn't override */ width: 100% !important; }
.grid--asym-3 { display: grid; grid-template-columns: 320px 680px 320px; gap: 16px; grid-auto-flow: dense; }
.grid--asym-3 > .post:nth-child(1) { width: 320px; }
.grid--asym-3 > .post:nth-child(2) { width: 680px; }
.grid--asym-3 > .post:nth-child(3) { width: 320px; }

.grid--asym-3.grid--2rows { grid-auto-rows: auto; }
.grid--asym-3.grid--2rows > .post { width: auto; }

/* Feature tall post spanning two rows */
.post--feature-tall { grid-column: 2; grid-row: 1 / span 2; display: flex; flex-direction: column; }
.post--feature-tall .post__link { display: flex; flex-direction: column; height: 100%; }
.post--feature-tall .post__image { height: 100%; object-fit: cover; }

/* Normalize Latest Writing breakpoints */
@media (max-width: 1100px) {
  .grid--asym-3 { grid-template-columns: 1fr 1fr; gap: 16px; }
  .post--feature-tall { grid-column: auto; grid-row: auto; }
  .post--feature-tall .post__image { height: 260px; }
}
@media (max-width: 700px) {
  .grid--asym-3 { grid-template-columns: 1fr; gap: 14px; }
  .post .post__image { height: 220px; }
}
/* Large-screen refinements (<= scope up to 1400 baseline) */
@media (min-width: 1024px) {
  .list { gap: 24px; }
}

/* Latest Writing responsiveness (finalized above) */
/* Progressive narrowing so 3-cols hold longer */
@media (max-width: 1280px) {
  .grid--asym-3 { grid-template-columns: 300px 1fr 300px; }
}
@media (max-width: 1180px) {
  .grid--asym-3 { grid-template-columns: 280px 1fr 280px; }
}

/* People: stacked by default; 2 columns at ≥48em */

/* Article Styles */
.article-body h2,
.article-body h3,
.in-this-article h3,
.ship-it-checklist h4,
.example h4 {
  font-family: Inter, sans-serif;
}

.article-body p,
.article-body ul,
.example p {
  font-family: Georgia, serif;
}

.article-body h2 {
  font-size: 24px;
  margin-top: 40px;
}

.article-body h3 {
  font-size: 22px;
  margin-top: 48px;
  margin-bottom: 4px;
}

.article-body p {
  font-size: 16px;
  line-height: 1.7;
}

.article-body ul {
  list-style-type: disc;
  padding-left: 20px;
}

.article-body a {
  color: var(--accent);
}

.in-this-article {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: #f8f9fa;
}

.in-this-article h3 {
  margin-top: 0;
  font-size: 16px;
  font-weight: 600;
}

.in-this-article ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.article-body p em {
  color: var(--muted);
  display: block;
  margin-bottom: 16px;
}

.ship-it-checklist,
.example {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: #f8f9fa;
}

.ship-it-checklist h4,
.example h4 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 16px;
  font-weight: 600;
}

.ship-it-checklist ul {
  list-style-type: disc;
  padding-left: 20px;
  margin: 0;
}

.ship-it-checklist li {
  margin-bottom: 8px;
}

.example p {
  font-style: italic;
  color: #5b6472;
  border-left: 3px solid #e5e8ec;
  padding-left: 16px;
}

/* Meta + image rhythm */
.article-meta {
  color: #6b7280;
  font-size: 14px;
  margin-bottom: 8px;
}
.article-body > img:first-of-type {
  margin-top: 8px;
  margin-bottom: 8px;
  border-radius: 12px;
  border: 1px solid var(--border);
}


/* Article Typography Overrides (final) */
.article-body {
  color: var(--text);
}
.article-body header h1 {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-weight: 700;
  letter-spacing: -0.2px;
}
.article-body h2,
.article-body h3 {
  font-family: Georgia, 'Times New Roman', Times, serif;
}
.article-body h2 { font-size: 24px; margin: 40px 0 8px; }
.article-body h3 { font-size: 22px; margin: 40px 0 6px; }
.article-body p,
.article-body li {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
.article-body ul { padding-left: 20px; }
.article-body a { color: var(--accent); }

/* TOC styling */
.in-this-article { background: #f8f9fa; }
.in-this-article h3 {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size: 14px;
  letter-spacing: 0.3px;
  color: var(--muted);
}
.in-this-article ul { list-style: none; padding-left: 0; margin: 0; }
.in-this-article li + li { margin-top: 8px; }
.in-this-article a {
  display: block;
  color: var(--text);
  text-decoration: none;
}
.in-this-article a:hover { text-decoration: underline; }

/* Utility blocks */
.ship-it-checklist h4,
.example h4 {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
.example p { font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }

.article-subtitle {
  font-size: 20px;
  color: var(--muted);
  margin: 0 0 16px;
  font-weight: 400;
  font-family: Inter, sans-serif;
}

.article-summary {
  background-color: #f8f9fa;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.article-summary p {
  margin: 0;
  font-family: Georgia, serif;
}