/* ─── Web Designer Journal ──────────────────────────────────
   style.css
   Fonts: system stack — Helvetica Neue / Arial / sans-serif
─────────────────────────────────────────────────────────── */

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

/* ─── Tokens ─────────────────────────────────────────────── */
:root {
  --blue-dark:  #0D2080;
  --blue-mid:   #4a5f9e;
  --blue-light: #e0e6f8;
  --blue-faint: rgba(224, 230, 248, 0.7);
  --red:        #F0112B;

  --font-display: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body:    'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:    'Courier New', Courier, monospace;
}

/* ─── Base ──────────────────────────────────────────────── */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  background: #fff;
  color: var(--blue-mid);
}

a {
  text-decoration: none;
  color: inherit;
}

/* ─── Body copy links ────────────────────────────────────── */
.article-body a {
  color: var(--blue-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .15s;
}

.article-body a:hover,
.article-body a:visited:hover {
  color: var(--red);
}

.article-body a:visited {
  color: var(--blue-dark);
}

/* ─── Container ─────────────────────────────────────────── */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ═══════════════════════════════════════════════════════════
   SITE HEADER (shared: index + post pages)
═══════════════════════════════════════════════════════════ */
.site-header {
  padding: 36px 0 52px;
}

.site-header__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header__monogram {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--blue-mid);
}

.site-header__issue {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--blue-mid);
}

.site-header__rule {
  height: 1.5px;
  background: var(--blue-dark);
  margin: 14px 0 22px;
}

.site-header__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 68px;
  letter-spacing: -.02em;
  line-height: .95;
  color: var(--blue-dark);
}

/* smaller title on post pages */
.site-header__title--small {
  font-size: 36px;
  line-height: 1;
  letter-spacing: -.01em;
}

/* ═══════════════════════════════════════════════════════════
   POST LIST (index.html)
═══════════════════════════════════════════════════════════ */
.post-list {
  list-style: none;
}

.post {
  position: relative;
  margin-bottom: 68px;
}

.post__number {
  position: absolute;
  top: -36px;
  left: -8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 160px;
  color: var(--blue-faint);
  line-height: 1;
  letter-spacing: -.03em;
  user-select: none;
  pointer-events: none;
  z-index: 0;
}

.post__body {
  position: relative;
  z-index: 1;
}

.post__category {
  display: block;
  font-size: 14px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 500;
  margin-bottom: 14px;
}

.post__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 50px;
  line-height: 1.06;
  letter-spacing: -.018em;
  color: var(--blue-dark);
  margin-bottom: 12px;
  transition: color .15s;
}

.post__title:hover {
  color: var(--blue-mid);
}

.post__subtitle {
  font-size: 20px;
  font-style: italic;
  font-weight: 300;
  color: var(--blue-mid);
  line-height: 1.45;
  margin-bottom: 24px;
}

.post__excerpt {
  font-size: 20px;
  line-height: 1.75;
  color: var(--blue-mid);
  max-width: 620px;
  margin-bottom: 28px;
}

.post__footer {
  display: flex;
  align-items: center;
  gap: 20px;
}

.post__date,
.post__read {
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--blue-mid);
}

.post__dot {
  font-size: 14px;
  color: var(--blue-light);
}

.post__read-link {
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-dark);
  border-bottom: 1px solid var(--blue-dark);
  padding-bottom: 2px;
  margin-left: auto;
  transition: color .15s, border-color .15s;
}

.post__read-link:hover {
  color: var(--blue-mid);
  border-color: var(--blue-mid);
}

.post__divider {
  height: 1px;
  background: var(--blue-light);
  margin-top: 44px;
}

/* ═══════════════════════════════════════════════════════════
   ARTICLE (post pages)
═══════════════════════════════════════════════════════════ */
.article-header {
  margin-bottom: 48px;
}

.article-header__back {
  display: inline-block;
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-mid);
  border-bottom: 1px solid var(--blue-light);
  padding-bottom: 2px;
  margin-bottom: 36px;
  transition: color .15s;
}

.article-header__back:hover {
  color: var(--blue-dark);
}

.article-header__category {
  display: block;
  font-size: 14px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 500;
  margin-bottom: 14px;
}

.article-header__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 60px;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--blue-dark);
  margin-bottom: 14px;
}

.article-header__subtitle {
  font-size: 22px;
  font-style: italic;
  font-weight: 300;
  color: var(--blue-mid);
  line-height: 1.45;
  margin-bottom: 24px;
}

.article-header__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--blue-light);
}

.article-header__meta-item {
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--blue-mid);
}

.article-header__meta-dot {
  font-size: 14px;
  color: var(--blue-light);
}

.article-divider {
  height: 1.5px;
  background: var(--blue-dark);
  margin-bottom: 48px;
}

/* ─── Article body ──────────────────────────────────────── */
.article-body {
  max-width: 660px;
}

.article-body p {
  font-size: 20px;
  line-height: 1.8;
  color: var(--blue-mid);
  margin-bottom: 28px;
}

.article-body p:last-child {
  margin-bottom: 0;
}

.article-body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -.01em;
  color: var(--blue-dark);
  margin: 48px 0 16px;
  line-height: 1.2;
}

.article-body blockquote {
  border-left: 3px solid var(--blue-dark);
  padding-left: 24px;
  margin: 40px 0;
  font-style: italic;
  font-weight: 300;
  font-size: 22px;
  color: var(--blue-mid);
  line-height: 1.6;
}

/* ─── Lists ──────────────────────────────────────────────── */
.article-body ul,
.article-body ol {
  margin: 0 0 28px 0;
  padding-left: 0;
  list-style: none;
}

.article-body ul li,
.article-body ol li {
  font-size: 20px;
  line-height: 1.8;
  color: var(--blue-mid);
  padding: 6px 0 6px 28px;
  position: relative;
  border-bottom: 1px solid var(--blue-light);
}

.article-body ul li:first-child,
.article-body ol li:first-child {
  border-top: 1px solid var(--blue-light);
}

.article-body ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 500;
}

.article-body ol {
  counter-reset: list-counter;
}

.article-body ol li {
  counter-increment: list-counter;
}

.article-body ol li::before {
  content: counter(list-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--red);
  top: 50%;
  transform: translateY(-50%);
}

/* ─── Code blocks ────────────────────────────────────────── */
.code-block {
  position: relative;
  margin: 32px 0;
}

.article-body pre {
  background: var(--blue-faint);
  border: 1px solid var(--blue-light);
  border-left: 3px solid var(--blue-dark);
  border-radius: 2px;
  padding: 24px 52px 24px 24px;
  overflow-x: auto;
  margin: 0;
}

.article-body pre code {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.7;
  color: var(--blue-dark);
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: 1px solid var(--blue-light);
  border-radius: 5px;
  padding: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--blue-mid);
  transition: all .3s;
}

.copy-btn:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  color: #fff;
}

.copy-btn.copied {
  background: #1a7a4a;
  border-color: #1a7a4a;
  color: #fff;
}

.copy-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ─── Article footer ────────────────────────────────────── */
.article-footer {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--blue-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.article-footer__back {
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-dark);
  border-bottom: 1px solid var(--blue-dark);
  padding-bottom: 2px;
  transition: color .15s, border-color .15s;
}

.article-footer__back:hover {
  color: var(--blue-mid);
  border-color: var(--blue-mid);
}

.article-footer__num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--blue-mid);
  letter-spacing: .1em;
}

/* ═══════════════════════════════════════════════════════════
   SITE FOOTER (shared)
═══════════════════════════════════════════════════════════ */
.site-footer {
  border-top: 4px solid var(--blue-dark);
  padding: 16px 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}

.site-footer__name {
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-mid);
}

.site-footer__copy {
  font-size: 14px;
  color: var(--blue-mid);
}