/* ============================================
   devlog — shared stylesheet
   Design language: "release notes" for a tech blog.
   Posts are versioned like software releases.
   ============================================ */

:root {
  /* Color */
  --bg: #f6f4ee;
  --bg-alt: #edeae1;
  --surface: #ffffff;
  --ink: #171b1f;
  --ink-soft: #565b61;
  --ink-faint: #8a8f94;
  --accent: #c98a2c;
  --accent-dark: #a66f1e;
  --teal: #1f6f5c;
  --teal-bg: #e7efec;
  --border: #dedad0;
  --code-bg: #14181c;
  --code-ink: #e7e9ea;
  --code-accent: #e8b567;

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  /* Layout */
  --max: 1120px;
  --radius: 10px;
  --radius-sm: 6px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--teal);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1.1em;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo:hover {
  text-decoration: none;
}

.logo .bracket {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--ink);
  text-decoration: none;
}

.main-nav a.active {
  color: var(--accent-dark);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 16px;
    display: none;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
}

/* ---------- Hero / terminal ---------- */
.hero {
  padding: 64px 0 56px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  margin: 10px 0 18px;
}

.hero p.lede {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}

.btn-primary:hover {
  background: #000;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--ink);
}

/* terminal window */
.terminal {
  background: var(--code-bg);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px -18px rgba(20, 24, 28, 0.45);
  overflow: hidden;
  font-family: var(--font-mono);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #1c2126;
  border-bottom: 1px solid #262c32;
}

.terminal-bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3a4149;
}

.terminal-bar .label {
  margin-left: 8px;
  color: #6d757c;
  font-size: 0.78rem;
}

.terminal-body {
  padding: 20px 18px 26px;
  color: var(--code-ink);
  font-size: 0.92rem;
  min-height: 168px;
}

.terminal-body .line {
  color: var(--ink-faint);
  margin-bottom: 6px;
}

.terminal-body .prompt {
  color: var(--code-accent);
}

.terminal-body .cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background: var(--code-accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ---------- Ad slot ---------- */
.ad-slot {
  max-width: var(--max);
  margin: 40px auto;
  padding: 0 24px;
}

.ad-slot .ad-frame {
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px;
}

.ad-slot .ad-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- Section headings ---------- */
.section {
  padding: 48px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-head h2 {
  font-size: 1.6rem;
}

.section-head a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ---------- Release / post cards ---------- */
.release-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

@media (max-width: 860px) {
  .release-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .release-grid {
    grid-template-columns: 1fr;
  }
}

.release-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.release-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -20px rgba(23, 27, 31, 0.35);
}

.release-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.version-tag {
  background: var(--teal-bg);
  color: var(--teal);
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
}

.category-tag {
  color: var(--accent-dark);
}

.release-card h3 {
  font-size: 1.15rem;
}

.release-card h3 a {
  color: var(--ink);
}

.release-card h3 a:hover {
  color: var(--teal);
  text-decoration: none;
}

.release-card p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 0;
  flex-grow: 1;
}

.release-card .read-time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* list layout for blog index */
.release-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.release-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 20px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 700px) {
  .release-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

.release-row .version-tag {
  justify-self: start;
}

.release-row h3 {
  font-size: 1.25rem;
  margin-bottom: 6px;
}

.release-row h3 a {
  color: var(--ink);
}

.release-row p {
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.release-row .tags {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.release-row time {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  white-space: nowrap;
}

/* ---------- Article page ---------- */
.article-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--ink-faint);
}

.article-header h1 {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  max-width: 22ch;
}

.article-meta-bar {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 18px;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 20px;
}

.article-body h2 {
  font-size: 1.4rem;
  margin-top: 1.8em;
}

.article-body h3 {
  font-size: 1.15rem;
  margin-top: 1.5em;
}

.article-body p,
.article-body ul,
.article-body ol {
  color: var(--ink);
  font-size: 1.03rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.3em;
}

.article-body li {
  margin-bottom: 0.5em;
}

.article-body pre {
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 18px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
}

.article-body code {
  font-family: var(--font-mono);
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.article-body pre code {
  background: none;
  padding: 0;
}

.article-body blockquote {
  margin: 1.6em 0;
  padding: 4px 20px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
  font-style: italic;
}

.callout {
  background: var(--teal-bg);
  border: 1px solid #cfe1db;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 1.6em 0;
  font-size: 0.95rem;
}

.callout .eyebrow {
  color: var(--teal);
  display: block;
  margin-bottom: 6px;
}

.author-box {
  max-width: 720px;
  margin: 40px auto;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  flex-shrink: 0;
}

.author-box p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.author-box strong {
  color: var(--ink);
  font-family: var(--font-display);
}

/* ---------- Generic content pages (about/contact/legal) ---------- */
.page-header {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
}

.page-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.page-body h2 {
  font-size: 1.3rem;
  margin-top: 1.8em;
}

.page-body p, .page-body li {
  color: var(--ink);
}

.page-body .updated {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-bottom: 2em;
}

.contact-form {
  display: grid;
  gap: 16px;
  max-width: 520px;
}

.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

@media (max-width: 620px) {
  .contact-info-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info-grid .card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--surface);
}

.contact-info-grid .card h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-info-grid .card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 40px 0;
  background: var(--bg-alt);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.footer-col a:hover {
  color: var(--ink);
}

.footer-bottom {
  max-width: var(--max);
  margin: 30px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}