/* ============================================================
   Susai's Blog — style.css
   Palette: paper mist / ink pine / accent greens + amber
   Type: Zilla Slab (display) · IBM Plex Sans (body) · IBM Plex Mono (utility)
   ============================================================ */

:root {
  --paper:   #F3F5F0;
  --card:    #FFFFFF;
  --ink:     #16201A;
  --ink-2:   #3C4A41;
  --moss:    #75857A;
  --pine:    #1E5B3E;
  --pine-dk: #143F2B;
  --amber:   #B9771E;
  --rust:    #B0482F;
  --line:    #DCE2DA;

  --font-display: "Zilla Slab", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --maxw: 1060px;
  --radius: 6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--pine); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--pine-dk); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
  border-radius: 2px;
}

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

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand .prompt { color: var(--pine); }
.brand .cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: var(--pine);
  margin-left: 4px;
  vertical-align: -2px;
  animation: blink 1.2s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .brand .cursor { animation: none; }
  html { scroll-behavior: auto; }
}

.site-nav { display: flex; gap: 26px; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink-2);
  text-decoration: none;
}
.site-nav a:hover { color: var(--pine); }

/* ---------- Hero ---------- */

.hero { padding: 84px 0 64px; border-bottom: 1px solid var(--line); }

.hero .session {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--moss);
  margin-bottom: 22px;
}
.hero .session .prompt { color: var(--pine); font-weight: 600; }
.hero .session .cmd { color: var(--ink-2); }

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 6.5vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  max-width: 15ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--pine);
}

.hero .lede {
  margin-top: 22px;
  max-width: 58ch;
  font-size: 18.5px;
  color: var(--ink-2);
}

.hero .topic-line {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.chip {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink-2);
  text-decoration: none;
}
.chip:hover { border-color: var(--pine); color: var(--pine); }
.chip::before { content: "/"; color: var(--moss); margin-right: 6px; }

/* ---------- Section headers as shell comments ---------- */

.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--line); }

.section-head {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--moss);
  margin-bottom: 8px;
}
.section-head::before { content: "# "; color: var(--pine); }

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  margin-bottom: 34px;
}

/* ---------- Post grid ---------- */

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.post-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 24px 22px 28px;
  position: relative;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.post-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  border-radius: var(--radius) 0 0 var(--radius);
  background: var(--pine);
}
.post-card[data-topic="linux"]::before   { background: var(--amber); }
.post-card[data-topic="oci"]::before     { background: var(--rust); }
.post-card[data-topic="ansible"]::before { background: var(--pine); }

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(22, 32, 26, 0.08);
}
@media (prefers-reduced-motion: reduce) {
  .post-card:hover { transform: none; }
}

.post-card .path {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--moss);
  margin-bottom: 12px;
}

.post-card h3 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 10px;
}

.post-card p {
  font-size: 15px;
  color: var(--ink-2);
  flex: 1;
}

.post-card .meta {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--moss);
  display: flex;
  justify-content: space-between;
}

.post-card .read { color: var(--pine); font-weight: 600; }

/* ---------- Portfolio / About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 44px;
  align-items: start;
}

.about-grid p + p { margin-top: 14px; }
.about-grid .bio { color: var(--ink-2); }
.about-grid .bio strong { color: var(--ink); }

.card-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.card-panel h3 {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--moss);
  margin-bottom: 16px;
}

.skill-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.skill-list li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 5px 10px;
  color: var(--ink-2);
}

.fact-list { list-style: none; }
.fact-list li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
}
.fact-list li:last-child { border-bottom: none; }
.fact-list .k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--moss);
  min-width: 92px;
  padding-top: 2px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 34px 0 44px;
  margin-top: 20px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--moss);
}

.site-footer a { color: var(--ink-2); }

/* ---------- Article pages ---------- */

.article { padding: 64px 0 80px; }

.article-head { max-width: 760px; margin: 0 auto 44px; }

.article-head .path {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--moss);
  margin-bottom: 16px;
}
.article-head .path .prompt { color: var(--pine); font-weight: 600; }

.article-head h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 46px);
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: 16px;
}

.article-head .meta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--moss);
}
.article-head .meta .tag { color: var(--pine); font-weight: 600; }

.article-body { max-width: 760px; margin: 0 auto; }

.article-body h2 {
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 600;
  margin: 44px 0 14px;
}
.article-body h2::before { content: "# "; color: var(--pine); font-family: var(--font-mono); font-size: 20px; }

.article-body h3 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  margin: 30px 0 10px;
}

.article-body p { margin: 0 0 16px; color: var(--ink-2); }
.article-body p strong, .article-body li strong { color: var(--ink); }

.article-body ul, .article-body ol { margin: 0 0 18px 26px; color: var(--ink-2); }
.article-body li { margin-bottom: 8px; }

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: #E7ECE5;
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--pine-dk);
}

.article-body pre {
  background: #14231B;
  color: #D7E4D9;
  border-radius: var(--radius);
  padding: 20px 22px;
  overflow-x: auto;
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.6;
  border: 1px solid #0E1A13;
}

.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.article-body pre .c { color: #7FA08B; }   /* comment */
.article-body pre .p { color: #8FD3A8; font-weight: 600; } /* prompt */

.article-body blockquote {
  border-left: 4px solid var(--pine);
  background: var(--card);
  padding: 14px 18px;
  margin: 0 0 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-2);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
  font-size: 15px;
  background: var(--card);
}
.article-body th, .article-body td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
}
.article-body th {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--moss);
  background: var(--paper);
}

.back-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13.5px;
  margin-top: 40px;
}
.back-link::before { content: "cd .. "; color: var(--moss); }

/* ---------- Responsive ---------- */

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  .site-nav { gap: 16px; }
  body { font-size: 16px; }
}

@media (max-width: 480px) {
  .site-nav a:nth-child(3) { display: none; }
}