/* =============================================================
   site.css — Piyusha Akash / 0x3xp — Portfolio
   Shared stylesheet for all pages
   ============================================================= */

/* ── Google Fonts (loaded via HTML <link> for all pages) ────── */

/* ── CSS Custom Properties ───────────────────────────────────── */
:root {
  --bg:           #0e1117;
  --bg-2:         #131722;
  --surface:      #161b26;
  --surface-2:    #1c2230;
  --border:       #262e3d;
  --border-soft:  #1e2534;
  --text:         #f0f3f6;
  --text-soft:    #9da8b7;
  --text-muted:   #626f82;
  --accent:       #58a6ff;
  --accent-dim:   rgba(88, 166, 255, 0.12);
  --accent-soft:  #388bfd;
  --red:          #f85149;
  --mono:         'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans:         'Inter', ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max:          1140px;
  --radius:       4px;
  --radius-lg:    8px;
}

/* ── Reset & Base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 600; letter-spacing: -0.02em; color: var(--text); }

h1 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
h2 { font-size: 19px; font-weight: 620; letter-spacing: -0.015em; }
h3 { font-size: 14px; font-weight: 600; }

p { color: var(--text-soft); }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.18s ease;
}
a:hover { color: var(--accent); }

code, pre {
  font-family: var(--mono);
}

code {
  display: inline;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 0.85em;
}

/* ── Layout ──────────────────────────────────────────────────── */
.site-shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

/* ── Header / Nav ────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.055);
  background: rgba(13, 14, 16, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  text-decoration: none;
}
.brand:hover .brand-name { color: var(--text); }
.brand:hover .brand-handle { color: var(--text-muted); }

.brand-name {
  font-size: 13.5px;
  font-weight: 650;
  letter-spacing: 0.005em;
  color: var(--text);
  transition: color 0.18s ease;
}
.brand-handle {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--mono);
  transition: color 0.18s ease;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-nav a {
  padding: 5px 10px;
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 450;
  letter-spacing: 0.01em;
  transition: color 0.18s ease, background 0.18s ease;
}
.site-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}
.site-nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(91, 141, 184, 0.1);
}

.nav-toggle {
  display: none;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-soft);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.nav-toggle:hover { color: var(--text); border-color: var(--border-soft); }

/* ── Page Main ───────────────────────────────────────────────── */
.page-main { padding: 56px 0 96px; }

/* ── Section Grid Layout ─────────────────────────────────────── */
.page-intro,
.section-block {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 48px;
}
.page-intro { padding-bottom: 40px; }
.section-block {
  padding: 36px 0;
  border-top: 1px solid var(--border-soft);
}

/* ── Section Labels ──────────────────────────────────────────── */
.section-label {
  padding-top: 6px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.5;
  font-family: var(--mono);
}

/* ── Hero / Intro ────────────────────────────────────────────── */
.intro-content { max-width: 900px; }

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.page-summary {
  max-width: 800px;
  margin: 12px 0 22px;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ── Social / Inline Links ───────────────────────────────────── */
.inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 0;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 12.5px;
  font-weight: 450;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  margin-right: 8px;
  margin-bottom: 8px;
}
.social-link:hover {
  color: var(--text);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}
.social-link svg {
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 0.18s ease;
}
.social-link:hover svg { opacity: 1; }

.link-mark { color: var(--text-muted); font-size: 0.9em; margin-left: 2px; }

/* ── About / Bio ─────────────────────────────────────────────── */
.bio-copy { max-width: 820px; }
.bio-copy p {
  margin: 0 0 16px;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.78;
}
.bio-copy p:last-child { margin-bottom: 0; }

/* ── Section Heading Row ─────────────────────────────────────── */
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}
.section-heading h2 { margin: 0; }
.section-heading .meta {
  color: var(--text-muted);
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* ── Open Source / Contribution Card ────────────────────────── */
.contrib-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.contrib-card:hover { border-color: var(--accent-soft); }

.contrib-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.contrib-header-left { flex: 1 1 auto; min-width: 0; }

.contrib-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
  padding: 3px 9px;
  border: 1px solid rgba(91, 141, 184, 0.3);
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.contrib-project {
  margin: 0 0 4px;
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

.contrib-title {
  margin: 0;
  font-size: 17px;
  font-weight: 620;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.01em;
}

.contrib-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}
.contrib-date {
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--mono);
}
.contrib-project-badge {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-soft);
  font-size: 10px;
  font-family: var(--mono);
}

.contrib-body {
  padding: 18px 22px;
}

.contrib-finding {
  margin-bottom: 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--accent-soft);
  background: rgba(91, 141, 184, 0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.contrib-finding strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--mono);
}
.contrib-finding p {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.65;
}

/* ── Code Diff Block ─────────────────────────────────────────── */
.diff-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 12.5px;
  margin-bottom: 16px;
}

.diff-header {
  padding: 8px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.diff-code {
  display: block;
  padding: 10px 0;
  background: #0b0d0f;
  overflow-x: auto;
  line-height: 1.65;
}
.diff-code code {
  display: block;
  padding: 0;
  border: none;
  background: transparent;
  font-size: inherit;
  font-family: inherit;
}

.diff-ctx,
.diff-add,
.diff-del {
  display: block;
  padding: 1px 14px;
  white-space: pre;
}
.diff-ctx { color: #808080; }
.diff-add {
  background: rgba(46, 160, 67, 0.15);
  color: #3fb950;
}
.diff-del {
  background: rgba(248, 81, 73, 0.15);
  color: #f85149;
}

.contrib-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}
.contrib-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11.5px;
  font-weight: 450;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.contrib-link:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── Company / Manifold Operations ──────────────────────────── */
.company-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  transition: border-color 0.2s ease;
}
.company-card:hover { border-color: var(--border-soft); }

.company-wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.company-name {
  font-size: 17px;
  font-weight: 640;
  letter-spacing: -0.02em;
  color: var(--text);
}
.company-role {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 10.5px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}
.company-desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 13.5px;
  line-height: 1.7;
  max-width: 640px;
}

.company-links {
  display: flex;
  flex-direction: column;
  gap: 7px;
  align-items: flex-end;
}
.company-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11.5px;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.company-link:hover {
  color: var(--text);
  border-color: var(--border-soft);
  background: rgba(255, 255, 255, 0.04);
}

/* ── Focus Grid ──────────────────────────────────────────────── */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border-soft);
  border-left: 1px solid var(--border-soft);
}
.focus-item {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  padding: 18px;
  border-right: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--surface);
  transition: background 0.18s ease;
}
.focus-item:hover { background: var(--surface-2); }
.item-index {
  color: var(--text-muted);
  font-size: 10px;
  font-family: var(--mono);
  padding-top: 2px;
  letter-spacing: 0.04em;
}
.focus-item h3 { margin: 0 0 5px; font-size: 13.5px; }
.focus-item p { margin: 0; color: var(--text-muted); font-size: 12px; line-height: 1.6; }

/* ── Technical Stack ─────────────────────────────────────────── */
.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.stack-list span,
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 11px;
  font-family: var(--mono);
  line-height: 1;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.stack-list span:hover,
.tag:hover {
  color: var(--text);
  border-color: var(--border-soft);
}

/* ── Credentials ─────────────────────────────────────────────── */
.credentials { border-top: 1px solid var(--border-soft); }
.credential-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--border-soft);
  transition: opacity 0.15s ease;
}
.credential-row:hover { opacity: 0.85; }
.credential-main {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
  gap: 16px;
  flex: 1 1 auto;
  min-width: 0;
}
.credential-short {
  color: var(--accent);
  font-size: 10.5px;
  font-weight: 650;
  letter-spacing: 0.06em;
  font-family: var(--mono);
}
.credential-row h3 { margin: 0 0 2px; font-size: 13.5px; }
.credential-row p { margin: 0; color: var(--text-muted); font-size: 11px; }
.credential-action {
  flex-shrink: 0;
}
.credential-action a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11px;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.credential-action a:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── Contact ─────────────────────────────────────────────────── */
.contact-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.contact-copy h2 { margin: 0 0 5px; font-size: 16px; }
.contact-copy p { margin: 0; color: var(--text-muted); font-size: 12.5px; }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 12px;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.contact-link:hover {
  color: var(--text);
  border-color: var(--border-soft);
  background: rgba(255, 255, 255, 0.04);
}
.contact-link.contact-primary {
  border-color: var(--accent-soft);
  color: var(--accent);
  background: var(--accent-dim);
}
.contact-link.contact-primary:hover {
  background: rgba(91, 141, 184, 0.2);
}

/* ── Project Cards ───────────────────────────────────────────── */
.project-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  transition: border-color 0.2s ease;
}
.project-card:hover { border-color: var(--border-soft); }
.project-card.project-featured {
  border-color: var(--border);
  background: var(--surface-2);
}
.project-card.project-featured:hover { border-color: var(--accent-soft); }

.project-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project-topline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 9.5px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-card h2 { margin: 0 0 9px; font-size: 20px; }
.project-card p { margin: 0 0 14px; color: var(--text-soft); font-size: 13.5px; line-height: 1.7; }

.project-note {
  margin: 14px 0;
  padding: 12px 14px;
  border-left: 2px solid var(--accent-soft);
  background: rgba(91, 141, 184, 0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.project-note strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-soft);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--mono);
}
.project-note p { margin: 0; color: var(--text-muted); font-size: 12.5px; line-height: 1.65; }

.tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11.5px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.project-links a:hover {
  color: var(--text);
  border-color: var(--border-soft);
  background: rgba(255, 255, 255, 0.04);
}
.project-links a.link-primary {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}
.project-links a.link-primary:hover { background: rgba(91, 141, 184, 0.2); }

/* ── Blog / Publications ─────────────────────────────────────── */
.publications { border-top: 1px solid var(--border-soft); }

.publication-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) 72px;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border-soft);
  align-items: start;
  transition: opacity 0.15s ease;
}
.publication-row:hover { opacity: 0.85; }

.pub-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
  padding-top: 3px;
}

.pub-content h2 { margin: 0 0 6px; font-size: 17px; }
.pub-content p { margin: 0 0 10px; color: var(--text-muted); font-size: 12.5px; line-height: 1.65; }

.pub-action { text-align: right; }
.pub-action a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11.5px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.pub-action a:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── OS Contrib on Projects page ─────────────────────────────── */
.os-contrib-card {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  transition: border-color 0.2s ease;
}
.os-contrib-card:hover { border-color: var(--accent-soft); }

.os-contrib-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(91, 141, 184, 0.3);
  border-radius: var(--radius);
  background: var(--accent-dim);
  color: var(--accent);
  flex-shrink: 0;
}

.os-contrib-content {}
.os-contrib-label {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 9.5px;
  font-family: var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.os-contrib-content h3 { margin: 0 0 5px; font-size: 15px; }
.os-contrib-content p { margin: 0 0 12px; color: var(--text-muted); font-size: 12.5px; line-height: 1.65; }

.os-contrib-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.os-contrib-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.os-contrib-links a:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── Contribution Type Badges ────────────────────────────────── */
.type-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 9.5px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  border: 1px solid;
  white-space: nowrap;
}
.type-security   { color: #f85149; background: rgba(248,81,73,0.08); border-color: rgba(248,81,73,0.28); }
.type-bug        { color: #e3b341; background: rgba(227,179,65,0.08); border-color: rgba(227,179,65,0.28); }
.type-leak       { color: #d29922; background: rgba(210,153,34,0.08); border-color: rgba(210,153,34,0.28); }
.type-concurrency{ color: #a371f7; background: rgba(163,113,247,0.08); border-color: rgba(163,113,247,0.28); }
.type-info       { color: #6cb6ff; background: rgba(108,182,255,0.08); border-color: rgba(108,182,255,0.28); }

/* ── Compact Contribution Row (homepage + contributions page) ── */
.contrib-list {
  border-top: 1px solid var(--border-soft);
}

.contrib-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 20px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--border-soft);
  transition: opacity 0.15s ease;
}
.contrib-row:hover { opacity: 0.85; }

.contrib-row-left {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contrib-row-title {
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.contrib-row-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

.contrib-row-project {
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.contrib-row-right {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
}

.contrib-row-links {
  display: flex;
  gap: 6px;
}

.contrib-row-link {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 10.5px;
  font-family: var(--mono);
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.contrib-row-link:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

.contrib-see-all {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 450;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.contrib-see-all:hover {
  color: var(--text);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── Contributions page full-detail cards ────────────────────── */
.contrib-full-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  margin-bottom: 12px;
  transition: border-color 0.2s ease;
}
.contrib-full-card:last-child { margin-bottom: 0; }
.contrib-full-card:hover { border-color: var(--accent-soft); }

.contrib-full-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px 12px;
  border-bottom: 1px solid var(--border-soft);
}
.contrib-full-top-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.contrib-full-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.contrib-merged-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border: 1px solid rgba(63,185,80,0.3);
  border-radius: 999px;
  background: rgba(63,185,80,0.08);
  color: #3fb950;
  font-size: 9.5px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contrib-full-title {
  margin: 0;
  font-size: 15px;
  font-weight: 620;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.contrib-full-top-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}
.contrib-full-date {
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
}
.contrib-full-lang {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-soft);
  font-size: 10px;
  font-family: var(--mono);
}
.contrib-full-body {
  padding: 14px 18px;
}
.contrib-full-finding {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-left: 2px solid var(--accent-soft);
  background: rgba(91,141,184,0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.contrib-full-finding strong {
  display: block;
  margin-bottom: 3px;
  color: var(--accent);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--mono);
}
.contrib-full-finding p {
  margin: 0;
  color: var(--text-soft);
  font-size: 12.5px;
  line-height: 1.65;
}
.contrib-full-diff {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 12px;
  margin-bottom: 12px;
}
.contrib-full-diff-header {
  padding: 6px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}
.contrib-full-diff pre {
  display: block;
  padding: 8px 0;
  background: #0b0d0f;
  overflow-x: auto;
  line-height: 1.6;
  margin: 0;
}
.contrib-full-diff pre code {
  display: block;
  padding: 0;
  border: none;
  background: transparent;
  font-size: inherit;
  font-family: inherit;
}
.contrib-full-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}
.contrib-full-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-soft);
  font-size: 11px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.contrib-full-link:hover {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
}

/* ── CVE & Vulnerability Disclosure Styles ──────────────────── */
.cve-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cve-featured-card {
  border: 1px solid rgba(88, 166, 255, 0.24);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(22, 27, 38, 0.98) 0%, rgba(18, 23, 32, 0.98) 100%);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.cve-featured-card:hover {
  border-color: var(--accent-soft);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.35);
}

.cve-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.cve-top-left {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.cve-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.cve-id-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(248, 81, 73, 0.12);
  border: 1px solid rgba(248, 81, 73, 0.35);
  color: #f85149;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.cve-id-badge svg {
  flex-shrink: 0;
}
.cve-target-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 10.5px;
}
.cve-metric-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid rgba(88, 166, 255, 0.28);
  color: #58a6ff;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
}
.cve-metric-badge.metric-high {
  background: rgba(248, 81, 73, 0.12);
  border-color: rgba(248, 81, 73, 0.35);
  color: #f85149;
}
.cve-metric-badge.metric-medium {
  background: rgba(210, 153, 34, 0.12);
  border-color: rgba(210, 153, 34, 0.35);
  color: #d29922;
}
.cve-metric-badge.metric-low {
  background: rgba(88, 166, 255, 0.1);
  border-color: rgba(88, 166, 255, 0.28);
  color: #58a6ff;
}
.cve-top-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}
.cve-date {
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--mono);
}

.cve-title {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.cve-body {
  padding: 20px 24px;
}

.cve-credit-quote {
  margin: 0 0 18px;
  padding: 14px 18px;
  border-left: 3px solid var(--accent);
  background: rgba(88, 166, 255, 0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.cve-credit-label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--mono);
}
.cve-credit-text {
  margin: 0;
  font-style: italic;
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}
.cve-credit-text strong {
  color: #ffffff;
  font-weight: 600;
  font-style: normal;
}
.cve-credit-source {
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--mono);
}

.cve-desc {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 13.8px;
  line-height: 1.72;
}
.cve-desc p {
  margin: 0 0 10px;
  color: inherit;
}
.cve-desc p:last-child {
  margin-bottom: 0;
}

.cve-ref-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 10.5px;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cve-ref-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.cve-ref-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-soft);
  font-size: 11.5px;
  font-family: var(--mono);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.18s ease;
}
.cve-ref-pill:hover {
  color: var(--text);
  border-color: var(--accent-soft);
  background: var(--accent-dim);
  transform: translateY(-1px);
}
.cve-ref-pill.cve-pill-authority {
  border-color: rgba(88, 166, 255, 0.35);
  background: rgba(88, 166, 255, 0.08);
  color: #79b8ff;
  font-weight: 500;
}
.cve-ref-pill.cve-pill-authority:hover {
  background: rgba(88, 166, 255, 0.18);
  color: #ffffff;
  border-color: var(--accent);
}
.cve-ref-pill.cve-pill-redhat {
  border-color: rgba(238, 0, 0, 0.38);
  background: rgba(238, 0, 0, 0.08);
  color: #ff6b6b;
  font-weight: 500;
}
.cve-ref-pill.cve-pill-redhat:hover {
  background: rgba(238, 0, 0, 0.2);
  color: #ffffff;
  border-color: #ee0000;
}
.cve-ref-pill.cve-pill-nvd {
  border-color: rgba(88, 166, 255, 0.38);
  background: rgba(88, 166, 255, 0.08);
  color: #79b8ff;
  font-weight: 500;
}
.cve-ref-pill.cve-pill-nvd:hover {
  background: rgba(88, 166, 255, 0.2);
  color: #ffffff;
  border-color: var(--accent);
}
.cve-ref-pill.cve-pill-code {
  border-color: rgba(63, 185, 80, 0.35);
  background: rgba(63, 185, 80, 0.08);
  color: #56d364;
}
.cve-ref-pill.cve-pill-code:hover {
  background: rgba(63, 185, 80, 0.18);
  color: #ffffff;
  border-color: #3fb950;
}

.cve-footer-action {
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.cve-footer-action a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 12.5px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.18s ease;
}
.cve-footer-action a:hover {
  color: #ffffff;
}

/* ── Upstream Overview Summary Card (Homepage) ───────────────── */
.upstream-overview-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: center;
  transition: border-color 0.2s ease;
}
.upstream-overview-card:hover {
  border-color: var(--accent-soft);
}
.upstream-overview-content h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 620;
  color: var(--text);
}
.upstream-overview-content p {
  margin: 0 0 14px;
  color: var(--text-soft);
  font-size: 13.5px;
  line-height: 1.68;
}
.upstream-overview-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.upstream-overview-action {
  flex-shrink: 0;
}
.upstream-overview-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.18s ease;
}
.upstream-overview-btn:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

/* ── Note Box ────────────────────────────────────────────────── */
.note-box {
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.65;
}
.note-box strong { color: var(--text-soft); }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 22px 0 32px;
  color: var(--text-muted);
  font-size: 11px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-muted);
  transition: color 0.18s ease;
}
.footer-links a:hover { color: var(--text-soft); }
.footer-sep { margin: 0 2px; opacity: 0.4; }

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-intro .intro-content {
  animation: fadeUp 0.5s ease both;
}
.section-block:nth-child(2)  { animation: fadeUp 0.5s 0.06s ease both; }
.section-block:nth-child(3)  { animation: fadeUp 0.5s 0.12s ease both; }
.section-block:nth-child(4)  { animation: fadeUp 0.5s 0.18s ease both; }
.section-block:nth-child(5)  { animation: fadeUp 0.5s 0.24s ease both; }
.section-block:nth-child(6)  { animation: fadeUp 0.5s 0.30s ease both; }
.section-block:nth-child(7)  { animation: fadeUp 0.5s 0.36s ease both; }
.section-block:nth-child(8)  { animation: fadeUp 0.5s 0.42s ease both; }
.section-block:nth-child(9)  { animation: fadeUp 0.5s 0.48s ease both; }

/* ── Responsive: Tablet ──────────────────────────────────────── */
@media (max-width: 900px) {
  .site-shell { width: min(calc(100% - 36px), var(--max)); }

  .page-intro,
  .section-block {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .project-list { grid-template-columns: 1fr; }

  .publication-row { grid-template-columns: 110px minmax(0, 1fr); }
  .pub-action { grid-column: 2; text-align: left; }

  .company-card {
    grid-template-columns: 1fr;
  }
  .company-links {
    flex-direction: row;
    align-items: flex-start;
  }

  .contact-panel { grid-template-columns: 1fr; }
  .contact-links { flex-direction: row; align-items: flex-start; }
}

/* ── Responsive: Mobile ──────────────────────────────────────── */
@media (max-width: 680px) {
  .site-shell { width: min(calc(100% - 28px), var(--max)); }

  .header-inner { min-height: 58px; position: relative; }

  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--border);
    border-top: none;
    background: rgba(13, 14, 16, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 100;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    padding: 13px 16px;
    border-radius: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 14px;
    background: transparent;
  }
  .site-nav a:first-child { border-top: none; }

  .page-main { padding: 36px 0 64px; }
  .page-intro { padding-bottom: 28px; }
  .section-block { padding: 28px 0; }

  h2 { font-size: 17px; }

  .focus-grid { grid-template-columns: 1fr; }

  .credential-main { grid-template-columns: 60px 1fr; }

  .publication-row { grid-template-columns: 1fr; gap: 10px; }
  .pub-action { grid-column: auto; text-align: left; }

  .contrib-header { flex-direction: column; }
  .contrib-meta { flex-direction: row; align-items: center; }

  .cve-top { flex-direction: column; gap: 12px; }
  .cve-top-right { align-items: flex-start; }
  .cve-ref-pill { font-size: 11px; padding: 4px 10px; }
  .upstream-overview-card { grid-template-columns: 1fr; gap: 16px; }

  .os-contrib-card { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* ── Reduced Motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}