/*
  Sergio Mazariego — shared design system
  Loaded by index.html, /blog/, and /blog/<post>/ via root-relative path.

  Type system:
  - Display / structural text (headings, nav, labels, dates, indices):
    JetBrains Mono — a monospace built for reading code and logs. The whole
    site is about reading raw system output (event logs, autoruns, TCP
    tables, ATT&CK technique IDs), so a monospace voice for structure is a
    literal match for the subject, not a decoration.
  - Body copy: Source Serif 4 — a text serif built for long-form reading on
    screen. It reads like an after-action report rather than a marketing
    page, which is the right register for incident write-ups and research
    notes.

  Layout rule: any grid track that sits next to a flexible track must use
  minmax(0, ...) rather than a bare length or a bare `1fr`/`auto`. A bare
  `1fr` track resolves to `minmax(auto, 1fr)`, so its automatic minimum is
  the content's min-content size — on a narrow viewport a single long
  unbreakable token (a URL, "ATT&CK", "orchestration") can force that track,
  and the whole page, wider than the viewport. minmax(0, 1fr) removes that
  automatic minimum. Pair it with overflow-wrap so long tokens wrap instead
  of overflowing when a track still gets tight.
*/

:root {
  --bg: #050505;
  --surface: #0c0a0f;
  --text: #f5f3f7;
  --body: #cdc8d2;
  --muted: #a8a2ae;
  --faint: #8a8390;
  --line: #232028;
  --accent: #9a6db3;
  --accent-strong: #b98ed6;

  --page: 1120px;
  --topbar: 56px;

  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  overflow-wrap: break-word;
}

html {
  background: var(--bg);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-mono);
}

p, li, .item-copy, .about-value, .about-copy p {
  hyphens: auto;
}

::selection {
  color: #fff;
  background: rgba(154, 109, 179, .45);
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 3px;
}

img, svg {
  max-width: 100%;
}

.page {
  width: min(calc(100% - 40px), var(--page));
  margin: 0 auto;
}

/* Topbar — shared header used on every page */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--topbar);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.topbar-inner {
  width: min(calc(100% - 40px), var(--page));
  height: 100%;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  min-width: 0;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.nav a {
  color: var(--muted);
  transition: color .15s ease;
  white-space: nowrap;
}

.nav a:hover {
  color: #fff;
}

/* Hero — shared intro pattern used by the homepage and the blog listing */

.hero {
  min-height: calc(100svh - var(--topbar));
  display: flex;
  align-items: center;
  padding: 92px 0;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  width: min(100%, 940px);
  min-width: 0;
}

h1 {
  max-width: 980px;
  margin: 0;
  color: #fff;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -.01em;
  font-weight: 600;
  text-wrap: balance;
  overflow-wrap: break-word;
  hyphens: auto;
}

.hero-copy {
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--body);
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 34px;
}

/* Sections — shared heading rhythm */

section {
  padding: 84px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--topbar) + 24px);
  min-width: 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 40px;
  min-width: 0;
}

.section-title {
  margin: 0;
  color: #fff;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.18;
  letter-spacing: -.01em;
  font-weight: 600;
  overflow-wrap: break-word;
  hyphens: auto;
}

.section-dek {
  max-width: 560px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

/* List rows — the "post/work item" pattern shared by the homepage
   Work/Writing sections and the blog listing page. */

.work-list,
.writing-list,
.experience-list,
.research-list {
  border-top: 1px solid var(--line);
}

.work-item,
.writing-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .8fr) 24px;
  gap: 26px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: background .18s ease;
  min-width: 0;
}

/*
  Hover backdrop. It deliberately bleeds past the row's own box so the
  highlight reads as a full-bleed band rather than a card, but a negative
  horizontal inset adds to the document's scrollable width and pushed the
  whole page ~18px wider than the viewport on narrow screens. Clipping the
  bleed at the list keeps the visual effect without the overflow.
*/
.work-item::before,
.writing-item::before {
  content: "";
  position: absolute;
  inset: 0 -18px;
  z-index: -1;
  border-radius: 8px;
  background: transparent;
  transition: background .18s ease;
}

.work-list,
.writing-list {
  overflow-x: clip;
}

.work-item:hover::before,
.writing-item:hover::before {
  background: rgba(154, 109, 179, .06);
}

.writing-item {
  grid-template-columns: 120px minmax(0, 1fr) 24px;
}

.item-title {
  margin: 0 0 8px;
  color: #fff;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -.008em;
  font-weight: 600;
  overflow-wrap: break-word;
}

.item-copy {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.62;
}

.item-meta {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
}

.writing-date {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  white-space: nowrap;
}

.arrow {
  color: var(--accent);
  transition: transform .18s ease, color .18s ease;
}

.work-item:hover .arrow,
.writing-item:hover .arrow {
  color: #fff;
  transform: translateX(4px);
}

.section-cta {
  margin-top: 26px;
}

/* Footer — shared across every page */

footer {
  padding: 42px 0 calc(60px + env(safe-area-inset-bottom, 0px));
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.footer-name {
  margin-bottom: 5px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
}

.footer-copy {
  max-width: 560px;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 18px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.footer-links a:hover {
  color: #fff;
}

/* Generic link treatment used inline in copy and section CTAs */

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
}

.text-link span {
  transition: transform .15s ease;
}

.text-link:hover span {
  transform: translateX(3px);
}

.secondary-link {
  color: var(--muted);
}

@media (max-width: 900px) {
  .about-grid {
    gap: 40px;
  }
}

@media (max-width: 760px) {
  :root {
    --topbar: 52px;
  }

  body {
    font-size: 16px;
  }

  .page,
  .topbar-inner {
    width: calc(100% - 24px);
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 72px 0 60px;
  }

  .hero-copy {
    margin-top: 22px;
  }

  section {
    padding: 58px 0;
  }

  .section-title {
    font-size: clamp(22px, 7vw, 30px);
  }

  .work-item,
  .writing-item {
    grid-template-columns: minmax(0, 1fr) 18px;
    gap: 8px 12px;
  }

  .writing-date,
  .item-meta {
    grid-column: 1;
  }

  .work-item .arrow,
  .writing-item .arrow {
    grid-column: 2;
    grid-row: 1;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 430px) {
  .page,
  .topbar-inner {
    width: calc(100% - 20px);
  }

  .hero {
    padding: 60px 0 50px;
  }

  section {
    padding: 50px 0;
  }

  .section-title {
    font-size: clamp(20px, 7.5vw, 26px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}