/* Design tokens and defaults. */
:root {
  color-scheme: dark;
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  color: #f1f1f1;
  background: #090909;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;

  --color-bg: #090909;
  --color-text: #f1f1f1;
  --color-muted: #b2b2b2;
  --color-faint: #707070;
  --color-line: #363636;
  --color-accent: #ff3542;
  --color-accent-hover: #ff5963;
  --color-on-accent: #090909;
  --color-ruby: #ff3542;
  --color-crystal: #ff3542;
  --geometry-line: rgba(241, 241, 241, .5);
  --geometry-red: rgba(255, 53, 66, .9);
  --font-sans: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --font-body: var(--font-sans);
  --font-display: var(--font-sans);
  --font-mono: var(--font-sans);
  --page-width: 1120px;
  --page-gutter: 32px;
}

/* Small Tailwind-style utility set for reusable layout and action styling. */
.inline-flex { display: inline-flex; }
.items-center { align-items: center; }
.gap-2 { gap: .5rem; }
.rounded { border-radius: 4px; }
.border { border: 1px solid; }
.border-accent { border-color: var(--color-accent); }
.bg-accent { background-color: var(--color-accent); }
.text-accent { color: var(--color-accent); }
.text-on-accent { color: var(--color-on-accent); }
.px-4 { padding-inline: 1rem; }
.py-2\.5 { padding-block: .625rem; }
.font-medium { font-weight: 500; }
.no-underline { text-decoration: none; }
.transition-colors { transition: background-color 160ms ease, color 160ms ease; }
.hover\:bg-accent:hover { background-color: var(--color-accent); }
.hover\:bg-accent-hover:hover { background-color: var(--color-accent-hover); }
.hover\:text-on-accent:hover { color: var(--color-on-accent); }
.focus\:outline-accent:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

/* Document defaults, focus treatment, and geometric background art. */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  position: relative;
  isolation: isolate;
  min-width: 320px;
  margin: 0;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(to bottom, transparent 35rem, var(--color-bg) 78rem),
    linear-gradient(rgba(255, 255, 255, .008) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .008) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
  background-repeat: no-repeat, repeat, repeat;
}
a { color: inherit; text-decoration-color: #687061; text-underline-offset: .25em; }
a:hover { color: var(--color-accent); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 5px; }

.site-backdrop { position: relative; z-index: 0; grid-column: 2; grid-row: 1; justify-self: center; width: clamp(180px, 19vw, 220px); height: auto; overflow: visible; opacity: .5; pointer-events: none; }
.site-backdrop__lines { fill: none; stroke: var(--geometry-line); stroke-width: 1.15; vector-effect: non-scaling-stroke; }
.site-backdrop__facet { fill: var(--geometry-red); opacity: .36; }
.site-backdrop__facet--offset { opacity: .18; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}

/* Shared page container and section grid. */
.journal-shell { position: relative; z-index: 1; width: min(var(--page-width), calc(100% - 2 * var(--page-gutter))); margin-inline: auto; }
.journal-main { padding-bottom: 72px; }
.journal-interests, .journal-writing { display: grid; grid-template-columns: minmax(180px, .7fr) minmax(0, 1.6fr); gap: clamp(36px, 8vw, 112px); }
.journal-interests { grid-template-columns: 1fr; gap: 12px; max-width: 740px; padding: 24px 0 30px; }
.journal-writing { display: block; padding: 0; }

/* Site identity and primary navigation. */
.masthead { min-height: 74px; display: flex; align-items: center; justify-content: space-between; }
.site-wordmark { display: inline-flex; align-items: center; gap: 11px; color: var(--color-text); text-decoration: none; }
.site-wordmark__name { font-family: var(--font-body); font-size: .88rem; font-weight: 500; }
.site-wordmark__separator { display: inline-block; width: .4em; height: .4em; margin: 0 .12em; background: var(--color-accent); font-size: 0; transform: rotate(45deg); vertical-align: .14em; }
.site-wordmark__domain { margin-left: .12em; color: var(--color-faint); font-size: .76em; font-weight: 400; letter-spacing: 0; }
.site-mark { width: 26px; height: 26px; overflow: visible; fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.15; }
.site-mark__ruby { stroke: var(--color-ruby); }
.site-mark__crystal { stroke: var(--color-crystal); }
.site-nav { display: flex; gap: 29px; color: var(--color-text); font-family: var(--font-body); font-size: .82rem; }
.site-nav a { text-decoration: none; }

/* Introductory profile headline and call to action. */
.journal-hero { position: relative; display: grid; grid-template-columns: minmax(0, 680px) minmax(180px, 1fr); align-items: center; gap: clamp(32px, 6vw, 80px); padding: clamp(64px, 9vw, 118px) 0 36px; }
.journal-hero__story { position: relative; z-index: 1; grid-column: 1; grid-row: 1; max-width: 680px; }
.display-heading { margin: 0; font-family: var(--font-display); font-size: clamp(2.4rem, 4.3vw, 3.55rem); font-weight: 500; line-height: 1.08; overflow-wrap: break-word; }
.display-heading em { color: var(--color-ruby); font-family: inherit; font-size: .94em; font-style: normal; font-weight: inherit; }
.journal-hero__role { margin: 18px 0 0; color: var(--color-text); font-size: .95rem; }
.hero__intro { max-width: 590px; margin: 12px 0 0; color: var(--color-muted); font-family: var(--font-body); font-size: 1rem; line-height: 1.7; }
.text-link { display: inline-flex; margin-top: 22px; font-family: var(--font-body); font-size: .95rem; }

/* Plain copy for the homepage interests section. */
.section-heading { margin: 0; font-family: var(--font-display); font-size: clamp(1.45rem, 2.2vw, 1.8rem); font-weight: 500; }
.interests-copy { max-width: 560px; margin: 0; color: var(--color-muted); font-size: .98rem; line-height: 1.7; }

/* Latest-post list and its initial empty state. */
.empty-state { max-width: 630px; padding: 8px 0 0; color: var(--color-muted); font-family: var(--font-body); font-size: .92rem; line-height: 1.75; }
.empty-state__title { display: block; margin-bottom: 5px; color: var(--color-text); font-size: 1rem; font-weight: 500; }
.post-list { display: grid; gap: 24px; }
.post-list--columns { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(28px, 5vw, 64px); row-gap: 24px; }
.journal-writing__heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.journal-writing__heading .section-heading { margin: 0; }
.journal-writing__archive { flex: 0 0 auto; font-size: .85rem; }
.post-list__item { padding: 0; }
.post-list__item + .post-list__item { padding-top: 0; }
.post-list__meta { margin: 8px 0 5px; color: var(--color-muted); font-family: var(--font-body); font-size: .8rem; }
.post-list__title { margin: 0; font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; }
.post-list__title a { text-decoration: none; }
.post-list__summary { margin: 8px 0 0; color: var(--color-muted); font-size: .88rem; line-height: 1.7; }
.post-list__more { margin: 12px 0 0; font-size: .88rem; }

/* Published post reading view. */
.journal-main--post { padding-top: clamp(60px, 9vw, 112px); }
.post-page { max-width: 780px; margin-inline: auto; }
.post-page__header { padding-bottom: 24px; }
.post-page__header .display-heading { font-size: clamp(2.25rem, 4vw, 3.4rem); }
.post-page__meta { margin: 0 0 16px; color: var(--color-muted); font-size: .82rem; }
.post-page__summary { max-width: 660px; margin: 16px 0 0; color: var(--color-muted); font-size: 1rem; line-height: 1.7; }
.post-content { padding-top: 26px; color: var(--color-text); font-size: 1.02rem; line-height: 1.85; overflow-wrap: anywhere; }
.post-content > :first-child { margin-top: 0; }
.post-content h2, .post-content h3, .post-content h4 { margin: 1.8em 0 .65em; font-weight: 500; line-height: 1.3; }
.post-content h2 { font-size: 1.5rem; }
.post-content h3 { font-size: 1.25rem; }
.post-content p, .post-content ul, .post-content ol, .post-content blockquote, .post-content pre { margin: 1.25em 0; }
.post-content a { color: var(--color-accent); }
.post-content blockquote { margin-inline: 0; padding-left: 18px; border-left: 2px solid var(--color-accent); color: var(--color-muted); }
.post-content pre { max-width: 100%; padding: 18px; overflow-x: auto; border: 1px solid var(--color-line); background: rgba(255, 255, 255, .035); font-size: .84rem; line-height: 1.65; }
.post-content code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .88em; }
.post-content :not(pre) > code { padding: .12em .32em; border: 1px solid var(--color-line); background: rgba(255, 255, 255, .04); }
.post-content img { display: block; max-width: 100%; height: auto; }
.journal-main--archive { padding-top: clamp(60px, 9vw, 112px); }
.writing-archive { max-width: 780px; margin-inline: auto; }
.archive-pagination { display: flex; justify-content: flex-end; margin-top: 22px; }
.archive-pagination__next { color: var(--color-accent); font-size: .9rem; }

.admin-body { min-height: 100vh; background: var(--color-bg); color: var(--color-text); }
.admin-main { width: min(920px, calc(100% - 40px)); margin: 0 auto; padding: clamp(30px, 7vw, 76px) 0; }
.admin-main--login { width: min(440px, calc(100% - 40px)); padding-top: min(18vh, 150px); }
.admin-main--form { width: min(760px, calc(100% - 40px)); }
.admin-brand { display: inline-block; color: var(--color-text); font-family: var(--font-mono); font-size: .78rem; font-weight: 600; letter-spacing: .03em; text-decoration: none; }
.admin-brand span, .admin-kicker span { color: var(--color-accent); }
.admin-main h1 { margin: 22px 0 28px; font-family: var(--font-display); font-size: clamp(2.25rem, 5vw, 3.2rem); font-weight: 500; letter-spacing: -.04em; }
.admin-header, .admin-title-row, .admin-post-row, .admin-form-actions { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.admin-form-nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.admin-back-link { white-space: nowrap; }
.admin-title-row { margin: 70px 0 28px; align-items: end; }
.admin-title-row h1 { margin: 5px 0 0; }
.admin-kicker { margin: 34px 0 0; color: var(--color-muted); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.admin-kicker a { color: inherit; text-decoration: none; }
.admin-button { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; gap: 12px; padding: 0 16px; border: 1px solid var(--color-accent); background: var(--color-accent); color: #fff; font: inherit; font-size: .83rem; text-decoration: none; cursor: pointer; }
.admin-button:hover, .admin-button:focus-visible { border-color: #9f1824; background: #9f1824; color: #fff; }
.admin-button--quiet { border-color: var(--color-line); background: transparent; color: var(--color-text); }
.admin-link-button, .admin-delete { padding: 0; border: 0; background: none; color: var(--color-muted); font: inherit; font-size: .8rem; text-decoration: underline; cursor: pointer; }
.admin-form { display: grid; gap: 21px; }
.admin-form > label { display: grid; gap: 8px; color: var(--color-muted); font-size: .78rem; }
.admin-form input:not([type=checkbox]), .admin-form textarea { width: 100%; padding: 12px 13px; border: 1px solid var(--color-line); border-radius: 0; background: var(--color-surface); color: var(--color-text); font: inherit; font-size: .9rem; }
.admin-form textarea { resize: vertical; line-height: 1.6; }
.admin-form input:focus, .admin-form textarea:focus { outline: 1px solid var(--color-accent); }
.admin-form small, .admin-label-note { color: var(--color-faint); font-size: .72rem; }
.admin-form fieldset { display: flex; flex-wrap: wrap; gap: 12px 22px; padding: 14px; border: 1px solid var(--color-line); }
.admin-form legend { padding: 0 7px; color: var(--color-muted); font-size: .78rem; }
.admin-form .admin-checkbox { display: inline-flex; align-items: center; gap: 8px; color: var(--color-text); font-size: .82rem; }
.admin-form-actions { justify-content: flex-start; flex-wrap: wrap; margin-top: 2px; }
.admin-delete { margin-left: auto; color: var(--color-accent); }
.admin-error { padding: 12px 14px; border-left: 2px solid var(--color-accent); color: var(--color-accent); font-size: .84rem; }
.admin-notice { margin: 0 0 22px; padding: 13px 15px; border-left: 2px solid var(--color-accent); background: var(--color-surface); color: var(--color-text); font-size: .86rem; }
.admin-empty { padding: 28px 0; color: var(--color-muted); }
.admin-post-list { border-top: 1px solid var(--color-line); }
.admin-post-row { padding: 22px 0; border-bottom: 1px solid var(--color-line); }
.admin-post-row h2 { margin: 8px 0 4px; font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; }
.admin-post-row h2 a { color: var(--color-text); text-decoration: none; }
.admin-post-row p, .admin-post-row time { margin: 0; color: var(--color-faint); font-family: var(--font-mono); font-size: .68rem; }
.admin-status { color: var(--color-muted); font-family: var(--font-mono); font-size: .65rem; text-transform: uppercase; letter-spacing: .06em; }
.admin-status--published { color: var(--color-accent); }
@media (max-width: 560px) { .admin-title-row, .admin-post-row { align-items: flex-start; flex-direction: column; } .admin-title-row { margin-top: 48px; } .admin-post-row time { margin-top: -10px; } }

/* Page footer and social/contact links. */
.journal-footer { padding: 21px 0 29px; border-top: 1px solid var(--color-line); color: var(--color-faint); font-family: var(--font-body); font-size: .76rem; }
.site-footer__inner { display: flex; justify-content: space-between; gap: 20px; }
.site-footer__inner > span { min-width: 0; }
.site-footer__inner > span:last-child { overflow-wrap: anywhere; }
.journal-footer a { text-decoration: none; }

/* Responsive behavior shared by page components. */
@media (max-width: 700px) {
  :root { --page-gutter: 22px; }
  .masthead { min-height: 68px; }
  .site-nav { gap: 16px; font-size: .64rem; }
  .site-nav a:nth-last-child(-n+2) { display: none; }
  .journal-hero { grid-template-columns: minmax(0, 1fr) 140px; gap: 20px; padding: 68px 0 32px; }
  .site-backdrop { width: clamp(110px, 22vw, 140px); opacity: .36; }
  .display-heading { font-size: clamp(2.6rem, 8.4vw, 3.8rem); }
  .journal-interests { gap: 12px; padding-bottom: 26px; }
}

@media (max-width: 460px) {
  :root { --page-gutter: 18px; }
  .site-wordmark { gap: 8px; }
  .site-wordmark__name { font-size: .8rem; }
  .site-nav { gap: 13px; }
  .journal-hero { padding-top: 58px; }
  .journal-hero { grid-template-columns: 1fr; }
  .site-backdrop { position: absolute; top: 4%; right: 0; grid-column: auto; grid-row: auto; width: clamp(100px, 30vw, 130px); opacity: .24; }
  .display-heading { font-size: clamp(2.4rem, 9vw, 3rem); }
  .hero__intro { font-size: 1.03rem; }
  .site-footer__inner { flex-direction: column; gap: 9px; }
}

/* OS-preference themes: square graph in dark, diagonal facets in light. */
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --color-bg: #f4f4f2;
    --color-text: #161616;
    --color-muted: #4b4b4b;
    --color-faint: #777;
    --color-line: #d1d1ce;
    --color-accent: #ce202e;
    --color-accent-hover: #a91724;
    --color-ruby: #ce202e;
    --color-crystal: #ce202e;
    --geometry-line: rgba(18, 18, 18, .28);
    --geometry-red: rgba(206, 32, 46, .82);
  }
  body {
    background-color: var(--color-bg);
    background-image:
      linear-gradient(to bottom, transparent 35rem, var(--color-bg) 78rem),
      linear-gradient(45deg, rgba(0, 0, 0, .015) 1px, transparent 1px),
      linear-gradient(-45deg, rgba(0, 0, 0, .015) 1px, transparent 1px);
    background-size: auto, 72px 72px, 72px 72px;
    background-repeat: no-repeat, repeat, repeat;
  }
}