@charset "UTF-8";
/* ==========================================================
   dandelion sea
   paper editorial theme + terminal accents
   light/dark via css tokens · no webfonts · no dependencies
   ========================================================== */
/* --- tokens ---------------------------------------------- */
:root {
  --paper: #fbfaf7;
  --paper-2: #f4f1ea;
  --paper-trans: rgba(251, 250, 247, .84);
  --ink: #201d19;
  --ink-2: #56524a;
  --ink-3: #8d877c;
  --line: #e6e1d6;
  --line-strong: #d8d2c4;
  --accent: #0e766e;
  --accent-ink: #0b5f59;
  --accent-soft: rgba(14, 118, 110, .09);
  --code-bg: #f3efe7;
  --code-str: #996a1f;
  --code-num: #a15c1f;
  --code-err: #b3261e;
  --sea-ink: #3b3833;
  --sea-glow: #0d9488;
  --sea-1: rgba(15, 118, 110, .05);
  --sea-2: rgba(15, 118, 110, .12);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
    "Songti SC", "SimSun", "Noto Serif CJK SC", serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1112;
    --paper-2: #151a1c;
    --paper-trans: rgba(14, 17, 18, .84);
    --ink: #e9e6de;
    --ink-2: #a9a49a;
    --ink-3: #6f6a61;
    --line: #242a2c;
    --line-strong: #333a3d;
    --accent: #5eead4;
    --accent-ink: #8ff2e0;
    --accent-soft: rgba(94, 234, 212, .10);
    --code-bg: #151a1d;
    --code-str: #e8c07a;
    --code-num: #eab676;
    --code-err: #f27066;
    --sea-ink: #d5d0c4;
    --sea-glow: #5eead4;
    --sea-1: rgba(45, 212, 191, .06);
    --sea-2: rgba(45, 212, 191, .16);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1112;
  --paper-2: #151a1c;
  --paper-trans: rgba(14, 17, 18, .84);
  --ink: #e9e6de;
  --ink-2: #a9a49a;
  --ink-3: #6f6a61;
  --line: #242a2c;
  --line-strong: #333a3d;
  --accent: #5eead4;
  --accent-ink: #8ff2e0;
  --accent-soft: rgba(94, 234, 212, .10);
  --code-bg: #151a1d;
  --code-str: #e8c07a;
  --code-num: #eab676;
  --code-err: #f27066;
  --sea-ink: #d5d0c4;
  --sea-glow: #5eead4;
  --sea-1: rgba(45, 212, 191, .06);
  --sea-2: rgba(45, 212, 191, .16);
  color-scheme: dark;
}

/* --- base ------------------------------------------------ */
* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

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

a:hover {
  color: var(--accent-ink);
}

::selection {
  background: var(--accent-soft);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

img {
  max-width: 100%;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.4em 0;
}

.mono {
  font-family: var(--mono);
}

/* --- masthead -------------------------------------------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper-trans);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px 20px;
  flex-wrap: wrap;
  padding-top: 12px;
  padding-bottom: 12px;
}

.wordmark {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .01em;
  color: var(--ink);
}

.wordmark:hover {
  color: var(--ink);
}

.wordmark .mark {
  font-family: var(--mono);
  color: var(--accent);
  margin-right: 7px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.nav a {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-2);
}

.nav a:hover {
  color: var(--accent);
}

.theme-toggle {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1;
  color: var(--ink-3);
  background: none;
  border: 0;
  padding: 2px;
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--accent);
}

/* --- terminal accents ------------------------------------ */
.prompt {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--ink-3);
}

.prompt .ps1 {
  color: var(--accent);
  font-weight: 600;
}

.prompt-note {
  margin-left: auto;
  font-size: 11.5px;
  opacity: .85;
}

.cursor {
  color: var(--accent);
  font-size: 13px;
  margin-left: -3px;
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}
/* --- hero ------------------------------------------------ */
.hero {
  padding-top: 58px;
  min-height: calc(100vh - 50px);
  min-height: calc(100svh - 50px);
  display: flex;
  flex-direction: column;
}

.hero-grid {
  max-width: 900px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  column-gap: 56px;
  align-items: start;
}

.hero-photo {
  margin: 6px 0 0;
}

.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05), 0 14px 34px -18px rgba(30, 28, 24, 0.35);
  background: var(--paper-2);
}

.hero-photo figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--ink-3);
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-photo img {
    filter: brightness(0.85) contrast(0.97);
  }
}
:root[data-theme="dark"] .hero-photo img {
  filter: brightness(0.85) contrast(0.97);
}

.hero-name {
  margin: 0 0 10px;
  font-size: clamp(30px, 5.2vw, 40px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--ink);
}

.hero-alias {
  font-weight: 400;
  font-size: .6em;
  letter-spacing: .01em;
  color: var(--ink-3);
}

.hero-role {
  margin: 0 0 14px;
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink-2);
}

.hero-edu {
  margin: 0 0 18px;
  font-size: 12.5px;
  line-height: 2;
  color: var(--ink-3);
}

.hero-offline {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-3);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin: 0;
  font-size: 13px;
}

.hero-links a {
  color: var(--ink-2);
}

.hero-links a:hover {
  color: var(--accent);
}

/* --- sea (full-viewport background) ----------------------- */
.sea-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 42%, var(--sea-1) 76%, var(--sea-2) 100%);
}

.sea-bg canvas {
  display: block;
  width: 100%;
  height: 100%;
}

main,
.footer {
  position: relative;
  z-index: 1;
}

.sea-hint {
  margin: auto auto 26px;
  align-self: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--ink-3);
  pointer-events: none;
  transition: opacity .8s ease;
  white-space: nowrap;
}

.sea-hint--off {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .sea-hint {
    display: none;
  }

  html {
    scroll-behavior: auto;
  }
}
/* --- posts list ------------------------------------------ */
.posts {
  padding-top: 66px;
}

.post-row {
  display: grid;
  grid-template-columns: 6.6em 1fr;
  column-gap: 22px;
}

.post-row + .post-row {
  border-top: 1px solid var(--line);
}

.post-row {
  padding: 19px 0 23px;
}

.post-row time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  padding-top: 5px;
}

.post-row h2 {
  margin: 0;
  font-size: 17.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -.005em;
}

.post-row h2 a {
  color: var(--ink);
}

.post-row h2 a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.post-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* --- post page ------------------------------------------- */
.container.post {
  max-width: 680px;
}

.post {
  padding-top: 48px;
}

.post-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 0 0 28px;
  font-size: 12.5px;
}

.post-top a {
  color: var(--ink-3);
}

.post-top a:hover {
  color: var(--accent);
}

.post-http {
  color: var(--ink-3);
  opacity: .7;
}

.post-title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: clamp(26px, 4.6vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0 0 32px;
  font-size: 12.5px;
  color: var(--ink-3);
}

.tag {
  color: var(--ink-3);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.post-nav a {
  color: var(--ink-2);
  max-width: 48%;
}

.post-nav a:hover {
  color: var(--accent);
}

/* --- entry (reading) ------------------------------------- */
.entry {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.9;
  color: var(--ink);
}

.entry p {
  margin: 0 0 1.45em;
}

.entry h1,
.entry h2,
.entry h3,
.entry h4 {
  font-family: var(--sans);
  line-height: 1.35;
  letter-spacing: -.01em;
  margin: 2em 0 .7em;
}

.entry h1 {
  font-size: 26px;
}

.entry h2 {
  font-size: 22px;
}

.entry h3 {
  font-size: 19px;
}

.entry h4 {
  font-size: 17px;
}

.entry ul,
.entry ol {
  margin: 0 0 1.45em;
  padding-left: 1.5em;
}

.entry li {
  margin: .35em 0;
}

.entry blockquote {
  margin: 1.9em 0;
  padding: 2px 0 2px 18px;
  border-left: 2px solid var(--accent);
  color: var(--ink-2);
  font-style: italic;
  font-size: 1.05em;
}

.entry blockquote p:last-child {
  margin-bottom: 0;
}

.entry img {
  display: block;
  margin: 1.7em auto;
  border: 1px solid var(--line);
  border-radius: 3px;
}

.entry code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: .1em .38em;
}

.entry pre {
  margin: 0 0 1.45em;
  padding: 14px 16px;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.65;
}

.entry pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
}

/* --- rouge (minimal set) --------------------------------- */
.highlight .c,
.highlight .c1,
.highlight .cm {
  color: var(--ink-3);
  font-style: italic;
}

.highlight .k,
.highlight .kd,
.highlight .kn,
.highlight .kr {
  color: var(--accent);
  font-weight: 600;
}

.highlight .s,
.highlight .s1,
.highlight .s2,
.highlight .sb {
  color: var(--code-str);
}

.highlight .mi,
.highlight .mf,
.highlight .m {
  color: var(--code-num);
}

.highlight .nf,
.highlight .nc {
  font-weight: 600;
}

.highlight .o,
.highlight .p {
  color: var(--ink-2);
}

.highlight .err {
  color: var(--code-err);
}

/* --- page (about / 404) ---------------------------------- */
.page {
  padding-top: 48px;
}

.facts {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 24px;
  row-gap: 10px;
  margin: 2.8em 0 0;
  font-size: 13px;
  line-height: 1.7;
}

.facts dt {
  color: var(--ink-3);
  text-align: right;
}

.facts dd {
  margin: 0;
  color: var(--ink);
}

.notfound {
  padding-top: 8px;
}

.notfound-hero {
  padding-top: 48px;
  min-height: calc(100vh - 50px);
  min-height: calc(100svh - 50px);
  display: flex;
  flex-direction: column;
}

.notfound h1 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 30px);
  font-weight: 700;
  letter-spacing: -.01em;
}

.notfound p {
  margin: 0 0 14px;
  color: var(--ink-2);
}

/* --- footer ---------------------------------------------- */
.footer {
  margin-top: 92px;
  border-top: 1px solid var(--line);
  padding: 26px 0 42px;
}

.footer p {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .02em;
  text-align: center;
  color: var(--ink-3);
}

/* --- responsive ------------------------------------------ */
@media screen and (max-width: 800px) {
  .hero-grid {
    grid-template-columns: 1fr;
    row-gap: 34px;
  }

  .hero-photo {
    max-width: 300px;
    width: 100%;
    margin: 0 auto;
  }
}
@media screen and (max-width: 640px) {
  .hero {
    padding-top: 40px;
  }

  .hero-links {
    gap: 18px;
  }

  .post-row {
    grid-template-columns: 1fr;
    row-gap: 5px;
  }

  .post-row time {
    padding-top: 0;
  }

  .post-nav a {
    max-width: 100%;
  }

  .facts {
    grid-template-columns: 1fr;
    row-gap: 2px;
  }

  .facts dt {
    text-align: left;
  }
}
/* --- print ------------------------------------------------ */
@media print {
  .masthead, .sea-wrap, .footer, .post-nav, .theme-toggle {
    display: none;
  }

  body {
    font-size: 12pt;
  }
}