/* ------------------------------------------------------------------
   eddiekong.com — shared stylesheet
   Placeholder site: the layout is the skeleton for a future personal
   page; only the copy is about the dog for now.
   ------------------------------------------------------------------ */

/* ---------- tokens ----------
   Light palette lives on bare :root. The dark values are declared twice
   on purpose: once for people who never touch the toggle (system
   preference), once for people who did (data-theme). The :not() guard
   lets an explicit "light" choice win over a dark system setting.      */

:root {
  --ground:   #faf9f7;
  --ink:      #1a1a1a;
  --muted:    #6b6b6b;
  --hairline: #e2ded8;
  --accent:   #3a5a78;
  --panel:    #f2efe9;
  --shadow:   rgba(26, 26, 26, .08);

  --serif: Georgia, "Times New Roman", serif;
  --sans:  system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  --mono:  ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:   #14151a;
    --ink:      #ece9e4;
    --muted:    #9a978f;
    --hairline: #2e3038;
    --accent:   #8fb4d4;
    --panel:    #1c1e25;
    --shadow:   rgba(0, 0, 0, .4);
  }
}

:root[data-theme="dark"] {
  --ground:   #14151a;
  --ink:      #ece9e4;
  --muted:    #9a978f;
  --hairline: #2e3038;
  --accent:   #8fb4d4;
  --panel:    #1c1e25;
  --shadow:   rgba(0, 0, 0, .4);
}

/* ---------- base ---------- */

* { box-sizing: border-box; }

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
  font-family: var(--serif);
  font-weight: 400;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 4rem);
}

.eyebrow {
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: var(--ground);
  border: 1px solid var(--accent);
  padding: .5rem .9rem;
}

/* ---------- nav ---------- */

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--hairline);
}

.nav-home {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
  margin-left: auto;
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-links a[aria-current="page"] {
  box-shadow: 0 1px 0 var(--accent);
}

.theme-toggle {
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .78rem;
  line-height: 1;
  padding: .45rem .7rem;
  cursor: pointer;
  border-radius: 2px;
}

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

/* ---------- page heads ---------- */

.page-head {
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-head h1 {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: 0;
}

.page-head p {
  color: var(--muted);
  max-width: 58ch;
  margin: 1rem 0 0;
}

/* ---------- hero (home) ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(3rem, 7vw, 5rem);
}

.hero h1 {
  font-size: clamp(2.75rem, 8vw, 6rem);
  line-height: .98;
  letter-spacing: -.02em;
  margin: 0;
}

.deck {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  color: var(--muted);
  margin: 1.25rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
}

.lede {
  margin: 1.75rem 0 0;
  max-width: 46ch;
}

.portrait {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1280 / 1718;
  object-fit: cover;
  background: var(--panel);
}

figure { margin: 0; }

figcaption {
  font-size: .82rem;
  font-style: italic;
  color: var(--muted);
  margin-top: .7rem;
}

/* ---------- stat strip ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin: 0;
}

.stat {
  padding: 1.5rem 1.25rem;
  border-left: 1px solid var(--hairline);
}

.stat:first-child { border-left: 0; padding-left: 0; }

.stat dt {
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .45rem;
}

.stat dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.35;
}

/* ---------- numbered chapters ---------- */

section.chapter {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0 2rem;
  padding: clamp(2.75rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--hairline);
}

.num {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: .1em;
  padding-top: .55rem;
}

.chapter h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 0 0 1rem;
}

.chapter p {
  max-width: 62ch;
  margin: 0 0 1.05rem;
}

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

.note {
  margin-top: 1.75rem;
  padding: 1.25rem 1.4rem;
  background: var(--panel);
  border-left: 2px solid var(--accent);
  max-width: 62ch;
}

.note strong {
  display: block;
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .5rem;
}

.note p { font-size: .95rem; }

/* ---------- click-to-load embeds ---------- */

.embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--panel);
  border: 1px solid var(--hairline);
  overflow: hidden;
}

.embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.embed-launch {
  position: absolute;
  inset: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: 1.5rem;
  background: transparent;
  border: 0;
  color: var(--ink);
  font: inherit;
  text-align: center;
  cursor: pointer;
}

.embed-launch:hover { background: var(--shadow); }

.embed-play {
  width: 3.25rem;
  height: 3.25rem;
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 1rem;
  line-height: 1;
}

.embed-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  max-width: 34ch;
}

.embed-host {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.embed-caption {
  font-size: .82rem;
  font-style: italic;
  color: var(--muted);
  margin: .7rem 0 0;
}

.embed-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* ---------- gallery ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  margin: 0;
  list-style: none;
}

.gallery li { margin: 0; }

.gallery button {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--hairline);
  background: var(--panel);
  cursor: zoom-in;
}

.gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.gallery figcaption { padding: 0 0 .2rem; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(10, 10, 12, .92);
}

.lightbox[open],
.lightbox.is-open { display: flex; }

.lightbox img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
}

.lightbox-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.25rem;
  text-align: center;
  color: #d8d5cf;
  font-size: .85rem;
  font-style: italic;
  padding: 0 1.5rem;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: transparent;
  border: 1px solid #6a6a6a;
  color: #e8e5e0;
  font: inherit;
  padding: .3rem .7rem;
  cursor: pointer;
}

/* ---------- charts / numbers page ---------- */

.chart {
  margin: 0 0 2.5rem;
  max-width: 42rem;
}

.chart h3 {
  font-size: 1.05rem;
  margin: 0 0 .2rem;
}

.chart-note {
  font-size: .82rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.chart-bar-track { fill: var(--panel); }
.chart-bar-fill  { fill: var(--accent); }
.chart-label     { fill: var(--ink); font-size: 13px; font-family: var(--sans); }
.chart-value     { fill: var(--muted); font-size: 12px; font-family: var(--sans); }
.chart-axis      { stroke: var(--hairline); stroke-width: 1; }

.swatches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1.25rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.swatch-chip {
  height: 4.5rem;
  border: 1px solid var(--hairline);
}

.swatch h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1rem;
  margin: .6rem 0 .2rem;
}

.swatch p {
  font-size: .82rem;
  color: var(--muted);
  margin: 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .92rem;
  margin-bottom: 2rem;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: .7rem .9rem .7rem 0;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}

.data-table th {
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
}

.table-scroll { overflow-x: auto; }

/* ---------- blog ---------- */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0 0 clamp(2rem, 5vw, 3.5rem);
}

.post-list li {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--hairline);
}

.post-list h2 {
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  margin: .3rem 0 .5rem;
}

.post-list h2 a {
  color: var(--ink);
  text-decoration: none;
}

.post-list h2 a:hover { color: var(--accent); }

.post-list p {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
}

.post-meta {
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.article {
  max-width: 40rem;
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

/* A full sentence set in the uppercase .post-meta style is unreadable;
   closing notes get their own quieter treatment. */
.footnote {
  margin-top: 2.75rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--hairline);
  font-size: .85rem;
  font-style: italic;
  color: var(--muted);
}

.article h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: .5rem 0 1rem;
}

.article h2 {
  font-size: 1.4rem;
  margin: 2.25rem 0 .75rem;
}

.article p { margin: 0 0 1.05rem; }

.article ul { padding-left: 1.2rem; }

.article li { margin-bottom: .4rem; }

.article blockquote {
  margin: 1.75rem 0;
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
  font-family: var(--serif);
  font-style: italic;
  color: var(--muted);
}

/* ---------- search ---------- */

.search-form { padding-bottom: 1.5rem; }

.search-input {
  width: 100%;
  max-width: 32rem;
  font: inherit;
  color: var(--ink);
  background: var(--ground);
  border: 1px solid var(--hairline);
  border-bottom-width: 2px;
  padding: .7rem .9rem;
}

.search-input:focus {
  border-bottom-color: var(--accent);
  outline: none;
}

.search-status {
  font-size: .82rem;
  color: var(--muted);
  margin: .8rem 0 0;
}

.search-results {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0 0 clamp(2rem, 5vw, 3.5rem);
}

.search-results li {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--hairline);
}

.search-results h2 {
  font-size: 1.15rem;
  margin: 0 0 .3rem;
}

.search-results h2 a {
  color: var(--ink);
  text-decoration: none;
}

.search-results h2 a:hover { color: var(--accent); }

.search-results p {
  margin: 0;
  font-size: .9rem;
  color: var(--muted);
}

.search-results mark {
  background: var(--panel);
  color: var(--ink);
  padding: 0 .15em;
}

/* ---------- contact / misc ---------- */

.button-link {
  display: inline-block;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  padding: .55rem 1.1rem;
  font-size: .85rem;
  letter-spacing: .04em;
}

.button-link:hover {
  background: var(--accent);
  color: var(--ground);
}

.downloads {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  font-size: .9rem;
}

.downloads li { margin-bottom: .45rem; }

.downloads code {
  font-family: var(--mono);
  font-size: .85em;
  color: var(--muted);
}

/* ---------- footer ---------- */

footer.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 2.5rem 0 4rem;
  font-size: .82rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  justify-content: space-between;
}

footer.site-footer p { margin: 0; }

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

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

/* ---------- narrow ---------- */

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .stat {
    border-top: 1px solid var(--hairline);
    padding: 1.1rem 1rem;
  }

  .stat:nth-child(-n+2) { border-top: 0; }
  .stat:nth-child(odd)  { border-left: 0; padding-left: 0; }

  section.chapter {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .num { padding: 0 0 .35rem; }

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

  .nav-links {
    margin-left: 0;
    width: 100%;
    order: 3;
    font-size: .76rem;
    gap: .9rem;
  }

  .theme-toggle { margin-left: auto; }
}

/* ---------- print ----------
   Everything interactive is noise on paper; embeds print as their
   caption text instead of an empty grey box.                       */

@media print {
  :root {
    --ground: #fff;
    --ink: #000;
    --muted: #444;
    --hairline: #bbb;
    --accent: #000;
    --panel: #f2f2f2;
  }

  .nav,
  .theme-toggle,
  .skip-link,
  .embed,
  .search-form,
  .lightbox,
  .site-footer a[data-github-updated] {
    display: none !important;
  }

  body { font-size: 11pt; }

  .wrap { max-width: none; padding: 0; }

  section.chapter { break-inside: avoid; page-break-inside: avoid; }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: .8em;
    color: #555;
  }
}