/* héctor — shared styles */

/* self-hosted Newsreader (latin subset) — https://fontsource.org / bunny fonts, OFL */
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/newsreader-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/newsreader-latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Newsreader";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/newsreader-latin-400-italic.woff2") format("woff2");
}

:root {
  --bg: #f2f0e9;
  --fg: #24241f;
  --muted: #75736a;
  --line: #dfdccf;
  --accent: #4a5d4e; /* muted olive, barely there */
  --noise: 0.045;

  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, monospace;
}

/* dark theme — via the nav toggle (data-theme on <html>); default follows the system preference */
:root[data-theme="dark"] {
  --bg: #262622;
  --fg: #e3e0d7;
  --muted: #a5a296;
  --line: #42423b;
  --accent: #a8b5a3;
  --noise: 0.05;
}

/* --- accent palettes (chosen via the swatches, stored in localStorage) --- */

:root[data-palette="slate"] {
  --accent: #4c5f72;
}

:root[data-palette="clay"] {
  --accent: #8a5a44;
}

:root[data-palette="graphite"] {
  --accent: #565652;
}

:root[data-theme="dark"][data-palette="slate"] {
  --accent: #9db0c4;
}

:root[data-theme="dark"][data-palette="clay"] {
  --accent: #c69a80;
}

:root[data-theme="dark"][data-palette="graphite"] {
  --accent: #b3b3ad;
}

/* page-to-page cross-fade (supported browsers; no-op elsewhere) */
@view-transition {
  navigation: auto;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 19px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-serif);
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* paper grain — inline svg noise, no external image, no js */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: var(--noise);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* scroll progress line — css scroll-driven, hidden where unsupported */

@supports (animation-timeline: scroll()) {
  .progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: 0 50%;
    animation: progress-grow linear both;
    animation-timeline: scroll(root block);
    z-index: 10;
    pointer-events: none;
  }

  @keyframes progress-grow {
    to {
      transform: scaleX(1);
    }
  }
}

main {
  position: relative;
  z-index: 0;
  flex: 1;
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2rem;
}

/* header / nav — monospace, lowercase, roomy */

header {
  margin-bottom: 2.5rem;
}

.site-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  color: var(--muted);
  margin: 0 0 0.9rem;
}

nav {
  display: flex;
  gap: 1.75rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.8rem;
}

nav a {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: var(--muted);
  text-decoration: none;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -0.8rem; /* sit the underline on the nav rule */
  transition: color 0.25s ease, border-color 0.25s ease;
}

nav a:hover {
  color: var(--fg);
  border-bottom-color: var(--muted);
}

nav a[aria-current="page"] {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* palette swatches + theme toggle */

.controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.palette {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.theme-toggle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  color: var(--fg);
  border-color: var(--muted);
}

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

.swatch {
  width: 0.72rem;
  height: 0.72rem;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--sw);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.swatch:hover {
  transform: scale(1.2);
}

.swatch[aria-pressed="true"] {
  border-color: var(--fg);
  transform: scale(1.2);
}

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

.sw-olive { --sw: #4a5d4e; }
.sw-slate { --sw: #4c5f72; }
.sw-clay { --sw: #8a5a44; }
.sw-graphite { --sw: #565652; }

/* typography */

h1 {
  font-size: 1.7rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent);
  margin: 2.2rem 0 0.6rem;
}

h3 {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--accent);
  margin: 1.6rem 0 0.4rem;
}

p {
  margin: 0 0 1.1rem;
}

a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--muted);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s ease;
}

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

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.8em;
}

pre {
  background: color-mix(in srgb, var(--line) 45%, transparent);
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  border-radius: 4px;
}

blockquote {
  margin: 1.2rem 0;
  padding-left: 1.1rem;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-style: italic;
}

/* works index */

ul.works {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

ul.works li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

ul.works li:first-child {
  border-top: 1px solid var(--line);
}

ul.works a.title {
  display: block;
  font-size: 1.15rem;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

ul.works a.title:hover {
  color: var(--accent);
  text-decoration: none;
  transform: translateX(4px);
}

ul.works .meta {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

ul.works .summary {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0.35rem 0 0;
}

/* single post page */

article.post header {
  margin-bottom: 1.5rem;
}

article.post h1 {
  margin-bottom: 0.3rem;
}

article.post .meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.backlink {
  display: inline-block;
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* scroll reveals — css view-driven, static where unsupported */

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    ul.works li,
    article.post > * {
      animation: reveal linear both;
      animation-timeline: view();
      animation-range: entry 5% entry 75%;
    }

    @keyframes reveal {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: none;
      }
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* --- background layers -------------------------------------------------
   toggle from <html data-fx="mesh vignette rules hover">; remove a word
   to switch that layer off. all static, pointer-events: none, z-index: -1.
----------------------------------------------------------------------- */

.bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

/* soft vignette: lighter at the top, corners barely pulled in */
:root[data-fx~="vignette"] .bg-vignette {
  background: radial-gradient(
    130% 110% at 50% -5%,
    transparent 50%,
    color-mix(in srgb, var(--fg) 5%, transparent) 100%
  );
}

/* modern: accent-tinted mesh glow, very low contrast, slow drift */
:root[data-fx~="mesh"] .bg-mesh {
  background:
    radial-gradient(42rem 30rem at 12% 8%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
    radial-gradient(38rem 28rem at 88% 85%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%);
  opacity: 0.55;
}

@media (prefers-reduced-motion: no-preference) {
  :root[data-fx~="mesh"] .bg-mesh {
    animation: mesh-drift 70s ease-in-out infinite alternate;
  }
}

@keyframes mesh-drift {
  from {
    transform: translate3d(-1.5%, -1%, 0) scale(1);
  }
  to {
    transform: translate3d(1.5%, 1%, 0) scale(1.06);
  }
}

/* hairline rules flanking the content column, faded at both ends */
:root[data-fx~="rules"] .bg-rules {
  width: min(44rem, 100%);
  inset: 0 auto 0 50%;
  transform: translateX(-50%);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  mask-image: linear-gradient(to bottom, transparent, black 12%, black 75%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 12%, black 75%, transparent);
}

@media (max-width: 48rem) {
  :root[data-fx~="rules"] .bg-rules {
    display: none;
  }
}

/* micro: works entries get a whisper of tint on hover */
:root[data-fx~="hover"] ul.works li {
  padding-inline: 0.9rem;
  margin-inline: -0.9rem;
  transition: background-color 0.25s ease;
}

:root[data-fx~="hover"] ul.works li:hover {
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}

/* hero + home sections */

.hero h1 {
  font-size: 2.6rem;
  letter-spacing: -0.015em;
  margin: 0.2rem 0 0.6rem;
}

.label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.2rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 32rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.9rem;
  margin: 1.2rem 0 0.5rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1rem 1.15rem 0.9rem;
  background: color-mix(in srgb, var(--line) 18%, var(--bg));
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--muted);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--fg) 8%, transparent);
}

.card h3 {
  margin: 0 0 0.3rem;
  font-size: 1rem;
}

.card p {
  margin: 0;
  font-size: 0.92rem;
}

.more-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.more-link:hover {
  color: var(--accent);
}

/* tabbed views — home and works live in one file, switched by url hash.
   Without JS (no data-route on <html>) both sections stay visible. */

html[data-route="home"] .view[data-view="works"],
html[data-route="works"] .view[data-view="home"] {
  display: none;
}

.view {
  animation: view-in 0.3s ease both;
}

@keyframes view-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .view {
    animation: none;
  }
}

/* footer */

footer {
  position: relative;
  z-index: 0;
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}