/* ---------------------------------------------------------------
   Personal site — shared stylesheet
   Every page (landing, writing index, individual posts) uses this.
   Change the tokens in :root to re-skin the whole site at once.
   --------------------------------------------------------------- */

:root {
  /* Palette */
  --bg:        #06131a;
  --bg-soft:   #0c2230;
  --surface:   rgba(255, 255, 255, 0.04);
  --border:    rgba(255, 255, 255, 0.10);
  --text:      #eefaff;
  --text-dim:  #9db6c4;

  /* Accents — the "bold & colorful" part */
  --accent-1:  #2ce68f;   /* spring green */
  --accent-2:  #12dcc6;   /* aqua         */
  --accent-3:  #3fbdf8;   /* sky blue     */
  --accent-4:  #6f8cff;   /* indigo       */

  /* Stops run in hue order (green → aqua → sky → indigo) so the blend
     stays saturated. Jumping across the wheel blends through gray. */
  --gradient: linear-gradient(100deg, var(--accent-1), var(--accent-2) 22%, var(--accent-3) 52%, var(--accent-4) 82%);

  /* Type */
  --font-display: "Space Grotesk", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Layout */
  --measure: 44rem;      /* comfortable reading width */
  --radius:  14px;
}

/* Respect a light-mode preference without losing the bold feel. */
@media (prefers-color-scheme: light) {
  :root {
    --bg:       #fbfeff;
    --bg-soft:  #e9f6fa;
    --surface:  rgba(6, 19, 26, 0.03);
    --border:   rgba(6, 19, 26, 0.12);
    --text:     #06202b;
    --text-dim: #4c6472;

    /* Deeper accents — the dark-mode values go pastel on a white page. */
    --accent-1: #0f9d63;
    --accent-2: #0a8d84;
    --accent-3: #0b6fa8;
    --accent-4: #3c4fd0;
  }
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient colored glow behind everything. Purely decorative. */
body::before {
  content: "";
  position: fixed;
  inset: -30vmax;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 18% 12%, color-mix(in srgb, var(--accent-1) 55%, transparent), transparent 62%),
    radial-gradient(34vmax 34vmax at 85% 22%, color-mix(in srgb, var(--accent-4) 55%, transparent), transparent 62%),
    radial-gradient(30vmax 30vmax at 55% 85%, color-mix(in srgb, var(--accent-3) 42%, transparent), transparent 62%);
  filter: blur(20px);
  animation: drift 26s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(-2%, -1%, 0) scale(1);    }
  to   { transform: translate3d( 3%,  2%, 0) scale(1.08); }
}

/* ---------- Layout shell ---------- */

.wrap {
  width: min(100% - 2.5rem, var(--measure));
  margin-inline: auto;
}

.site-header {
  padding: 2rem 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--text);
}
.wordmark span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}
.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent-2);
}

/* ---------- Hero ---------- */

.hero { padding: clamp(3rem, 12vh, 7rem) 0 3rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-3);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 9vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin: 0 0 1.25rem;
  background: var(--gradient);
  background-size: 112% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shift 9s ease-in-out infinite alternate;
}

@keyframes shift {
  from { background-position:   0% center; }
  to   { background-position: 100% center; }
}

.hero .lede {
  font-size: clamp(1.1rem, 2.6vw, 1.35rem);
  color: var(--text-dim);
  max-width: 34rem;
  margin: 0;
}
.hero .lede strong { color: var(--text); font-weight: 600; }

/* ---------- Link cards ---------- */

.links {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 620px) {
  .links { grid-template-columns: 1fr 1fr; }
}

.links a {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

/* Gradient edge that wipes in on hover. */
.links a::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.links a:hover { transform: translateY(-2px); }
.links a:hover::after { opacity: 1; }
.links a:focus-visible { outline: 2px solid var(--accent-3); outline-offset: 3px; }

.links .icon {
  font-size: 1.25rem;
  line-height: 1;
  flex: 0 0 auto;
}
.links .label { font-weight: 600; }
.links .sub {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 400;
}

/* ---------- Quick links (homepage dashboard rows) ---------- */

/* Denser than the hero .links cards — these are for scanning, not reading. */
.quicklinks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
  grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
}

/* Let each chip fill its grid cell so a two-line label doesn't leave
   the rest of the row short. */
.quicklinks li { display: flex; }
.quicklinks li > a { flex: 1; }

.quicklinks a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--chip, var(--accent-3));
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.3;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.quicklinks a:hover {
  transform: translateY(-2px);
  background: color-mix(in srgb, var(--chip, var(--accent-3)) 12%, transparent);
  border-color: var(--chip, var(--accent-3));
}
.quicklinks a:focus-visible { outline: 2px solid var(--chip, var(--accent-3)); outline-offset: 3px; }
.quicklinks .icon { font-size: 1.05rem; flex: 0 0 auto; }

/* Section heading with a short gradient rule under it. */
.section-head { margin-bottom: 1.25rem; }
.section-head h2 { margin: 0 0 0.4rem; }
.section-head::after {
  content: "";
  display: block;
  width: 3rem;
  height: 3px;
  border-radius: 2px;
  background: var(--gradient);
}
.section-head p {
  margin: 0.5rem 0 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- Generic sections ---------- */

section { padding: 3rem 0; }

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

a { color: var(--accent-3); }
a:hover { color: var(--accent-2); }

/* ---------- Writing / blog (ready for when you add posts) ---------- */

.post-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.5rem; }

.post-list article {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.post-list h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 0 0.35rem;
}
.post-list h3 a { color: var(--text); text-decoration: none; }
.post-list h3 a:hover {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.post-list p { margin: 0.35rem 0 0; color: var(--text-dim); }

time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

/* Article body — used by individual posts. */
.post-body { max-width: var(--measure); }
.post-body h2 { margin-top: 2.5rem; }
.post-body p  { margin: 0 0 1.25rem; }
.post-body blockquote {
  margin: 1.75rem 0;
  padding-left: 1.25rem;
  border-left: 3px solid var(--accent-1);
  color: var(--text-dim);
  font-size: 1.1rem;
}
.post-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.post-body code { font-family: var(--font-mono); font-size: 0.92em; }

/* Images — drop files in /images and they will size correctly. */
figure { margin: 2rem 0; }
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
figcaption {
  margin-top: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-dim);
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 4rem 0 3rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

/* ---------- Entrance animation ---------- */

/* Only hide things when JS is confirmed running (the <html class="js">
   flag is set by an inline script in <head>). With JS off, .reveal
   elements are simply visible from the start. */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.is-visible { opacity: 1; transform: none; }