/* ──────────────────────────────────────────────────────────────────────────
   Nocturne — design-system tokens, carried over from the source design system.
   Retune the look here; everything below builds on these.
   ────────────────────────────────────────────────────────────────────────── */
:root {
  --color-bg: #161826;
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-accent: #9184d9;
  --color-accent-2: #a7a1db;
  --color-divider: color-mix(in srgb, #e9e9ed 16%, transparent);

  /* Tonal ramps — generated in OKLCH on one shared lightness scale, so the
     same step of any role matches the others in visual value. */
  --color-neutral-100: #f3f5fe;
  --color-neutral-200: #e4e7f5;
  --color-neutral-300: #cfd3e5;
  --color-neutral-400: #b2b6ca;
  --color-neutral-500: #9397ab;
  --color-neutral-600: #75798c;
  --color-neutral-700: #595d6c;
  --color-neutral-800: #3f424d;
  --color-neutral-900: #292b31;

  --color-accent-100: #f5f4ff;
  --color-accent-200: #e7e5fe;
  --color-accent-300: #d2cefd;
  --color-accent-400: #b5abfc;
  --color-accent-500: #968ae0;
  --color-accent-600: #796cbf;
  --color-accent-700: #5d5294;
  --color-accent-800: #423a6a;
  --color-accent-900: #2b2741;

  --color-section: #262a60;
  --color-section-glow: #353b80;
  --color-section-ghost: #4c5397;

  --font-heading: "Inter", system-ui, sans-serif;
  --font-heading-weight: 500;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --space-1: 2.8px;
  --space-2: 5.6px;
  --space-3: 8.4px;
  --space-4: 11.2px;
  --space-6: 16.8px;
  --space-8: 22.4px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 0 0 1px #3f424d;
  --shadow-md: 0 0 0 1px #595d6c, 0 6px 18px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 0 0 1px #9397ab, 0 16px 40px rgba(0, 0, 0, 0.65);
}

/* — base — */
*, *::before, *::after { box-sizing: border-box; }
html, body { background: color-mix(in srgb, var(--color-bg) 74%, black); }
body {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}
p { margin: 0 0 var(--space-3); }
img { display: block; max-width: 100%; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: var(--radius-sm); }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.btn-primary { color: var(--color-accent); border-color: var(--color-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.btn-primary:active { background: color-mix(in srgb, var(--color-accent) 22%, transparent); }
.btn-ghost {
  color: var(--color-neutral-400);
  border-color: color-mix(in srgb, var(--color-text) 14%, transparent);
}
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); color: var(--color-accent-300); }
.btn-ghost:active { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }

/* ──────────────────────────────────────────────────────────────────────────
   Site
   ────────────────────────────────────────────────────────────────────────── */
.page {
  min-height: 100vh;
  background:
    radial-gradient(1300px 680px at 12% -14%, color-mix(in srgb, var(--color-accent) 16%, transparent), transparent 66%),
    radial-gradient(900px 700px at 100% 22%, color-mix(in srgb, var(--color-accent) 9%, transparent), transparent 62%),
    radial-gradient(1100px 600px at 50% 108%, color-mix(in srgb, var(--color-section-glow) 26%, transparent), transparent 70%),
    linear-gradient(to bottom,
      color-mix(in srgb, var(--color-bg) 90%, black),
      color-mix(in srgb, var(--color-bg) 60%, black) 55%,
      color-mix(in srgb, var(--color-bg) 72%, black));
  font-size: 16px;
  line-height: 1.6;
  padding: 56px 32px 120px;
}
.shell {
  max-width: 660px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 64px;
}

/* Rules fade out at the right edge — a Nocturne signature. */
.rule {
  height: 1px;
  background: linear-gradient(to right, var(--color-divider), var(--color-divider) calc(100% - 96px), transparent);
}

.mono { font-family: var(--font-mono); }
.eyebrow {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-neutral-500);
}
.section-label {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-accent-400);
}

/* — header — */
.site-header { display: flex; flex-direction: column; gap: 20px; }
.header-row {
  display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-weight: 500; font-size: 17px;
  letter-spacing: -0.01em; color: var(--color-text); text-decoration: none;
  transition: color 140ms ease;
}
.brand:hover { color: var(--color-accent-300); }
.brand-ring {
  display: block; width: 34px; height: 34px; border-radius: 50%; padding: 1.5px;
  background: color-mix(in srgb, var(--color-neutral-200) 85%, transparent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--color-accent) 30%, transparent);
  flex: none;
}
.brand-avatar {
  width: 31px; height: 31px; border-radius: 50%;
  display: grid; place-items: center; object-fit: cover;
  background: linear-gradient(150deg, var(--color-accent-500), var(--color-accent-700));
  color: var(--color-accent-100);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
}
.site-nav {
  display: flex; gap: 22px;
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.02em;
}
.nav-link { color: var(--color-neutral-500); text-decoration: none; transition: color 140ms ease; }
.nav-link:hover, .nav-link.is-active { color: var(--color-accent-300); }

/* — home — */
.view { display: flex; flex-direction: column; gap: 72px; }
.view-inner { display: flex; flex-direction: column; gap: 40px; }
.hero { display: flex; flex-direction: column; gap: 18px; }
.hero-kicker { display: flex; align-items: center; gap: 10px; }
.hero-dash { width: 14px; height: 2px; background: var(--color-accent); display: block; flex: none; }
.hero h1 {
  margin: 0; font-size: 38px; line-height: 1.14; letter-spacing: -0.028em;
  max-width: 22ch; text-wrap: pretty;
}
.hero-sub {
  margin: 0; font-size: 16.5px; color: var(--color-neutral-400);
  max-width: 46ch; text-wrap: pretty;
}
.stack-24 { display: flex; flex-direction: column; gap: 24px; }
.stack-20 { display: flex; flex-direction: column; gap: 20px; }
.stack-14 { display: flex; flex-direction: column; gap: 14px; }
.stack-12 { display: flex; flex-direction: column; gap: 12px; }
.list { display: flex; flex-direction: column; }
.caption {
  font-size: 14px; color: var(--color-neutral-500);
  max-width: 52ch; margin: 0; text-wrap: pretty;
}
.prose { display: flex; flex-direction: column; gap: 14px; max-width: 58ch; }
.prose p { margin: 0; text-wrap: pretty; }
.prose .dim { color: var(--color-neutral-400); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.actions .arrow { font-size: 12px; opacity: 0.8; }

/* — post rows — */
.post-row {
  position: relative; display: grid; grid-template-columns: 34px 1fr auto;
  gap: 16px; align-items: baseline;
  padding: 20px 14px 20px 12px; margin: 0 -14px 0 -12px;
  border-radius: var(--radius-md);
  border-top: 1px solid color-mix(in srgb, var(--color-text) 9%, transparent);
  text-decoration: none; color: var(--color-text);
  transition: background 140ms ease, box-shadow 140ms ease;
}
.post-row:hover {
  background: linear-gradient(to right, color-mix(in srgb, var(--color-accent) 9%, transparent), transparent 70%);
  box-shadow: inset 2px 0 0 var(--color-accent);
}
.post-num {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--color-accent-600); letter-spacing: 0.04em;
}
.post-main { display: flex; flex-direction: column; gap: 6px; }
.post-main.has-meta { gap: 8px; }
.post-title {
  font-family: var(--font-heading); font-weight: 500; font-size: 19px;
  letter-spacing: -0.015em; line-height: 1.25;
}
.post-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.post-tag {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.08em;
  text-transform: lowercase; color: var(--color-accent-300);
  background: color-mix(in srgb, var(--color-accent) 13%, transparent);
  border-radius: 999px; padding: 3px 9px;
}
.post-status {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-neutral-600);
}
.post-date {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--color-neutral-600); white-space: nowrap;
}

/* — writing index — */
.page-title { font-size: 34px; margin: 0; letter-spacing: -0.02em; }
.page-lede {
  margin: 0; font-size: 15px; color: var(--color-neutral-500);
  max-width: 56ch; text-wrap: pretty;
}
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.06em;
  text-transform: lowercase; padding: 7px 12px; border-radius: 999px;
  color: var(--color-neutral-500); background: transparent;
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  transition: color 140ms ease, border-color 140ms ease, background 140ms ease;
}
.filter:hover { color: var(--color-accent-200); border-color: color-mix(in srgb, var(--color-accent) 45%, transparent); }
.filter.is-active {
  color: var(--color-accent-200);
  background: color-mix(in srgb, var(--color-accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--color-accent) 55%, transparent);
}
.filter-count { color: var(--color-neutral-600); }
.empty-note {
  margin: 0; font-family: var(--font-mono); font-size: 13px;
  color: var(--color-neutral-600);
  border-top: 1px solid color-mix(in srgb, var(--color-text) 9%, transparent);
  padding-top: 22px;
}

/* — projects — */
.slot {
  border: 1px dashed color-mix(in srgb, var(--color-text) 16%, transparent);
  border-radius: var(--radius-md); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 8px;
}
.slot-kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-neutral-600);
}
.slot-title {
  font-family: var(--font-heading); font-weight: 500; font-size: 17px;
  color: var(--color-neutral-400);
}
.project-card {
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: var(--radius-md); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 10px;
  text-decoration: none; color: var(--color-text);
  transition: border-color 140ms ease, background 140ms ease;
}
.project-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
  background: color-mix(in srgb, var(--color-accent) 6%, transparent);
}
.project-blurb { margin: 0; font-size: 14.5px; color: var(--color-neutral-400); text-wrap: pretty; }

/* — post — */
.post-view { display: flex; flex-direction: column; gap: 32px; }
.back-link {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--color-neutral-500);
  text-decoration: none; width: fit-content; transition: color 140ms ease;
}
.back-link:hover { color: var(--color-accent-300); }
.post-dateline {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--color-neutral-600);
}
.post-headline { font-size: 36px; margin: 0; letter-spacing: -0.025em; line-height: 1.15; max-width: 24ch; }
.post-body { display: flex; flex-direction: column; gap: 16px; max-width: 62ch; }
.post-body p { margin: 0; text-wrap: pretty; }
.post-body .dim { color: var(--color-neutral-500); }
.draft-box {
  border: 1px dashed color-mix(in srgb, var(--color-text) 16%, transparent);
  border-radius: var(--radius-md); padding: 28px;
  font-family: var(--font-mono); font-size: 13px;
  color: var(--color-neutral-600); line-height: 1.7;
}
.next-block { display: flex; flex-direction: column; gap: 14px; padding-top: 16px; }
.next-link {
  font-family: var(--font-heading); font-weight: 500; font-size: 18px;
  color: var(--color-text); text-decoration: none; width: fit-content;
  transition: color 140ms ease;
}
.next-link:hover { color: var(--color-accent-300); }

/* — footer — */
.site-footer { display: flex; flex-direction: column; gap: 16px; padding-top: 8px; }
.footer-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; font-family: var(--font-mono); font-size: 11.5px; color: var(--color-neutral-600);
}
.footer-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em;
  color: var(--color-neutral-400); text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent);
  border-radius: var(--radius-sm); padding: 6px 10px;
  transition: color 140ms ease, border-color 140ms ease;
}
.footer-link:hover { color: var(--color-accent-300); border-color: color-mix(in srgb, var(--color-accent) 55%, transparent); }

/* — narrow screens — */
@media (max-width: 640px) {
  .page { padding: 40px 20px 88px; }
  .shell { gap: 48px; }
  .view { gap: 56px; }
  .hero h1 { font-size: 31px; }
  .page-title { font-size: 28px; }
  .post-headline { font-size: 28px; }
  .post-row { grid-template-columns: 26px 1fr; gap: 12px; }
  .post-date { grid-column: 2; }
  .post-title { font-size: 17.5px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}