/* tmajik — Caelid notes */
:root {
  --font-display: "Cinzel", "Times New Roman", serif;
  --font-display-deco: "Cinzel Decorative", "Cinzel", serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --measure: 52rem;
  --rail: min(1120px, calc(100% - 2.5rem));
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Dark default — scarlet waste + grace-gold */
html[data-theme="dark"] {
  --bg: #12090a;
  --bg-deep: #1a0c0e;
  --ink: #f3e6dc;
  --ink-soft: #d4b8a8;
  --muted: #9a7a70;
  --line: rgba(243, 230, 220, 0.12);
  --panel: rgba(42, 14, 16, 0.55);
  --accent: #d64535;
  --accent-deep: #a82f24;
  --signal: #e8a04a;
  --gold: #c9a227;
  --gold-soft: #daa520;
  --gold-orchid: #d4af37;
  --gold-pale: #f0e0a8;
  --glow: rgba(214, 69, 53, 0.22);
  --header-bg: rgba(18, 9, 10, 0.78);
  --header-bg-strong: rgba(18, 9, 10, 0.92);
  --hover-wash: rgba(214, 69, 53, 0.08);
  --code-bg: rgba(243, 230, 220, 0.08);
  --pre-bg: #0a0506;
  --pre-ink: #f0dcd0;
  --sidenote-bg: rgba(42, 14, 16, 0.7);
  --btn-primary-ink: #1a0808;
  --empty-bg: rgba(42, 14, 16, 0.55);
  --atm-1: rgba(180, 40, 35, 0.26);
  --atm-2: rgba(120, 28, 22, 0.2);
  --atm-3: rgba(80, 20, 18, 0.32);
  --atm-gold-1: rgba(201, 162, 39, 0.11);
  --atm-gold-2: rgba(218, 165, 32, 0.08);
  --atm-orchid: rgba(212, 175, 55, 0.07);
  --atm-base-top: #1a0b0c;
  --atm-base-mid: #12090a;
  --atm-base-bot: #0c0607;
  --grid: rgba(201, 162, 39, 0.07);
  --grid-cross: rgba(240, 224, 168, 0.035);
  --rule-gold: linear-gradient(
    90deg,
    transparent 0%,
    rgba(201, 162, 39, 0.15) 12%,
    rgba(240, 224, 168, 0.45) 50%,
    rgba(212, 175, 55, 0.18) 88%,
    transparent 100%
  );
  --img-bg: #1a0c0e;
  --toc-bg: rgba(42, 14, 16, 0.55);
  --glass: rgba(48, 18, 20, 0.42);
  --glass-strong: rgba(56, 20, 22, 0.62);
  --glass-edge: rgba(255, 236, 180, 0.28);
  --chrome: linear-gradient(
    135deg,
    #f3e2a4 0%,
    #c9a227 22%,
    #8a5a18 48%,
    #e8c85a 72%,
    #f7efc4 100%
  );
  --specular: rgba(255, 255, 255, 0.55);
  --btn-glow: 0 0 18px rgba(214, 69, 53, 0.28), 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* Light — ash, rust & pale gold */
html[data-theme="light"] {
  --bg: #ebe2da;
  --bg-deep: #dfd3c8;
  --ink: #2a1210;
  --ink-soft: #5a342e;
  --muted: #7a564c;
  --line: rgba(42, 18, 16, 0.14);
  --panel: rgba(255, 248, 242, 0.5);
  --accent: #b83228;
  --accent-deep: #8f231c;
  --signal: #9a4a1c;
  --gold: #b8941f;
  --gold-soft: #c9a227;
  --gold-orchid: #c4a035;
  --gold-pale: #e8d48a;
  --glow: rgba(184, 50, 40, 0.16);
  --header-bg: rgba(235, 226, 218, 0.78);
  --header-bg-strong: rgba(235, 226, 218, 0.94);
  --hover-wash: rgba(184, 50, 40, 0.06);
  --code-bg: rgba(42, 18, 16, 0.07);
  --pre-bg: #241312;
  --pre-ink: #f0dcd0;
  --sidenote-bg: rgba(255, 248, 242, 0.62);
  --btn-primary-ink: #fff8f2;
  --empty-bg: rgba(255, 248, 242, 0.45);
  --atm-1: rgba(184, 50, 40, 0.14);
  --atm-2: rgba(154, 74, 28, 0.1);
  --atm-3: rgba(90, 52, 46, 0.09);
  --atm-gold-1: rgba(184, 148, 31, 0.1);
  --atm-gold-2: rgba(201, 162, 39, 0.08);
  --atm-orchid: rgba(196, 160, 53, 0.07);
  --atm-base-top: #f0e7df;
  --atm-base-mid: #ebe2da;
  --atm-base-bot: #ddd1c6;
  --grid: rgba(184, 148, 31, 0.09);
  --grid-cross: rgba(201, 162, 39, 0.045);
  --rule-gold: linear-gradient(
    90deg,
    transparent 0%,
    rgba(184, 148, 31, 0.2) 12%,
    rgba(201, 162, 39, 0.55) 50%,
    rgba(196, 160, 53, 0.22) 88%,
    transparent 100%
  );
  --img-bg: #fff8f2;
  --toc-bg: rgba(255, 248, 242, 0.55);
  --glass: rgba(255, 250, 244, 0.48);
  --glass-strong: rgba(255, 252, 246, 0.72);
  --glass-edge: rgba(184, 148, 31, 0.35);
  --chrome: linear-gradient(
    135deg,
    #fff4c8 0%,
    #d4af37 24%,
    #9a6b1a 50%,
    #e0c050 74%,
    #fff8dc 100%
  );
  --specular: rgba(255, 255, 255, 0.72);
  --btn-glow: 0 0 16px rgba(184, 50, 40, 0.22), 0 8px 20px rgba(80, 30, 20, 0.18);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

html[data-theme="light"] {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  background: var(--bg);
  position: relative;
  overflow-x: hidden;
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}

.atmosphere {
  --mx: 50%;
  --my: 35%;
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.atmosphere__wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1000px 560px at 8% -8%, var(--atm-1), transparent 58%),
    radial-gradient(860px 500px at 92% 4%, var(--atm-2), transparent 55%),
    radial-gradient(720px 460px at 50% 110%, var(--atm-3), transparent 50%),
    linear-gradient(180deg, var(--atm-base-top) 0%, var(--atm-base-mid) 42%, var(--atm-base-bot) 100%);
}

.atmosphere__orbs {
  position: absolute;
  inset: 0;
}

.atmosphere__orb {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  filter: blur(48px);
  mix-blend-mode: screen;
  opacity: 0.7;
  will-change: transform;
  background: radial-gradient(
    circle,
    rgba(255, 236, 170, 0.55) 0%,
    rgba(212, 175, 55, 0.28) 35%,
    rgba(201, 162, 39, 0.08) 60%,
    transparent 72%
  );
}

/* Dark: scarlet accent orbs */
html[data-theme="dark"] .atmosphere__orb--scarlet {
  opacity: 0.62;
  background: radial-gradient(
    circle,
    rgba(255, 140, 120, 0.45) 0%,
    rgba(214, 69, 53, 0.32) 38%,
    rgba(120, 24, 20, 0.12) 62%,
    transparent 76%
  );
}

/* Light: red orbs with black centers (default) */
html[data-theme="light"] .atmosphere__orb {
  mix-blend-mode: multiply;
  opacity: 0.72;
  filter: blur(44px);
  background: radial-gradient(
    circle,
    #0a0606 0%,
    #1a0a0a 18%,
    #8f1f18 42%,
    #c83228 62%,
    rgba(184, 50, 40, 0.35) 78%,
    transparent 88%
  );
}

/* Light: larger golden accent orbs */
html[data-theme="light"] .atmosphere__orb--gold {
  mix-blend-mode: multiply;
  opacity: 0.55;
  filter: blur(52px);
  background: radial-gradient(
    circle,
    rgba(255, 236, 180, 0.7) 0%,
    rgba(212, 175, 55, 0.45) 32%,
    rgba(184, 148, 31, 0.22) 58%,
    transparent 78%
  );
}

.atmosphere__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.atmosphere__particle {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform, opacity;
  background: radial-gradient(
    circle,
    #fff6c8 0%,
    #f0d56a 35%,
    rgba(201, 162, 39, 0.35) 70%,
    transparent 100%
  );
  box-shadow: 0 0 6px rgba(240, 224, 168, 0.55);
}

html[data-theme="light"] .atmosphere__particle {
  background: radial-gradient(
    circle,
    #ff8a7a 0%,
    #e04535 40%,
    rgba(168, 32, 28, 0.45) 75%,
    transparent 100%
  );
  box-shadow: 0 0 6px rgba(214, 69, 53, 0.55);
}

.atmosphere__grid,
.atmosphere__grid-glow {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(var(--grid-cross) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-cross) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px, 192px 192px, 192px 192px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 78%);
}

.atmosphere__grid-glow {
  opacity: 0;
  background-image:
    linear-gradient(rgba(240, 224, 168, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 224, 168, 0.28) 1px, transparent 1px),
    linear-gradient(rgba(255, 236, 180, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 236, 180, 0.16) 1px, transparent 1px);
  mask-image: radial-gradient(
    260px circle at var(--mx) var(--my),
    black 0%,
    rgba(0, 0, 0, 0.55) 35%,
    transparent 72%
  );
  -webkit-mask-image: radial-gradient(
    260px circle at var(--mx) var(--my),
    black 0%,
    rgba(0, 0, 0, 0.55) 35%,
    transparent 72%
  );
  transition: opacity 0.35s ease;
  filter: drop-shadow(0 0 6px rgba(240, 224, 168, 0.25));
}

.is-home .atmosphere__grid-glow.is-on {
  opacity: 1;
}

.atmosphere__cursor {
  position: absolute;
  width: min(42vw, 480px);
  height: min(42vw, 480px);
  left: var(--mx);
  top: var(--my);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  opacity: 0;
  background:
    radial-gradient(circle, rgba(255, 236, 180, 0.18) 0%, rgba(201, 162, 39, 0.08) 38%, transparent 68%);
  transition: opacity 0.35s ease;
  filter: blur(2px);
}

.is-home .atmosphere__cursor.is-on {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .atmosphere__orb,
  .atmosphere__particle {
    display: none;
  }

  .atmosphere__grid-glow,
  .atmosphere__cursor {
    display: none;
  }
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--accent);
  color: var(--btn-primary-ink);
  padding: 0.5rem 0.75rem;
  z-index: 100;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

img {
  max-width: 100%;
  height: auto;
}

/* Header — frosted aero bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px) saturate(1.35);
  -webkit-backdrop-filter: blur(18px) saturate(1.35);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, transparent 42%),
    var(--header-bg);
  border-bottom: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 10px 30px rgba(0, 0, 0, 0.18);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--rule-gold);
  opacity: 0.55;
  transition: opacity 0.3s var(--ease), height 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header.is-scrolled {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 46%),
    var(--header-bg-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    0 12px 34px rgba(0, 0, 0, 0.22);
}

.site-header.is-scrolled::after {
  opacity: 1;
  height: 1.5px;
  box-shadow: 0 0 12px rgba(201, 162, 39, 0.25);
}

.site-header__inner {
  width: var(--rail);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
}

.wordmark {
  font-family: var(--font-display-deco);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  text-decoration: none;
  color: var(--ink);
}

.brand {
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
}

.brand__at {
  display: inline-block;
  margin-right: 0.02em;
  background: linear-gradient(
    165deg,
    #ff8a78 0%,
    #f05545 28%,
    #ffb0a0 46%,
    var(--accent) 62%,
    var(--accent-deep) 100%
  );
  background-size: 140% 140%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent) 45%, transparent));
  animation: brand-gleam 7s ease-in-out infinite;
}

.hero__brand .brand__at {
  filter: drop-shadow(0 0 14px color-mix(in srgb, var(--accent) 50%, transparent))
    drop-shadow(0 0 18px color-mix(in srgb, var(--accent-deep) 30%, transparent));
}

@keyframes brand-gleam {
  0%,
  100% {
    background-position: 0% 40%;
  }
  50% {
    background-position: 100% 60%;
  }
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.42rem 0.72rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 28%, transparent);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, transparent 48%),
    var(--glass);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 2px 8px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(10px);
  transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.25s var(--ease), transform 0.2s var(--ease);
}

.site-nav a:hover {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--gold) 55%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 0 14px color-mix(in srgb, var(--gold) 28%, transparent),
    0 4px 12px rgba(0, 0, 0, 0.16);
  transform: translateY(-1px);
}

html[data-theme="dark"] .site-nav a:hover {
  color: var(--gold-pale);
}

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  margin: 0;
  padding: 0;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 40%, transparent);
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.55), transparent 42%),
    linear-gradient(160deg, color-mix(in srgb, var(--gold) 35%, #fff) 0%, var(--accent-deep) 100%);
  color: #fff8e8;
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 -2px 4px rgba(0, 0, 0, 0.25),
    0 0 12px color-mix(in srgb, var(--gold) 30%, transparent);
  transition: transform 0.2s var(--ease), box-shadow 0.25s ease, filter 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px) scale(1.04);
  filter: brightness(1.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -2px 4px rgba(0, 0, 0, 0.22),
    0 0 18px color-mix(in srgb, var(--gold) 42%, transparent);
}

.theme-toggle__icon {
  font-size: 0.95rem;
  line-height: 1;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.35));
}

html[data-theme="dark"] .theme-toggle__icon--moon,
html[data-theme="light"] .theme-toggle__icon--sun {
  display: none;
}

/* Hero */
.hero {
  min-height: calc(100svh - 4rem);
  display: grid;
  align-items: center;
  padding: 3rem 0 4rem;
}

.hero__inner {
  width: var(--rail);
  margin-inline: auto;
  max-width: 48rem;
}

.hero__brand {
  margin: 0 0 1.25rem;
  font-family: var(--font-display-deco);
  font-weight: 700;
  font-size: clamp(3.2rem, 10vw, 6.4rem);
  line-height: 0.92;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--ink);
  text-wrap: balance;
}

.hero__headline {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 3.2vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  max-width: 18ch;
}

.hero__lede {
  margin: 0 0 1.75rem;
  max-width: 38ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__disclosure {
  margin: 1.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Fantasy Aero buttons */
.btn {
  --btn-radius: 0.85rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.35rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--btn-radius);
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease),
    filter 0.25s ease,
    border-color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
}

.btn:active {
  transform: translateY(0);
  filter: brightness(0.96);
}

.btn--primary {
  color: #fff8ef;
  text-shadow: 0 1px 1px rgba(60, 10, 8, 0.45);
  border-color: color-mix(in srgb, var(--gold-pale) 55%, #fff);
  background:
    radial-gradient(120% 70% at 50% 0%, rgba(255, 255, 255, 0.55), transparent 48%),
    linear-gradient(180deg, rgba(255, 210, 140, 0.38) 0%, transparent 40%),
    linear-gradient(165deg, #e86048 0%, var(--accent) 42%, var(--accent-deep) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -3px 8px rgba(60, 8, 6, 0.35),
    0 0 0 1px color-mix(in srgb, var(--gold) 40%, transparent),
    var(--btn-glow);
}

.btn--primary:hover {
  color: #fff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    inset 0 -3px 8px rgba(60, 8, 6, 0.3),
    0 0 0 1px color-mix(in srgb, var(--gold-pale) 55%, transparent),
    0 0 26px rgba(214, 69, 53, 0.38),
    0 10px 28px rgba(0, 0, 0, 0.35);
}

.btn--ghost {
  color: var(--gold-pale);
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.25);
  border-color: color-mix(in srgb, var(--gold) 45%, transparent);
  background:
    radial-gradient(120% 70% at 50% 0%, rgba(255, 255, 255, 0.42), transparent 48%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, transparent 42%),
    linear-gradient(165deg, color-mix(in srgb, var(--gold) 18%, var(--glass-strong)) 0%, var(--glass) 100%);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.38),
    inset 0 -2px 6px rgba(0, 0, 0, 0.18),
    0 0 0 1px color-mix(in srgb, var(--gold) 22%, transparent),
    0 6px 18px rgba(0, 0, 0, 0.18);
}

.btn--ghost:hover {
  color: #fff8e0;
  border-color: color-mix(in srgb, var(--gold-pale) 65%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.48),
    inset 0 -2px 6px rgba(0, 0, 0, 0.16),
    0 0 0 1px color-mix(in srgb, var(--gold) 40%, transparent),
    0 0 20px color-mix(in srgb, var(--gold) 28%, transparent),
    0 8px 22px rgba(0, 0, 0, 0.22);
}

/* Sections */
.writeups {
  width: var(--rail);
  margin: 0 auto 5rem;
  padding-top: 1rem;
}

.writeups--compact {
  margin-top: 0;
}

.section-head {
  margin-bottom: 1.75rem;
  max-width: 36rem;
}

.section-head .eyebrow {
  margin-bottom: 0.45rem;
}

.section-head h2 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: 0.04em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.writeup-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.writeup-item {
  border: 1px solid color-mix(in srgb, var(--gold) 28%, var(--line));
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, transparent 34%),
    var(--glass);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 8px 22px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(12px) saturate(1.15);
  -webkit-backdrop-filter: blur(12px) saturate(1.15);
  overflow: hidden;
}

.writeup-item:last-child {
  border-bottom: 1px solid color-mix(in srgb, var(--gold) 28%, var(--line));
}

.writeup-item__link {
  display: grid;
  gap: 0.55rem;
  padding: 1.25rem 1.15rem;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: background 0.3s var(--ease), padding-left 0.3s var(--ease);
}

.writeup-item__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: linear-gradient(180deg, var(--gold-pale), var(--accent));
  transition: width 0.35s var(--ease);
}

.writeup-item__link:hover {
  padding-left: 1.35rem;
  background: linear-gradient(90deg, color-mix(in srgb, var(--gold) 10%, transparent), transparent 55%);
}

.writeup-item__link:hover::before {
  width: 4px;
}

.writeup-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  text-transform: uppercase;
}

.writeup-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.writeup-item__tags span {
  color: var(--signal);
}

.writeup-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.writeup-item__summary {
  margin: 0;
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.writeup-item__go {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s ease, transform 0.25s var(--ease);
}

.writeup-item__link:hover .writeup-item__go {
  opacity: 1;
  transform: translateX(0);
}

.empty-panel {
  padding: 1.5rem 1.35rem;
  border: 1px solid color-mix(in srgb, var(--gold) 32%, var(--line));
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, transparent 40%),
    var(--empty-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 10px 28px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.empty-panel__label {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--signal);
}

.empty-panel__copy {
  margin: 0;
  color: var(--muted);
  max-width: 42ch;
}

.empty-state {
  padding: 1.25rem 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* Post */
.page-head,
.post {
  width: var(--rail);
  margin: 0 auto;
}

.page-head {
  padding: 3.5rem 0 1rem;
}

.page-head__inner {
  max-width: 40rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-head h1,
.post__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.1;
  font-size: clamp(2rem, 5vw, 3.1rem);
}

.post {
  padding: 2.5rem 0 4.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

@media (min-width: 980px) {
  .post {
    grid-template-columns: minmax(0, 1fr) 15rem;
    grid-template-areas:
      "header header"
      "body toc";
    column-gap: 2rem;
  }

  .post__header {
    grid-area: header;
  }

  .post__body {
    grid-area: body;
    max-width: none;
  }

  .toc {
    grid-area: toc;
  }
}

.post__header {
  max-width: var(--measure);
  padding-bottom: 0.5rem;
  border-bottom: none;
  position: relative;
}

.post__header::after {
  content: "";
  display: block;
  margin-top: 0.85rem;
  height: 1px;
  background: var(--rule-gold);
  opacity: 0.7;
}

.post__back {
  display: inline-block;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
}

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

.post__meta {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.post__cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.post__cats a {
  text-decoration: none;
  color: var(--gold-pale);
  border: 1px solid color-mix(in srgb, var(--gold) 40%, transparent);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, transparent 55%),
    var(--glass);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.post__cats a:hover {
  color: #fff8e8;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 0 12px color-mix(in srgb, var(--gold) 30%, transparent);
}

.toc {
  align-self: start;
  position: sticky;
  top: 5rem;
  padding: 1rem 1rem 1.05rem;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--gold) 28%, var(--line));
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 45%),
    var(--toc-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 10px 26px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.toc__label {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li {
  margin: 0.35rem 0;
}

.toc a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.35;
}

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

.toc nav > ul > li > ul {
  padding-left: 0.75rem;
  border-left: 1px solid var(--line);
  margin-top: 0.25rem;
}

.post__body {
  max-width: var(--measure);
  min-width: 0;
}

/* Prose */
.prose > *:first-child {
  margin-top: 0;
}

.prose h2,
.prose h3,
.prose h4 {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  line-height: 1.2;
  scroll-margin-top: 5rem;
}

.prose h2 {
  margin: 2.4rem 0 0.9rem;
  font-size: 1.65rem;
}

.prose h3 {
  margin: 1.8rem 0 0.7rem;
  font-size: 1.25rem;
}

.prose p,
.prose li {
  color: var(--ink);
}

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

.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--code-bg);
  padding: 0.12em 0.35em;
}

.prose pre {
  overflow-x: auto;
  padding: 1.05rem 1.2rem;
  margin: 1.25rem 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, transparent 30%),
    var(--pre-bg);
  color: var(--pre-ink);
  border: 1px solid color-mix(in srgb, var(--gold) 22%, var(--line));
  border-radius: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.55;
  max-width: 100%;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 8px 20px rgba(0, 0, 0, 0.18);
}

.prose pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.prose .highlight {
  margin: 1.25rem 0;
  overflow-x: auto;
  max-width: 100%;
  border-radius: 0.75rem;
}

.prose .highlight pre {
  margin: 0;
}

.prose .highlight table {
  width: max-content;
  min-width: 100%;
  margin: 0;
  border: 0;
}

.prose .highlight td {
  border: 0;
  padding: 0;
  vertical-align: top;
}

.prose .highlight td:first-child {
  padding-right: 0.85rem;
  user-select: none;
}

.prose img {
  display: block;
  margin: 1.4rem auto;
  border: 1px solid var(--line);
  background: var(--img-bg);
}

.prose blockquote {
  margin: 1.4rem 0;
  padding: 0.2rem 0 0.2rem 1rem;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1.25rem 0;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 0.5rem 0.65rem;
  text-align: left;
}

.prose center {
  display: block;
  text-align: center;
}

.sidenote {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  margin: 1.35rem 0;
  padding: 0.95rem 1.05rem;
  border-radius: 0.85rem;
  border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent);
  border-left: 3px solid var(--gold-orchid);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 50%),
    var(--sidenote-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 8px 20px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.sidenote__mark {
  font-family: var(--font-mono);
  color: var(--signal);
  line-height: 1.5;
}

.sidenote__body {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.sidenote__body p {
  margin: 0;
}

.post__wip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold-pale);
}

.post__wip span {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, transparent 55%),
    color-mix(in srgb, var(--accent) 28%, transparent);
  color: #fff4ef;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.post__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.post__tags a {
  text-decoration: none;
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid color-mix(in srgb, var(--gold) 22%, transparent);
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  background: var(--glass);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.post__tags a:hover {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

.meta-wip {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  color: #ffd8d0;
  letter-spacing: 0.06em;
}

.wip-banner {
  display: grid;
  gap: 0.35rem;
  margin: 0 0 1.75rem;
  padding: 0.95rem 1.1rem;
  border-radius: 0.85rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 50%),
    color-mix(in srgb, var(--accent) 14%, var(--glass));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 8px 20px rgba(0, 0, 0, 0.12);
}

.wip-banner--inline {
  margin-top: 2rem;
}

.wip-banner__label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.wip-banner__copy {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  border-top: none;
  position: relative;
  padding: 2rem 0 2.75rem;
  margin-top: auto;
  background:
    linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--glass) 55%, transparent) 100%);
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--rule-gold);
  opacity: 0.65;
  box-shadow: 0 0 10px color-mix(in srgb, var(--gold) 25%, transparent);
}

.site-footer__inner {
  width: var(--rail);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  align-items: baseline;
}

.site-footer__brand {
  margin: 0;
  font-family: var(--font-display-deco);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--ink);
}

.site-footer__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  max-width: 42ch;
}

/* Motion */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.8s var(--ease) forwards;
  animation-delay: calc(var(--d, 0) * 90ms + 80ms);
}

.reveal-row {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal-row.is-in {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-row {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }

  .btn:hover,
  .writeup-item__link:hover {
    transform: none;
  }
}

@media (max-width: 720px) {
  :root {
    --rail: min(1120px, calc(100% - 1.5rem));
  }

  .hero {
    min-height: calc(100svh - 3.5rem);
    padding-top: 2rem;
  }

  .site-nav {
    gap: 0.75rem;
  }

  .toc {
    position: static;
  }
}