/* ---- Type stack tokens ---- */
:root {
  --font-mono: 'Courier Prime', 'Courier New', Courier, monospace;
  --font-kannada: 'Noto Sans Kannada', var(--font-mono);
}

/* ---- Theme tokens ---- */
:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --ink: #1a1a1c;
  --muted: #6e6a62;
  --rule: #e6e1d6;
  --accent: #6b2c3a;
  --shadow: 0 6px 22px rgba(28, 22, 14, 0.06);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #14110d;
  --ink: #ece7dd;
  --muted: #8c867a;
  --rule: #2a2620;
  --accent: #b888bd;
  --shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
}

/* Accent palettes: light + dark per accent */
html[data-accent="steel"]                           { --accent: #3a5775; }
html[data-theme="dark"][data-accent="steel"]        { --accent: #9bc0e0; }
html[data-accent="slate"]                           { --accent: #4a5b73; }
html[data-theme="dark"][data-accent="slate"]        { --accent: #a8b8cf; }
html[data-accent="navy"]                            { --accent: #26426e; }
html[data-theme="dark"][data-accent="navy"]         { --accent: #7a9cd4; }
html[data-accent="graphite"]                        { --accent: #3a3a3a; }
html[data-theme="dark"][data-accent="graphite"]     { --accent: #c4c4c0; }

/* Derived tokens (computed from --accent so they stay in sync) */
html {
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);
  --bg-decor-1: color-mix(in srgb, var(--accent) 10%, transparent);
  --bg-decor-2: color-mix(in srgb, var(--accent) 6%, transparent);
  --card: color-mix(in srgb, var(--accent) 8%, var(--bg));
}
html[data-theme="dark"] {
  --card: color-mix(in srgb, var(--accent) 14%, var(--bg));
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
/* a11y: visible focus ring everywhere (custom cursor doesn't track keyboard) */
*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* skip-to-content link for keyboard / screen reader users */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--accent);
  color: var(--bg);
  padding: 8px 14px;
  border-radius: 4px;
  z-index: 1000;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  text-decoration: none;
}
.skip-link:focus {
  left: 12px;
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-feature-settings: "ss01", "cv11";
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
  overflow-x: hidden;
  transition: background-color .25s ease, color .25s ease;
}

/* ---- Backgrounds (random per session via data-bg) ---- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* aurora: two large, slowly drifting radial gradients */
[data-bg="aurora"] .bg-layer::before,
[data-bg="aurora"] .bg-layer::after {
  content: "";
  position: absolute;
  width: 70vw; height: 70vw;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
}
[data-bg="aurora"] .bg-layer::before {
  background: radial-gradient(circle, var(--bg-decor-1) 0%, transparent 65%);
  top: -25vw; left: -15vw;
  animation: drift1 60s ease-in-out infinite alternate;
}
[data-bg="aurora"] .bg-layer::after {
  background: radial-gradient(circle, var(--bg-decor-2) 0%, transparent 65%);
  bottom: -25vw; right: -15vw;
  animation: drift2 75s ease-in-out infinite alternate;
}
@keyframes drift1 { from { transform: translate(0,0); } to { transform: translate(8vw, 6vw); } }
@keyframes drift2 { from { transform: translate(0,0); } to { transform: translate(-6vw, -4vw); } }

/* constellation: static dots, three pulse */
[data-bg="constellation"] .bg-layer {
  background-image:
    radial-gradient(circle, var(--muted) 1px, transparent 1.5px),
    radial-gradient(circle, var(--muted) 1px, transparent 1.5px),
    radial-gradient(circle, var(--muted) 1px, transparent 1.5px);
  background-size: 90px 110px, 130px 170px, 70px 140px;
  background-position: 12px 30px, 70px 50px, 200px 90px;
  opacity: 0.35;
}
[data-bg="constellation"] .bg-layer::before {
  content: "";
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  top: 22vh; left: 18vw;
  box-shadow: 24vw 36vh 0 var(--accent), -8vw 48vh 0 var(--accent);
  animation: pulse-dot 4.5s ease-in-out infinite;
  opacity: 0.5;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(1.4); }
}

/* sunrise: single warm radial blob top-right */
[data-bg="sunrise"] .bg-layer::before {
  content: "";
  position: absolute;
  width: 80vw; height: 80vw;
  top: -40vw; right: -30vw;
  border-radius: 50%;
  background: radial-gradient(circle, var(--bg-decor-1) 0%, transparent 60%);
  filter: blur(40px);
  opacity: 0.85;
}

/* linen: soft tactile noise */
@media (prefers-reduced-motion: reduce) {
  [data-bg="aurora"] .bg-layer::before,
  [data-bg="aurora"] .bg-layer::after,
  [data-bg="constellation"] .bg-layer::before { animation: none; }
}

/* shooting-stars: hidden by default, only shown when active */
.bg-layer .star, .bg-layer .neural-svg { display: none; }
[data-bg="shooting-stars"] .bg-layer .star { display: block; }
.star {
  position: absolute;
  width: 110px; height: 1.5px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-soft) 60%, var(--accent) 100%);
  border-radius: 999px;
  filter: drop-shadow(0 0 6px var(--accent-soft));
  opacity: 0;
}
.star.s1 { animation: shoot1 7s linear 0s   infinite; }
.star.s2 { animation: shoot2 9s linear 2.4s infinite; }
.star.s3 { animation: shoot3 11s linear 5s  infinite; }
.star.s4 { animation: shoot4 8s linear 1s   infinite; }
.star.s5 { animation: shoot5 12s linear 7.5s infinite; }
.star.s6 { animation: shoot6 10s linear 3.5s infinite; }
@keyframes shoot1 { 0%{ top:5%;  left:-150px; transform:rotate(18deg); opacity:0; } 6%{opacity:.9;} 70%{opacity:.7;} 100%{ top:30%; left:110vw; transform:rotate(18deg); opacity:0; } }
@keyframes shoot2 { 0%{ top:25%; left:-150px; transform:rotate(12deg); opacity:0; } 6%{opacity:.85;} 70%{opacity:.6;} 100%{ top:45%; left:110vw; transform:rotate(12deg); opacity:0; } }
@keyframes shoot3 { 0%{ top:60%; left:-150px; transform:rotate(20deg); opacity:0; } 6%{opacity:.7;}  70%{opacity:.5;} 100%{ top:90%; left:110vw; transform:rotate(20deg); opacity:0; } }
@keyframes shoot4 { 0%{ top:12%; left:-150px; transform:rotate(15deg); opacity:0; } 6%{opacity:.85;} 70%{opacity:.65;} 100%{ top:38%; left:110vw; transform:rotate(15deg); opacity:0; } }
@keyframes shoot5 { 0%{ top:70%; left:-150px; transform:rotate(10deg); opacity:0; } 6%{opacity:.6;}  70%{opacity:.45;} 100%{ top:92%; left:110vw; transform:rotate(10deg); opacity:0; } }
@keyframes shoot6 { 0%{ top:40%; left:-150px; transform:rotate(22deg); opacity:0; } 6%{opacity:.8;}  70%{opacity:.55;} 100%{ top:70%; left:110vw; transform:rotate(22deg); opacity:0; } }

/* neural-net: faint network with pulsing nodes */
[data-bg="neural-net"] .bg-layer .neural-svg {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  color: var(--accent);
  opacity: 0.32;
}
.nn-nodes .pulse { animation: nn-pulse 3.4s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.nn-nodes .pulse.pa { animation-delay: 0s; }
.nn-nodes .pulse.pb { animation-delay: 1.1s; }
.nn-nodes .pulse.pc { animation-delay: 2.2s; }
.nn-nodes .pulse.pd { animation-delay: 3.0s; }
@keyframes nn-pulse {
  0%, 100% { opacity: 0.5; r: 4; }
  50%      { opacity: 1;   r: 6; }
}

/* ---- Custom site cursor (4 variants, randomised per refresh) ---- */
.site-cursor {
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: width .18s ease, height .18s ease, background-color .18s ease,
              border-color .18s ease, opacity .2s ease, transform .25s ease;
  will-change: transform, left, top;
}
.site-cursor.active { opacity: 0.92; }

/* circle (default) */
[data-cursor="circle"] .site-cursor {
  width: 18px; height: 18px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}
[data-cursor="circle"] .site-cursor.hover {
  width: 32px; height: 32px;
  background: var(--accent-soft);
}

/* dot */
[data-cursor="dot"] .site-cursor {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--accent-soft);
}
[data-cursor="dot"] .site-cursor.hover {
  width: 6px; height: 6px;
  box-shadow: 0 0 0 12px var(--accent-soft);
}

/* hide native cursor on fine-pointer devices when our custom cursor is active */
@media (pointer: fine) {
  body, a, button, input, label, textarea, select,
  .photo, .upvote, .nav-btn, .btn-action {
    cursor: none;
  }
}
@media (pointer: coarse), (prefers-reduced-motion: reduce) {
  .site-cursor { display: none !important; }
  body, a, button, input, label, textarea, select,
  .photo, .upvote, .nav-btn, .btn-action { cursor: auto; }
}

/* ---- Top navigation ---- */
.topnav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 36px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px;
}
.nav-home {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink);
  font-size: 1rem;
  letter-spacing: 0;
  border-bottom: none;
}
.nav-home:hover { color: var(--accent); border-bottom: none; }
.nav-home:hover .nav-mark {
  transform: scale(1.06);
  filter: drop-shadow(0 0 6px var(--accent-soft));
}
.nav-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Sans Kannada', serif;
  font-weight: 500;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--ink);
  transition: filter .25s ease, transform .25s ease, color .25s ease;
}
@media (max-width: 600px) { .nav-mark { font-size: 2rem; } }
/* HDR-bright glyph in dark mode — uses display-p3 wide-gamut white where supported */
html[data-theme="dark"] .nav-mark {
  color: #ffffff;
  text-shadow:
    0 0 4px rgba(255, 255, 255, 0.55),
    0 0 12px rgba(255, 255, 255, 0.35),
    0 0 22px rgba(255, 255, 255, 0.18);
}
@supports (color: color(display-p3 1 1 1)) {
  html[data-theme="dark"] .nav-mark {
    color: color(display-p3 1.1 1.1 1.1);
  }
}
.nav-word { display: inline-block; }
@media (max-width: 480px) {
  .nav-word { display: none; }
}
.nav-cluster { display: flex; align-items: center; gap: 14px; }
.topnav ul {
  display: flex; gap: 18px;
  list-style: none; padding: 0; margin: 0;
  font-size: 0.84rem;
  font-family: var(--font-mono);
  text-transform: lowercase;
}
.topnav ul a { color: var(--muted); border-bottom: none; }
.topnav ul a:hover { color: var(--ink); border-bottom: none; }

.nav-btn {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--muted);
  width: 30px; height: 30px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0;
  transition: color .15s ease, border-color .15s ease, transform .2s ease;
  font-size: 0.78rem;
}
.nav-btn:hover { color: var(--accent); border-color: var(--accent); }
.nav-btn:active { transform: scale(0.94); }
.nav-btn svg { width: 13px; height: 13px; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
html[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 760px) {
  .nav-inner { padding: 10px 14px; gap: 10px; flex-wrap: wrap; }
  .nav-cluster { gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
  .topnav ul {
    gap: 10px;
    font-size: 0.74rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    row-gap: 4px;
  }
  .nav-btn { width: 28px; height: 28px; }
}
@media (max-width: 420px) {
  /* drop secondary items so the row fits on a single line on small phones */
  .topnav ul li:nth-child(3),  /* papers */
  .topnav ul li:nth-child(6)   /* about */
   { display: none; }
  .topnav ul { gap: 8px; }
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 96px;
  position: relative;
  z-index: 1;
}
main > section[id] { scroll-margin-top: 72px; }

/* ---- Type ---- */
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
a:hover { border-bottom-color: var(--accent); }

h1, h2, h3 {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1.2;
}
h1 { font-size: 2.4rem; margin: 4px 0 14px; }
h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink);
  margin: 64px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--accent);
  line-height: 1.1;
}
main > section > h2,
.blog-header h1,
.post-header .post-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
main > section > h2::before,
.blog-header h1::before,
.post-header .post-title::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent-soft);
}
h3 { font-size: 1.18rem; margin: 0 0 8px; }

p { margin: 0 0 14px; }
.muted { color: var(--muted); font-size: 0.94em; }

/* ---- Hero ---- */
.hero { padding-bottom: 8px; }
.hero-row { display: flex; gap: 36px; align-items: flex-start; }
.hero-text { flex: 1; min-width: 0; }
.hero-photo { flex: 0 0 132px; text-align: center; }
.hero-photo .photo {
  display: block;
  width: 132px; height: 132px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  cursor: pointer;
}
.hero-photo .photo:hover {
  transform: scale(1.04);
  border-color: var(--accent);
  box-shadow: 0 10px 30px var(--accent-soft);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; display: block; position: relative; z-index: 1; }
.hero-photo .photo-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 3rem;
  z-index: 0;
}
.hero-photo .photo.no-photo .photo-fallback { z-index: 2; }
.hero-photo .photo-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: opacity .3s ease;
}
body:not(.landing) .hero-photo .photo-caption {
  opacity: 0;
  pointer-events: none;
}

.hero h1 { margin-top: 0; }
.hero .tag { font-size: 1.06rem; line-height: 1.6; color: var(--ink); max-width: 52ch; }
.kannada {
  font-family: 'Noto Sans Kannada', var(--font-mono);
  font-size: 1.1rem;
  color: var(--muted);
  margin: -6px 0 18px;
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* ---- Hover-image proof (e.g. EFM most-downloaded screenshot) ---- */
.proof-hover {
  position: relative;
  border-bottom: 1px dashed var(--accent);
  cursor: help;
  font-weight: 500;
}
.proof-img {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: 380px;
  max-width: min(85vw, 420px);
  height: auto;
  border: 1px solid var(--rule);
  border-radius: 8px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  background: var(--bg);
  z-index: 50;
  pointer-events: none;
}
.proof-hover:hover .proof-img,
.proof-hover:focus .proof-img,
.proof-hover:focus-within .proof-img { display: block; }
@media (max-width: 640px) {
  .proof-img { left: 50%; transform: translateX(-50%); }
}
.proof-stamp {
  font-family: var(--font-mono);
  font-size: 0.74em;
  color: var(--muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ---- Latest-from-blog (homepage, between intro and now-block) ---- */
.latest-posts {
  margin-top: 28px;
  padding: 22px 24px 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: color-mix(in srgb, var(--card) 80%, transparent);
  position: relative;
}
.latest-label {
  font-family: var(--font-mono);
  font-size: 1.18rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink);
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}
.latest-label::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent-soft);
}
.latest-label a {
  color: var(--accent);
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  transition: opacity .2s ease;
}
.latest-label a:hover { opacity: 0.7; }
@media (max-width: 600px) {
  .latest-label { font-size: 1rem; gap: 10px; letter-spacing: 0.14em; }
  .latest-label::before { width: 4px; height: 20px; }
}
.latest-posts ul { list-style: none; padding: 0; margin: 0; }
.latest-posts li {
  display: flex; align-items: baseline; gap: 14px;
  padding: 5px 0;
  font-size: 0.97rem;
}
.latest-posts .post-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  min-width: 96px;
  flex-shrink: 0;
}
.latest-posts a { color: var(--ink); border-bottom: 1px solid transparent; font-weight: 500; }
.latest-posts a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* freshness indicators on each post */
.post-pulse {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-right: 2px;
}
.post-pulse.pulse-1 {
  background: #e63946;
  box-shadow: 0 0 6px rgba(230, 57, 70, 0.55);
  animation: post-blink-fast 1.4s ease-in-out infinite;
}
.post-pulse.pulse-2 {
  background: #e89c3a;
  box-shadow: 0 0 5px rgba(232, 156, 58, 0.45);
  animation: post-blink-slow 2.6s ease-in-out infinite;
}
.post-pulse.pulse-3,
.post-pulse.pulse-4,
.post-pulse.pulse-5 {
  background: var(--muted);
  opacity: 0.6;
}
@keyframes post-blink-fast {
  0%, 100% { opacity: 1;    transform: scale(1); }
  50%      { opacity: 0.45; transform: scale(0.75); }
}
@keyframes post-blink-slow {
  0%, 100% { opacity: 0.95; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.8); }
}
@media (prefers-reduced-motion: reduce) {
  .post-pulse.pulse-1, .post-pulse.pulse-2 { animation: none; }
}

/* ---- Currently-obsessed-with block ---- */
.now-block {
  margin-top: 32px;
  padding: 18px 22px;
  background: var(--card);
  border-left: 2px solid var(--accent);
  border-radius: 0 6px 6px 0;
}
.now-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 0 0 12px;
}
.blink-dot {
  display: inline-block;
  width: 9px; height: 9px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  box-shadow:
    0 0 6px var(--accent),
    0 0 14px var(--accent-soft);
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1;    transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.85); }
}
.obsessions { list-style: none; padding: 0; margin: 0; }
.obsessions li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.97rem;
}
.obsessions li:last-child { border-bottom: none; }
.obsessions b { color: var(--ink); }

/* ---- Lists ---- */
ul.stack, ol.papers { list-style: none; padding: 0; margin: 0; }
ul.stack li, ol.papers li { padding: 14px 0; border-bottom: 1px solid var(--rule); }
ul.stack li:last-child, ol.papers li:last-child { border-bottom: none; }
ol.papers { counter-reset: paper; }
ol.papers li { counter-increment: paper; padding-left: 32px; position: relative; }
ol.papers li::before {
  content: counter(paper, decimal-leading-zero);
  position: absolute; left: 0; top: 16px;
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.card {
  padding: 20px 22px;
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--rule);
}
.card h3 { margin-top: 0; }
.card h3 a { color: var(--ink); border-bottom: 1px solid var(--accent); }
.card h3 a:hover { color: var(--accent); }

/* ---- Mottos ---- */
ul.mottos { list-style: none; padding: 0; margin: 0; }
ul.mottos li {
  padding: 10px 18px;
  border-left: 2px solid var(--rule);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-style: italic;
  color: var(--ink);
  font-size: 1.04rem;
  line-height: 1.5;
  transition: border-left-color .2s ease, padding-left .2s ease;
}
ul.mottos li:hover { border-left-color: var(--accent); padding-left: 22px; }

/* ---- Footer ---- */
.site-footer {
  width: 100%;
  border-top: 1px solid var(--rule);
  background: color-mix(in srgb, var(--card) 60%, var(--bg));
  margin-top: 60px;
  padding: 36px 36px 28px;
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.footer-col h2 {
  margin: 0 0 10px;
  border-bottom: none;
  padding-bottom: 0;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--muted);
}
.footer-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
  letter-spacing: 0.02em;
}
ul.links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; }
ul.links li::before { content: "·\00a0"; color: var(--muted); }
ul.links li:first-child::before { content: ""; }
@media (max-width: 600px) {
  .site-footer { padding: 28px 18px 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
}
.brag-aside { display: block; margin-top: 4px; font-size: 0.86rem; color: var(--muted); }
.cite-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 7px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 3px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  vertical-align: 1px;
  white-space: nowrap;
}
.cite-badge.muted { color: var(--muted); border-color: var(--rule); background: transparent; }
.cite-badge .cite-count { font-weight: 700; }
.cite-badge .cite-src { opacity: 0.6; font-size: 0.72rem; }
.cite-badge a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
/* Stack the paper citation, the editorial note, and the badge strip on
   their own lines so the metadata never breaks the prose. */
ol.papers li .paper-cite { display: block; }
ol.papers li .paper-note { display: block; margin-top: 6px; }
ol.papers li .paper-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  min-height: 28px;
}
.roadmap-target {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-right: 8px;
  text-transform: uppercase;
}

/* ---- Upvote buttons ---- */
.bucket-list li { display: flex; align-items: flex-start; gap: 12px; }
.bucket-list .bucket-text { flex: 1; }
.upvote {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px;
  min-width: 56px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  flex-shrink: 0;
  margin-top: 2px;
}
.upvote .up-arrow { font-size: 0.78rem; line-height: 1; transition: transform .15s ease; }
.upvote:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.upvote:hover .up-arrow { transform: translateY(-1px); }
.upvote.voted {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
  cursor: default;
}
.upvote.voted:hover { transform: none; }

/* ---- Quiet visit tally ---- */
.visit-tally {
  position: fixed;
  bottom: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  z-index: 5;
  pointer-events: none;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 8px var(--accent-soft);
  user-select: none;
}
.visit-tally::before {
  content: "▮ ";
  opacity: 0.55;
  font-size: 0.85em;
}

/* ---- Landing mode ---- */
body.landing main > section:not(.hero) { display: none; }
body.landing .now-block { display: none; }
body.landing .hero-photo .photo-caption { animation: pulseCaption 2.4s ease-in-out infinite; }
@keyframes pulseCaption {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}
body:not(.landing) main > section:not(.hero) { animation: revealFade 0.45s ease-out; }
@keyframes revealFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Sidebar TOC ---- */
.toc {
  position: fixed;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  display: none;
  max-width: 170px;
  opacity: 0;
  animation: tocFadeIn 0.5s ease-out 0.3s forwards;
}
body:not(.landing) .toc { display: block; }
@keyframes tocFadeIn {
  from { opacity: 0; transform: translateY(-50%) translateX(-8px); }
  to   { opacity: 1; transform: translateY(-50%) translateX(0); }
}
.toc-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  opacity: 0.6;
  margin: 0 0 14px 18px;
  display: flex; align-items: center; gap: 6px;
}
.toc-progress {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--card);
  color: var(--ink);
  font-size: 0.62rem;
  letter-spacing: 0;
  opacity: 0.8;
  min-width: 28px;
  text-align: center;
}
.toc ul { list-style: none; padding: 0; margin: 0; position: relative; }
.toc ul::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--rule);
}
.toc a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 8px 5px 0;
  color: var(--muted);
  border-bottom: none;
  position: relative;
  opacity: 0.65;
  transition: opacity .25s ease, color .25s ease, transform .25s ease;
}
.toc-dot { display: inline-block; width: 13px; height: 13px; flex-shrink: 0; position: relative; }
.toc-dot::before {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 6px; height: 6px;
  background: var(--rule);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px var(--bg);
  transition: width .25s ease, height .25s ease, background .25s ease;
}
.toc-name { transition: transform .25s ease; }
.toc a:hover { color: var(--ink); opacity: 1; }
.toc a:hover .toc-dot::before { background: var(--accent); width: 8px; height: 8px; }
.toc a:hover .toc-name { transform: translateX(2px); }
.toc a.active { color: var(--ink); opacity: 1; font-weight: 600; }
.toc a.active .toc-dot::before {
  background: var(--accent);
  width: 10px; height: 10px;
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 4px var(--accent-soft);
}
@media (max-width: 1180px) { .toc { display: none !important; } }

/* ---- Blog list + post ---- */
.blog-header { margin-top: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--rule); }
.blog-header h1 { font-size: 2rem; margin: 0 0 8px; }

.post-list { list-style: none; padding: 0; margin: 24px 0 0; }
.post-list > li {
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}
.post-list > li:last-child { border-bottom: none; }
.post-list h3 { margin: 0 0 4px; }
.post-list h3 a { color: var(--ink); border-bottom: 1px solid transparent; }
.post-list h3 a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin: 0 0 6px;
  text-transform: uppercase;
}

.post .post-header { margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--rule); }
.post .post-title { font-size: 2rem; margin: 0 0 6px; line-height: 1.2; }
.post .post-subtitle { color: var(--muted); margin: 0; font-size: 1.05rem; }
.post-body p, .post-body ul, .post-body ol { margin: 0 0 16px; }
.post-body h2, .post-body h3, .post-body h4 {
  border: none; padding: 0;
  text-transform: none; letter-spacing: -0.01em;
  color: var(--ink); margin: 28px 0 10px;
}
.post-body h2 { font-size: 1.4rem; }
.post-body h3 { font-size: 1.18rem; }
.post-body ul, .post-body ol { padding-left: 22px; }
.post-body li { margin: 4px 0; }
.post-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 16px 0; padding: 6px 18px;
  color: var(--muted); font-style: italic;
}
.post-body code {
  background: var(--card);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}
.post-body pre {
  background: var(--card);
  padding: 14px 16px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
}
.post-body pre code { background: none; padding: 0; border-radius: 0; }
.post-foot { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--rule); }

/* ---- Tutorials ---- */
.tutorial-list .tutorial-card { padding: 18px 0; }
.t-level {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-right: 6px;
}
.t-pending { color: var(--muted); }
.status {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--rule);
  margin-left: 4px;
}
.status-coming-soon { color: var(--muted); border-style: dashed; }
.status-draft       { color: var(--muted); }
.status-published   { color: var(--accent); border-color: var(--accent); }

.tutorial-actions {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 16px 0 4px;
}
.btn-action {
  display: inline-flex; align-items: center;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--card);
  text-decoration: none;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.btn-action:hover {
  border-color: var(--accent);
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---- Word reel (vertical scrolling cycle) ---- */
.word-reel {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 24px 0 32px;
  padding: 18px 22px;
  background: var(--card);
  border-left: 2px solid var(--accent);
  border-radius: 0 6px 6px 0;
  overflow: hidden;
}
.reel-label {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.reel-track {
  display: inline-flex;
  flex-direction: column;
  height: 1.6em;
  overflow: hidden;
  position: relative;
}
.reel-word {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
  height: 1.6em;
  line-height: 1.6em;
  animation: reel-up 16s cubic-bezier(.7,0,.3,1) infinite;
}
@keyframes reel-up {
  0%, 9%   { transform: translateY(0); }
  11%, 20% { transform: translateY(-1.6em); }
  22%, 31% { transform: translateY(-3.2em); }
  33%, 42% { transform: translateY(-4.8em); }
  44%, 53% { transform: translateY(-6.4em); }
  55%, 64% { transform: translateY(-8em); }
  66%, 75% { transform: translateY(-9.6em); }
  77%, 86% { transform: translateY(-11.2em); }
  88%, 100%{ transform: translateY(-12.8em); }
}
@media (prefers-reduced-motion: reduce) {
  .reel-word { animation: none; }
}

/* ---- Flow diagram ---- */
.flow-diagram {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 14px;
  margin: 28px 0 32px;
  padding: 22px 14px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--card);
}
.flow-step {
  flex: 1;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  min-width: 0;
}
.flow-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--bg);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  font-family: var(--font-mono);
  position: relative;
  transition: transform .25s ease;
}
.flow-step:hover .flow-icon { transform: translateY(-3px) rotate(-3deg); }
.flow-in  { animation: flow-pop 4s ease-in-out 0s   infinite; }
.flow-mid { animation: flow-pop 4s ease-in-out 1.3s infinite; }
.flow-out { animation: flow-pop 4s ease-in-out 2.6s infinite; }
@keyframes flow-pop {
  0%, 100%      { box-shadow: 0 0 0 0 var(--accent-soft); }
  10%           { box-shadow: 0 0 0 8px var(--accent-soft); }
  25%, 95%      { box-shadow: 0 0 0 0 transparent; }
}
.flow-pulse {
  position: absolute; inset: 6px;
  border-radius: 10px;
  border: 1px dashed var(--accent);
  animation: flow-spin 6s linear infinite;
  opacity: 0.5;
}
@keyframes flow-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.flow-label {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.92rem;
  margin: 6px 0 0;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.flow-sub {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}
.flow-arrow {
  align-self: center;
  font-size: 1.4rem;
  color: var(--muted);
  font-family: var(--font-mono);
}
@media (max-width: 600px) {
  .flow-diagram { flex-direction: column; gap: 8px; }
  .flow-arrow { transform: rotate(90deg); }
}
@media (prefers-reduced-motion: reduce) {
  .flow-in, .flow-mid, .flow-out, .flow-pulse { animation: none; }
}

/* ---- Mobile ---- */
@media (max-width: 600px) {
  main { padding: 44px 18px 64px; }
  .hero-row { flex-direction: column; gap: 18px; align-items: flex-start; }
  .hero-photo { align-self: flex-start; }
  .hero-photo .photo { width: 100px; height: 100px; }
  .hero-photo .photo-fallback { font-size: 2.2rem; }
  h1 { font-size: 1.85rem; }
  body { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}