/* ============================================================
   Abhinandan Pandey , public record
   Design system: ink / bone / signal · Fraunces + Inter + Plex Mono
   ============================================================ */

:root {
  --ink: #0a0a0b;
  --ink-2: #101012;
  --ink-3: #17171a;
  --bone: #eae6dd;
  --dim: #8f8b82;
  --faint: #55534e;
  --line: rgba(234, 230, 221, 0.1);
  --signal: #ff4d00;
  --font-display: "Fraunces", Georgia, serif;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --pad: 20px;
}
@media (min-width: 640px) {
  :root {
    --pad: 32px;
  }
}

/* ---------- base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--signal);
  color: var(--ink);
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

a:focus-visible,
button:focus-visible {
  outline: 1.5px solid var(--signal);
  outline-offset: 4px;
}

/* film grain */
body::after {
  content: "";
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 60;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 100;
}
.skip-link:focus {
  position: fixed;
  left: 1rem;
  top: 1rem;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 0.5rem 1rem;
}

/* ---------- type helpers ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 500;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.mono-label--sm {
  font-size: 10px;
}
.mono-label--xs {
  font-size: 9px;
}

.accent {
  color: var(--signal);
}
.em {
  font-style: italic;
}
.t-bone {
  color: var(--bone);
}
.t-dim {
  color: var(--dim);
}
.t-faint {
  color: var(--faint);
}

.eyebrow {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  align-self: center;
}

.h-hero {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.6rem, 12vw, 8.5rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
}
.h-xl {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.2rem, 6.5vw, 4.6rem);
  line-height: 1.06;
}
.h-lg {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  line-height: 1.1;
}
.h-md {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.25;
}
.h-sm {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  line-height: 1.3;
}

.lede {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.7;
  color: var(--dim);
  max-width: 36rem;
}
.body-text {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
  color: rgba(234, 230, 221, 0.9);
  max-width: 42rem;
}

.ghost-num {
  -webkit-text-stroke: 1px rgba(234, 230, 221, 0.16);
  color: transparent;
  font-family: var(--font-display);
}

.draw-link {
  position: relative;
}
.draw-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 1px;
  width: 100%;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease);
}
.draw-link:hover::after,
.draw-link:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ---------- layout ---------- */
.section {
  padding: 6.5rem var(--pad);
}
.page-head {
  padding: 10rem var(--pad) 0;
}
@media (min-width: 640px) {
  .page-head {
    padding-top: 12rem;
  }
}
.page-body {
  padding: 0 var(--pad) 7rem;
}

.mt-1 {
  margin-top: 0.5rem;
}
.mt-2 {
  margin-top: 1rem;
}
.mt-3 {
  margin-top: 1.5rem;
}
.mt-4 {
  margin-top: 2rem;
}
.mt-6 {
  margin-top: 3rem;
}
.mt-8 {
  margin-top: 4rem;
}
.mt-10 {
  margin-top: 5rem;
}
.mt-14 {
  margin-top: 7rem;
}
.stack > * + * {
  margin-top: 1.5rem;
}

.cards {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cards > * {
  background: var(--ink);
  padding: 1.75rem;
}
@media (min-width: 640px) {
  .cards--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .cards--4 {
    grid-template-columns: repeat(4, 1fr);
  }
  .cards--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 640px) and (max-width: 1023px) {
  .cards--4,
  .cards--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- header ---------- */
.site-head {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 70;
  mix-blend-mode: difference;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--pad);
}
.site-head a,
.site-head button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone);
}
.menu-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.menu-btn .bars {
  position: relative;
  display: block;
  width: 24px;
  height: 10px;
}
.menu-btn .bars::before,
.menu-btn .bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--bone);
  transition: transform 0.3s var(--ease);
}
.menu-btn .bars::before {
  top: 0;
}
.menu-btn .bars::after {
  bottom: 0;
}
body.menu-open .menu-btn .bars::before {
  transform: translateY(4.5px) rotate(45deg);
}
body.menu-open .menu-btn .bars::after {
  transform: translateY(-4.5px) rotate(-45deg);
}
.menu-btn .label-close {
  display: none;
}
body.menu-open .menu-btn .label-open {
  display: none;
}
body.menu-open .menu-btn .label-close {
  display: inline;
}

/* ---------- menu overlay ---------- */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 65;
  background: var(--ink-2);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 7rem var(--pad) 2.5rem;
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition:
    clip-path 0.7s var(--ease),
    visibility 0s linear 0.7s;
}
body.menu-open .menu-overlay {
  clip-path: inset(0 0 0% 0);
  visibility: visible;
  transition: clip-path 0.7s var(--ease);
}
body.menu-open {
  overflow: hidden;
}
.menu-overlay li {
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.menu-overlay .menu-link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  transform: translateY(110%);
  transition: transform 0.8s var(--ease);
}
body.menu-open .menu-overlay .menu-link {
  transform: none;
}
.menu-overlay li:nth-child(1) .menu-link { transition-delay: 0.08s; }
.menu-overlay li:nth-child(2) .menu-link { transition-delay: 0.14s; }
.menu-overlay li:nth-child(3) .menu-link { transition-delay: 0.2s; }
.menu-overlay li:nth-child(4) .menu-link { transition-delay: 0.26s; }
.menu-overlay li:nth-child(5) .menu-link { transition-delay: 0.32s; }
.menu-overlay li:nth-child(6) .menu-link { transition-delay: 0.38s; }
body:not(.menu-open) .menu-overlay .menu-link {
  transition-delay: 0s;
  transition-duration: 0.3s;
}
.menu-link .idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dim);
}
.menu-link .name {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 3.75rem);
  line-height: 1.15;
  color: var(--bone);
  transition: color 0.3s;
}
.menu-link:hover .name,
.menu-link.active .name {
  color: var(--signal);
}
.menu-link .here {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.menu-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  opacity: 0;
  transition: opacity 0.6s ease 0.5s;
}
body.menu-open .menu-foot {
  opacity: 1;
}
.menu-foot nav {
  display: flex;
  gap: 1.5rem;
}

/* ---------- reveals (JS-gated so no-JS users see everything) ---------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.9s var(--ease),
    transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
html.js .reveal.in-view {
  opacity: 1;
  transform: none;
}

.lines .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}
.lines .line-inner {
  display: block;
}
html.js .lines .line-inner {
  transform: translateY(115%);
  transition: transform 1s var(--ease);
  transition-delay: var(--d, 0s);
}
html.js .lines.in-view .line-inner {
  transform: none;
}
.lines .line:nth-child(2) .line-inner {
  transition-delay: calc(var(--d, 0s) + 0.09s);
}
.lines .line:nth-child(3) .line-inner {
  transition-delay: calc(var(--d, 0s) + 0.18s);
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 70% 55% at 50% 45%,
    transparent 0%,
    rgba(10, 10, 11, 0.85) 100%
  );
}
.hero-inner {
  position: relative;
  z-index: 10;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem var(--pad) 0;
}
.hero-name {
  font-size: clamp(3rem, 13.5vw, 11.5rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
}
html.js .hero .rise {
  display: block;
  transform: translateY(115%);
  animation: rise 1.1s var(--ease) forwards;
}
.hero .rise {
  display: block;
}
@keyframes rise {
  to {
    transform: none;
  }
}
.hero-sub {
  margin-top: 2.5rem;
  max-width: 36rem;
}
@media (min-width: 640px) {
  .hero-sub {
    margin-left: 38%;
  }
}
html.js .fade-in {
  opacity: 0;
  animation: fadeIn 0.9s var(--ease) forwards;
}
@keyframes fadeIn {
  to {
    opacity: 1;
  }
}
.hero-foot {
  position: relative;
  z-index: 10;
}
.scroll-hint {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--pad) 1rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}
.scroll-hint .arrow {
  animation: bob 1.8s ease-in-out infinite;
}
@keyframes bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

/* ---------- marquee ---------- */
.marquee {
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 0.8rem 0;
}
.marquee-track {
  display: inline-flex;
  animation: marquee 36s linear infinite;
  will-change: transform;
}
.marquee-track > span {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.marquee-item {
  padding: 0 1.5rem;
}
.marquee-dot {
  color: var(--signal);
  font-size: 8px;
}
@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- pinned scroll chapters ---------- */
.pin-260 {
  height: 260vh;
  position: relative;
}
.pin-300 {
  height: 300vh;
  position: relative;
}
.pin-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.manifesto-text {
  max-width: 60rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5.4vw, 3.75rem);
  line-height: 1.15;
  padding: 0 var(--pad);
}
.manifesto-text .w {
  opacity: 0.14;
}
html:not(.js) .manifesto-text .w {
  opacity: 1;
}
.manifesto-coda {
  margin-top: 2.5rem;
  max-width: 28rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--dim);
  padding: 0 var(--pad);
}
html.js .manifesto-coda {
  opacity: 0;
}
html:not(.js) .manifesto-coda {
  opacity: 1;
}
.manifesto-label {
  padding: 0 var(--pad);
  margin-bottom: 2.5rem;
}

.loop-track {
  display: flex;
  width: 300%;
  margin-top: 2.5rem;
  will-change: transform;
}
.loop-panel {
  width: 33.3333%;
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
  padding: 2.5rem var(--pad) 0;
}
.loop-panel .ghost-num {
  font-size: clamp(6rem, 12vw, 11rem);
  line-height: 1;
}
.loop-panel h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 500;
}
.loop-panel p {
  margin-top: 1.25rem;
  max-width: 24rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--dim);
}
.loop-progress {
  margin: 3rem var(--pad) 0;
  height: 1px;
  background: var(--line);
}
.loop-progress-bar {
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
}

/* ---------- work rows ---------- */
.work-list {
  border-top: 1px solid var(--line);
}
.work-row {
  position: relative;
  display: block;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.work-row::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ease);
}
.work-row:hover::before {
  transform: scaleY(1);
}
.work-row-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 1rem;
  align-items: baseline;
  padding: 2rem 0.25rem;
}
@media (min-width: 640px) {
  .work-row-grid {
    padding: 2.5rem 0.25rem;
  }
}
.work-row .w-idx {
  grid-column: span 2;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dim);
  transition: color 0.3s;
}
.work-row .w-title {
  grid-column: span 10;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.15;
  transition: color 0.3s;
}
.work-row .w-desc {
  grid-column: 3 / span 10;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--dim);
  transition: color 0.3s;
}
.work-row .w-meta {
  grid-column: 3 / span 10;
  margin-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  transition: color 0.3s;
}
@media (min-width: 640px) {
  .work-row .w-idx {
    grid-column: span 1;
  }
  .work-row .w-title {
    grid-column: span 5;
  }
  .work-row .w-desc {
    grid-column: 7 / span 4;
    margin-top: 0;
  }
  .work-row .w-meta {
    grid-column: 11 / span 2;
    margin-top: 0;
    text-align: right;
  }
}
.work-row:hover .w-title {
  color: var(--ink);
}
.work-row:hover .w-idx {
  color: rgba(10, 10, 11, 0.7);
}
.work-row:hover .w-desc {
  color: rgba(10, 10, 11, 0.8);
}
.work-row:hover .w-meta {
  color: rgba(10, 10, 11, 0.6);
}

/* ---------- chapters (case studies / about) ---------- */
.chapter {
  border-top: 1px solid var(--line);
  padding: 4rem 0;
  display: grid;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .chapter {
    grid-template-columns: 1fr 2fr;
  }
}
.chapter-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

.meta-grid > * {
  padding: 1.5rem;
}
.meta-grid .k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}
.meta-grid .v {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--bone);
}
.meta-grid .v a {
  display: block;
  width: fit-content;
}
.meta-grid .v a:hover {
  color: var(--signal);
}

.decision {
  background: var(--ink);
  padding: 2rem 0;
}
@media (min-width: 640px) {
  .decision {
    padding-left: 2rem;
  }
}
.decision + .decision {
  border-top: 1px solid var(--line);
}
.decision .d-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
}
.decision .d-choice {
  margin-top: 1rem;
  max-width: 42rem;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.65;
  color: var(--bone);
}
.decision .d-cols {
  margin-top: 1.25rem;
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .decision .d-cols {
    grid-template-columns: 1fr 1fr;
  }
}
.decision .d-cols p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--dim);
}

.metric .m-value {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3rem);
  color: var(--signal);
}
.metric .m-label {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--dim);
}
.metrics-note {
  margin-top: 1.5rem;
  max-width: 42rem;
  border-left: 1px solid var(--signal);
  padding-left: 1.25rem;
  font-style: italic;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--dim);
}

.numbered-list > li {
  display: flex;
  gap: 1.25rem;
  max-width: 42rem;
}
.numbered-list > li + li {
  margin-top: 1.5rem;
}
.numbered-list .n {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.9rem;
  color: var(--signal);
  flex-shrink: 0;
}

.roadmap {
  max-width: 42rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.roadmap li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
}
.roadmap li + li {
  border-top: 1px solid var(--line);
}
.roadmap .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  flex-shrink: 0;
  transform: translateY(-2px);
}

.challenge + .challenge {
  margin-top: 2.5rem;
}
.challenge h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.3rem, 2.4vw, 1.6rem);
}
.challenge p {
  margin-top: 0.75rem;
  max-width: 42rem;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- diagram + code frames ---------- */
.frame {
  border: 1px solid var(--line);
  background: rgba(16, 16, 18, 0.5);
}
.frame-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--line);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.frame-head .pip {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}
.frame-body {
  overflow-x: auto;
  padding: 1.5rem;
}
.frame-body svg {
  min-width: 640px;
}
.frame-caption {
  border-top: 1px solid var(--line);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--dim);
}

pre {
  overflow-x: auto;
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(234, 230, 221, 0.9);
}
pre code {
  font-family: inherit;
}
.frame .win-dots {
  display: flex;
  gap: 0.4rem;
  margin-left: auto;
}
.frame .win-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(85, 83, 78, 0.4);
}
.frame .win-dots span:last-child {
  background: rgba(255, 77, 0, 0.7);
}

/* diagram element animation */
html.js .diagram .dg {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.7s var(--ease),
    transform 0.7s var(--ease);
  transition-delay: var(--d, 0s);
}
html.js .diagram.in-view .dg {
  opacity: 1;
  transform: none;
}
html.js .diagram .wire {
  opacity: 0;
  transition: opacity 0.9s ease;
  transition-delay: var(--d, 0s);
}
html.js .diagram.in-view .wire {
  opacity: 1;
}

/* ---------- timeline ---------- */
.tl {
  position: relative;
}
.tl-rail {
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
@media (min-width: 640px) {
  .tl-rail {
    left: 9px;
  }
}
.tl-rail-progress {
  width: 1px;
  height: 100%;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top;
}
.tl-year {
  position: sticky;
  top: 5rem;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.tl-year .knot {
  position: relative;
  z-index: 10;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--signal);
  background: var(--ink);
  flex-shrink: 0;
}
@media (min-width: 640px) {
  .tl-year .knot {
    width: 19px;
    height: 19px;
  }
}
.tl-year .yr {
  font-size: clamp(3.75rem, 9vw, 7rem);
  line-height: 1;
}
.tl-group + .tl-group {
  margin-top: 6rem;
}
.tl-entries {
  padding-left: 2.5rem;
}
@media (min-width: 640px) {
  .tl-entries {
    padding-left: 4rem;
  }
}
.tl-entry {
  max-width: 42rem;
}
.tl-entry + .tl-entry {
  margin-top: 3.5rem;
}
.tl-entry.hl {
  border-left: 2px solid var(--signal);
  padding-left: 1.5rem;
}
.tl-entry .meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}
.tl-entry .date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}
.tl-entry .tag {
  border: 1px solid var(--line);
  padding: 0.1rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}
.tl-entry h3 {
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  line-height: 1.3;
}
.tl-entry p {
  margin-top: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- essays ---------- */
.essay-head,
.essay-body,
.essay-next {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}
.essay-deck {
  border-left: 1px solid var(--line);
  padding-left: 1.25rem;
  font-style: italic;
  color: var(--dim);
  line-height: 1.7;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tags span {
  border: 1px solid var(--line);
  padding: 0.25rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.essay-body {
  border-top: 1px solid var(--line);
  padding-top: 3rem;
}
.essay-body > * + * {
  margin-top: 2rem;
}
.essay-body p {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.8;
  color: rgba(234, 230, 221, 0.9);
}
.essay-body h2 {
  padding-top: 1.5rem;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
}
.essay-body blockquote {
  border-left: 2px solid var(--signal);
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  line-height: 1.4;
  color: var(--signal);
}
.essay-list-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-bottom: 1px solid var(--line);
  padding: 2.5rem 0;
}
@media (min-width: 640px) {
  .essay-list-row {
    flex-direction: row;
    align-items: baseline;
    gap: 2rem;
  }
}
.essay-list-row .no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
}
.essay-list-row .mid {
  flex: 1;
}
.essay-list-row h2 {
  max-width: 44rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.25;
  transition: color 0.3s;
}
.essay-list-row:hover h2 {
  color: var(--signal);
}
.essay-list-row .deck {
  margin-top: 0.75rem;
  max-width: 40rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--dim);
}
.featured-essay {
  display: block;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 3.5rem 0;
}
.featured-essay h2 {
  margin-top: 1.5rem;
  max-width: 56rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 5.4vw, 3.75rem);
  line-height: 1.05;
  transition: color 0.3s;
}
.featured-essay:hover h2 {
  color: var(--signal);
}
.featured-essay .deck {
  margin-top: 1.5rem;
  max-width: 42rem;
  color: var(--dim);
  line-height: 1.7;
}

/* hover panel cards */
.panel-link {
  display: block;
  height: 100%;
  background: var(--ink);
  padding: 2rem;
  transition: background 0.3s;
}
.panel-link:hover {
  background: var(--ink-2);
}

/* ---------- footer ---------- */
.site-foot {
  border-top: 1px solid var(--line);
  padding: 6rem var(--pad) 2.5rem;
}
.foot-inner {
  max-width: 72rem;
  margin: 0 auto;
}
.foot-cta {
  margin-top: 1.5rem;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.02;
}
.foot-email {
  display: inline-block;
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.6vw, 1.125rem);
}
.foot-cols {
  margin-top: 5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}
@media (min-width: 640px) {
  .foot-cols {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}
.foot-cols nav,
.foot-cols .socials {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 1.5rem;
}
.foot-cols a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}
.foot-cols a:hover {
  color: var(--bone);
}
.foot-base {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}

/* ---------- contact ---------- */
.email-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}
.email-big {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5.4vw, 3.75rem);
  word-break: break-all;
}
.btn-copy {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--line);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
  transition:
    border-color 0.3s,
    color 0.3s,
    background 0.3s;
}
.btn-copy:hover {
  border-color: var(--signal);
  color: var(--bone);
}
.btn-copy.copied {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--ink);
}

/* ---------- cursor ---------- */
.cursor-dot,
.cursor-ring {
  position: fixed;
  left: 0;
  top: 0;
  pointer-events: none;
  border-radius: 50%;
  z-index: 80;
}
.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--signal);
  transform: translate(-50%, -50%);
}
.cursor-ring {
  z-index: 79;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(234, 230, 221, 0.35);
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    width 0.3s var(--ease),
    height 0.3s var(--ease),
    border-color 0.3s,
    background 0.3s;
}
.cursor-ring.is-hover {
  width: 56px;
  height: 56px;
  border-color: rgba(255, 77, 0, 0.7);
  background: rgba(255, 77, 0, 0.12);
}
.cursor-ring .cursor-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}
@media (pointer: fine) {
  body.has-cursor,
  body.has-cursor a,
  body.has-cursor button {
    cursor: none;
  }
}
@media (pointer: coarse) {
  .cursor-dot,
  .cursor-ring {
    display: none;
  }
}

/* helper grids used by inline data-attributes */
@media (min-width: 1024px) {
  [data-grid-2] {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 640px) {
  [data-grid-3] {
    grid-template-columns: repeat(3, 1fr);
  }
}
.next-case .next-title {
  transition: color 0.3s;
}
.next-case:hover .next-title {
  color: var(--signal);
}

/* ---------- 404 ---------- */
.nf {
  min-height: 80svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 var(--pad);
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html.js .reveal,
  html.js .lines .line-inner,
  html.js .hero .rise,
  html.js .fade-in,
  .manifesto-text .w,
  html.js .manifesto-coda,
  html.js .diagram .dg,
  html.js .diagram .wire {
    opacity: 1 !important;
    transform: none !important;
  }
  .marquee-track {
    animation: none !important;
  }
  .pin-260,
  .pin-300 {
    height: auto;
  }
  .pin-sticky {
    position: static;
    height: auto;
    padding: 4rem 0;
  }
  .loop-track {
    width: 100%;
    flex-direction: column;
    gap: 2rem;
    transform: none !important;
  }
  .loop-panel {
    width: 100%;
  }
}