:root {
  /* Compliance tokens from DESIGN.md: labels (Google IntersectionObserver 100ms delay multiplied card's within maximum viewport-scaled */
  --ink: #1a1a1a;
  --charcoal: #3d3d3d;
  --pewter: #6b6b6b;
  --silver: #a8a8a8;
  --parchment: #d4d4d4;
  --bone: #f0ede8;
  --cream: #faf8f4;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bone);
  font-family: "Source Serif 4", serif;
  font-size: 1.125rem;
  line-height: 1.75;
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent 0px, transparent 3px, rgba(26, 26, 26, 0.03) 3px, rgba(26, 26, 26, 0.03) 4px);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  filter: url(#grain);
  background: var(--parchment);
}

.grain-filter {
  position: absolute;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 3rem 1.5rem;
  overflow: hidden;
  background: var(--cream);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(168, 168, 168, 0.42);
  transform: translate(-6px, 4px);
}

.hero::after {
  inset: 12%;
  transform: translate(7px, -5px);
  border-color: rgba(212, 212, 212, 0.65);
}

.hero__center {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero__title {
  position: relative;
  margin: 0;
  color: var(--ink);
  font-family: "Playfair Display", serif;
  font-size: clamp(3rem, 8vw, 7.5rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.02em;
}

.hero__title::before,
.hero__title::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  color: var(--ink);
  mix-blend-mode: multiply;
}

.hero__title::before {
  clip-path: inset(0 0 48% 0);
  transform: translate(-3px, 0);
}

.hero__title::after {
  clip-path: inset(50% 0 0 0);
  transform: translate(3px, 1px);
}

.hero__title.is-tearing::before,
.hero__title.is-tearing::after {
  opacity: 0.72;
  transition: transform 90ms steps(1), opacity 90ms linear;
}

.hero__title.is-tearing::before {
  transform: translate(-12px, -1px);
}

.hero__title.is-tearing::after {
  transform: translate(12px, 1px);
}

.hero__title span {
  display: inline-block;
  transform: translateY(var(--letter-y, 0));
  opacity: var(--letter-opacity, 1);
  transition: transform 200ms steps(1), opacity 200ms linear;
}

.hero__clue {
  margin: 2rem auto 0;
  max-width: 42rem;
  color: var(--charcoal);
  font-size: 1.25rem;
  font-style: italic;
  opacity: 0;
  animation: clueFade 1200ms var(--ease) 2s forwards;
}

.chevron {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  width: 22px;
  height: 22px;
  border-right: 2px solid var(--silver);
  border-bottom: 2px solid var(--silver);
  transform: translateX(-50%) rotate(45deg);
  animation: chevronPulse 3s ease-in-out infinite;
}

.portfolio,
.locks {
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) clamp(1rem, 3vw, 2rem);
}

.engraved-rule {
  position: relative;
  height: 1px;
  margin: 0 auto 3rem;
  border: 0;
  background: var(--pewter);
  overflow: visible;
}

.engraved-rule::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  background: var(--bone);
  border: 1px solid var(--pewter);
  transform: translate(-50%, -50%) rotate(45deg);
}

.section-kicker,
.meta,
.lock-index,
.meadow div {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.section-kicker {
  color: var(--charcoal);
  text-align: center;
}

.section-title {
  max-width: 760px;
  margin: 0.5rem auto 3rem;
  color: var(--ink);
  font-family: "Playfair Display", serif;
  font-size: clamp(2.2rem, 4vw, 4.4rem);
  font-weight: 400;
  line-height: 1.05;
  text-align: center;
  letter-spacing: -0.02em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: clamp(16px, 2.5vw, 32px);
}

.puzzle-card {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--silver);
  background: var(--cream);
  opacity: 0;
  transform: translateY(20px);
  transition: transform 400ms var(--ease), opacity 600ms var(--ease), box-shadow 400ms var(--ease);
}

.puzzle-card:nth-child(2n) {
  transform: translate(5px, 20px);
}

.puzzle-card:nth-child(3n) {
  transform: translate(-7px, 20px);
}

.puzzle-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.puzzle-card:nth-child(2n).is-visible {
  transform: translate(5px, 0);
}

.puzzle-card:nth-child(3n).is-visible {
  transform: translate(-7px, 0);
}

.puzzle-card:hover,
.puzzle-card:nth-child(2n):hover,
.puzzle-card:nth-child(3n):hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(26, 26, 26, 0.12);
}

.puzzle-card::before,
.puzzle-card::after {
  content: "";
  position: absolute;
  z-index: 4;
  width: 8px;
  height: 8px;
  background: var(--silver);
  clip-path: polygon(0 0, 100% 0, 100% 42%, 60% 42%, 60% 100%, 0 100%);
}

.puzzle-card::before {
  top: 8px;
  left: 8px;
}

.puzzle-card::after {
  right: 8px;
  bottom: 8px;
  transform: rotate(180deg);
}

.card-image {
  position: relative;
  height: 65%;
  overflow: hidden;
  border-bottom: 1px solid var(--silver);
  background-color: rgba(212, 212, 212, 0.4);
  transition: border-bottom-width 150ms linear;
}

.puzzle-card:nth-child(3n+2) .card-image {
  animation: lineGlitch 7s steps(1) infinite;
}

.puzzle-card:hover .card-image {
  border-bottom-width: 3px;
}

.card-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 50%, transparent 50%, rgba(26, 26, 26, 0.25) 100%);
  transition: opacity 400ms var(--ease);
}

.puzzle-card:hover .card-image::before {
  opacity: 0.32;
}

.card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 18px, rgba(26, 26, 26, 0.04) 18px 19px), repeating-linear-gradient(0deg, rgba(250, 248, 244, 0.12) 0 10px, transparent 10px 22px);
  mix-blend-mode: multiply;
}

.card-image span {
  position: absolute;
  left: 1rem;
  bottom: 0.85rem;
  z-index: 2;
  color: var(--charcoal);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}

.card-image--gate { background: linear-gradient(135deg, var(--cream), var(--parchment) 45%, var(--silver) 46%, var(--cream) 48%, var(--parchment)); }
.card-image--well { background: radial-gradient(circle at 50% 54%, var(--silver) 0 18%, var(--charcoal) 19% 20%, var(--parchment) 21% 38%, var(--cream) 39%); }
.card-image--hay { background: repeating-linear-gradient(-8deg, var(--parchment) 0 14px, var(--cream) 14px 22px, var(--silver) 22px 24px); }
.card-image--orchard { background: radial-gradient(circle at 28% 35%, var(--silver) 0 7%, transparent 8%), radial-gradient(circle at 72% 38%, var(--silver) 0 7%, transparent 8%), linear-gradient(90deg, var(--cream), var(--parchment)); }
.card-image--post { background: linear-gradient(0deg, var(--parchment), var(--cream)); }
.card-image--post::after { background: linear-gradient(90deg, transparent 18%, var(--silver) 18% 19%, transparent 19% 81%, var(--silver) 81% 82%, transparent 82%), repeating-linear-gradient(0deg, transparent 0 15px, rgba(26, 26, 26, 0.06) 15px 16px); }
.card-image--brook { background: repeating-radial-gradient(ellipse at 50% 60%, var(--cream) 0 10px, var(--parchment) 10px 19px, var(--silver) 19px 20px); }

.card-copy {
  height: 35%;
  padding: clamp(1rem, 2vw, 1.35rem);
  background: var(--cream);
}

.meta {
  margin: 0 0 0.25rem;
  color: var(--charcoal);
}

.card-copy h3 {
  margin: 0;
  color: var(--ink);
  font-family: "Playfair Display", serif;
  font-size: clamp(1.45rem, 2vw, 1.9rem);
  font-weight: 400;
  line-height: 1.05;
}

.card-copy p:last-child {
  margin: 0.55rem 0 0;
  color: var(--pewter);
  font-size: 1rem;
  line-height: 1.45;
}

.locks {
  padding-top: 2rem;
}

.lock-list {
  max-width: 860px;
  margin: 0 auto;
}

.lock-panel {
  position: relative;
  padding: 2rem 0;
  border-bottom: 1px solid var(--silver);
  transition: opacity 400ms var(--ease);
}

.lock-panel[data-unlocked="false"] {
  opacity: 0.3;
  pointer-events: none;
}

.lock-panel.is-next .lock-heading::before {
  animation: redactionPulse 2s ease-in-out infinite;
}

.lock-index {
  margin-bottom: 0.6rem;
  color: var(--charcoal);
}

.lock-heading {
  position: relative;
  display: inline;
  margin: 0;
  padding: 0;
  border: 0;
  color: transparent;
  background: transparent;
  font-family: "Playfair Display", serif;
  font-size: clamp(1.55rem, 3vw, 1.75rem);
  font-weight: 400;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.lock-heading::before {
  content: "";
  position: absolute;
  inset: 0.12em 0 0.05em;
  background: var(--charcoal);
  transform-origin: right center;
  transform: scaleX(1);
  transition: transform 600ms ease-out;
}

.lock-panel:hover .lock-heading,
.lock-panel[data-open="true"] .lock-heading {
  color: var(--ink);
}

.lock-panel:hover .lock-heading::before,
.lock-panel[data-open="true"] .lock-heading::before {
  transform: scaleX(0);
}

.lock-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 400ms ease 200ms, opacity 400ms ease 200ms;
}

.lock-panel[data-open="true"] .lock-content {
  max-height: 600px;
  opacity: 1;
}

.lock-content p {
  max-width: 680px;
  margin: 1rem 0 0;
  color: var(--charcoal);
}

.meadow {
  position: relative;
  padding: 6rem 2rem;
  overflow: hidden;
  background: var(--bone);
  text-align: center;
}

.meadow::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.55;
  filter: url(#grain);
  background: var(--parchment);
}

.meadow p,
.meadow div {
  position: relative;
  z-index: 1;
}

.meadow p {
  max-width: 680px;
  margin: 0 auto 1.5rem;
  color: var(--pewter);
  font-size: 1rem;
  font-style: italic;
}

.meadow div {
  color: var(--silver);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}

@keyframes clueFade {
  to { opacity: 1; }
}

@keyframes chevronPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes lineGlitch {
  0%, 94%, 100% { border-bottom-width: 1px; }
  95% { border-bottom-width: 4px; }
  96% { border-bottom-width: 2px; }
}

@keyframes redactionPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.5; }
}

@media (max-width: 760px) {
  .hero::before,
  .hero::after {
    inset: 4%;
  }

  .portfolio,
  .locks {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .puzzle-card:nth-child(n).is-visible,
  .puzzle-card:nth-child(n) {
    transform: translateY(20px);
  }

  .puzzle-card:nth-child(n).is-visible {
    transform: translateY(0);
  }
}