:root {
  color-scheme: dark;
  --ink: #fffaf1;
  --muted: #c9c3b9;
  --paper: #171514;
  --paper-2: #211d1a;
  --line: rgba(255, 250, 241, 0.16);
  --gold: #d6a85b;
  --teal: #7fb6aa;
  --rose: #d98989;
  --shadow: rgba(0, 0, 0, 0.35);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

.progress {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 4px;
  background: rgba(255, 250, 241, 0.08);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--teal), var(--rose));
}

.hero {
  min-height: 92vh;
  display: grid;
  align-content: space-between;
  padding: 24px clamp(18px, 4vw, 56px) 72px;
  background:
    linear-gradient(90deg, rgba(10, 9, 8, 0.9), rgba(10, 9, 8, 0.58) 47%, rgba(10, 9, 8, 0.18)),
    linear-gradient(180deg, rgba(10, 9, 8, 0.15), var(--paper)),
    url("assets/quiet-notes.png") center / cover;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.2rem;
}

.navlinks {
  display: flex;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(23, 21, 20, 0.5);
  backdrop-filter: blur(18px);
}

.navlinks a {
  min-width: 72px;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.navlinks a:hover,
.navlinks a.active {
  color: var(--ink);
  background: rgba(255, 250, 241, 0.12);
}

.hero-copy {
  width: min(760px, 100%);
}

.eyebrow,
.kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.02;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 8vw, 6.8rem);
}

.hero-line {
  display: inline;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(2.2rem, 5vw, 5.2rem);
}

h3 {
  margin-bottom: 12px;
  font-size: 1.22rem;
}

p {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.72;
}

.hero-copy > p {
  max-width: 620px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(640px, 100%);
  margin-top: 34px;
}

.hero-metrics div {
  min-height: 92px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(23, 21, 20, 0.58);
  backdrop-filter: blur(16px);
}

.hero-metrics strong,
.map-panel span {
  display: block;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.8rem;
  font-weight: 500;
}

.hero-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.35;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-align: center;
  color: var(--ink);
  background: rgba(255, 250, 241, 0.08);
  cursor: pointer;
  font: inherit;
}

.button.primary {
  border-color: rgba(214, 168, 91, 0.7);
  color: #161210;
  background: var(--gold);
}

.button.ghost:hover,
.button.primary:hover {
  filter: brightness(1.08);
}

main {
  position: relative;
}

.section-rail {
  position: fixed;
  z-index: 10;
  top: 50%;
  right: 22px;
  display: grid;
  gap: 12px;
  transform: translateY(-50%);
}

.section-rail a {
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 250, 241, 0.45);
  border-radius: 50%;
  background: rgba(23, 21, 20, 0.58);
}

.section-rail a.active {
  border-color: var(--gold);
  background: var(--gold);
}

.letter-section,
.memory-map,
.timeline-section,
.cards-section,
.portrait-section,
.accordion-section,
.feeling-section,
.path-section,
.ending {
  min-height: 100vh;
  padding: clamp(72px, 10vw, 136px) clamp(20px, 8vw, 124px);
}

.feeling-section,
.path-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.8fr);
  gap: clamp(28px, 6vw, 82px);
  align-items: center;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 75% 28%, rgba(217, 137, 137, 0.18), transparent 26%),
    linear-gradient(135deg, #171514, #1b211f 60%, #211917);
}

.path-section {
  background:
    radial-gradient(circle at 24% 32%, rgba(127, 182, 170, 0.18), transparent 28%),
    linear-gradient(135deg, #151918, #211d1a 68%, #171514);
}

.feeling-copy,
.path-copy {
  max-width: 840px;
}

.feeling-copy p,
.path-copy p {
  max-width: 720px;
}

.feeling-grid,
.path-builder {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.feeling-grid button,
.path-builder button {
  min-height: 90px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 250, 241, 0.06);
  box-shadow: 0 20px 60px var(--shadow);
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 3vw, 2.2rem);
}

.feeling-grid button.active,
.path-builder button.active {
  border-color: rgba(214, 168, 91, 0.7);
  color: #161210;
  background: var(--gold);
}

.feeling-output {
  grid-column: 2;
  min-height: 80px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.055);
}

.timeline-section {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(24, 22, 20, 0.98), rgba(21, 28, 25, 0.94)),
    var(--paper);
}

.timeline-head {
  max-width: 900px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 42px;
}

.timeline article {
  position: relative;
  min-height: 340px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.055);
  box-shadow: 0 20px 60px var(--shadow);
}

.timeline article::before {
  content: "";
  position: absolute;
  top: 38px;
  right: -13px;
  width: 14px;
  height: 1px;
  background: rgba(214, 168, 91, 0.5);
}

.timeline article:last-child::before {
  display: none;
}

.timeline span {
  display: block;
  margin-bottom: 48px;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
}

.timeline h3 {
  font-size: 1.25rem;
}

.timeline p {
  font-size: 0.96rem;
}

.memory-map {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 6vw, 86px);
  align-items: center;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(13, 23, 21, 0.94), rgba(23, 21, 20, 0.98)),
    var(--paper);
}

.map-header p {
  max-width: 620px;
}

.map-shell {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.055);
  box-shadow: 0 24px 80px var(--shadow);
}

.map-tabs,
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
}

.map-tab,
.filter-chip {
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 0.92rem;
}

.map-tab.active,
.filter-chip.active {
  border-color: rgba(214, 168, 91, 0.42);
  color: var(--ink);
  background: rgba(214, 168, 91, 0.15);
}

.map-panels {
  min-height: 330px;
  padding: clamp(22px, 4vw, 44px);
}

.map-panel {
  display: none;
}

.map-panel.active {
  display: grid;
  gap: 14px;
  animation: panelIn 380ms ease both;
}

.map-panel h3 {
  max-width: 620px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.8rem);
  font-weight: 500;
  line-height: 1.05;
}

.map-panel p {
  max-width: 560px;
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.letter-section {
  display: grid;
  grid-template-columns: 90px minmax(0, 940px);
  gap: clamp(24px, 6vw, 80px);
  align-items: center;
  border-top: 1px solid var(--line);
  background: linear-gradient(135deg, var(--paper), var(--paper-2));
}

.letter-section.split {
  background:
    radial-gradient(circle at 82% 24%, rgba(217, 137, 137, 0.18), transparent 28%),
    linear-gradient(135deg, #191615, #251b1a);
}

.section-number {
  align-self: start;
  padding-top: 12px;
  color: rgba(255, 250, 241, 0.28);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.4rem, 5vw, 5rem);
}

.section-body {
  max-width: 880px;
}

.section-body p {
  max-width: 720px;
}

.cards-section {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(rgba(13, 23, 21, 0.7), rgba(23, 21, 20, 0.96)),
    var(--paper);
}

.cards-section > h2 {
  max-width: 820px;
}

.accordion-section {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 18% 18%, rgba(127, 182, 170, 0.2), transparent 26%),
    linear-gradient(135deg, #151918, #221a18 72%, #171514);
}

.accordion-section > h2 {
  max-width: 960px;
}

.filter-bar {
  max-width: 980px;
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.045);
}

.accordion-list {
  display: grid;
  gap: 10px;
  max-width: 980px;
  margin-top: 34px;
}

.accordion-list details {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.055);
  box-shadow: 0 18px 50px var(--shadow);
}

.accordion-list details.filtered-out {
  display: none;
}

.accordion-list summary {
  display: grid;
  grid-template-columns: 58px 1fr 28px;
  align-items: center;
  gap: 16px;
  min-height: 72px;
  padding: 0 22px;
  cursor: pointer;
  list-style: none;
}

.accordion-list summary::-webkit-details-marker {
  display: none;
}

.accordion-list summary::after {
  content: "+";
  grid-column: 3;
  color: var(--gold);
  font-size: 1.8rem;
  line-height: 1;
}

.accordion-list details[open] summary::after {
  content: "-";
}

.accordion-list summary span {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
}

.accordion-list summary strong {
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  font-weight: 650;
}

.detail-body {
  display: grid;
  grid-template-rows: 1fr;
  padding: 0 22px 26px 96px;
}

.detail-body p {
  max-width: 760px;
  margin: 0;
}

.care-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 38px;
}

.care-grid article {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.06);
  box-shadow: 0 18px 50px var(--shadow);
}

.care-grid span {
  display: block;
  margin-bottom: 40px;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
}

.care-grid p {
  font-size: 0.98rem;
}

.portrait-section {
  display: grid;
  align-items: center;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 78% 22%, rgba(214, 168, 91, 0.2), transparent 24%),
    linear-gradient(135deg, #181614, #1c2320 58%, #151312);
}

.portrait-copy {
  max-width: 900px;
}

.portrait-copy p {
  max-width: 760px;
}

.ending {
  display: grid;
  align-content: center;
  justify-items: start;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(23, 21, 20, 0.96), rgba(12, 11, 10, 0.96)),
    var(--paper);
}

.ending p {
  max-width: 680px;
}

.unlock-note {
  width: min(720px, 100%);
  margin: 22px 0;
  padding: 20px;
  border: 1px solid rgba(214, 168, 91, 0.45);
  border-radius: 8px;
  background: rgba(214, 168, 91, 0.12);
}

.unlock-note.locked {
  border-color: var(--line);
  background: rgba(255, 250, 241, 0.045);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

body.letter-mode .navlinks,
body.letter-mode .section-rail,
body.letter-mode .progress {
  display: none;
}

body.letter-mode .hero {
  min-height: 80vh;
}

body.letter-mode .letter-section,
body.letter-mode .memory-map,
body.letter-mode .timeline-section,
body.letter-mode .cards-section,
body.letter-mode .portrait-section,
body.letter-mode .accordion-section,
body.letter-mode .feeling-section,
body.letter-mode .path-section,
body.letter-mode .ending {
  min-height: auto;
}

@media (max-width: 900px) {
  .navlinks {
    display: none;
  }

  .section-rail {
    right: 12px;
  }

  .letter-section {
    grid-template-columns: 1fr;
  }

  .memory-map {
    grid-template-columns: 1fr;
  }

  .feeling-section {
    grid-template-columns: 1fr;
  }

  .path-section {
    grid-template-columns: 1fr;
  }

  .feeling-output {
    grid-column: 1;
  }

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

  .timeline article {
    min-height: auto;
  }

  .timeline article::before {
    top: auto;
    right: auto;
    bottom: -13px;
    left: 34px;
    width: 1px;
    height: 14px;
  }

  .section-number {
    padding: 0;
  }

  .care-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .accordion-list summary {
    grid-template-columns: 44px 1fr 22px;
    padding: 0 16px;
  }

  .detail-body {
    padding: 0 16px 22px 76px;
  }
}

@media (max-width: 620px) {
  .hero {
    min-height: 94vh;
    padding-bottom: 42px;
  }

  h1 {
    font-size: clamp(1.9rem, 8vw, 2.15rem);
    line-height: 1.08;
  }

  .hero-line {
    display: block;
  }

  .section-rail {
    display: none;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .map-tabs,
  .filter-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .map-tab,
  .filter-chip {
    flex: 0 0 auto;
  }

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

  .care-grid article {
    min-height: 220px;
  }

  .accordion-list summary {
    grid-template-columns: 36px 1fr 20px;
    gap: 10px;
    min-height: 66px;
  }

  .detail-body {
    padding-left: 16px;
  }

  .button {
    width: 100%;
  }

  .feeling-grid,
  .path-builder {
    grid-template-columns: 1fr;
  }
}