:root {
  /* IBM Plex Mono: use sparingly for typewriter-effect lines. */
  --cream: #F4E8D0;
  --teak: #8A5A2B;
  --sienna: #C46A3A;
  --brass: #D39B3D;
  --olive: #5E6B3A;
  --walnut: #2A2118;
  --shadow: rgba(42, 33, 24, 0.22);
  --paper: rgba(244, 232, 208, 0.82);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--walnut);
  font-family: "Literata", Georgia, serif;
  overflow-x: hidden;
}

.paper-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: 0.42;
  background:
    radial-gradient(circle at 20% 30%, rgba(138, 90, 43, 0.08) 0 1px, transparent 1px 8px),
    radial-gradient(circle at 70% 65%, rgba(94, 107, 58, 0.08) 0 1px, transparent 1px 10px),
    linear-gradient(105deg, rgba(255,255,255,0.16), transparent 35%, rgba(138,90,43,0.08));
  mix-blend-mode: multiply;
}

.index-strip {
  position: fixed;
  top: 8vh;
  right: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.index-tab {
  color: var(--walnut);
  text-decoration: none;
  background: rgba(211, 155, 61, 0.76);
  border: 1px solid rgba(138, 90, 43, 0.55);
  border-right: 0;
  border-radius: 16px 0 0 16px;
  padding: 0.65rem 0.75rem 0.65rem 1rem;
  box-shadow: -6px 8px 18px rgba(42, 33, 24, 0.13);
  transform: translateX(2.2rem);
  transition: transform 420ms ease, background 420ms ease;
}

.index-tab span { display: block; font-weight: 600; }
.index-tab.active, .index-tab:hover { transform: translateX(0); background: var(--sienna); color: var(--cream); }

.desk-spread {
  min-height: 100vh;
  position: relative;
  isolation: isolate;
  padding: clamp(2rem, 5vw, 5rem);
  border-bottom: 1px solid rgba(138, 90, 43, 0.22);
  background:
    linear-gradient(90deg, rgba(138,90,43,0.08) 0 1px, transparent 1px 8.333%),
    radial-gradient(ellipse at 82% 18%, rgba(211, 155, 61, 0.18), transparent 34%),
    radial-gradient(ellipse at 15% 82%, rgba(94, 107, 58, 0.14), transparent 36%),
    var(--cream);
}

.spread-grid {
  min-height: calc(100vh - clamp(4rem, 10vw, 10rem));
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(8, minmax(3.5rem, 1fr));
  position: relative;
}

.scene-question {
  grid-column: 1 / 5;
  grid-row: 1;
  align-self: start;
  font-family: "IBM Plex Mono", monospace;
  color: var(--teak);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: clamp(0.7rem, 1vw, 0.86rem);
}

h1, h2 {
  font-family: "Commissioner", system-ui, sans-serif;
  letter-spacing: -0.045em;
  line-height: 0.88;
  margin: 0;
  color: var(--walnut);
}

h2 {
  grid-column: 1 / 7;
  grid-row: 2 / 4;
  font-size: clamp(3.4rem, 8vw, 8.4rem);
  font-weight: 800;
  max-width: 8ch;
}

.nameplate {
  grid-column: 1 / 7;
  grid-row: 2 / 4;
  align-self: center;
  background: linear-gradient(135deg, #8A5A2B, #2A2118 70%);
  color: var(--cream);
  border-radius: 28px;
  padding: clamp(1.4rem, 3vw, 2.5rem);
  box-shadow: 0 28px 60px var(--shadow), inset 0 0 0 1px rgba(244,232,208,0.28);
  transform: rotate(-1.4deg);
}

.plate-kicker, .mono-label, .stamp {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.nameplate h1 {
  color: var(--cream);
  font-size: clamp(3.2rem, 9vw, 9.5rem);
  font-weight: 800;
  text-shadow: 0 2px 0 rgba(211,155,61,0.24);
}

.typed-line {
  grid-column: 2 / 8;
  grid-row: 5;
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(0.96rem, 1.45vw, 1.35rem);
  color: var(--walnut);
  align-self: center;
}

.typed-line i {
  display: inline-block;
  width: 0.55em;
  height: 1.1em;
  margin-left: 0.12em;
  vertical-align: -0.15em;
  background: var(--sienna);
  animation: blink 860ms steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }
@keyframes jitter { 0%,100% { transform: translate(0); } 35% { transform: translate(0.6px, -0.4px); } 70% { transform: translate(-0.4px, 0.5px); } }

.typing span { animation: jitter 120ms steps(2) infinite; display: inline-block; }

.thought-curve {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: visible;
}

.thought-curve path {
  fill: none;
  stroke: var(--olive);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: var(--path-length, 1800);
  stroke-dashoffset: var(--path-length, 1800);
  filter: drop-shadow(0 9px 0 rgba(138,90,43,0.08));
  transition: stroke-dashoffset 1600ms cubic-bezier(.2,.8,.2,1), stroke-width 800ms ease;
}

.desk-spread.in-view .thought-curve path { stroke-dashoffset: 0; }
.desk-spread.in-view .thickening path { stroke-width: 7; }
.hero-curve path, .final-curve path { stroke: var(--olive); }

.top-right, .upper-right, .system-map, .principle-stack, .final-network {
  grid-column: 8 / 13;
  grid-row: 1 / 4;
  align-self: center;
  justify-self: end;
}

.icon-band {
  display: flex;
  gap: clamp(0.65rem, 1.3vw, 1.1rem);
  flex-wrap: wrap;
  max-width: 24rem;
}

.mini-icon {
  width: 4.1rem;
  height: 4.1rem;
  display: inline-grid;
  place-items: center;
  border: 2px solid var(--teak);
  border-radius: 22px;
  background: rgba(244,232,208,0.72);
  box-shadow: 0 12px 24px rgba(42,33,24,0.12);
  position: relative;
  opacity: 0;
  transform: rotate(-8deg) scale(0.82);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(.2,1.25,.4,1);
}

.desk-spread.in-view .mini-icon { opacity: 1; transform: rotate(var(--r, -1deg)) scale(1); }
.mini-icon:nth-child(2) { --r: 4deg; transition-delay: 140ms; }
.mini-icon:nth-child(3) { --r: -3deg; transition-delay: 280ms; }
.mini-icon:nth-child(4) { --r: 5deg; transition-delay: 420ms; }
.mini-icon:nth-child(5) { --r: -5deg; transition-delay: 560ms; }

.mini-icon::before, .mini-icon::after { content: ""; position: absolute; }
.mini-icon::after { width: 0.7rem; height: 0.7rem; border-radius: 50%; background: var(--brass); right: 0.45rem; bottom: 0.45rem; }
.compass::before { width: 2rem; height: 2rem; border: 2px solid var(--olive); border-radius: 50%; background: linear-gradient(45deg, transparent 45%, var(--teak) 46% 54%, transparent 55%); }
.archive::before { width: 2.2rem; height: 1.55rem; border: 2px solid var(--teak); border-top-width: 0.55rem; box-shadow: 0 0.7rem 0 -0.45rem var(--teak); }
.nib::before { width: 1.45rem; height: 2.25rem; background: var(--teak); clip-path: polygon(50% 0, 100% 42%, 62% 100%, 38% 100%, 0 42%); }
.scale::before { width: 2.4rem; height: 1.8rem; border-top: 2px solid var(--teak); border-left: 2px solid transparent; background: linear-gradient(90deg, transparent 47%, var(--teak) 48% 52%, transparent 53%); }
.switch::before { width: 2.4rem; height: 1.25rem; border: 2px solid var(--teak); border-radius: 999px; background: radial-gradient(circle at 70% 50%, var(--sienna) 0 0.45rem, transparent 0.48rem); }
.graph::before { width: 2.4rem; height: 2.1rem; background: radial-gradient(circle at 15% 80%, var(--teak) 0 .22rem, transparent .24rem), radial-gradient(circle at 52% 30%, var(--teak) 0 .22rem, transparent .24rem), radial-gradient(circle at 86% 62%, var(--teak) 0 .22rem, transparent .24rem), linear-gradient(35deg, transparent 47%, var(--olive) 48% 52%, transparent 53%); }
.hourglass::before { width: 1.7rem; height: 2.25rem; border: 2px solid var(--teak); clip-path: polygon(0 0, 100% 0, 60% 50%, 100% 100%, 0 100%, 40% 50%); }
.globe::before { width: 2.2rem; height: 2.2rem; border: 2px solid var(--olive); border-radius: 50%; background: linear-gradient(90deg, transparent 44%, var(--olive) 45% 55%, transparent 56%), linear-gradient(0deg, transparent 44%, var(--olive) 45% 55%, transparent 56%); }
.terminal::before { width: 2.35rem; height: 1.65rem; border: 2px solid var(--teak); border-radius: 4px; background: linear-gradient(45deg, transparent 0 42%, var(--sienna) 43% 49%, transparent 50%); }
.speech::before { width: 2.2rem; height: 1.55rem; border: 2px solid var(--teak); border-radius: 50%; clip-path: polygon(0 0,100% 0,100% 82%,60% 82%,42% 100%,45% 82%,0 82%); }
.map::before { width: 2.35rem; height: 1.85rem; border: 2px solid var(--teak); transform: skewY(-8deg); background: linear-gradient(90deg, transparent 31%, var(--olive) 32% 35%, transparent 36% 64%, var(--olive) 65% 68%, transparent 69%); }
.knight::before { width: 2rem; height: 2.45rem; background: var(--teak); clip-path: polygon(42% 0, 78% 12%, 88% 38%, 65% 32%, 78% 64%, 95% 100%, 10% 100%, 22% 74%, 12% 48%, 30% 24%); }

.lower-right {
  grid-column: 7 / 13;
  grid-row: 6 / 9;
  align-self: end;
  justify-self: end;
}

.signature-note, .comparison-note, .perforated-note, .typed-card, .annotation-panel {
  background: rgba(244,232,208,0.74);
  border: 1px solid rgba(138,90,43,0.36);
  border-radius: 28px;
  padding: clamp(1.2rem, 2.5vw, 2rem);
  box-shadow: 0 24px 50px rgba(42,33,24,0.12);
  backdrop-filter: blur(3px);
  max-width: 33rem;
}

.signature-note strong { display: block; font-family: "Commissioner"; font-size: clamp(1.6rem, 3vw, 3rem); line-height: 1; margin-top: 0.8rem; }
.stamp { color: var(--olive); }
.stamp.sienna { color: var(--sienna); }

.annotation-panel p, .comparison-note p, .perforated-note p {
  font-size: clamp(1.1rem, 1.5vw, 1.45rem);
  line-height: 1.55;
  margin: 0.7rem 0 0;
}

.acetate { background: rgba(244,232,208,0.56); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.38), 0 30px 60px rgba(42,33,24,0.1); }
.evidence-row { grid-column: 3 / 9; grid-row: 4 / 6; display: flex; gap: 1rem; align-items: center; transform: rotate(-5deg); }
.evidence-row figure { margin: 0; text-align: center; font-family: "IBM Plex Mono", monospace; color: var(--teak); font-size: 0.72rem; text-transform: uppercase; }
.typed-card { margin: 0; min-width: min(34rem, 90vw); }
.typed-card .typed-line, .final-type { grid-column: auto; grid-row: auto; margin: 0; }

.system-map {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  max-width: 28rem;
}

.map-token {
  font-family: "IBM Plex Mono", monospace;
  border: 2px solid var(--olive);
  color: var(--walnut);
  border-radius: 999px;
  padding: 0.72rem 1rem;
  background: rgba(211,155,61,0.2);
  box-shadow: 0 10px 0 rgba(138,90,43,0.08);
  opacity: 0;
  transform: translateY(1rem) rotate(-4deg);
  transition: opacity 520ms ease, transform 520ms ease;
}

.desk-spread.in-view .map-token { opacity: 1; transform: translateY(0) rotate(0); }
.map-token:nth-child(2) { transition-delay: 120ms; }
.map-token:nth-child(3) { transition-delay: 240ms; }
.map-token:nth-child(4) { transition-delay: 360ms; }
.map-token:nth-child(5) { transition-delay: 480ms; }
.bottom-left { grid-column: 1 / 6; grid-row: 6 / 8; align-self: center; }

.principle-stack { display: grid; gap: 0.8rem; min-width: min(32rem, 82vw); }
.principle-stack div {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(138,90,43,0.1);
  border-left: 0.55rem solid var(--brass);
  border-radius: 18px;
  padding: 1rem 1.2rem;
  box-shadow: 0 12px 24px rgba(42,33,24,0.08);
  transform: translateX(2rem);
  opacity: 0;
  transition: transform 640ms ease, opacity 640ms ease;
}
.desk-spread.in-view .principle-stack div { transform: translateX(0); opacity: 1; }
.principle-stack div:nth-child(2) { transition-delay: 150ms; }
.principle-stack div:nth-child(3) { transition-delay: 300ms; }
.principle-stack b { font-family: "IBM Plex Mono", monospace; color: var(--sienna); }
.principle-stack span { font-family: "Commissioner"; font-weight: 700; font-size: 1.2rem; }
.perforated-note { border-left: 8px dotted var(--teak); }

.final-network {
  position: relative;
  width: min(34rem, 80vw);
  min-height: 18rem;
}
.final-network .mini-icon { position: absolute; }
.final-network .mini-icon:nth-child(1) { left: 8%; top: 8%; }
.final-network .mini-icon:nth-child(2) { left: 58%; top: 2%; }
.final-network .mini-icon:nth-child(3) { left: 76%; top: 42%; }
.final-network .mini-icon:nth-child(4) { left: 34%; top: 52%; }
.final-network .mini-icon:nth-child(5) { left: 4%; top: 66%; }

.personal-seal {
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 3px solid var(--sienna);
  border-radius: 999px;
  padding: 1rem 1.35rem;
  background: rgba(244,232,208,0.82);
  transform: rotate(-4deg);
}
.personal-seal span { font-family: "Commissioner"; font-weight: 800; color: var(--sienna); font-size: 3rem; line-height: 1; }
.personal-seal small { font-family: "IBM Plex Mono", monospace; text-transform: uppercase; color: var(--teak); }
.final-type { grid-column: 1 / 6; grid-row: 7; align-self: end; }

@media (max-width: 820px) {
  .index-strip { top: auto; bottom: 1rem; right: 0; }
  .index-tab { padding: 0.5rem 0.6rem; transform: translateX(2.9rem); }
  .desk-spread { padding: 1.35rem; }
  .spread-grid { display: flex; min-height: calc(100vh - 2.7rem); flex-direction: column; gap: 1.35rem; justify-content: center; }
  h2 { font-size: clamp(3rem, 17vw, 5.8rem); }
  .nameplate { transform: rotate(-0.5deg); }
  .top-right, .upper-right, .system-map, .principle-stack, .final-network, .lower-right, .bottom-left, .typed-line { grid-column: auto; grid-row: auto; align-self: auto; justify-self: auto; }
  .thought-curve { opacity: 0.55; }
  .evidence-row { transform: none; flex-wrap: wrap; }
  .mini-icon { width: 3.4rem; height: 3.4rem; }
  .final-network { min-height: 14rem; }
}