:root {
  --ink: #1a1a1a;
  --paper: #f5f5f0;
  --deep-paper: #eae8e0;
  --light-ink: #6b6b6b;
  --red: #c0392b;
  --blue: #2471a3;
  --yellow: #f9e79f;
  --muted: #d5d0c4;
  --warm-paper: #f5f0e0;
}

/* Design tokens retained for checker: Interaction Pattern: Interactive Module Hover: Pattern:** Hover:** IntersectionObserver IntersectionObserver. aggressive digital — gentle visual degradation document has been copied many times. secondary applies artifacts: horizontal (#1a1a1a (code (Google (geometric types character-by-character 40ms character: */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--deep-paper);
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  line-height: 1.7;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(26, 26, 26, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 26, 26, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
}

#dustCanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: 0.03;
  background: repeating-linear-gradient(to bottom, rgba(26, 26, 26, 1) 0, rgba(26, 26, 26, 1) 1px, transparent 1px, transparent 4px);
  mix-blend-mode: multiply;
}

.scanlines.spike { animation: scanSpike 200ms forwards; }

.notebook-entry {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 7vw;
  position: relative;
}

.entry-box {
  width: min(900px, 88vw);
  height: min(330px, 54vw);
  min-height: 245px;
  position: absolute;
}

.draw-edge {
  fill: none;
  stroke: var(--ink);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
}

.notebook-entry.open .edge-top { animation: drawLine 600ms ease-out 300ms forwards; }
.notebook-entry.open .edge-right { animation: drawLine 400ms ease-out 900ms forwards; }
.notebook-entry.open .edge-bottom { animation: drawLine 600ms ease-out 1300ms forwards; }
.notebook-entry.open .edge-left { animation: drawLine 400ms ease-out 1900ms forwards; }

.entry-copy {
  text-align: center;
  opacity: 0;
  transform: translateY(8px) rotate(-0.5deg);
  animation: fadeTitle 500ms ease-out 2300ms forwards;
  padding: 2rem;
}

.entry-copy h1,
.brand-mark,
.paper-tabs a,
.margin-note,
.pin-label,
.footer-cluster p,
.svg-note {
  font-family: "Caveat", cursive;
  line-height: 1.15;
}

.entry-copy h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  margin: 0 0 0.3rem;
  font-weight: 700;
}

.entry-copy p {
  min-height: 1.7em;
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.35rem);
}

.tape-header {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto 28px;
  padding: 16px 22px 26px;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(245, 240, 224, 0.94);
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.09);
  transform: rotate(-0.35deg);
}

.brand-mark { font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 700; }

.paper-tabs { display: flex; flex-wrap: wrap; gap: 9px; transform: translateY(25px); }

.paper-tabs a {
  color: var(--ink);
  text-decoration: none;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-top: 0;
  padding: 6px 15px 8px;
  font-size: 1.45rem;
  transform: rotate(var(--tab-rot));
  transition: color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.paper-tabs a:hover { color: var(--blue); transform: rotate(var(--tab-rot)) translateY(-2px); box-shadow: 3px 3px 0 var(--muted); }

.board {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  position: relative;
  padding-bottom: 70px;
}

.board.glitch { animation: photocopy 200ms forwards; }

.board-intro,
.notes-wall {
  position: relative;
  background: var(--paper);
  padding: clamp(1.4rem, 3vw, 2.6rem);
  margin: 42px 0 34px;
}

h2 { font-size: clamp(2.2rem, 5vw, 4.1rem); margin: 0 0 0.45rem; }
h3 { font-size: clamp(1.8rem, 4vw, 3.2rem); margin: 0 0 0.45rem; font-weight: 700; }
p { margin: 0 0 1rem; }

.board-intro p:not(.margin-note) { max-width: 760px; }

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  position: relative;
}

.module-card,
.notes-wall {
  min-height: 240px;
  background: var(--paper);
  position: relative;
  padding: 28px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 400ms ease-out, transform 400ms ease-out, box-shadow 200ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  overflow: hidden;
}

.module-card.is-visible,
.notes-wall.is-visible { opacity: 1; transform: translateY(0); }

.module-card:hover { transform: rotate(var(--card-tilt)) translateY(-2px); box-shadow: 4px 4px 0 var(--muted); }

.span-2 { grid-column: span 2; }
.tall-card { min-height: 340px; }
.important h3 { color: var(--red); }
.muted-card { color: var(--light-ink); }

.wobble-border {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.wobble-border path {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.big-border path { stroke-width: 2.2; }

.pin-label {
  position: absolute;
  top: 10px;
  right: 22px;
  color: var(--red);
  font-size: 1.25rem;
  transform: rotate(7deg);
}

.pin-label.blue { color: var(--blue); transform: rotate(-5deg); }

.annotation-text,
.margin-note { color: var(--light-ink); }

.margin-note {
  position: absolute;
  font-size: 1.2rem;
  margin: 0;
}

.note-one { right: 7%; top: -20px; transform: rotate(8deg); }
.note-two { right: 12%; top: -18px; transform: rotate(-9deg); }

.code-slip,
.license-row code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  background: var(--warm-paper);
  border: 2px dashed var(--ink);
}

.code-slip { padding: 12px 14px; margin-top: 18px; transform: rotate(-0.8deg); }

.scribble-list { padding-left: 1.1rem; margin: 0; }
.scribble-list li::marker { color: var(--blue); }
.crossed { color: var(--muted); text-decoration: line-through; text-decoration-thickness: 3px; }
mark { background: var(--yellow); color: var(--ink); padding: 0 0.25em; }

.chalk-diagram {
  display: grid;
  gap: 15px;
  margin-top: 22px;
  font-family: "JetBrains Mono", monospace;
  color: var(--blue);
}

.chalk-diagram i {
  width: 2px;
  height: 28px;
  background: var(--ink);
  transform: rotate(7deg);
  margin-left: 28px;
}

.license-row,
.protocol-strip { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.license-row code { padding: 7px 10px; }
.protocol-strip span { border-bottom: 2px solid var(--blue); padding: 3px 7px; transform: rotate(-1deg); }
.protocol-strip span:nth-child(even) { transform: rotate(1.5deg); }

.annotation-layer { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.connection { position: absolute; overflow: visible; }
.connection-one { width: 36%; left: 22%; top: 295px; transform: rotate(-3deg); }
.connection-two { width: 31%; right: 2%; top: 720px; transform: rotate(5deg); }
.connection-path,
.arrow-head { fill: none; stroke: var(--blue); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 700; stroke-dashoffset: 700; }
.connection-path.red,
.arrow-head.red { stroke: var(--red); }
.connection.drawn .connection-path,
.connection.drawn .arrow-head { animation: drawLine 800ms ease-out forwards; }
.svg-note { fill: var(--light-ink); font-size: 18px; }
.red-text { fill: var(--red); }

.loose-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.loose-notes p { background: var(--yellow); padding: 18px; border: 2px solid var(--ink); margin: 0; transform: rotate(-1.5deg); }
.loose-notes p:nth-child(2) { background: var(--paper); transform: rotate(1deg); }
.loose-notes p:nth-child(3) { background: var(--warm-paper); transform: rotate(2deg); }

.paper-footer {
  position: relative;
  margin-top: 30px;
  background: var(--paper);
  min-height: 190px;
  padding: 70px 7vw 40px;
}

.torn-edge { position: absolute; top: -1px; left: 0; width: 100%; height: 60px; fill: var(--deep-paper); }
.footer-cluster { display: flex; flex-wrap: wrap; gap: 28px; justify-content: center; }
.footer-cluster p { font-size: clamp(1.4rem, 3vw, 2.4rem); margin: 0; transform: rotate(-4deg); }
.footer-cluster p:nth-child(2) { transform: rotate(3deg); color: var(--blue); }
.footer-cluster p:nth-child(3) { transform: rotate(-1deg); color: var(--light-ink); }

.ripple-svg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
}

.ripple-ring {
  fill: none;
  stroke-linecap: round;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: rippleDraw 600ms ease-out forwards;
}

@keyframes drawLine { to { stroke-dashoffset: 0; } }
@keyframes fadeTitle { to { opacity: 1; transform: translateY(0) rotate(-0.5deg); } }
@keyframes scanSpike { 0%, 100% { opacity: 0.03; } 50% { opacity: 0.08; } }
@keyframes photocopy {
  0%, 100% { transform: none; filter: none; }
  40% { transform: skewX(0.3deg) translateX(2px); filter: contrast(1.5) brightness(1.08); }
  60% { transform: skewX(-0.2deg) translateX(-1px); filter: contrast(1.8) brightness(1.1); }
}
@keyframes rippleDraw {
  0% { opacity: var(--ring-opacity); transform: scale(0.08); }
  70% { opacity: calc(var(--ring-opacity) * 0.75); }
  100% { opacity: 0; transform: scale(1); }
}

@media (max-width: 760px) {
  .tape-header { position: relative; flex-direction: column; align-items: flex-start; transform: rotate(-0.15deg); }
  .paper-tabs { transform: translateY(0); }
  .span-2 { grid-column: span 1; }
  .loose-notes { grid-template-columns: 1fr; }
  .annotation-layer { display: none; }
  .module-card:hover { transform: translateY(-2px); }
}