/* Judy's site. Watercolor paper, hand-inked lines, real marker color. */

:root {
  /* fills and tints (--blue-*, --red-2..4) are her real markers, see design/textures/palette-full.json;
     ink colors (--ink, --navy, --red, --red-dark, pencils) are her pens and stay dark for reading */
  --paper: #f9f9f7; /* average color of assets/paper/watercolor-paper.webp */
  --paper-2: #fdfdfb;
  --ink: #1c2b63;
  --ink-soft: #394a86;
  --navy: #1f3a8a;
  --blue: #519aff;
  --blue-2: #88c1ff;
  --blue-3: #a2dfff;
  --blue-4: #d5f2ff;
  --red: #c9382d;
  --red-dark: #a3261e;
  --red-2: #ff5662;
  --red-3: #ffb3b1;
  --red-4: #ffdae2;
  --cream: #fff3da;
  --pencil-blue: #27408b;
  --pencil-red: #c0392b;

  --display: "Special Elite", "American Typewriter", "Courier New", monospace;
  --body: "Courier Prime", "Courier New", Courier, monospace;

  /* hand-cut corners */
  --wob: 14px 9px 15px 10px / 10px 15px 9px 14px;
  --wob2: 10px 15px 9px 14px / 14px 9px 15px 10px;
  --max: 1120px;
  --gutter: clamp(24px, 7vw, 112px); /* open air at the screen edges */
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 24px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  background-color: var(--paper);
  /* seamless cold-press tile, made by design/tools/paper.py */
  background-image: url("../assets/paper/watercolor-paper.webp");
  background-size: 512px 512px;
}

[hidden] { display: none !important; }
img, svg { max-width: 100%; }
a { color: var(--red-dark); text-underline-offset: 3px; text-decoration-thickness: 2px; }
a:hover { color: var(--ink); }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; }
.skip:focus { top: 10px; }

:focus-visible { outline: 3px dashed var(--red-dark); outline-offset: 4px; border-radius: 6px; }

.wrap { width: min(var(--max), calc(100% - 2 * var(--gutter))); margin-inline: auto; position: relative; z-index: 1; }
main, .foot { position: relative; z-index: 1; }

h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.2; margin: 0; letter-spacing: 0; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.55rem); }
p { margin: 0 0 1em; }

/* highlights are real marker strokes, painted with her stroke engine (design/tools/marker_strokes.py).
   Only the middle of each image stretches, so the slanted end caps keep their shape. */
.hl, .email { position: relative; isolation: isolate; padding: 0 0.14em; margin: 0 0.02em; background: none; }
.hl::before, .hl::after, .email::before {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
  border-style: solid;
  border-color: transparent;
  mix-blend-mode: multiply;
}
.hl::before { left: -0.3em; right: -0.3em; top: 0.06em; bottom: -0.06em; border-width: 0 0.7em; border-image: url("../assets/marker/hl-blue-1.webp") 0 120 fill / 0 0.7em / 0 stretch; transform: rotate(-1.1deg); }
.hl::after { left: -0.2em; right: -0.1em; top: 0.4em; bottom: -0.12em; border-width: 0 0.6em; border-image: url("../assets/marker/hl-blue-2.webp") 0 120 fill / 0 0.6em / 0 stretch; transform: rotate(0.7deg); opacity: 0.55; }
.hl-red::before { border-image-source: url("../assets/marker/hl-red-1.webp"); }
.hl-red::after { border-image-source: url("../assets/marker/hl-red-2.webp"); opacity: 0.5; }

.eyebrow { font: 800 0.8rem/1 var(--body); text-transform: uppercase; letter-spacing: 0.14em; color: var(--red-dark); margin: 0 0 14px; }

/* ---------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5ch;
  padding: 0.7em 1.3em;
  font: 800 1rem/1.2 var(--body);
  color: var(--ink);
  background: var(--paper-2);
  border: 2.5px solid var(--pencil-blue);
  border-radius: var(--wob);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  min-height: 44px;
}
.btn:hover { transform: translate(0, -2px) rotate(-1deg); color: var(--ink); }
.btn:active { transform: translate(0, 1px); }
.btn.red { background: var(--red-2); color: var(--ink); border-color: var(--ink); }
.btn.red:hover { color: var(--ink); }
.btn.ghost { background: transparent; }
.btn.small { padding: 0.45em 1em; font-size: 0.9rem; min-height: 40px; }
.btn.big { font-size: 1.15rem; padding: 0.85em 1.6em; }
.btn:disabled { opacity: 0.55; cursor: default; transform: none; }
.cta-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin: 26px 0; align-items: center; }
.cta-row.center { justify-content: center; }

/* ------------------------------------------------------------ cards */
.card { text-align: center; position: relative; isolation: isolate; padding: clamp(20px, 3.2vw, 34px); }
/* cards are flat: no offset shadow */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(rgba(255, 255, 253, 0.6), rgba(255, 255, 253, 0.6)), url("../assets/paper/watercolor-paper.webp") 0 0 / 512px 512px;
  border-radius: 3px;
}
/* the card border: her real pen strokes (design/tools/pen_frames.py), four strokes that cross at the corners */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border: 14px solid transparent;
  border-image: url("../assets/pen/card-1.svg") 48 / 14px / 0 stretch;
}
.card:nth-of-type(2)::before { border-image-source: url("../assets/pen/card-2.svg"); }
.card:nth-of-type(3)::before { border-image-source: url("../assets/pen/card-3.svg"); }

/* --------------------------------------------------------------- hero */
.sec { padding: clamp(48px, 8vw, 104px) 0; }
.hero { padding-top: clamp(72px, 11vw, 140px); }
.hero-copy { max-width: 46rem; margin-inline: auto; text-align: center; }
.hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.1rem); line-height: 1.08; margin-bottom: 22px; }
.lede { margin-inline: auto; font-size: clamp(1.15rem, 2vw, 1.35rem); max-width: 34em; color: var(--ink); }
.wave { display: inline-block; animation: nod 3s ease-in-out infinite; transform-origin: left bottom; }
@keyframes nod { 0%, 100% { transform: rotate(-2deg); } 50% { transform: rotate(2deg) translateY(-2px); } }

.notes { list-style: none; padding: 0; margin: clamp(140px, 14vw, 180px) auto 0; max-width: 940px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(150px, 14vw, 180px) clamp(20px, 3vw, 36px); text-align: left; }
/* specimen labels: typed catalog tags with a punched hole and a loop of red string */
.note {
  position: relative;
  max-width: none;
  padding: 20px 8px 6px;
  font: 400 0.98rem/1.5 var(--body);
  color: var(--ink);
  background: linear-gradient(rgba(255, 255, 253, 0.72), rgba(255, 255, 253, 0.72)), url("../assets/paper/watercolor-paper.webp") 0 0 / 512px 512px;
  border: 12px solid transparent;
  border-image: url("../assets/pen/card-3.svg") 48 / 12px / 0 stretch;
  border-radius: 3px;
  transition: transform 0.2s;
}
.note::before { /* the punched hole */
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  width: 11px;
  height: 11px;
  margin-left: -5.5px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--pencil-blue);
}
.note::after { /* red string looped through the hole */
  content: "";
  position: absolute;
  top: -26px;
  left: 50%;
  width: 30px;
  height: 40px;
  margin-left: -15px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 40'%3E%3Cpath d='M13 36 C13 24 6 19 7 11 C8 4 12 2 15 2 C18 2 22 4 23 11 C24 19 17 24 17 36' fill='none' stroke='%23c0392b' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
  pointer-events: none;
}
.spec-no {
  display: block;
  margin-bottom: 8px;
  font: 700 0.72rem/1 var(--body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red-dark);
}
.spec-no::after { /* a short stroke of marker under the number */
  content: "";
  display: block;
  width: 44px;
  height: 7px;
  margin-top: 6px;
  border-radius: 3px;
  background: var(--tone, var(--blue-3));
  opacity: 0.9;
}
.note.tone-blue { --tone: var(--blue-3); }
.note.tone-red { --tone: var(--red-3); }
.note.tone-cream { --tone: #ffe08a; }
.note.n1 { transform: rotate(-0.8deg); }
.note.n2 { transform: rotate(0.6deg); border-image-source: url("../assets/pen/card-1.svg"); }
.note.n3 { transform: rotate(-0.4deg); border-image-source: url("../assets/pen/card-2.svg"); }
.note:hover { transform: rotate(0) translateY(-2px); }

.blob { cursor: grab; }
.blob:active { cursor: grabbing; }
.blob-label { font-family: var(--body); font-weight: 800; fill: var(--ink); user-select: none; -webkit-user-select: none; }
@keyframes pop { from { transform: scale(0.3) rotate(-8deg); opacity: 0; } to { transform: scale(1) rotate(0); opacity: 1; } }

/* ----------------------------------------------------- section heads */
.sec-head { text-align: center; margin-bottom: clamp(130px, 14vw, 180px); }
.sec-head h2 { font-size: clamp(1.8rem, 4.2vw, 2.6rem); line-height: 1.15; }
.squiggle { display: block; width: 170px; height: auto; margin: 6px auto 8px; clip-path: inset(0 100% 0 0); transition: clip-path 0.9s ease 0.25s; }
.in .squiggle, .reduced .squiggle { clip-path: inset(0 0 0 0); }
.sec-blurb { font-size: 1.1rem; max-width: 36em; color: var(--ink-soft); margin: 10px auto 0; }

/* -------------------------------------------------------------- projects */
.proj-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(150px, 14vw, 190px) clamp(28px, 4vw, 48px); max-width: 960px; margin-inline: auto; }
.proj { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.proj.featured { grid-column: 1 / -1; display: block; }
.label { font: 800 0.75rem/1 var(--body); text-transform: uppercase; letter-spacing: 0.12em; color: var(--red-dark); margin: 0 0 10px; }
.proj h3 { margin-bottom: 10px; font-size: clamp(1.45rem, 3vw, 1.85rem); }
.tags, .chips { list-style: none; padding: 0; margin: 14px 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.tags li, .chips li {
  padding: 3px 12px;
  font: 800 0.82rem/1.5 var(--body);
  color: var(--ink);
  background: var(--blue-4);
  border: 2px solid var(--pencil-blue);
  border-radius: var(--wob);
}
.tags li:nth-child(even) { background: var(--red-4); border-color: var(--pencil-red); }
.chips li { font-size: 1rem; padding: 4px 14px; }
.chips li:nth-child(even) { background: var(--red-4); border-color: var(--pencil-red); }
.links { margin: 18px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.proj-art { display: grid; place-items: center; min-width: 0; margin-top: auto; }
.proj.featured .proj-art { margin-top: 26px; }
.proj.featured .playground { max-width: 700px; margin-inline: auto; }
.proj.featured .proj-text { max-width: 40rem; margin-inline: auto; }
.proj-bird { width: min(240px, 70%); transition: transform 0.3s; }
.proj-bird:hover { transform: rotate(-4deg) scale(1.04); }
.proj.is-soon::after { border-style: dashed; }
.b-magnifier { transform-box: fill-box; transform-origin: 20% 80%; }
.proj-bird:hover .b-magnifier { animation: wiggle 0.7s ease-in-out; }
@keyframes wiggle { 25% { transform: rotate(-10deg); } 55% { transform: rotate(8deg); } 80% { transform: rotate(-4deg); } }

@media (max-width: 860px) {
  .proj-grid { grid-template-columns: 1fr; }
}

/* playground */
.playground { position: relative; width: 100%; }
.pg-svg {
  display: block;
  width: 100%;
  height: clamp(320px, 52vw, 400px);
  background:
    radial-gradient(circle, rgba(39, 64, 139, 0.22) 1.2px, transparent 1.6px) 0 0 / 22px 22px,
    linear-gradient(rgba(255, 255, 253, 0.4), rgba(255, 255, 253, 0.4)),
    url("../assets/paper/watercolor-paper.webp") 0 0 / 512px 512px;
  border: 2.5px dashed var(--pencil-blue);
  border-radius: var(--wob2);
  overflow: hidden;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.is-dragging .pg-svg { cursor: grabbing; }
.pg-controls { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.pg-hint { display: flex; align-items: center; gap: 8px; margin: 10px 0 0; font: 600 0.95rem/1.3 var(--body); color: var(--red-dark); }
.arrow-doodle { width: 54px; height: 36px; flex: none; transform: scaleY(-1) rotate(-12deg); }
.arrow-doodle path, .hint-arrow path { stroke-dasharray: 1; }
.pg-svg .blob:focus-visible { outline: none; }
.pg-svg .blob:focus-visible path:first-child { stroke: var(--red-dark); stroke-width: 5; stroke-opacity: 1; stroke-dasharray: 7 5; }

/* -------------------------------------------------------------- art */
.stickers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 40px) clamp(10px, 2.4vw, 32px);
}
.sticker {
  position: relative;
  width: 100%;
  display: block;
  padding: 6px 4px 8px;
  font: inherit;
  color: var(--ink);
  background: none;
  border: 0;
  cursor: pointer;
  text-align: center;
  transition: transform 0.25s cubic-bezier(0.3, 1.6, 0.5, 1);
}
.stickers li:nth-child(3n+1) .sticker { transform: rotate(-3deg); }
.stickers li:nth-child(3n+2) .sticker { transform: rotate(2deg); }
.stickers li:nth-child(3n) .sticker { transform: rotate(-1.2deg); }
.sticker:hover { transform: rotate(0) scale(1.07) translateY(-6px) !important; }
.sticker-art { display: block; width: min(100%, 230px); margin: 0 auto; }
.sticker-art svg, .sticker-art img { display: block; width: 100%; height: auto; filter: url(#diecut); overflow: visible; }
.sticker-name { display: block; margin-top: 10px; font: 400 clamp(1.3rem, 2.6vw, 1.7rem)/1.05 var(--display); }
.chirp {
  position: absolute;
  top: 0;
  right: 8%;
  padding: 3px 12px;
  font: 400 1.25rem/1.2 var(--display);
  background: var(--paper-2);
  border: 2.5px solid var(--pencil-red);
  border-radius: var(--wob);
  opacity: 0;
  pointer-events: none;
  transform: scale(0.4);
}
.sticker.hop { animation: hop 0.6s cubic-bezier(0.3, 1.4, 0.5, 1); }
.sticker.hop .chirp { animation: chirp 1.3s ease-out; }
@keyframes hop { 30% { translate: 0 -16px; rotate: 5deg; } 60% { translate: 0 0; rotate: -4deg; } 80% { translate: 0 -5px; rotate: 2deg; } }
@keyframes chirp { 0% { opacity: 0; transform: scale(0.4); } 20%, 70% { opacity: 1; transform: scale(1) rotate(4deg); } 100% { opacity: 0; transform: scale(1) translateY(-14px); } }
@media (max-width: 640px) { .stickers { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ----------------------------------------------------------- tutoring */
.tutor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(150px, 14vw, 190px) clamp(28px, 4vw, 48px); max-width: 960px; margin: 0 auto clamp(150px, 14vw, 190px); }
.tutor-grid h3 { margin-bottom: 10px; }
.checks { list-style: none; padding: 0; margin: 14px auto 0; display: grid; gap: 10px; width: fit-content; max-width: 100%; text-align: left; }
.checks li { position: relative; padding-left: 34px; }
.checks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.3em;
  width: 20px;
  height: 12px;
  border-left: 4px solid var(--red-dark);
  border-bottom: 4px solid var(--red-dark);
  transform: rotate(-48deg) skew(6deg);
  border-radius: 2px;
}
@media (max-width: 860px) { .tutor-grid { grid-template-columns: 1fr; } }

.quiz-card { max-width: 780px; margin: 0 auto 56px; }
.quiz-blurb { color: var(--ink-soft); margin: 8px 0 18px; }
.quiz-top { display: flex; justify-content: space-between; font: 800 0.85rem/1 var(--body); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); margin-bottom: 14px; }
.quiz-problem { font-size: 1.2rem; font-weight: 800; margin-bottom: 14px; }
.tag { display: inline-block; margin-right: 8px; padding: 1px 10px; font: 800 0.72rem/1.6 var(--body); text-transform: uppercase; letter-spacing: 0.08em; color: #fff7ea; background: var(--navy); border-radius: var(--wob); vertical-align: 2px; }
.quiz-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.step {
  display: flex;
  gap: 12px;
  align-items: baseline;
  width: 100%;
  padding: 12px 16px;
  text-align: left;
  font: 600 1.05rem/1.45 var(--body);
  color: var(--ink);
  background: var(--paper);
  border: 2.5px solid var(--pencil-blue);
  border-radius: var(--wob);
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}
.step:hover:not(:disabled) { background: var(--blue-4); transform: translateX(4px) rotate(-0.4deg); }
.step-num { flex: none; font: 600 1.25rem/1.2 var(--display); color: var(--red-dark); }
.step:disabled { cursor: default; color: var(--ink); opacity: 1; }
.step { position: relative; isolation: isolate; }
.step.is-bug { border-color: var(--pencil-red); background: transparent; }
.step.is-bug::before {
  content: "";
  position: absolute;
  inset: -6px -12px;
  z-index: -1;
  pointer-events: none;
  border-style: solid;
  border-color: transparent;
  border-width: 0 1em;
  border-image: url("../assets/marker/hl-red-1.webp") 0 120 fill / 0 1em / 0 stretch;
  mix-blend-mode: multiply;
  transform: rotate(-0.7deg);
  animation: hl-sweep 0.6s ease-out;
}
@keyframes hl-sweep { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
.step.is-bug::after { content: "mistake"; margin-left: auto; padding: 0 10px; font: 800 0.75rem/1.8 var(--body); text-transform: uppercase; letter-spacing: 0.08em; color: #fff7ea; background: var(--navy); border-radius: var(--wob); align-self: center; }
.step.is-wrong { text-decoration: line-through; text-decoration-color: var(--pencil-red); text-decoration-thickness: 2px; }
.quiz-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.quiz-feedback { margin: 16px 0 0; min-height: 3.2em; font-size: 1.05rem; }
.quiz-done { text-align: center; padding: 8px 0; }
.quiz-big { font: 600 clamp(2.6rem, 8vw, 4rem)/1 var(--display); color: var(--red-dark); margin-bottom: 8px; }

/* ------------------------------------------------------------- about */
.about-grid { display: grid; grid-template-columns: 1fr; justify-items: center; gap: clamp(150px, 14vw, 190px); }
.about-copy { text-align: center; max-width: 40rem; }
.about-copy p { font-size: 1.15rem; margin-inline: auto; }
.contact { width: min(100%, 520px); }
.looking { padding: 14px 20px; background: var(--cream); border: 2px solid var(--red-3); border-radius: var(--wob); font-weight: 600; }
.contact h3 { margin-bottom: 12px; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.contact-list a {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2px 12px;
  padding: 9px 14px;
  min-height: 44px;
  align-items: center;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  background: var(--paper);
  border: 2px solid var(--pencil-blue);
  border-radius: var(--wob);
  transition: transform 0.15s, background 0.15s;
}
.contact-list li:nth-child(even) a { border-color: var(--pencil-red); }
.contact-list a:hover { background: var(--blue-4); transform: translateX(5px) rotate(-0.6deg); }
.c-text { font-weight: 600; color: var(--ink-soft); overflow-wrap: anywhere; }

/* ------------------------------------------------------------ footer */
.foot { padding: 48px 0 clamp(72px, 12vw, 128px); text-align: center; font: 600 0.95rem/1.5 var(--body); color: var(--ink-soft); }
.foot p { margin: 0 0 6px; }
.foot-small { font-size: 0.9rem; }


/* ------------------------------------------------------------- reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.3, 1); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------------------------------------------------------- dev helper */
.show-todo [data-placeholder] { outline: 3px dashed #d6a200; outline-offset: 3px; }

.noscript { padding: 40px 20px; max-width: 40em; margin: auto; }

/* ------------------------------------------------------ reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
  .squiggle { clip-path: none; }
}

/* ------------------------------------------------------- little birds */
.sec { position: relative; }
.flock { position: absolute; inset: 0; pointer-events: none; z-index: 0; --k: 1; }
.lb {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: calc(var(--w) * var(--k, 1));
  display: block;
  pointer-events: auto;
  transform: translateY(0) scaleX(var(--f, 1)) rotate(var(--r, 0deg));
  transition: transform 0.4s cubic-bezier(0.3, 1.5, 0.5, 1);
}
.lb:hover { transform: translateY(-7px) scaleX(var(--f, 1)) rotate(var(--r, 0deg)); }
.lb-inner { position: relative; display: block; width: 100%; height: 100%; }
.lb-inner img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; user-select: none; -webkit-user-select: none; pointer-events: none; }
/* the marker forms are ink: their edges ooze (SVG filter), they drift and breathe,
   and their colors slowly shift hue (each layer on its own clock) */
.lb-fills { position: absolute; inset: 0; display: block; }
.lb-layer { position: absolute; inset: 0; display: block; }
.lb-fill { animation: lb-drift 19s ease-in-out infinite alternate, lb-hue 27s ease-in-out infinite; animation-delay: calc(var(--d, 0s) * -1), calc(var(--d, 0s) * -1.7); }
.lb-fill-1 { animation-duration: 23s, 33s; animation-direction: alternate-reverse, normal; }
.lb-fill-2 { animation-duration: 29s, 21s; }
@keyframes lb-drift {
  from { transform: translate(-6%, -4.5%) rotate(-3deg) scale(0.92); }
  to { transform: translate(6%, 4.5%) rotate(3deg) scale(1.12); }
}
@keyframes lb-hue {
  0%, 100% { filter: hue-rotate(-26deg) saturate(1.05); }
  50% { filter: hue-rotate(26deg) saturate(1.2); }
}
@media (max-width: 700px) {
  .flock { --k: 0.7; }
  .lb-nomobile { display: none; }
}

/* birds standing on the top edge of a card or note */
.flock-edge { position: absolute; left: 0; right: 0; top: 0; height: 0; z-index: 4; pointer-events: none; --k: 1; }
.flock-edge .lb { top: auto; bottom: -3px; }
/* a row of birds along the bottom of the page */
.flock-row { display: flex; justify-content: center; align-items: flex-end; flex-wrap: wrap; gap: 6px clamp(12px, 3vw, 40px); margin: 0 0 18px; --k: 1; }
.flock-row .lb { position: relative; left: auto; top: auto; }
@media (max-width: 700px) {
  .flock-edge { --k: 0.72; }
  .flock-row { --k: 0.8; }
}

@media (max-width: 760px) {
  .notes { grid-template-columns: 1fr; max-width: 380px; }
}

/* floating and draggable birds */
body { position: relative; }
#sky { position: absolute; left: 0; top: 0; width: 100%; height: 100%; overflow: clip; pointer-events: none; z-index: 50; --k: 1; }
.lb { cursor: grab; touch-action: none; }
.lb-sky { left: 0 !important; top: 0 !important; bottom: auto !important; transition: none !important; will-change: transform; }
.lb-held { cursor: grabbing; filter: drop-shadow(0 7px 5px rgba(28, 43, 99, 0.22)); }
@media (max-width: 700px) { #sky { --k: 0.7; } }

/* ------------------------------------------------------------ typewriter */
/* typed text: letters are in the page already and switch on one at a time */
.js .ch:not(.on) { opacity: 0; }
.ch.cur::after {
  content: "";
  display: inline-block;
  width: 0.55ch;
  height: 1.05em;
  margin-left: 1px;
  vertical-align: -0.14em;
  background: var(--red-dark);
  animation: caret 1s steps(1) infinite;
}
@keyframes caret { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }
/* a little ink, like a ribbon pressing through the paper */
body { text-shadow: 0 0 0.6px rgba(28, 43, 99, 0.45); }
.btn, .sticker-name, .quiz-big { text-shadow: none; }
@media (prefers-reduced-motion: reduce) { .ch.cur::after { animation: none; } }

/* tutoring as plain centered text, no boxes */
.tutor-plain { display: grid; gap: clamp(44px, 6vw, 68px); max-width: 44rem; margin: 0 auto clamp(40px, 6vw, 64px); text-align: center; }
.plain h3 { margin-bottom: 12px; }
.plain p { margin-inline: auto; }
.quiz-card { margin-top: 0; }

/* GitHub list inside a project card */
.gh { width: 100%; text-align: left; }
.gh-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.gh-loading { padding: 12px 4px; text-align: center; color: var(--ink-soft); }
.gh-item {
  display: grid;
  gap: 3px;
  padding: 10px 14px;
  color: var(--ink);
  text-decoration: none;
  background: var(--paper);
  border: 2px solid var(--pencil-blue);
  border-radius: var(--wob);
  transition: transform 0.15s, background 0.15s;
}
.gh-list li:nth-child(even) .gh-item { border-color: var(--pencil-red); }
.gh-item:hover { background: var(--blue-4); transform: translateX(5px) rotate(-0.4deg); color: var(--ink); }
.gh-name { font: 700 1rem/1.3 var(--body); overflow-wrap: anywhere; }
.gh-name::before { content: "> "; color: var(--red-dark); }
.gh-desc { font-size: 0.92rem; line-height: 1.45; }
.gh-meta { font-size: 0.78rem; letter-spacing: 0.04em; color: var(--ink-soft); text-transform: uppercase; }
.proj .proj-art:has(.gh) { margin-top: 6px; width: 100%; }

/* Spot the Bug scene: her TPT page style (cream grid page, Gaegu + Courier Prime, red = bug, blue = fix) */
.scene-wrap { width: min(440px, 100%); margin-inline: auto; }
.tpt {
  --tpt-red: #c8362e;
  --tpt-blue: #2c3e9e;
  --tpt-graphite: #3a3d52;
  position: relative;
  container-type: inline-size;
  aspect-ratio: 4 / 3.5;
  width: 100%;
  background-color: #f9f6ee;
  background-image:
    linear-gradient(rgba(60, 100, 200, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 100, 200, 0.12) 1px, transparent 1px);
  background-size: 5.2cqw 5.2cqw;
  background-size: 22px 22px;
  border: 1.5px solid rgba(44, 62, 158, 0.3);
  border-radius: 3px;
  text-align: left;
  overflow: hidden;
  text-shadow: none;
}
.tpt > * { position: absolute; margin: 0; }
.tpt img { display: block; height: auto; }
.tpt-tape { left: 36%; top: -3.5%; width: 28%; transform: rotate(-2deg); }
.tpt-kicker { left: 6%; top: 9%; font: 700 2.9cqw/1 "Courier Prime", monospace; letter-spacing: 0.16em; color: var(--tpt-red); }
.tpt-kicker span { opacity: 0.6; }
.tpt-chase { aspect-ratio: 4 / 2.75; }
.tpt-chase > svg { inset: 0; width: 100%; height: 100%; overflow: hidden; }
.tpt-caption { left: 6%; bottom: 6%; font: 400 2.9cqw/1 "Courier Prime", monospace; color: var(--tpt-graphite); }

.proj .proj-art { width: 100%; }

/* the email address is plain text: no mail app needed, one click selects it for copying */
.email { font-weight: 700; user-select: all; -webkit-user-select: all; cursor: text; overflow-wrap: anywhere; }
.email::before { left: -0.15em; right: -0.15em; top: 0.5em; bottom: -0.02em; border-width: 0 0.5em; border-image: url("../assets/marker/hl-blue-2.webp") 0 120 fill / 0 0.5em / 0 stretch; transform: rotate(-0.6deg); }
.email-line { margin: 4px 0 0; font-size: 1.05rem; }
.tutor-cta { max-width: 34rem; margin: 0 auto; text-align: center; font-size: 1.1rem; }
.contact-list .contact-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 12px; padding: 9px 14px; min-height: 44px; align-items: center; background: var(--paper); border: 2px solid var(--pencil-blue); border-radius: var(--wob); font-weight: 800; }
.contact-list .contact-row .email { padding: 0; font-weight: 600; color: var(--ink-soft); user-select: all; }
.contact-list .contact-row .email::before { display: none; }

.copy {
  margin-left: 6px;
  padding: 2px 9px;
  font: 700 0.7rem/1.5 var(--body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  vertical-align: 2px;
  color: var(--ink);
  background: var(--paper-2);
  border: 1.5px solid var(--pencil-blue);
  border-radius: var(--wob);
  cursor: pointer;
  text-shadow: none;
  transition: background 0.15s, transform 0.15s;
}
.copy:hover { background: var(--blue-4); }
.copy:active { transform: translateY(1px); }
.copy.done { background: var(--red-4); border-color: var(--pencil-red); }
.c-right { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 4px 6px; }

/* the tutoring menu: a typed menu with dotted leaders */
.menu { max-width: 36rem; margin: 0 auto clamp(40px, 6vw, 64px); padding: 22px clamp(10px, 3vw, 24px) 18px; border-top: 4px double var(--ink); border-bottom: 4px double var(--ink); text-align: left; }
.menu-title { margin: 0 0 14px; text-align: center; font: 700 0.8rem/1 var(--body); letter-spacing: 0.4em; color: var(--red-dark); }
.menu-row { display: flex; align-items: baseline; gap: 6px; margin: 0; padding: 7px 0; font-size: 1.1rem; line-height: 1.35; }
.m-lead { flex: 1 1 24px; min-width: 24px; border-bottom: 2px dotted var(--ink); transform: translateY(-4px); opacity: 0.7; }
.m-ans { flex: none; font-weight: 700; color: var(--pencil-blue); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.95rem; }
.menu-row.no .m-ans { color: var(--red-dark); }
.menu-note { margin: -4px 0 4px 1.2ch; font-size: 0.88rem; font-style: italic; color: var(--ink-soft); }
.menu-row.no .m-item { font-style: italic; }

/* About: a typed classified ad, then the birds line; no header */
.about-sec { padding-top: clamp(48px, 7vw, 90px); }
.classified { max-width: 34rem; margin: 0 auto 28px !important; padding: 20px clamp(12px, 3vw, 26px); border-top: 4px double var(--ink); border-bottom: 4px double var(--ink); text-align: center; font-size: 1.15rem; line-height: 1.6; }
.classified b { display: block; margin-bottom: 6px; color: var(--red-dark); letter-spacing: 0.32em; font-size: 0.85rem; }