/* ==========================================================
   The making of SCRAPHEAD — a sketchbook on graph paper.
   Builds on ../scraphead.css (nav, buttons, fonts, tokens).
   ========================================================== */

body.mo {
  --paper: #f4eedd;
  --paper-2: #fbf8ef;
  --graphite: #232833;
  --pen: #2f5ea8;
  --hand: 'Caveat', 'Segoe Print', cursive;
  background:
    linear-gradient(rgba(70, 110, 160, .12) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, rgba(70, 110, 160, .12) 1px, transparent 1px) 0 0 / 28px 28px,
    var(--paper);
  color: var(--graphite);
  cursor: auto;
}
body.mo a, body.mo button, body.mo input { cursor: pointer; }
body.mo ::selection { background: #ffd640; color: var(--graphite); }

.hand { font-family: var(--hand); font-weight: 700; }
.hand-kicker { color: var(--pen); font-size: 1.7rem; line-height: 1; margin: 0 0 6px; transform: rotate(-2deg); transform-origin: left; }
.hl { background: linear-gradient(transparent 56%, rgba(255, 210, 60, .8) 56% 90%, transparent 90%); padding: 0 .08em; }
.gold-word { color: var(--gold); white-space: nowrap; text-shadow: var(--outline), 0 .09em 0 var(--ink); }

/* ---------- Hero ---------- */
.mo-hero { padding: 140px 0 70px; }
.mo-hero-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; }
.mo-h1 {
  font-family: var(--display); font-weight: 400; margin: 0;
  font-size: clamp(2.8rem, 6.2vw, 5.2rem); line-height: 1;
}
.mo-lede { font-size: clamp(1.15rem, 1.8vw, 1.35rem); color: #3a404c; max-width: 30em; margin: 22px 0 16px; }
.mo-scroll { color: var(--pen); font-size: 1.6rem; margin: 0; animation: nudge 1.8s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateY(6px); } }

.compare-card {
  position: relative; margin: 0;
  padding: 18px 18px 10px;
  background: var(--paper-2);
  border: 3px solid var(--graphite); border-radius: 4px;
  box-shadow: 10px 10px 0 rgba(35, 40, 51, .16);
  transform: rotate(1.5deg);
}
.compare-card::before, .compare-card::after, .taped::before, .taped::after {
  content: ""; position: absolute; width: 110px; height: 30px; z-index: 3;
  background: rgba(236, 222, 170, .82); box-shadow: 0 1px 3px rgba(0, 0, 0, .12);
}
.compare-card::before, .taped::before { top: -14px; left: -26px; transform: rotate(-32deg); }
.compare-card::after, .taped::after { top: -14px; right: -26px; transform: rotate(30deg); }
.compare { position: relative; aspect-ratio: 1015 / 668; overflow: hidden; background: var(--paper-2); touch-action: pan-y; }
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.compare-sketch { position: absolute; inset: 0; background: var(--paper-2); clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.compare-sketch img { filter: url(#pencil); }
.compare-handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 4px; margin-left: -2px; background: var(--graphite); pointer-events: none; }
.compare-handle span {
  position: absolute; top: 50%; left: 50%; width: 46px; height: 46px; margin: -23px 0 0 -23px;
  display: grid; place-items: center;
  background: var(--gold); color: var(--ink); border: 4px solid var(--ink); border-radius: 50%;
  font-family: var(--display); font-size: 1.4rem; line-height: 1; letter-spacing: -.05em;
}
.compare input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.compare input:focus-visible + * { outline: none; }
.compare:has(input:focus-visible) { outline: 3px solid var(--pen); outline-offset: 4px; }
.compare-card figcaption { text-align: center; color: var(--pen); font-size: 1.5rem; margin-top: 6px; }

/* ---------- Story + trail ---------- */
.story { position: relative; max-width: 1140px; margin: 0 auto; padding: 20px 20px 40px 120px; }
.trail {
  position: absolute; left: 56px; top: 30px; bottom: 120px; width: 4px;
  background: repeating-linear-gradient(to bottom, rgba(35, 40, 51, .35) 0 12px, transparent 12px 24px);
}
.trail-robot {
  position: absolute; left: 50%; top: 0; width: 64px; max-width: none; height: auto;
  transform: translate(-50%, 0); transition: top .12s linear;
  filter: drop-shadow(0 6px 4px rgba(0, 0, 0, .18));
}
.trail-robot.walking { animation: waddle .25s ease-in-out infinite alternate; }

.chapter { position: relative; padding: 80px 0; }
.chapter + .chapter { border-top: 2px dashed rgba(35, 40, 51, .18); }
.chapter-num {
  position: absolute; left: -94px; top: 76px;
  width: 56px; height: 56px; display: grid; place-items: center;
  background: var(--paper); color: var(--graphite);
  border: 4px solid var(--graphite); border-radius: 50%;
  font-family: var(--display); font-size: 1.6rem;
}
.chapter h2 { font-family: var(--display); font-weight: 400; font-size: clamp(2.2rem, 4.6vw, 3.4rem); line-height: 1.05; margin: 0 0 .45em; color: #1c2029; }
.chapter p { font-size: 1.15rem; line-height: 1.7; color: #2d333e; margin: 0 0 1em; }
.chapter-copy { max-width: 36em; }
.chapter-copy.wide { max-width: 44em; }
.chapter-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.chapter-grid.flip .chapter-art { order: -1; }
.chapter-art { position: relative; }
.chapter-after { max-width: 44em; margin-top: 36px !important; }

.taped { position: relative; margin: 0; padding: 14px; background: var(--paper-2); border: 3px solid var(--graphite); box-shadow: 8px 8px 0 rgba(35, 40, 51, .14); }
.taped img { display: block; width: 100%; height: auto; }
.taped.small-sketch { width: min(320px, 80%); margin: 0 auto; transform: rotate(-3deg); }
.taped.photo { transform: rotate(-2deg); }
.taped figcaption { text-align: center; color: var(--pen); font-size: 1.4rem; margin-top: 6px; }
.sketch { filter: url(#pencil); }

.sticky {
  position: absolute; right: -4%; bottom: -10%; z-index: 4; width: 190px; margin: 0;
  padding: 18px 16px 20px;
  background: #ffe98a; color: #3a3320;
  font-family: var(--hand); font-weight: 700; font-size: 1.45rem; line-height: 1.15;
  box-shadow: 0 10px 18px rgba(0, 0, 0, .14);
  transform: rotate(5deg);
}
.sticky::before { content: ""; position: absolute; top: -10px; left: 50%; width: 70px; height: 22px; margin-left: -35px; background: rgba(236, 222, 170, .8); transform: rotate(-3deg); }
.sticky.pink { background: #ffc6d4; right: auto; bottom: auto; left: -7%; top: -12%; transform: rotate(-6deg); }

/* ---------- Inspirations ---------- */
.equation { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 34px; flex-wrap: wrap; }
.index-card {
  position: relative; width: 250px; min-height: 190px; padding: 18px 20px 16px;
  background:
    linear-gradient(#e8736b, #e8736b) 0 44px / 100% 2px no-repeat,
    repeating-linear-gradient(to bottom, transparent 0 26px, rgba(80, 130, 200, .28) 26px 27px) 0 46px / 100% calc(100% - 46px) no-repeat,
    #fffdf6;
  border: 2px solid rgba(35, 40, 51, .25); border-radius: 3px;
  box-shadow: 6px 8px 0 rgba(35, 40, 51, .12);
  transform: rotate(-2deg);
}
.index-card.tilt-r { transform: rotate(2.5deg); }
.index-card h3 { font-family: var(--display); font-weight: 400; font-size: 1.5rem; margin: 0 0 16px; line-height: 1; }
.index-card p { font-size: 1.02rem; line-height: 27px; margin: 0; }
.index-card.result { background: #26301f; color: var(--cream); border: 4px solid var(--ink); transform: rotate(-1deg); text-align: center; padding-top: 8px; }
.index-card.result img { width: 92px; height: auto; margin: -34px auto 0; display: block; }
.index-card.result h3 { color: var(--gold); text-shadow: var(--outline); font-size: 1.8rem; margin-bottom: 8px; }
.index-card.result p { color: var(--muted); line-height: 1.4; }
.eq-op { font-size: 3.4rem; color: var(--pen); line-height: 1; }

/* ---------- Sketch sheet ---------- */
.sheet {
  position: relative; margin-top: 40px; padding: 34px 34px 26px;
  background: var(--paper-2);
  border: 3px solid var(--graphite); border-radius: 4px;
  box-shadow: 12px 12px 0 rgba(35, 40, 51, .14);
  transform: rotate(-.6deg);
}
.sheet-row { position: relative; display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: center; gap: 10px 22px; padding: 16px 0 22px; }
.sheet-row + .sheet-row { border-top: 2px dashed rgba(35, 40, 51, .15); }
.sheet-row.row-robots figure { margin: 0; width: 30%; text-align: center; }
.sheet-row.row-robots img { display: block; width: 100%; height: auto; margin: -6% 0 -4%; }
.sheet-row figcaption { color: var(--pen); font-size: 1.45rem; line-height: 1.1; }
.row-label { flex-basis: 100%; margin: 0 0 4px; color: var(--pen); font-size: 1.7rem; transform: rotate(-1.5deg); }
.sheet-row.row-hats img { height: 74px; width: auto; }
.sheet-row.row-aliens img { height: 104px; width: auto; }
.sheet-row.row-gear img { height: 70px; width: auto; }
.sheet-row img { transition: transform .3s cubic-bezier(.3, 1.6, .5, 1); }
.sheet-row img:hover { transform: rotate(-6deg) scale(1.1); }
.note-arrow { position: absolute; right: 2%; bottom: 8%; margin: 0; color: #c0392b; font-size: 1.6rem; transform: rotate(-8deg); }

/* ---------- Loop diagram ---------- */
.loop { margin: 0; }
.loop svg { display: block; width: 100%; max-width: 440px; margin: 0 auto; }
.loop-labels text { font-family: var(--hand); font-weight: 700; font-size: 25px; fill: var(--pen); }
.loop-labels .loop-centre { font-size: 32px; fill: #c0392b; }

/* ---------- AI split ---------- */
.split { display: grid; grid-template-columns: 1.3fr 1fr; gap: 26px; margin-top: 30px; max-width: 900px; }
.split-card { position: relative; padding: 26px 28px 22px; border: 3px solid var(--graphite); border-radius: 6px; box-shadow: 8px 8px 0 rgba(35, 40, 51, .14); }
.split-card.me { background: #fffdf6; transform: rotate(-1deg); }
.split-card.ai { background: #e6eefb; transform: rotate(1.2deg); align-self: start; }
.split-card h3 { font-family: var(--display); font-weight: 400; font-size: 1.7rem; margin: 0 0 12px; }
.split-card ul { list-style: none; padding: 0; margin: 0; }
.split-card li { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: 1.12rem; border-bottom: 1px dashed rgba(35, 40, 51, .18); }
.split-card li:last-child { border-bottom: 0; }
.split-card li svg { width: 22px; height: 22px; flex: none; color: #2e9e5b; }
.split-card.ai li svg { color: var(--pen); }
.split-card .hand { color: var(--pen); font-size: 1.4rem; margin: 10px 0 0; }

/* ---------- Community ---------- */
.mo-cta { display: flex; flex-wrap: wrap; gap: 16px; margin: 30px 0 34px; }
.signoff { font-size: 2rem; line-height: 1.2; color: var(--pen); margin: 0; transform: rotate(-1.5deg); transform-origin: left; }
.signoff span { font-size: 1.6rem; color: #3a404c; }
.chapter.last { padding-bottom: 60px; }

.mo .foot { margin-top: 40px; }
.mo .foot-link { color: var(--gold); }

/* ---------- Responsive ---------- */
@media (max-width: 1060px) {
  .mo-hero-grid, .chapter-grid { grid-template-columns: 1fr; }
  .chapter-grid.flip .chapter-art { order: 0; }
  .compare-card { max-width: 640px; margin: 0 auto; }
  .chapter-art { max-width: 520px; margin: 20px auto 40px; width: 100%; }
}
@media (max-width: 760px) {
  .mo-hero { padding-top: 110px; }
  .story { padding: 10px 18px 30px 58px; }
  .trail { left: 24px; }
  .trail-robot { width: 44px; }
  .chapter { padding: 60px 0; }
  .chapter-num { left: -54px; top: 58px; width: 40px; height: 40px; font-size: 1.2rem; border-width: 3px; }
  .equation { flex-direction: column; }
  .index-card, .index-card.tilt-r { width: 100%; max-width: 300px; }
  .sheet { padding: 22px 14px 16px; }
  .sheet-row.row-robots figure { width: 46%; }
  .sheet-row.row-hats img { height: 52px; }
  .sheet-row.row-aliens img { height: 74px; }
  .sheet-row.row-gear img { height: 52px; }
  .note-arrow { position: static; flex-basis: 100%; text-align: center; }
  .split { grid-template-columns: 1fr; }
  .sticky { width: 160px; font-size: 1.25rem; right: -2%; bottom: -14%; }
  .sticky.pink { left: -2%; top: -16%; }
}