/* Ramps & Bumpers (K-PS2-2). Shared look with K-PS2-1; lab-specific rules are at the end. */
:root {
  --soft: #2f9df4; --med: #f5a623; --hard: #8e5cf7;
  --ink: #1f2b3a; --good: #2fbf71; --good-dark: #1f8f53; --ui: #2a4a6b;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; overflow: hidden; background: #13202e; color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  -webkit-user-select: none; user-select: none; touch-action: manipulation;
}
button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
button:focus-visible { outline: 5px solid #ffcc33; outline-offset: 4px; }

#stage {
  position: fixed; left: 50%; top: 50%; width: 1280px; height: 720px; overflow: hidden;
  transform: translate(-50%, -50%); transform-origin: 50% 50%; background: #b8d4e8;
}

/* ------------------------------------------------------------ scenes */
.scene { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s, visibility .45s; }
.scene.show { opacity: 1; visibility: visible; }
.bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.bg-side { background-image: url(../assets/img/bg_side.jpg), linear-gradient(#c9e0ef 0 42%, #d9ad73 42%); }
.bg-top { background-image: url(../assets/img/bg_top.jpg), linear-gradient(#d8ad74, #cf9f62); }

.spr { position: absolute; left: 0; top: 0; background-repeat: no-repeat; pointer-events: none; }
.spr.missing { background: rgba(255, 255, 255, .55); border-radius: 12px; }

.ball { position: absolute; left: 0; top: 0; will-change: transform; z-index: 5; }
.ball canvas { position: relative; display: block; transition: transform .09s ease-out; transform-origin: 50% 100%; }
#top-ball canvas { transform-origin: 50% 50%; }
#side-ball .shadow {
  position: absolute; left: -16%; width: 132%; height: 22px; bottom: -9px;
  background: radial-gradient(closest-side, rgba(60, 30, 0, .5), rgba(60, 30, 0, 0));
}
#top-ball .shadow {
  position: absolute; left: 7px; top: 11px; width: 100%; height: 100%; border-radius: 50%;
  background: rgba(60, 30, 0, .34); filter: blur(6px);
}

#startline {
  position: absolute; width: 14px; height: 46px; border-radius: 3px; transform: skewX(-38deg);
  background: linear-gradient(90deg, #1b6fd1, #4aa3ff); box-shadow: 0 1px 0 rgba(0, 0, 0, .15); opacity: .92;
}
#side-props .hand { z-index: 6; }
.spr.tap { pointer-events: auto; cursor: pointer; }
#tap-ring {
  position: absolute; width: 150px; height: 150px; margin: -75px 0 0 -75px; border-radius: 50%;
  border: 7px solid #ffcc33; opacity: 0; pointer-events: none; z-index: 7;
}
#tap-ring.show { animation: ring 1.3s ease-out infinite; }
@keyframes ring { 0% { transform: scale(.55); opacity: 1; } 100% { transform: scale(1.25); opacity: 0; } }

/* stop flags: pennants on poles, one per push */
.flag { position: absolute; width: 0; height: 0; z-index: 3; transition: transform .45s cubic-bezier(.3, 1.6, .5, 1), opacity .3s; transform: translateY(-50px); opacity: 0; }
.flag.in { transform: none; opacity: 1; }
.flag i { position: absolute; display: block; }
.flag .base { left: -13px; bottom: -6px; width: 26px; height: 11px; border-radius: 50%; background: rgba(40, 20, 0, .3); }
.flag .pole { left: -3px; bottom: 0; width: 6px; height: 108px; border-radius: 3px; background: linear-gradient(90deg, #8f98a2, #f6f7f9 45%, #848d97); }
.flag .pen {
  left: 3px; bottom: 62px; width: 72px; height: 46px; background: var(--c);
  clip-path: polygon(0 0, 100% 50%, 0 100%); transform-origin: 0 50%;
}
.flag .pen b { position: absolute; left: 8px; top: 50%; transform: translateY(-50%); display: flex; gap: 3px; }
.flag .pen s { display: block; width: 7px; height: 20px; border-radius: 3px; background: rgba(255, 255, 255, .9); transform: skewX(-18deg); }
.flag.soft { --c: var(--soft); } .flag.med { --c: var(--med); } .flag.hard { --c: var(--hard); }
.flag.glow .pen { animation: wave .5s ease-in-out 6 alternate; }
@keyframes wave { to { transform: scaleX(.8) skewY(8deg); } }

.block { will-change: transform; z-index: 4; }

/* top view */
#top-hands .thand { z-index: 8; transition: opacity .3s; }
#top-hands .thand.off { opacity: 0; pointer-events: none; }
#top-hands .thand.tap { pointer-events: auto; cursor: pointer; animation: handglow 1.4s ease-in-out infinite; }
@keyframes handglow { 50% { filter: drop-shadow(0 0 12px rgba(255, 214, 51, 1)); } }
#star-wrap .star { transition: transform .45s cubic-bezier(.3, 1.6, .5, 1), opacity .3s; transform: scale(.3); opacity: 0; z-index: 2; }
#star-wrap .star.show { transform: none; opacity: 1; }
#star-wrap .star.hit { animation: hop .45s ease-in-out 3; }
@keyframes hop { 50% { transform: scale(1.18) rotate(12deg); } }

/* ------------------------------------------------------------ top bar */
#hud { position: absolute; left: 0; right: 0; top: 0; height: 72px; display: flex; align-items: center; gap: 10px; padding: 0 16px; z-index: 80; }
.hbtn {
  width: 54px; height: 54px; border: 0; border-radius: 50%; padding: 0; display: grid; place-items: center;
  background: rgba(255, 255, 255, .95); box-shadow: 0 3px 0 rgba(0, 0, 0, .18);
}
.hbtn svg { width: 28px; height: 28px; fill: var(--ui); }
.hbtn.grown { width: auto; border-radius: 27px; padding: 0 18px; font-weight: 800; font-size: 16px; color: var(--ui); }
#b-sound .off, #b-sound.muted .on { display: none; }
#b-sound.muted .off { display: block; }
#steps { flex: 1; display: flex; justify-content: center; gap: 12px; }
#steps i { width: 20px; height: 20px; border-radius: 50%; background: rgba(255, 255, 255, .45); border: 3px solid #fff; box-shadow: 0 2px 3px rgba(0, 0, 0, .2); transition: .3s; }
#steps i.done { background: var(--good); }
#steps i.now { background: #ffcc33; transform: scale(1.35); }

/* ------------------------------------------------------------ narration caption */
#caption {
  position: absolute; left: 50%; top: 84px; transform: translateX(-50%); width: max-content; max-width: 880px;
  min-height: 62px; padding: 14px 26px 14px 70px; border-radius: 24px; background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2); font-size: 26px; line-height: 1.3; font-weight: 700;
  z-index: 75; opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s;
}
#caption.show { opacity: 1; visibility: visible; }
#stage.no-cap #caption { opacity: 0; visibility: hidden; } /* the end card already says it */
#caption p { margin: 0; }
#caption .spk { position: absolute; left: 24px; top: 50%; transform: translateY(-50%); display: flex; gap: 4px; align-items: center; height: 28px; }
#caption .spk i { display: block; width: 6px; height: 10px; border-radius: 3px; background: #ffb020; }
#caption.talking .spk i { animation: eq .7s ease-in-out infinite; }
#caption.talking .spk i:nth-child(2) { animation-delay: .15s; }
#caption.talking .spk i:nth-child(3) { animation-delay: .3s; }
@keyframes eq { 50% { height: 28px; } }
#stage.cap-side #caption { left: 22px; top: 86px; transform: none; max-width: 340px; font-size: 22px; padding-left: 62px; }

/* ------------------------------------------------------------ push buttons + tally */
#pushpad {
  position: absolute; left: 36px; top: 196px; display: flex; gap: 28px; z-index: 50;
  opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .3s, visibility .3s, transform .3s;
}
#pushpad.show { opacity: 1; visibility: visible; transform: none; }
.pbtn {
  position: relative; width: 132px; height: 132px; padding: 0; border-radius: 50%; border: 6px solid #fff;
  background: radial-gradient(circle at 35% 28%, rgba(255, 255, 255, .38), transparent 55%), var(--c);
  box-shadow: 0 7px 0 rgba(0, 0, 0, .22), 0 12px 24px rgba(0, 0, 0, .18); transition: transform .12s, filter .2s;
}
.pbtn:active { transform: translateY(4px) scale(.97); }
.pbtn.soft { --c: var(--soft); } .pbtn.med { --c: var(--med); } .pbtn.hard { --c: var(--hard); }
.pbtn .ico { left: 50%; top: 50%; transform: translate(-38%, -50%); }
.pbtn .lines { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 6px; }
.pbtn .lines i { display: block; width: 20px; height: 6px; border-radius: 3px; background: rgba(255, 255, 255, .95); }
.pbtn .lbl {
  position: absolute; left: 50%; bottom: -42px; transform: translateX(-50%); white-space: nowrap;
  font-weight: 800; font-size: 23px; color: #fff; text-shadow: 0 2px 4px rgba(0, 0, 0, .6);
}
.pbtn.tried::after {
  content: "✓"; position: absolute; right: -8px; top: -8px; width: 40px; height: 40px; border-radius: 50%;
  border: 4px solid #fff; background: var(--good); color: #fff; font-weight: 900; font-size: 22px; line-height: 32px;
}
#pushpad.busy .pbtn { filter: saturate(.45) brightness(.92); }
#pushpad.answer .pbtn { animation: pulse 1.5s ease-in-out infinite; }
#pushpad.answer .pbtn.med { animation-delay: .2s; } #pushpad.answer .pbtn.hard { animation-delay: .4s; }
.pbtn.wrong { animation: shake .4s !important; }
.pbtn.right { box-shadow: 0 0 0 10px rgba(47, 191, 113, .75), 0 7px 0 rgba(0, 0, 0, .22); }
@keyframes pulse { 50% { transform: scale(1.06); } }
@keyframes shake { 25% { transform: translateX(-10px); } 75% { transform: translateX(10px); } }

#tally {
  position: absolute; right: 26px; top: 196px; width: 420px; padding: 12px 18px; border-radius: 22px;
  background: rgba(255, 255, 255, .93); box-shadow: 0 8px 20px rgba(0, 0, 0, .16); z-index: 50;
  opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
}
#tally.show { opacity: 1; visibility: visible; }
.trow { display: flex; align-items: center; gap: 12px; height: 44px; }
.trow .tl { width: 92px; font-weight: 800; font-size: 20px; color: var(--c); }
.trow.soft { --c: var(--soft); } .trow.med { --c: var(--med); } .trow.hard { --c: var(--hard); }
.trow .track { position: relative; flex: 1; height: 10px; border-radius: 5px; background: #eadfcc; }
.trow .tick { position: absolute; bottom: 3px; width: 0; height: 0; transform: translateX(-50%); border: 7px solid transparent; border-bottom: 16px solid #ff7a1a; border-top: 0; }
.trow .dot {
  position: absolute; top: 50%; width: 24px; height: 24px; border-radius: 50%; background: var(--c);
  border: 3px solid #fff; transform: translate(-50%, -50%); box-shadow: 0 2px 4px rgba(0, 0, 0, .3);
}
.trow.todo .tl { opacity: .45; }

#next {
  position: absolute; right: 28px; bottom: 28px; width: 104px; height: 104px; padding: 0; border-radius: 50%;
  border: 6px solid #fff; background: var(--good); box-shadow: 0 7px 0 var(--good-dark), 0 12px 24px rgba(0, 0, 0, .2);
  display: grid; place-items: center; z-index: 65; opacity: 0; visibility: hidden; transform: scale(.5);
  transition: opacity .3s, visibility .3s, transform .35s cubic-bezier(.3, 1.6, .5, 1);
}
#next.show { opacity: 1; visibility: visible; transform: none; animation: nudge 1.6s ease-in-out .8s infinite; }
#next svg { width: 62px; height: 62px; fill: #fff; }
@keyframes nudge { 50% { transform: translateX(6px) scale(1.04); } }

/* ------------------------------------------------------------ panels */
.panel {
  position: absolute; inset: 0; z-index: 70; display: grid; place-items: center;
  background: rgba(15, 30, 45, .38); backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s;
}
.panel.show { opacity: 1; visibility: visible; }
.card { background: #fffdf7; border-radius: 32px; box-shadow: 0 20px 50px rgba(0, 0, 0, .3); padding: 36px 48px; text-align: center; max-width: 900px; }
.title-card h1 { font-size: 88px; margin: 4px 0 10px; color: #e23c3c; letter-spacing: 1px; text-shadow: 0 5px 0 #ffd23f; line-height: 1; }
.kicker { margin: 0; font-weight: 800; color: #2a7bd4; text-transform: uppercase; letter-spacing: 2px; }
.sub { margin: 0 0 26px; font-size: 24px; }
.big-btn {
  width: 144px; height: 144px; padding: 0; border-radius: 50%; border: 8px solid #fff; background: var(--good);
  box-shadow: 0 8px 0 var(--good-dark), 0 14px 30px rgba(0, 0, 0, .25); display: inline-grid; place-items: center;
  animation: pulse 1.6s ease-in-out infinite;
}
.big-btn svg { width: 84px; height: 84px; fill: #fff; margin-left: 10px; }

#p-guess { background: rgba(15, 30, 45, .22); backdrop-filter: none; padding-top: 120px; }
.guess-row { display: flex; gap: 70px; }
.guess {
  position: relative; width: 360px; height: 300px; padding: 0; border-radius: 32px; border: 8px solid #fff; background: #fffdf7;
  box-shadow: 0 10px 0 rgba(0, 0, 0, .18), 0 20px 40px rgba(0, 0, 0, .25); transition: transform .2s, opacity .3s, border-color .2s;
}
.guess:hover { transform: translateY(-5px); }
.guess.picked { border-color: #ffcc33; transform: scale(1.06); }
.guess.dim { opacity: .4; transform: scale(.93); }
.g-art { position: absolute; left: 0; right: 0; top: 24px; height: 190px; }
.g-art .lines { position: absolute; display: flex; flex-direction: column; gap: 7px; }
.g-art .lines i { display: block; width: 26px; height: 7px; border-radius: 4px; background: var(--c); opacity: .8; }
.g-art .arrow { position: absolute; height: 10px; border-radius: 5px; background: var(--c); }
.g-art .arrow::after { content: ""; position: absolute; right: -16px; top: -9px; border: 14px solid transparent; border-left: 18px solid var(--c); border-right: 0; }
.g-art canvas { position: absolute; }
.g-art.soft { --c: var(--soft); } .g-art.hard { --c: var(--hard); }
.g-lbl { position: absolute; left: 0; right: 0; bottom: 22px; font-size: 36px; font-weight: 900; }
.guess[data-guess="soft"] .g-lbl { color: var(--soft); }
.guess[data-guess="hard"] .g-lbl { color: var(--hard); }

.done-card { position: relative; margin-top: 70px; padding-top: 104px; max-width: 1000px; }
.badge { position: absolute; left: 50%; top: -78px; transform: translateX(-50%); width: 150px; height: 170px; }
.medal {
  position: relative; z-index: 2; width: 140px; height: 140px; margin: 0 auto; border-radius: 50%; border: 6px solid #fff;
  background: radial-gradient(circle at 35% 30%, #fff7c7, #ffcc33 45%, #dc9c00); box-shadow: 0 8px 20px rgba(0, 0, 0, .25);
  display: grid; place-items: center; font-weight: 900; font-size: 22px; line-height: 1.05; color: #7a4b00;
  animation: pop-in .8s cubic-bezier(.3, 1.5, .5, 1);
}
.rib { position: absolute; top: 110px; width: 36px; height: 64px; z-index: 1; clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 80%, 0 100%); }
.rib.l { left: 34px; transform: rotate(16deg); background: var(--hard); }
.rib.r { right: 34px; transform: rotate(-16deg); background: var(--soft); }
@keyframes pop-in { from { transform: scale(0) rotate(-120deg); } }
.done-card h2 { margin: 0 0 14px; font-size: 38px; color: var(--ui); }
.ideas { display: flex; gap: 26px; margin-bottom: 26px; }
.idea { flex: 1; background: #fff; border-radius: 24px; padding: 18px 20px; box-shadow: inset 0 0 0 3px #f0e6d2; }
.idea p { margin: 10px 0 0; font-size: 25px; line-height: 1.3; }
.idea-art { position: relative; height: 128px; }
.idea-art.strength i { position: absolute; left: 30px; height: 12px; border-radius: 6px; }
.idea-art.strength i::after { content: ""; position: absolute; right: -18px; top: -10px; border: 16px solid transparent; border-left: 20px solid currentColor; border-right: 0; }
.idea-art.strength .a1 { top: 34px; width: 90px; background: var(--soft); color: var(--soft); }
.idea-art.strength .a2 { top: 82px; width: 330px; background: var(--hard); color: var(--hard); }
.idea-art.way::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 46px; height: 46px; margin: -23px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ff8a8a, #d42a2a 55%, #8c1515);
}
.idea-art.way i { position: absolute; left: 50%; top: 50%; width: 70px; height: 10px; margin-top: -5px; border-radius: 5px; background: var(--med); transform-origin: 0 50%; }
.idea-art.way i::after { content: ""; position: absolute; right: -14px; top: -8px; border: 13px solid transparent; border-left: 16px solid var(--med); border-right: 0; }
.idea-art.way i:nth-child(1) { transform: rotate(0deg) translateX(34px); }
.idea-art.way i:nth-child(2) { transform: rotate(90deg) translateX(30px); width: 16px; }
.idea-art.way i:nth-child(3) { transform: rotate(180deg) translateX(34px); }
.idea-art.way i:nth-child(4) { transform: rotate(270deg) translateX(30px); width: 16px; }
.pill { border: 0; border-radius: 32px; padding: 16px 30px; margin: 0 8px; font-size: 22px; font-weight: 800; color: #fff; background: var(--good); box-shadow: 0 5px 0 var(--good-dark); }
.pill.ghost { color: var(--ui); background: #fff; box-shadow: 0 5px 0 #c9d3dd, inset 0 0 0 3px #c9d3dd; }

#p-parents { z-index: 90; }
.parents-card { position: relative; max-width: 860px; text-align: left; font-size: 19px; line-height: 1.45; padding: 30px 40px; }
.parents-card h2 { margin: 0 0 10px; color: var(--ui); }
.parents-card p { margin: 0 0 12px; }
.parents-card .fine { font-size: 13px; color: #5b6b7b; margin-top: 18px; }
.parents-card .x { position: absolute; right: 16px; top: 12px; width: 46px; height: 46px; border: 0; border-radius: 50%; background: #eef2f6; font-size: 30px; line-height: 1; }

/* ------------------------------------------------------------ print: the lab record only */
#print-sheet { display: none; }
@media print {
  html, body { background: #fff; overflow: visible; height: auto; }
  #stage { display: none; }
  #print-sheet { display: block; color: #000; font-family: Georgia, "Times New Roman", serif; font-size: 14pt; padding: 10mm; }
  #print-sheet h1 { font-size: 24pt; margin: 0 0 4pt; }
  #print-sheet h2 { font-size: 15pt; margin: 16pt 0 4pt; }
  #print-sheet .meta { color: #444; margin: 0 0 14pt; }
  #print-sheet table { border-collapse: collapse; min-width: 60%; }
  #print-sheet td, #print-sheet th { border: 1px solid #888; padding: 5pt 10pt; text-align: left; }
  #print-sheet .fine { font-size: 8pt; color: #555; margin-top: 24pt; }
}

/* ============================================================ K-PS2-2 additions */
#side-ball .shadow { transform-origin: 50% -31px; } /* rotates about the ball's center to sit on the ramp */
.ball.tap { cursor: pointer; }
#ramp .rblock, #ramp .plank { z-index: 4; will-change: transform; }
#spot-wrap .spot { z-index: 2; transform: scaleY(.42); transform-origin: 50% 50%; transition: filter .3s; }
#spot-wrap .spot.glow { animation: spotglow .5s ease-in-out 6 alternate; }
@keyframes spotglow { to { filter: brightness(1.35) drop-shadow(0 0 14px #b6ff3b); } }

/* ramp buttons: a little ramp drawn from blocks and a plank */
.pbtn.low { --c: var(--soft); } .pbtn.high { --c: var(--hard); }
.pbtn .mini { position: absolute; inset: 0; pointer-events: none; }
.trow.low { --c: var(--soft); } .trow.high { --c: var(--hard); }
.flag.low { --c: var(--soft); } .flag.high { --c: var(--hard); }

/* top view */
#path {
  position: absolute; left: 270px; right: 40px; top: 428px; height: 4px; border-radius: 2px; opacity: 0; transition: opacity .4s;
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .75) 0 14px, transparent 14px 28px);
}
#path.show { opacity: 1; }
.slot {
  position: absolute; width: 78px; height: 78px; margin: -39px 0 0 -39px; border-radius: 50%; z-index: 3;
  border: 5px dashed rgba(255, 255, 255, .95); background: rgba(255, 255, 255, .22);
  display: grid; place-items: center; color: #fff; font-size: 44px; font-weight: 900; line-height: 1;
  text-shadow: 0 2px 4px rgba(0, 0, 0, .4); opacity: 0; transition: opacity .3s; pointer-events: none;
}
.slot.show { opacity: 1; }
.slot.tap { pointer-events: auto; cursor: pointer; animation: pulse 1.4s ease-in-out infinite; }
.slot.has { opacity: .35; animation: none; }
#bumper-wrap .bumper { z-index: 6; transition: transform .35s cubic-bezier(.3, 1.4, .5, 1), opacity .3s; filter: drop-shadow(5px 7px 5px rgba(60, 30, 0, .35)); }
#bumper-wrap .bumper.tap { pointer-events: auto; cursor: pointer; }
#bumper-wrap .bumper.squish { filter: brightness(1.25) drop-shadow(5px 7px 5px rgba(60, 30, 0, .35)); }
#basket-wrap .basket { z-index: 2; filter: drop-shadow(6px 8px 6px rgba(60, 30, 0, .35)); transition: transform .4s cubic-bezier(.3, 1.5, .5, 1), opacity .3s; }
#basket-wrap .basket.hop { animation: hop .45s ease-in-out 3; }

/* guess cards and the end card draw little ramps too */
.g-art .plank, .idea-art .plank { z-index: 2; }
.g-art .arrow.floor, .idea-art .arrow { position: absolute; height: 10px; border-radius: 5px; background: var(--c); }
.idea-art .arrow::after { content: ""; position: absolute; right: -16px; top: -9px; border: 14px solid transparent; border-left: 18px solid var(--c); border-right: 0; }
.g-art.low { --c: var(--soft); } .g-art.high { --c: var(--hard); }
.guess[data-guess="low"] .g-lbl { color: var(--soft); }
.guess[data-guess="high"] .g-lbl { color: var(--hard); }
.idea-art.ramps { --c: var(--hard); }
.idea-art.turn i { position: absolute; display: block; }
.idea-art.turn .in { left: 70px; top: 92px; width: 150px; height: 10px; border-radius: 5px; background: var(--med); }
.idea-art.turn .bar { left: 206px; top: 78px; width: 74px; height: 20px; border-radius: 7px; background: linear-gradient(#3a6df0, #1c47c4); transform: rotate(-45deg); }
.idea-art.turn .out { left: 222px; top: 18px; width: 10px; height: 62px; border-radius: 5px; background: var(--med); }
.idea-art.turn .out::after { content: ""; position: absolute; left: -9px; top: -16px; border: 14px solid transparent; border-bottom: 18px solid var(--med); border-top: 0; }
.medal span { font-size: 18px; }