:root {
  --bg: #0b0f1a; --bg2: #121829; --panel: rgba(255,255,255,.05); --line: rgba(255,255,255,.1);
  --text: #e8ecf5; --muted: #8e97ad; --accent: #ffd166; --cat: #4fa3ff;
  --inert: #8c929c; --spark: #ffd166; --reactive: #ff8c42; --volatile: #ff4d6d; --chain: #ffe066; --dud: #5a6070;
  --c0: #4fa3ff; --c1: #ff6b9d; --c2: #3bd16f; --c3: #ffb84d; --c4: #c58bff; --c5: #5fe0c8; --c6: #ff8c42; --c7: #ffe066;
  --radius: 14px; --font: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif; --display: "Chakra Petch", var(--font);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { background: radial-gradient(1200px 600px at 50% -10%, #1a2340 0%, var(--bg) 60%) fixed; color: var(--text); font: 16px/1.45 var(--font); overflow-x: hidden; }
body.shake { animation: shake .4s linear; }
@keyframes shake { 0%,100% { transform: translate(0,0); } 20% { transform: translate(-6px,3px); } 40% { transform: translate(5px,-4px); } 60% { transform: translate(-4px,2px); } 80% { transform: translate(3px,-2px); } }
body.shake-big { animation: shakebig .7s linear; }
@keyframes shakebig { 0%,100% { transform: translate(0,0); } 10% { transform: translate(-12px,6px) rotate(-.4deg); } 30% { transform: translate(10px,-8px) rotate(.4deg); } 50% { transform: translate(-8px,5px); } 70% { transform: translate(7px,-4px); } 90% { transform: translate(-3px,2px); } }
#fx { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 5; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }

.top { display: flex; align-items: center; gap: 12px; padding: 12px 16px; max-width: 760px; margin: 0 auto; }
.logo { font: 700 22px/1 var(--display); letter-spacing: .02em; text-decoration: none; display: flex; align-items: center; gap: 2px; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: -3px; }
.logo .dot.a { background: var(--c0); } .logo .dot.b { background: var(--c1); } .logo .dot.c { background: var(--c7); margin-right: 8px; }
.dayno { color: var(--muted); font: 500 14px var(--display); }
.tools { margin-left: auto; display: flex; gap: 6px; }
.icon { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; width: 38px; height: 38px; font-size: 16px; }
.icon.lang { font: 700 13px var(--display); }
.icon:hover { background: rgba(255,255,255,.1); }

.screen { max-width: 760px; margin: 0 auto; padding: 8px 16px 40px; position: relative; z-index: 2; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 20px; }
.hidden { display: none !important; }
.btn { background: var(--accent); color: #141b33; border: 0; border-radius: 12px; padding: 14px 22px; font: 700 17px var(--display); letter-spacing: .02em; box-shadow: 0 6px 24px rgba(255,209,102,.25); }
.btn:hover { filter: brightness(1.05); }
.btn.ghost { background: var(--panel); color: var(--text); border: 1px solid var(--line); box-shadow: none; }
.btn.cat { background: var(--cat); color: #0b0f1a; box-shadow: 0 6px 24px color-mix(in srgb, var(--cat) 35%, transparent); }

/* intro */
.intro { text-align: center; padding-top: 24px; }
.intro h1 { font: 700 clamp(34px, 8vw, 54px)/1.05 var(--display); margin: 8px 0 6px; }
.intro .tag { color: var(--muted); font-size: 17px; margin: 0 0 22px; }
.intro .how { text-align: left; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; margin: 0 auto 16px; max-width: 520px; }
.intro .how p { margin: 6px 0; }
.intro .how p b { color: var(--accent); font-family: var(--display); margin-right: 6px; }
.levels { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 0 auto 22px; max-width: 520px; }
.lvl { font: 700 12px var(--display); padding: 5px 10px; border-radius: 999px; border: 1px solid currentColor; letter-spacing: .04em; text-transform: uppercase; }
.lvl.inert { color: var(--inert); } .lvl.spark { color: var(--spark); } .lvl.reactive { color: var(--reactive); } .lvl.volatile { color: var(--volatile); } .lvl.chain { color: var(--chain); background: rgba(255,224,102,.12); }
.lvl.dud { color: var(--dud); }
.intro .cats { display: flex; justify-content: center; gap: 10px; margin: 18px 0 0; font-size: 22px; }
.intro .note { color: var(--muted); font-size: 14px; margin-top: 14px; }
.intro .progress { color: var(--muted); font-size: 14px; margin: 10px 0 0; }

/* reaction */
.reaction { --cat: #4fa3ff; }
.rhead { display: flex; align-items: center; justify-content: space-between; margin: 4px 0 8px; }
.rhead .cat { font: 700 18px var(--display); color: var(--cat); }
.rhead .step { color: var(--muted); font: 500 14px var(--display); }
.fuse { position: relative; height: 10px; background: rgba(255,255,255,.08); border-radius: 999px; overflow: hidden; margin-bottom: 4px; }
.fuse-bar { position: absolute; inset: 0; width: 100%; background: linear-gradient(90deg, var(--cat), #fff); transform-origin: left; }
.fuse-bar.hot { background: linear-gradient(90deg, #ff4d6d, #ffd166); }
.fuse-n { display: block; text-align: right; font: 700 15px var(--display); color: var(--muted); height: 20px; margin-bottom: 4px; }
.fuse-n.hot { color: #ff4d6d; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 12px 10px; min-width: 0; position: relative; }
.card h3 { margin: 0 0 8px; font: 700 18px/1.2 var(--display); word-wrap: break-word; }
.card.a h3 { color: var(--c0); } .card.b h3 { color: var(--c1); }
.card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.card li { font-size: 13px; line-height: 1.3; }
.card li .k { display: block; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
.card li .k::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--c); margin-right: 5px; vertical-align: 1px; }
.card li .v { display: block; }
.card li .v.empty { color: var(--muted); }
.card li.hit .v { color: #fff; font-weight: 600; }
.card li.half .v { color: #ffd166; }
/* rows the two cards already share: lit before the answer, so the player sees the theme */
.card li.same, .card li.near { margin: 0 -8px; padding: 3px 8px; border-radius: 8px; background: color-mix(in srgb, var(--c) 14%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--c) 45%, transparent); }
.card li.same .v { color: #fff; font-weight: 600; text-shadow: 0 0 12px color-mix(in srgb, var(--c) 80%, transparent); }
.card li.near { background: color-mix(in srgb, var(--c) 7%, transparent); }
.card li.same .k::after { content: "="; margin-left: 6px; color: var(--c); font-weight: 700; }
.card li.near .k::after { content: "≈"; margin-left: 6px; color: var(--c); font-weight: 700; }
.goal { margin: 10px 0 10px; font-size: 15px; line-height: 1.35; color: var(--muted); }
.goal b { color: var(--text, #fff); font-family: var(--display); font-weight: 700; }
.sharedHint { margin: 8px 0 0; font-size: 12px; color: var(--muted); }
.card .marks { position: absolute; right: 10px; top: 10px; display: flex; gap: 3px; }
.slot { margin-top: 12px; }
.typing { position: relative; }
.typing input { width: 100%; padding: 15px 16px; font: 500 18px var(--font); color: var(--text); background: var(--bg2); border: 2px solid var(--cat); border-radius: 14px; outline: none; }
.typing input::placeholder { color: var(--muted); }
.typing.wrong input { animation: wrong .35s; border-color: #ff4d6d; }
@keyframes wrong { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-8px); } 75% { transform: translateX(8px); } }
.sugg { list-style: none; margin: 6px 0 0; padding: 0; background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; max-height: 240px; overflow-y: auto; }
.sugg:empty { display: none; }
.sugg li { padding: 10px 14px; cursor: pointer; display: flex; align-items: baseline; gap: 8px; border-top: 1px solid rgba(255,255,255,.05); }
.sugg li:first-child { border-top: 0; }
.sugg li.active, .sugg li:hover { background: rgba(255,255,255,.08); }
.sugg li .h { color: var(--muted); font-size: 12px; margin-left: auto; white-space: nowrap; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chips:empty { display: none; }
.chips .q { width: 100%; color: var(--muted); font-size: 13px; }
.chip { background: var(--panel); border: 1px solid var(--cat); color: var(--text); border-radius: 999px; padding: 8px 14px; font-size: 14px; }
.msg { min-height: 20px; margin-top: 6px; color: #ff8c42; font-size: 14px; }
.hint { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* the answer element and the reveal */
.you { margin-top: 12px; display: grid; grid-template-columns: 1fr; gap: 10px; }
.you .card { border-color: var(--cat); background: linear-gradient(180deg, color-mix(in srgb, var(--cat) 10%, transparent), var(--panel)); }
.you .card h3 { color: var(--cat); }
.you .card.x ul { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
.card .bond { display: inline-flex; gap: 3px; margin-left: 6px; vertical-align: middle; }
.card .bond i { width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--c); display: inline-block; }
.card .bond i.f { background: var(--c); } .card .bond i.h { background: linear-gradient(90deg, var(--c) 50%, transparent 50%); }
.scoreline { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.scoreline .num { font: 700 56px/1 var(--display); min-width: 90px; text-align: center; }
.scoreline .lvlbig { font: 700 15px var(--display); letter-spacing: .08em; text-transform: uppercase; padding: 6px 12px; border-radius: 10px; border: 1px solid currentColor; }
.scoreline .sub { color: var(--muted); font-size: 13px; }
.banner { position: fixed; left: 0; right: 0; top: 38%; text-align: center; z-index: 6; pointer-events: none; font: 700 clamp(30px, 9vw, 64px)/1 var(--display); letter-spacing: .06em; text-transform: uppercase; color: var(--chain); text-shadow: 0 0 30px rgba(255,224,102,.8), 0 2px 0 #7a5a00; animation: banner 2.6s ease-out forwards; }
@keyframes banner { 0% { opacity: 0; transform: scale(.4); } 15% { opacity: 1; transform: scale(1.1); } 25% { transform: scale(1); } 85% { opacity: 1; } 100% { opacity: 0; } }
.reveal { margin-top: 14px; display: grid; gap: 10px; }
.reveal .best { border-color: var(--chain); background: linear-gradient(180deg, rgba(255,224,102,.1), var(--panel)); }
.reveal .best h3 { color: var(--chain); }
.reveal .best .tagb { font: 700 11px var(--display); color: var(--chain); letter-spacing: .08em; text-transform: uppercase; }
.ladder { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; }
.ladder h4 { margin: 0 0 6px; font: 700 12px var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.ladder ol { margin: 0; padding: 0 0 0 20px; font-size: 14px; }
.ladder li { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; }
.ladder li.me { color: var(--accent); font-weight: 600; }
.ladder li .s { font-family: var(--display); font-weight: 700; }
.crowd { color: var(--muted); font-size: 13px; }
.nextrow { display: flex; justify-content: flex-end; margin-top: 4px; }
.dimmed .top, .dimmed .cards, .dimmed .rhead, .dimmed .fuse, .dimmed .fuse-n { opacity: .35; transition: opacity .3s; }

/* result */
.result { text-align: center; padding-top: 10px; }
.result .total { font: 700 72px/1 var(--display); color: var(--accent); margin: 6px 0 2px; text-shadow: 0 0 30px currentColor; }
.result .total .of { font-size: .32em; color: var(--muted); text-shadow: none; margin-left: 4px; }
.curvebox { max-width: 520px; margin: 6px auto 0; }
.curve { width: 100%; height: 150px; display: block; }
.better { font: 700 13px var(--display); letter-spacing: .08em; text-transform: uppercase; color: #5fe0c8; margin: 2px 0 14px; }
.logbox { max-width: 520px; margin: 0 auto; text-align: left; }
.lbl { font: 700 12px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 14px 0 6px; }
.lbl span { font-weight: 500; text-transform: none; letter-spacing: 0; margin-left: 8px; }
.log { width: 100%; height: 170px; display: block; }
.log .grid { stroke: rgba(255,255,255,.08); stroke-dasharray: 3 5; }
.log .stem { stroke-width: 2; opacity: .6; }
.log .glow { filter: drop-shadow(0 0 8px var(--chain)); }
.ax { fill: var(--muted); font: 500 10px var(--display); text-anchor: end; }
.ax.mid { text-anchor: middle; }
.ax.you { fill: #ff4d6d; font-weight: 700; }
.bearing { max-width: 520px; margin: 18px auto 0; text-align: left; }
.brow { display: grid; grid-template-columns: 14px 120px 1fr; gap: 10px; align-items: baseline; padding: 8px 0; border-top: 1px dashed var(--line); font-size: 14px; color: var(--muted); }
.brow b { font: 700 13px var(--display); letter-spacing: .04em; text-transform: uppercase; }
.brow.now { color: var(--text); }
.brow .dotl { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.result .rows { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; max-width: 420px; margin: 14px auto; text-align: left; display: grid; gap: 6px; }
.result .row { display: grid; grid-template-columns: 28px 44px 1fr auto; align-items: center; gap: 8px; font-size: 15px; }
.result .row .sc { font: 700 17px var(--display); }
.result .row .sq { letter-spacing: 1px; font-size: 14px; }
.result .row .lv { font: 700 10px var(--display); text-transform: uppercase; letter-spacing: .06em; }
.sharebar { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 14px 0; }
.sharebar .btn { padding: 11px 16px; font-size: 15px; }
.countdown { color: var(--muted); margin-top: 16px; }
.countdown b { font: 700 22px var(--display); color: var(--text); display: block; }
.previewnav { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.previewnav .btn { text-decoration: none; font-size: 14px; }
.review { margin-top: 20px; text-align: left; display: grid; gap: 10px; }
.review details { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; }
.review summary { cursor: pointer; font-weight: 600; display: flex; gap: 10px; align-items: center; }
.review summary .sc { margin-left: auto; font: 700 16px var(--display); }
.review .small { font-size: 14px; color: var(--muted); margin-top: 6px; }
.review .small b { color: var(--text); }

/* stats dialog */
.stats { background: var(--bg2); color: var(--text); border: 1px solid var(--line); border-radius: 16px; padding: 20px; width: min(92vw, 420px); }
.stats::backdrop { background: rgba(0,0,0,.6); }
.stats h2 { margin: 0 0 12px; font: 700 22px var(--display); }
.stats .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; text-align: center; }
.stats .grid b { display: block; font: 700 26px var(--display); }
.stats .grid span { color: var(--muted); font-size: 12px; }
.stats .hist { display: grid; gap: 4px; margin: 16px 0 6px; }
.stats .hist div { display: grid; grid-template-columns: 54px 1fr; gap: 8px; align-items: center; font-size: 12px; }
.stats .hist i { display: block; height: 14px; background: var(--accent); border-radius: 3px; min-width: 2px; }
.stats .close { margin-top: 14px; width: 100%; }

.notyet { text-align: center; padding: 60px 10px; color: var(--muted); }

@media (max-width: 420px) {
  .card li { font-size: 12px; }
  .card h3 { font-size: 16px; }
  .scoreline .num { font-size: 46px; min-width: 76px; }
}
@media (prefers-reduced-motion: reduce) {
  body.shake, body.shake-big { animation: none; }
  .banner { animation: bannerstill 2.4s forwards; }
  @keyframes bannerstill { 0%,80% { opacity: 1; } 100% { opacity: 0; } }
}