/* Live Wire Challenge — mobile-first, 390×844 portrait */
:root {
  --navy: #0d1a7a;
  --navy-deep: #070f4a;
  --volt: #ffc928;
  --ink: #15171c;
  --muted: #5b606b;
  --paper: #f3f4f7;
  --card: #ffffff;
  --line: #d5d8e0;
  --ok: #23703f;
  --ok-bg: #dcefe2;
  --bad: #a32020;
  --bad-bg: #f9dada;
  --safe-bottom: max(12px, env(safe-area-inset-bottom));
  --safe-top: max(12px, env(safe-area-inset-top));
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--paper); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px; line-height: 1.4;
}
body { overscroll-behavior: none; }
#app { min-height: 100dvh; max-width: 430px; margin: 0 auto; position: relative; background: var(--paper); }
.screen { min-height: 100dvh; padding: var(--safe-top) 16px var(--safe-bottom); display: flex; flex-direction: column; }
.hidden { display: none !important; }

/* ---------- Start / Win ---------- */
.logo-card {
  background: #fff; border-radius: 14px; margin: 10px auto 12px; padding: 4px 10px;
  width: min(260px, 74%); box-shadow: 0 1px 3px rgba(0,0,0,.08); border-bottom: 4px solid var(--volt);
}
.start-logo { display: block; width: 100%; height: auto; }
.start-kicker { text-align: center; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 2px; }
h1 { text-align: center; font-size: 30px; line-height: 1.1; margin: 2px 0 6px; color: var(--navy); letter-spacing: -.01em; }
.byline { text-align: center; margin: 0 0 12px; color: var(--ink); font-size: 15px; }
.how { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin-bottom: 12px; }
.how h2, .leader h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 6px; }
.how ul { margin: 0; padding-left: 18px; font-size: 14px; }
.how li { margin: 2px 0; }
.how-note { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.btn {
  display: block; width: 100%; border: 0; border-radius: 12px; padding: 14px 16px;
  font: inherit; font-weight: 700; font-size: 17px; cursor: pointer; touch-action: manipulation;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--navy); color: #fff; box-shadow: inset 0 -3px 0 var(--volt); }
.btn-secondary { background: #fff; color: var(--navy); border: 2px solid var(--navy); margin-top: 8px; }
.btn[disabled] { opacity: .45; }
.btn-row { display: flex; gap: 10px; margin-top: 10px; }
.btn-row .btn { flex: 1; margin-top: 0; }
.leader { margin-top: 14px; }
.leader ol { margin: 0; padding: 0; list-style: none; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.leader li { display: flex; justify-content: space-between; padding: 8px 12px; border-top: 1px solid var(--line); font-size: 14px; }
.leader li:first-child { border-top: 0; }
.leader .score { font-weight: 700; color: var(--navy); }
.leader .meta { color: var(--muted); }
.leader-empty { font-size: 13px; color: var(--muted); margin: 0; }
.fineprint { font-size: 11px; color: var(--muted); text-align: center; margin: 14px 0 4px; line-height: 1.35; }
#screen-start .fineprint, #screen-win .fineprint { margin-top: auto; padding-top: 12px; }
.stats { text-align: center; color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.code-box { background: var(--navy); color: #fff; border-radius: 14px; padding: 14px; text-align: center; margin-bottom: 10px; border-bottom: 4px solid var(--volt); }
.code-box .label { display: block; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; opacity: .8; }
.code-box .code { display: block; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 24px; font-weight: 700; margin-top: 4px; color: var(--volt); word-break: break-all; }
.apply-note { text-align: center; font-size: 14px; margin: 0 0 4px; }

/* ---------- Play ---------- */
.play-top { display: flex; align-items: center; gap: 10px; padding-bottom: 8px; border-bottom: 2px solid var(--navy); }
.play-logo { height: 30px; width: auto; background: #fff; border-radius: 6px; padding: 2px 4px; }
.play-title { flex: 1; font-weight: 800; color: var(--navy); font-size: 16px; }
.timer { font-family: ui-monospace, Menlo, Consolas, monospace; font-weight: 700; font-size: 17px; background: var(--navy); color: var(--volt); border-radius: 8px; padding: 3px 9px; }
.play-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.level-name { font-weight: 800; font-size: 18px; }
.tries { display: flex; gap: 3px; }
.tries svg { width: 18px; height: 22px; }
.type-tag { display: inline-block; align-self: flex-start; margin-top: 4px; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); background: #e2e5f5; border-radius: 6px; padding: 2px 8px; }
.prompt { margin: 8px 0 8px; font-size: 15px; }
.step-q { font-weight: 700; margin: 4px 0 10px; font-size: 16px; }
.step-count { font-size: 12px; color: var(--muted); margin-bottom: 2px; }
#stage { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
#stage svg { display: block; width: 100%; height: auto; touch-action: manipulation; user-select: none; -webkit-user-select: none; }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.opts.wide { grid-template-columns: 1fr; }
.opt { border: 2px solid var(--line); background: #fff; border-radius: 12px; padding: 16px 10px; font: inherit; font-weight: 700; font-size: 18px; color: var(--ink); cursor: pointer; }
.opts.wide .opt { font-size: 16px; padding: 13px 12px; text-align: left; }
.opt.wrong { border-color: var(--bad); background: var(--bad-bg); color: var(--bad); text-decoration: line-through; }
.opt.right { border-color: var(--ok); background: var(--ok-bg); color: var(--ok); }
.feedback { min-height: 44px; margin: 10px 0 8px; font-size: 14px; border-radius: 10px; padding: 0; }
.feedback.bad { background: var(--bad-bg); color: var(--bad); padding: 9px 12px; }
.feedback.ok { background: var(--ok-bg); color: var(--ok); padding: 9px 12px; }
.feedback.info { color: var(--muted); padding: 4px 2px; }
.play-actions { display: flex; gap: 10px; margin-top: auto; padding-top: 6px; }
.play-actions .btn-primary { flex: 2; }
.play-actions .btn-secondary { flex: 1; margin-top: 0; }

/* svg bits */
.wire-end rect.tag { fill: #fff; stroke: var(--line); stroke-width: 1.5; }
.wire-end.sel rect.tag { stroke: var(--navy); stroke-width: 3; fill: #eef0fb; }
.wire-end text { font-size: 14px; font-weight: 700; fill: var(--ink); }
.wire-end text.sub { font-size: 11px; font-weight: 400; fill: var(--muted); }
.term text { font-size: 11.5px; font-weight: 700; fill: var(--ink); }
.term .ring { fill: none; stroke: var(--navy); stroke-width: 3; opacity: 0; }
.pick-mode .term .ring { opacity: .55; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .15; } }
.hz { cursor: pointer; }
.hz .hit { fill: transparent; }
.hz.miss .hit { fill: rgba(163,32,32,.12); stroke: var(--bad); stroke-width: 2; stroke-dasharray: 5 4; }
.hz.found .hit { fill: rgba(35,112,63,.14); stroke: var(--ok); stroke-width: 3; }
.spark { animation: sparkle .5s steps(2) infinite; }
@keyframes sparkle { 50% { opacity: .1; } }

/* ---------- Sheet ---------- */
.overlay { position: fixed; inset: 0; background: rgba(7,15,74,.55); display: flex; align-items: flex-end; justify-content: center; z-index: 20; }
.sheet { background: #fff; width: 100%; max-width: 430px; border-radius: 18px 18px 0 0; padding: 20px 18px var(--safe-bottom); }
.sheet h2 { margin: 0 0 8px; font-size: 22px; }
.sheet.ok h2 { color: var(--ok); }
.sheet p { margin: 0 0 12px; font-size: 15px; }

/* ---------- Shock ---------- */
.shock { position: fixed; inset: 0; z-index: 30; display: flex; align-items: center; justify-content: center; background: var(--navy-deep); overflow: hidden; }
.shock-flash { position: absolute; inset: 0; background: radial-gradient(circle at 50% 32%, #fffbe0 0, #ffc928 38%, rgba(255,201,40,0) 72%); opacity: 0; pointer-events: none; }
.shock-inner { position: relative; width: 100%; max-width: 430px; padding: 20px; text-align: center; color: #fff; }
.zap-svg { width: 78%; max-width: 300px; height: auto; display: block; margin: 0 auto; overflow: visible; }
.shock-text h2 { font-size: 44px; margin: 4px 0 2px; color: var(--volt); letter-spacing: .04em; font-weight: 900; text-shadow: 0 2px 0 #070f4a, 0 0 6px #070f4a, 2px 0 0 #070f4a, -2px 0 0 #070f4a; }
.shock-sub { margin: 0 0 10px; font-size: 15px; opacity: .9; }
.shock-why { margin: 0 auto 16px; font-size: 15px; background: rgba(255,255,255,.1); border-radius: 12px; padding: 10px 12px; text-align: left; }
.shock-text .btn-primary { background: var(--volt); color: var(--navy-deep); box-shadow: none; }
.bolt { fill: none; stroke: var(--volt); stroke-width: 6; stroke-linejoin: round; stroke-linecap: round; opacity: 0; }
.skeleton, .hair-up, .face-zap, .face-dazed, .smoke { opacity: 0; }
.puff { fill: #9aa0ab; }
.shock-text { opacity: 0; }

/* phase 1: zapping */
.shock.zap .shock-flash { animation: flash .16s steps(2) infinite; }
.shock.zap .bolt { animation: boltz .12s steps(2) infinite; }
.shock.zap .bolt.b2, .shock.zap .bolt.b4 { animation-delay: .06s; }
.shock.zap .figure { animation: jitter .07s linear infinite; }
.shock.zap .skeleton { animation: xray .2s steps(2) infinite; }
.shock.zap .body { animation: xrayInv .2s steps(2) infinite; }
.shock.zap .hair-up, .shock.zap .face-zap { opacity: 1; }
.shock.zap .spot { fill: #1a2470; }
.shock.zap .bolt { stroke: #ffe14d; }
.shock.zap .hair-flat, .shock.zap .face-normal { opacity: 0; }
@keyframes flash { 0% { opacity: 0; } 50% { opacity: .9; } }
@keyframes boltz { 0% { opacity: 1; } 50% { opacity: .15; } }
@keyframes jitter { 0% { transform: translate(-2px, 1px); } 25% { transform: translate(2px, -2px); } 50% { transform: translate(-1px, 2px); } 75% { transform: translate(2px, 1px); } }
@keyframes xray { 0% { opacity: 1; } 50% { opacity: 0; } }
@keyframes xrayInv { 0% { opacity: 0; } 50% { opacity: 1; } }

/* phase 2: frazzled */
.shock.done .hair-up, .shock.done .face-dazed, .shock.done .smoke { opacity: 1; }
.shock.done .hair-flat, .shock.done .face-normal, .shock.done .face-zap { opacity: 0; }
.shock.done .head { fill: #d8d4cc; }
.shock.done .hair-up path { stroke: #2a1c0e; }
.shock.done .figure { animation: wobble 1.6s ease-in-out infinite; transform-origin: 110px 250px; }
.shock.done .puff { animation: puff 1.8s ease-out infinite; }
.shock.done .puff.p2 { animation-delay: .5s; }
.shock.done .puff.p3 { animation-delay: 1s; }
.shock.done .shock-text { opacity: 1; transition: opacity .3s; }
.shock.done.instant .shock-text { transition: none; }
@keyframes wobble { 50% { transform: rotate(2.5deg); } }
@keyframes puff { 0% { transform: translateY(8px) scale(.6); opacity: .9; } 100% { transform: translateY(-34px) scale(1.4); opacity: 0; } }

/* frozen frames for previews */
.shock.freeze-mid .shock-flash { animation: none; opacity: .9; }
.shock.freeze-mid .bolt { animation: none; opacity: 1; }
.shock.freeze-mid .figure { animation: none; transform: translate(2px,-1px); }
.shock.freeze-mid .skeleton { animation: none; opacity: 1; }
.shock.freeze-mid .body { animation: none; opacity: 0; }
.shock.freeze-mid .shock-text { opacity: 1; }
.shock.freeze-mid .shock-text .btn, .shock.freeze-mid .shock-why, .shock.freeze-mid .shock-sub { visibility: hidden; }

@media (prefers-reduced-motion: reduce) {
  .shock.zap .shock-flash, .shock.zap .figure, .shock.done .figure { animation: none; }
}