:root{
  --bg:#14152B; --panel:#1E2142; --text:#F4F6FB; --muted:#8B8FB8;
  --danger:#FF6B5E; --success:#6BFFB8; --accent:#3DA9FC;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;overflow:hidden;
  touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
#cv{position:fixed;inset:0;width:100%;height:100%;display:block}

/* ---------- HUD ---------- */
#hud{position:fixed;inset:0;pointer-events:none;display:flex;flex-direction:column;align-items:center}
.topRow{align-self:stretch;display:flex;justify-content:space-between;align-items:flex-start;
  padding:calc(env(safe-area-inset-top) + 10px) 14px 0}
.stageBadge{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:13px;letter-spacing:.08em;
  background:var(--panel);color:var(--accent);padding:7px 11px;border-radius:10px;min-width:84px;text-align:center}
.scoreBox{display:flex;flex-direction:column;align-items:center;gap:2px}
#score{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:34px;line-height:1}
#mult{font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:13px;color:var(--muted)}
#mult.hot{color:var(--success)}
.progBox{margin-top:5px;display:flex;flex-direction:column;align-items:center;gap:4px}
#progTxt{font-size:11px;letter-spacing:.12em;color:var(--muted);font-weight:600}
.progBar{width:110px;height:6px;border-radius:4px;background:var(--panel);overflow:hidden}
#progFill{height:100%;width:0;background:var(--accent);border-radius:4px;transition:width .3s}
.timeBadge{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:14px;background:#fff;color:#000;
  padding:6px 9px;border-radius:6px;min-width:84px;text-align:center}

#musicBtn{top:calc(env(safe-area-inset-top) + 58px)}
#pauseBtn{top:calc(env(safe-area-inset-top) + 110px)}
#musicBtn.off{opacity:.55}
#musicBtn .slash{display:none}
#musicBtn.off .slash{display:inline}
.sideBtn{position:fixed;left:14px;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(255,255,255,.12);color:#fff;pointer-events:auto;cursor:pointer;
  background:rgba(255,255,255,.08) radial-gradient(circle at 25% 20%,rgba(255,255,255,.25),transparent 55%);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:5}
.sideBtn svg{width:20px;height:20px}

/* ---------- Bonus buttons (glass squares, Cubide style) ---------- */
#bonusCol{position:fixed;right:14px;top:calc(env(safe-area-inset-top) + 58px);display:none;flex-direction:column;gap:10px;z-index:5}
.bonusBtn{position:relative;width:46px;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.14);color:#fff;cursor:pointer;
  background:rgba(255,255,255,.08) radial-gradient(circle at 25% 20%,rgba(255,255,255,.25),transparent 55%);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;
  opacity:.35;transition:opacity .2s,box-shadow .2s;touch-action:none}
.bonusBtn svg{width:24px;height:24px}
.bonusBtn .sweep{position:absolute;inset:0;border-radius:12px;overflow:hidden;pointer-events:none}
.bonusBtn .cnt{position:absolute;top:-7px;right:-7px;min-width:19px;height:19px;border-radius:10px;background:var(--success);color:#14152B;
  font:700 11px 'Space Grotesk',sans-serif;display:none;align-items:center;justify-content:center;padding:0 5px}
.bonusBtn.ready{opacity:1;background:rgba(var(--c),.28) radial-gradient(circle at 25% 20%,rgba(255,255,255,.28),transparent 55%)}
.bonusBtn.ready .cnt{display:flex}
.bonusBtn.ready .sweep::after{content:'';position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);animation:sweep 1.8s infinite}
.bonusBtn.on{opacity:1;box-shadow:0 0 0 2px rgb(var(--c)),0 0 18px rgba(var(--c),.8)}
@keyframes sweep{to{left:130%}}

/* ---------- Tutorial bubble ---------- */
/* in-game message: NO background box, the game stays visible behind; outlined text stays readable on any background */
#tuto{position:fixed;left:50%;top:40%;transform:translate(-50%,-50%);max-width:290px;background:none;border:0;
  padding:0;text-align:center;font-size:15px;font-weight:600;line-height:1.45;color:#fff;opacity:.92;
  text-shadow:0 0 2px #0A0B1C,0 0 2px #0A0B1C,0 1px 3px rgba(10,11,28,.95),0 0 14px rgba(10,11,28,.7);
  display:none;pointer-events:none;z-index:4}
#tuto b{color:var(--accent)}

/* ---------- Overlays ---------- */
.overlay{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:24px;
  background:rgba(20,21,43,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:10}
.overlay.show{display:flex}
.card{background:var(--panel);border-radius:22px;padding:28px 24px;width:100%;max-width:340px;text-align:center;
  border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 60px rgba(0,0,0,.45)}
.card h1{font-family:'Space Grotesk',sans-serif;font-size:40px;letter-spacing:.02em;line-height:1}
.card h2{font-family:'Space Grotesk',sans-serif;font-size:26px;margin-bottom:6px}
.card p{color:var(--muted);font-size:14px;line-height:1.5;margin:10px 0 20px}
.tag{display:inline-block;font-size:11px;letter-spacing:.14em;color:var(--accent);font-weight:600;margin-bottom:12px}
.tag.bad{color:var(--danger)}
.btn{display:block;width:100%;border:0;border-radius:14px;padding:15px;font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:18px;cursor:pointer;margin-top:10px;color:#14152B;background:var(--accent)}
.btn.ghost{background:rgba(255,255,255,.07);color:var(--text);font-size:15px;padding:12px}
.small{font-size:11px;color:var(--muted);margin-top:14px;letter-spacing:.05em}
.bigNum{font-family:'Space Grotesk',sans-serif;font-size:44px;font-weight:700;margin:6px 0 2px}

/* ================= Splash ================= */
#splash{position:fixed;inset:0;z-index:50;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;transition:opacity .5s}
#splash.hide{opacity:0;pointer-events:none}
#splash .logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:46px;letter-spacing:.04em}
#splash .bar{width:120px;height:4px;border-radius:3px;background:var(--panel);overflow:hidden}
#splash .bar i{display:block;height:100%;width:40%;background:var(--accent);border-radius:3px;animation:load 1s ease-in-out infinite}
@keyframes load{0%{transform:translateX(-100%)}100%{transform:translateX(250%)}}

/* ================= Main menu (full-screen, app style) ================= */
#menu{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;padding:0}
#menu.show{display:flex}
.menuWrap{width:100%;max-width:420px;height:100%;display:flex;flex-direction:column;align-items:center;
  padding:calc(env(safe-area-inset-top) + 64px) 22px calc(env(safe-area-inset-bottom) + 18px)}
.brand{text-align:center;margin-top:4vh}
.brand h1{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:54px;letter-spacing:.03em;line-height:1;
  text-shadow:0 0 30px rgba(61,169,252,.35)}
.brand p{color:var(--muted);font-size:14px;margin-top:10px}
#menuHello{font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.1em;color:var(--accent);margin-top:14px;text-transform:uppercase;min-height:16px}
.playBig{margin-top:auto;width:100%;border:0;border-radius:22px;padding:20px 10px 16px;cursor:pointer;color:#14152B;
  background:var(--accent);box-shadow:0 12px 40px rgba(0,0,0,.35),inset 0 -4px 0 rgba(0,0,0,.18);
  font-family:'Space Grotesk',sans-serif;display:flex;flex-direction:column;align-items:center;gap:2px;transition:transform .1s}
.playBig:active{transform:scale(.97)}
.playBig b{font-size:30px;letter-spacing:.06em}
.playBig span{font-size:12px;font-weight:700;letter-spacing:.14em;opacity:.7}
.stageRow{display:flex;gap:7px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.chip{width:40px;height:40px;border-radius:11px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.07);
  color:var(--text);font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:15px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.chip.next{border-color:var(--accent);color:var(--accent)}
.chip.locked{opacity:.35;cursor:default}
.chip svg{width:15px;height:15px}
.menuGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;margin-top:18px}
.menuGrid a{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 6px;border-radius:16px;text-decoration:none;color:var(--text);
  background:rgba(255,255,255,.07) radial-gradient(circle at 25% 20%,rgba(255,255,255,.14),transparent 60%);border:1px solid rgba(255,255,255,.1);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:12px;font-weight:600;letter-spacing:.04em}
.menuGrid a svg{width:24px;height:24px}
.menuGrid a:nth-child(1) svg{color:#FFD166}.menuGrid a:nth-child(2) svg{color:#B388FF}.menuGrid a:nth-child(3) svg{color:#3DA9FC}
#guestHint{display:none;margin-top:12px;font-size:12px;color:var(--muted);text-align:center}
#guestHint a{color:var(--accent)}
.menuFoot{margin-top:16px;font-size:12px;color:var(--muted);display:flex;gap:14px}
.menuFoot a{color:var(--muted);text-decoration:none}

/* ================= Welcome (pseudo / login) ================= */
#welcome{z-index:20;background:rgba(20,21,43,.86)}
.field{width:100%;border:1px solid rgba(255,255,255,.14);background:rgba(0,0,0,.25);color:var(--text);border-radius:12px;
  padding:13px 14px;font:600 16px Inter,sans-serif;margin-top:8px;outline:none;text-align:center}
.field:focus{border-color:var(--accent)}
.linkBtn{background:none;border:0;color:var(--accent);font:600 13px Inter,sans-serif;margin-top:14px;cursor:pointer}
#wMsg{color:var(--danger);font-size:13px;min-height:18px;margin-top:10px}
.note{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.45}
#doneRank{font-family:'Space Grotesk',sans-serif;color:var(--success);font-size:14px;min-height:18px;margin:-8px 0 8px}

/* HUD only during a game; music button stays usable above the menu */
body:not(.inGame) #hud{display:none}
#musicBtn{z-index:12}