/* ===== Shared styles for the Learning Hub ===== */
:root{
  --pink:#ff5fa2; --purple:#8b5cf6; --blue:#3b82f6; --cyan:#06b6d4;
  --green:#22c55e; --yellow:#facc15; --orange:#fb923c; --red:#ef4444;
  --ink:#1f2440; --paper:#fff;
  --shadow:0 8px 0 rgba(0,0,0,.12), 0 14px 30px rgba(0,0,0,.18);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{
  font-family:"Trebuchet MS","Comic Sans MS","Segoe UI",system-ui,sans-serif;
  color:var(--ink);
  background:radial-gradient(1200px 600px at 10% -10%,#a78bfa33,transparent),
             radial-gradient(1000px 500px at 110% 10%,#34d39933,transparent),
             linear-gradient(160deg,#eef2ff,#fef3ff 60%,#ecfeff);
  min-height:100%;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1000px;margin:0 auto;padding:18px 16px 60px}
.topbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:6px 0 18px}
.back{
  text-decoration:none;background:#fff;border:3px solid #0001;border-radius:999px;
  padding:10px 18px;font-weight:bold;font-size:18px;color:var(--ink);box-shadow:var(--shadow)
}
.back:active{transform:translateY(3px)}
h1.title{font-size:clamp(28px,6vw,52px);margin:.2em 0;text-align:center;line-height:1.05}
.subtitle{text-align:center;font-size:clamp(16px,3vw,22px);opacity:.8;margin:0 0 18px}

/* Score / streak strip */
.hud{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:8px 0 18px}
.chip{background:#fff;border-radius:999px;padding:10px 18px;font-weight:bold;font-size:18px;
  box-shadow:var(--shadow);display:flex;align-items:center;gap:8px}

/* Big buttons / answer tiles */
.btn{
  cursor:pointer;border:none;border-radius:22px;padding:18px 22px;font-size:clamp(20px,4vw,30px);
  font-weight:bold;color:#fff;background:var(--blue);box-shadow:var(--shadow);
  font-family:inherit;transition:transform .05s
}
.btn:active{transform:translateY(4px)}
.btn.big{font-size:clamp(28px,7vw,46px);padding:24px}
.btn.pink{background:var(--pink)} .btn.purple{background:var(--purple)}
.btn.green{background:var(--green)} .btn.orange{background:var(--orange)}
.btn.cyan{background:var(--cyan)} .btn.red{background:var(--red)}
.btn.yellow{background:var(--yellow);color:#5b4a00}

.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:560px){.grid.three,.grid.four{grid-template-columns:repeat(2,1fr)}}

/* Card menu (hub pages) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px}
.card{
  text-decoration:none;color:var(--ink);background:#fff;border-radius:26px;padding:26px 20px;
  text-align:center;box-shadow:var(--shadow);transition:transform .08s;border:4px solid #0000
}
.card:hover{transform:translateY(-4px)}
.card:active{transform:translateY(2px)}
.card .emoji{font-size:64px;display:block;line-height:1}
.card .name{font-size:24px;font-weight:bold;margin-top:8px}
.card .desc{font-size:15px;opacity:.7;margin-top:4px}

/* Question stage */
.stage{background:#fff;border-radius:30px;padding:30px 24px;box-shadow:var(--shadow);text-align:center}
.question{font-size:clamp(34px,9vw,72px);font-weight:bold;margin:10px 0 24px}
.bigemoji{font-size:clamp(70px,22vw,160px);line-height:1}

input.answer{
  font-family:inherit;font-size:40px;text-align:center;width:min(320px,80%);
  padding:14px;border-radius:18px;border:4px solid #ddd;outline:none
}
input.answer:focus{border-color:var(--purple)}

.feedback{font-size:30px;font-weight:bold;min-height:42px;margin-top:14px}
.ok{color:var(--green)} .no{color:var(--red)}

/* feedback flashes */
@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.15)}100%{transform:scale(1)}}
.pop{animation:pop .35s ease}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.shake{animation:shake .3s}
.correct{outline:6px solid var(--green)!important}
.wrong{outline:6px solid var(--red)!important;opacity:.6}

/* progress dots */
.dots{display:flex;gap:8px;justify-content:center;margin:10px 0 0}
.dot{width:16px;height:16px;border-radius:50%;background:#0002}
.dot.done{background:var(--green)} .dot.now{background:var(--yellow)}

/* settings row */
.opts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:14px 0}
.opt{cursor:pointer;background:#fff;border:3px solid #0001;border-radius:999px;padding:8px 16px;
  font-weight:bold;font-size:16px;box-shadow:0 3px 0 #0001;font-family:inherit;color:var(--ink)}
.opt.active{background:var(--purple);color:#fff;border-color:transparent}

/* confetti canvas overlay */
#confetti{position:fixed;inset:0;pointer-events:none;z-index:50}

/* tap feedback for speak buttons — confirms the tap even when audio fails */
@keyframes tapped{0%{transform:scale(1)}35%{transform:scale(1.07)}100%{transform:scale(1)}}
.tapped{animation:tapped .3s ease; filter:brightness(1.12)}

/* non-blocking notice + live caption when no speech voice is available */
#speech-fallback{
  position:fixed; left:50%; bottom:12px; transform:translateX(-50%); z-index:60;
  max-width:92vw; background:var(--ink); color:#fff; border-radius:16px;
  padding:10px 18px; text-align:center; box-shadow:0 10px 28px rgba(0,0,0,.28);
}
#speech-fallback .sf-note{font-size:14px; opacity:.85}
#speech-fallback .sf-cap{font-size:clamp(20px,4vw,28px); font-weight:bold; margin-top:2px; min-height:28px}

/* daily streak badge + month calendar */
.streakwrap{display:flex;flex-direction:column;align-items:center;gap:14px;margin:6px 0 22px}
.streakbadge{font-size:clamp(20px,4.5vw,28px);font-weight:bold;color:#fff;border-radius:999px;
  padding:12px 24px;box-shadow:var(--shadow);background:linear-gradient(160deg,#fb923c,#ef4444)}
.streakbadge.zero{background:linear-gradient(160deg,#a78bfa,#60a5fa)}
.cal{background:#fff;border-radius:26px;padding:18px 18px 14px;box-shadow:var(--shadow);width:100%;max-width:380px}
.cal h3{margin:2px 0 12px;text-align:center;font-size:20px}
.cal .grid7{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;text-align:center}
.cal .dow{font-size:12px;font-weight:bold;opacity:.5;padding-bottom:2px}
.cal .day{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;border-radius:50%;
  font-size:15px;font-weight:bold;color:var(--ink);background:#f6f7ff}
.cal .day.empty{visibility:hidden;background:none}
.cal .day.on{background:linear-gradient(160deg,#fb923c,#ef4444);color:#fff}
.cal .day.today{outline:3px solid var(--purple);outline-offset:1px}
.cal .legend{display:flex;gap:16px;justify-content:center;margin-top:12px;font-size:13px;opacity:.7}

/* avatar (composed from equipped items; font-size on .avatar = px size, inner uses em) */
.avatar{position:relative;display:flex;align-items:center;justify-content:center;border-radius:24%}
.av-circle{width:82%;height:82%;border-radius:50%;display:flex;align-items:center;justify-content:center;
  position:relative;box-shadow:inset 0 -0.05em 0.12em rgba(0,0,0,.15)}
.av-face{font-size:.52em;line-height:1}
.av-hat{position:absolute;top:-3%;left:50%;transform:translateX(-50%);font-size:.4em;line-height:1}
.av-acc{position:absolute;top:33%;left:50%;transform:translateX(-50%);font-size:.3em;line-height:1}

/* avatar customizer page */
.av-balance{font-size:clamp(20px,5vw,28px);font-weight:bold;background:#fef9c3;color:#854d0e;
  border-radius:999px;padding:10px 22px;display:inline-block;box-shadow:var(--shadow);margin:6px 0 4px}
.itemgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:14px;margin-bottom:8px}
.item{background:#fff;border-radius:20px;padding:14px 8px 12px;text-align:center;box-shadow:var(--shadow);
  cursor:pointer;border:4px solid transparent;transition:transform .08s}
.item:active{transform:translateY(2px)}
.item .it-vis{font-size:48px;line-height:1;height:54px;display:flex;align-items:center;justify-content:center}
.item .it-swatch{width:50px;height:50px;border-radius:50%;margin:2px auto;box-shadow:inset 0 -4px 8px rgba(0,0,0,.12)}
.item .it-name{font-weight:bold;font-size:15px;margin-top:4px}
.item .it-state{font-size:13px;font-weight:bold;margin-top:4px;border-radius:999px;padding:3px 8px;display:inline-block}
.item.equipped{border-color:var(--green);background:linear-gradient(160deg,#dcfce7,#fff)}
.item.equipped .it-state{background:var(--green);color:#fff}
.item.owned .it-state{background:#e0e7ff;color:#3730a3}
.item.buy .it-state{background:#fef3c7;color:#92400e}
.item.locked{opacity:.6}
.item.locked .it-state{background:#e5e7eb;color:#6b7280}
.item.shake{animation:shake .3s}

/* daily missions */
.missions{margin:6px 0 20px}
.missionlist{display:grid;gap:12px;max-width:520px;margin:0 auto}
.mission{background:#fff;border-radius:20px;padding:14px 16px;box-shadow:var(--shadow);text-align:left}
.mission.done{background:linear-gradient(160deg,#dcfce7,#ffffff)}
.m-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.m-label{font-weight:bold;font-size:17px}
.m-reward{font-weight:bold;font-size:14px;color:#b45309;background:#fef3c7;border-radius:999px;padding:5px 11px;white-space:nowrap}
.mission.done .m-reward{color:#166534;background:#bbf7d0}
.m-bar{height:14px;background:#eef0f7;border-radius:999px;margin:10px 0 4px;overflow:hidden}
.m-fill{height:100%;background:linear-gradient(90deg,#8b5cf6,#06b6d4);border-radius:999px;transition:width .5s ease}
.mission.done .m-fill{background:linear-gradient(90deg,#22c55e,#86efac)}
.m-prog{font-size:13px;opacity:.65;text-align:right}

/* trophy room: section headings */
.section-title{text-align:center;font-size:clamp(22px,5vw,30px);margin:24px 0 6px}
.section-title .count{font-size:18px;opacity:.6;font-weight:normal}
.hint-line{text-align:center;opacity:.7;margin:0 0 14px;font-size:16px}

/* achievement badges */
.badgegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.badge{background:#fff;border-radius:24px;padding:20px 14px;text-align:center;box-shadow:var(--shadow);
  border:4px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(160deg,#facc15,#fb923c);
  background-origin:border-box;background-clip:padding-box,border-box}
.badge-ico{font-size:54px;line-height:1}
.badge-name{font-size:18px;font-weight:bold;margin-top:6px}
.badge-hint{font-size:13px;opacity:.7;margin-top:3px}
.badge.locked{background-image:none;background:#eef0f7;box-shadow:0 4px 0 #0001;filter:grayscale(1);opacity:.7}
.badge.locked .badge-ico{font-size:46px;opacity:.6}

/* collectible sticker friends */
.stickergrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:14px}
.sticker{background:#fff;border-radius:50% 50% 22px 22px;padding:14px 8px;text-align:center;box-shadow:var(--shadow)}
.sticker-ico{font-size:46px;line-height:1}
.sticker-name{font-size:13px;font-weight:bold;margin-top:4px}
.sticker.locked{background:#eef0f7;box-shadow:0 4px 0 #0001;opacity:.75}
.sticker.locked .sticker-ico{filter:grayscale(1) opacity(.5)}

/* badge-unlock celebration overlay */
.celebrate{position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center;
  background:rgba(31,36,64,.55);backdrop-filter:blur(2px)}
.celebrate-card{background:#fff;border-radius:30px;padding:30px 26px;text-align:center;box-shadow:var(--shadow);
  max-width:90vw;animation:pop .4s ease}
.celebrate-title{font-size:clamp(26px,6vw,38px);font-weight:bold;margin-bottom:14px}
.cb-badge{display:flex;align-items:center;gap:12px;justify-content:center;font-size:24px;font-weight:bold;margin:8px 0}
.cb-ico{font-size:50px}
.celebrate-card .btn{margin-top:16px}

/* end-of-session recap card */
.recap-stats{display:flex;gap:14px;justify-content:center;margin:6px 0 4px;flex-wrap:wrap}
.recap-stats>div{background:#f6f7ff;border-radius:16px;padding:12px 16px;min-width:86px;display:flex;flex-direction:column;align-items:center}
.recap-stats b{font-size:28px;line-height:1.1;color:var(--purple)}
.recap-stats span{font-size:13px;opacity:.7;margin-top:2px}
.recap-msg{font-size:19px;font-weight:bold;margin:14px 0 4px}

footer.tiny{text-align:center;opacity:.55;margin-top:30px;font-size:14px}