/* ==========================================================================
   BOSTON STUDY HUB ACADEMY — Tips & lifehacks (#/tips) and mini-games
   Light-theme tokens from theme-light.css. Tap targets >= 44px. No
   horizontal page scroll at 360px. Reduced motion respected.
   ========================================================================== */
.tp{min-width:0}
.tp *{min-width:0}
.tp-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.tp .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.tp .btn-sm{font-size:13px;padding:8px 13px}
.tp a:focus-visible,.tp button:focus-visible,.tp input:focus-visible,.tp select:focus-visible,.tp [tabindex]:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.tp-h2{font-family:var(--display);font-size:24px;font-weight:500;margin:0;color:var(--text)}
.tp-h3{font-family:var(--display);font-size:19px;font-weight:500;margin:0;color:var(--text)}
.tp-h4{font-size:14px;margin:14px 0 6px}
.tp-sec-h{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 14px;margin:28px 0 12px}
.tp-sec-h .mini a{color:var(--brand)}
.tp-empty{color:var(--dim);font-size:13.6px;line-height:1.55;margin:0}
div.tp-empty:not([hidden]){display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tp-label{display:block;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim-2);font-weight:700;margin:4px 0 6px}
.tp-status{min-height:1.5em;font-size:14px;line-height:1.5;margin:10px 0 0;color:var(--dim)}
.tp-status.ok{color:#0B6B4E}
.tp-status.bad{color:#B03339}
.tp-note{background:var(--amber-soft);border-left:3px solid var(--amber);border-radius:10px;padding:10px 12px;font-size:13.6px;margin:8px 0}

/* ---------------- hero ---------------- */
.tp-hero{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:end;
  padding:26px 26px 22px;border-radius:20px;margin-bottom:18px;
  background:radial-gradient(120% 140% at 0% 0%,#FFF7E3 0%,var(--brand-soft) 45%,var(--panel) 100%);
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.tp-hero h1{font-family:var(--display);font-size:clamp(28px,4vw,44px);font-weight:500;letter-spacing:-.02em;margin:4px 0 8px;color:var(--text)}
.tp-hero h1 em{font-style:italic;color:var(--brand)}
.tp-hero p{color:var(--dim);max-width:62ch;font-size:14.6px;line-height:1.6;margin:0}
.tp-hero-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tp-hero-stats{display:flex;gap:10px;margin:0}
.tp-hero-stats div{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px 14px;min-width:92px}
.tp-hero-stats dt{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim-2);font-weight:700}
.tp-hero-stats dd{margin:2px 0 0;font-family:var(--display);font-size:28px;font-weight:500;color:var(--text);font-variant-numeric:tabular-nums}

/* ---------------- habits + tip of the day ---------------- */
.tp-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:16px;align-items:start}
.tp-habits{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.tp-habit{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.tp-habit.done{background:var(--mint-soft);border-color:#C4EBDD}
.tp-habit-main{display:flex;flex-direction:column;gap:2px;flex:1 1 180px}
.tp-habit-main b{font-size:14px}
.tp-habit-btns{display:flex;gap:6px}
.tp-tick[aria-pressed="true"]{background:#E9F8F2;border-color:#9FDCC6;color:#0B6B4E;font-weight:700}
.tp-drop{min-width:44px}
.tp-list-1{list-style:none;margin:0;padding:0}
.tp-tod .tp-card{border:none;box-shadow:none;padding:0;background:none}

/* ---------------- games strip ---------------- */
.tp-strip{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.tp-game{display:flex;flex-direction:column;gap:6px;padding:14px;border-radius:16px;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.tp-game-top{display:flex;align-items:center;justify-content:space-between}
.tp-game-ico{font-size:26px;line-height:1}
.tp-game h3{font-size:15.5px;margin:2px 0 0}
.tp-game p{font-size:13px;color:var(--dim);line-height:1.45;margin:0;flex:1}
.tp-game-best{color:var(--violet)}
.tp-game .btn{align-self:flex-start}
.tp-typing{background:linear-gradient(160deg,var(--sky-soft),var(--panel) 60%);border-color:#CFE1FB}
.tp-typing-links{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.tp-chiplink{display:inline-flex;align-items:center;gap:4px;min-height:44px;padding:6px 12px;border-radius:999px;border:1px solid #CFE1FB;background:var(--panel);color:var(--sky);font-size:12.6px;font-weight:600;text-decoration:none}
.tp-chiplink:hover{border-color:var(--sky)}

/* ---------------- library ---------------- */
.tp-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:6px}
.tp-chips{display:flex;flex-wrap:wrap;gap:8px}
.tp-chip{min-height:44px;padding:8px 14px;border-radius:999px;border:1px solid var(--line-2);background:var(--panel);color:var(--dim);font-size:13.2px;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.tp-chip:hover{border-color:var(--brand-2);color:var(--text)}
.tp-chip[aria-pressed="true"]{background:var(--brand-soft);border-color:#e0aaa5;color:var(--brand)}
.tp-n{font-size:11px;color:var(--dim-2);font-weight:700;margin-left:2px}
.tp-search{flex:1 1 240px}
.tp-search .input{width:100%;min-height:44px}
.tp-count{margin:4px 0 10px}
.tp-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.tp-card{display:flex;flex-direction:column;gap:8px;padding:15px 16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);transition:border-color .15s,box-shadow .15s}
.tp-card[hidden]{display:none}
.tp-card.is-using{border-color:#e0aaa5;background:linear-gradient(160deg,var(--brand-soft),var(--panel) 50%)}
.tp-card.tp-flash{box-shadow:0 0 0 3px var(--brand-2);border-color:var(--brand)}
.tp-card-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px}
.tp-cat{font-size:11.5px;font-weight:700;letter-spacing:.04em;padding:3px 10px;border-radius:999px;background:var(--panel-2);border:1px solid var(--line);color:var(--dim)}
.tp-cat-study{color:#2c4a9a;background:var(--violet-soft);border-color:#c8d3ee}
.tp-cat-listening{color:#245FAE;background:var(--sky-soft);border-color:#CFE1FB}
.tp-cat-reading{color:#0B6B4E;background:var(--mint-soft);border-color:#C9EEDF}
.tp-cat-writing,.tp-cat-examday{color:#9A6206;background:var(--amber-soft);border-color:#F6E1B7}
.tp-cat-speaking{color:#B03339;background:var(--rose-soft);border-color:#F7CBCD}
.tp-time{font-size:12px;color:var(--dim-2);font-weight:600}
.tp-card-title{font-size:16px;line-height:1.3;margin:0;color:var(--text)}
.tp-why{font-size:13.6px;color:var(--dim);line-height:1.5;margin:0}
.tp-how{margin:0;padding-left:20px;display:grid;gap:4px;font-size:13.6px;line-height:1.5;color:var(--text)}
.tp-how li::marker{color:var(--brand);font-weight:700}
.tp-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:4px}
.tp-use[aria-pressed="true"]{background:var(--brand-soft);border-color:#e0aaa5;color:var(--brand);font-weight:700}
.tp-ext{color:var(--brand)}

/* ---------------- game shell ---------------- */
.tp-back{margin-bottom:10px}
.tp-gv-head{margin-bottom:18px}
.tp-field{display:flex;flex-direction:column;gap:4px;border:0;padding:0;margin:0}
.tp-field label,.tp-field legend{font-size:12px;font-weight:700;color:var(--dim);padding:0}
.tp-field .input{min-height:44px}
.tp-big{font-size:15px!important;padding:12px 20px!important}
.tp-bar{height:6px;border-radius:99px;background:var(--line);overflow:hidden;margin:10px 0}
.tp-bar i{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:inherit;transition:width .3s linear}
.tp-result{background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:14px;margin-top:10px}
.tp-result>b{font-size:16px}
.tp-result .row{margin-top:10px}
.tp-misses{margin:0;padding-left:18px;display:grid;gap:4px;font-size:13.6px}
.tp-stat{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 6px;border-radius:12px;background:var(--panel-2);border:1px solid var(--line)}
.tp-stat b{font-family:var(--display);font-size:28px;font-weight:500;line-height:1.05;font-variant-numeric:tabular-nums}
.tp-stat span{font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--dim-2);font-weight:700}
.tp-lead{color:var(--dim);font-size:13.6px}

/* ---------------- word search ---------------- */
.tp-ws-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:14px}
.tp-ws-controls .tp-field{flex:1 1 180px}
.tp-ws{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:16px;align-items:start}
.tp-ws-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px}
.tp-ws-bar-btns{display:flex;gap:6px;margin-left:auto}
.tp-clock{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}
.tp-ws-grid{
  --n:12;display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:3px;
  width:100%;max-width:560px;margin:0 auto;touch-action:none;user-select:none;-webkit-user-select:none;
}
.tp-cell{
  aspect-ratio:1/1;min-width:0;width:100%;padding:0;border-radius:7px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-family:var(--mono);font-weight:700;
  font-size:clamp(12px,3.6vw,19px);line-height:1;cursor:pointer;display:grid;place-items:center;
  transition:background .12s,border-color .12s;-webkit-tap-highlight-color:transparent;
}
.tp-cell:hover{border-color:var(--brand-2)}
.tp-cell.found{background:var(--mint-soft);border-color:#9FDCC6;color:#0B6B4E}
.tp-cell.revealed{background:var(--amber-soft);border-color:#F6E1B7;color:#9A6206}
.tp-cell.hint{box-shadow:inset 0 0 0 2px var(--amber)}
.tp-cell.start{background:var(--brand);border-color:var(--brand);color:#fff}
.tp-cell.sel{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.tp-cell:focus-visible{outline:3px solid var(--brand);outline-offset:1px;z-index:1;position:relative}
.tp-help{margin:10px 0 0}
.tp-clues{margin:10px 0 0;padding-left:22px;display:grid;gap:8px;font-size:13.8px;line-height:1.45}
.tp-clue{padding:4px 0}
.tp-clue::marker{color:var(--dim-2);font-weight:700}
.tp-clue-meta{display:block;font-size:11.5px;color:var(--dim-2);font-weight:700;letter-spacing:.03em}
.tp-clue-def{display:block;color:var(--text)}
.tp-clue.found .tp-clue-def{color:var(--dim)}
.tp-clue-word{text-decoration:line-through;text-decoration-color:var(--mint);text-decoration-thickness:2px;color:#0B6B4E;font-size:14.6px;text-transform:none}
.tp-clue.revealed .tp-clue-word{text-decoration:none;color:#9A6206}
.tp-clue-col{display:block;color:var(--violet)}

/* ---------------- collocation snap ---------------- */
.tp-sn-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.tp-sn-stage{padding:10px 0;min-height:220px;display:flex;flex-direction:column;justify-content:center;align-items:stretch;gap:12px}
.tp-sn-stage:focus{outline:none}
.tp-sn-stage>.btn{align-self:center}
.tp-sn-stage>.tp-lead{text-align:center;margin:0}
.tp-sn-prompt{font-family:var(--display);font-size:clamp(22px,4vw,32px);text-align:center;margin:4px 0;overflow-wrap:anywhere;color:var(--text)}
.tp-blank{display:inline-block;color:var(--brand);margin:0 .25em;letter-spacing:.05em}
.tp-sn-opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.tp-opt{min-height:56px;padding:10px 14px;border-radius:12px;border:1px solid var(--line-2);background:var(--panel);color:var(--text);font-size:15px;font-weight:600;text-align:left;cursor:pointer;display:flex;align-items:center;gap:10px;overflow-wrap:anywhere}
.tp-opt:hover:not(:disabled){border-color:var(--brand);background:var(--brand-soft)}
.tp-opt:disabled{cursor:default;opacity:1}
.tp-opt.ok{background:var(--mint-soft);border-color:#9FDCC6;color:#0B6B4E}
.tp-opt.bad{background:var(--rose-soft);border-color:#F7CBCD;color:#B03339}

/* ---------------- sprint ---------------- */
.tp-spr{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:16px;align-items:start}
.tp-spr-topic{font-family:var(--display);font-size:clamp(21px,3.2vw,28px);line-height:1.3;margin:0 0 14px;color:var(--text)}
.tp-must{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:8px}
.tp-must li{padding:9px 12px;border-radius:12px;background:var(--violet-soft);border:1px solid #c8d3ee;font-size:13.6px;line-height:1.4}
.tp-must b{color:#2c4a9a;font-size:15px;margin-right:4px}
.tp-spr-clock{text-align:center}
.tp-phase{font-weight:700;font-size:15px;margin:0 0 8px;color:var(--dim)}
.tp-spr-clock[data-phase="think"] .tp-phase{color:#9A6206}
.tp-spr-clock[data-phase="talk"] .tp-phase{color:#0B6B4E}
.tp-dial{width:150px;height:150px;margin:6px auto;border-radius:50%;display:grid;place-items:center;background:var(--panel-2);border:6px solid var(--line)}
.tp-dial span{font-family:var(--display);font-size:56px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--text)}
.tp-spr-clock[data-phase="think"] .tp-dial{border-color:#F6E1B7;background:var(--amber-soft)}
.tp-spr-clock[data-phase="talk"] .tp-dial{border-color:#9FDCC6;background:var(--mint-soft)}
.tp-spr-btns{justify-content:center;margin:8px 0}
.tp-check{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:8px 0;text-align:left}
.tp-check legend{font-weight:700;font-size:13.6px;padding:0 4px}
.tp-tick-row{display:flex;align-items:center;gap:10px;min-height:44px;font-size:14px;cursor:pointer}
.tp-tick-row input{width:20px;height:20px;accent-color:var(--brand)}

/* ---------------- speed reading ---------------- */
.tp-spd-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:10px 0}
.tp-seg label{display:flex;align-items:center;gap:8px;min-height:44px;font-size:13.6px;font-weight:500;color:var(--text);cursor:pointer}
.tp-seg input{width:18px;height:18px;accent-color:var(--brand)}
.tp-range input[type="range"]{width:100%;min-height:44px;accent-color:var(--brand)}
.tp-range output{color:var(--brand);font-weight:800}
.tp-spd-box{min-height:150px;display:grid;place-items:center;text-align:center;margin:12px 0 4px;padding:16px;border-radius:16px;background:var(--bg-2);border:1px solid var(--line)}
.tp-spd-box span{font-family:var(--display);font-size:clamp(24px,5vw,40px);line-height:1.25;color:var(--text);overflow-wrap:anywhere}
.tp-q{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:0 0 10px}
.tp-q legend{font-weight:700;font-size:14.2px;padding:0 4px}
.tp-optrow{display:flex;align-items:center;gap:10px;min-height:44px;padding:4px 6px;border-radius:9px;font-size:14px;cursor:pointer}
.tp-optrow:hover{background:var(--panel-2)}
.tp-optrow input{width:18px;height:18px;flex:none;accent-color:var(--brand)}
.tp-review{margin:8px 0;padding-left:20px;display:grid;gap:6px;font-size:13.6px}
.tp-review li.ok::marker{color:var(--mint)}
.tp-review li.bad::marker{color:var(--rose)}
.tp-full{margin:10px 0}
.tp-full summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:600;color:var(--brand);font-size:13.6px}
.tp-full p{font-family:var(--display);font-size:15.4px;line-height:1.7;margin:0 0 10px}

/* ---------------- spelling bee ---------------- */
.tp-sp-hear{margin:12px 0 6px}
.tp-clue-box{background:var(--violet-soft);border:1px solid #c8d3ee;border-radius:12px;padding:10px 12px;font-size:14px;margin:6px 0}
.tp-sp-form{margin-top:10px}
.tp-sp-form label{display:block;font-weight:700;font-size:13px;color:var(--dim);margin-bottom:6px}
.tp-sp-row{display:flex;gap:8px}
.tp-sp-row .input{flex:1;min-height:48px;font-size:18px;font-family:var(--mono);letter-spacing:.04em}
.tp-sp-row .input.ok{border-color:var(--mint);background:var(--mint-soft)}
.tp-sp-row .input.bad{border-color:var(--rose);background:var(--rose-soft)}

/* ---------------- responsive ---------------- */
@media (max-width:980px){
  .tp-top,.tp-ws,.tp-spr{grid-template-columns:minmax(0,1fr)}
  .tp-spd-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .tp-hero{grid-template-columns:minmax(0,1fr);padding:18px 16px;border-radius:16px}
  .tp-hero-stats{flex-wrap:wrap}
  .tp-hero-stats div{flex:1 1 80px;min-width:0;padding:8px 10px}
  .tp-hero-stats dd{font-size:23px}
  .tp-hero-links .btn{flex:1 1 auto}
  .tp-grid{grid-template-columns:minmax(0,1fr)}
  .tp-strip{grid-template-columns:minmax(0,1fr)}
  .tp-chip{padding:8px 12px}
  .tp-sn-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tp-sn-opts{grid-template-columns:minmax(0,1fr)}
  .tp-ws-grid{gap:2px}
  .tp-cell{border-radius:5px}
  .tp-ws-bar-btns{margin-left:0}
  .tp-sp-row{flex-direction:column}
}
@media (prefers-reduced-motion: reduce){
  .tp-chip,.tp-card,.tp-cell,.tp-bar i{transition:none!important}
}
@media print{
  .tp-games,.tp-controls,.tp-actions,.tp-hero-links,.tp-habits-card{display:none!important}
  .tp-card[hidden]{display:flex!important}
}