:root{--canvas:#000;--panel:#141414;--ink:#f5f5f5;--muted:#8c8c8c;--dim:#595959;--chip:#212121;--line:#262626;
--red:#e82126;--green:#33d64a;--yellow:#f2c71f;--bad:#240f12;--good:#0f2417;--badink:#ffb5b8;--goodink:#b8f7c4;--blue:#1f78ff;--glow:0 0 18px rgba(31,120,255,.55),0 0 2px rgba(31,120,255,.9)}
:root[data-theme=light]{--canvas:#ededed;--panel:#fff;--ink:#121212;--muted:#616161;--dim:#858585;--chip:#e6e6e6;--line:#d6d6d6;
--red:#bf1a1f;--green:#148c38;--yellow:#d99e0d;--bad:#ffe6e6;--good:#e0f5e6;--badink:#8c1419;--goodink:#0d6129;--blue:#1466eb;--glow:0 0 14px rgba(20,102,235,.35),0 0 2px rgba(20,102,235,.7)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--canvas);color:var(--ink);font:16px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
#app{max-width:760px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding-bottom:calc(76px + env(safe-area-inset-bottom))}
#bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:color-mix(in srgb,var(--canvas) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:.02em;font-size:18px;margin-right:auto}
.brand img{height:28px;width:auto;filter:drop-shadow(0 0 6px rgba(31,120,255,.6))}
.chip{background:var(--chip);border-radius:999px;padding:6px 12px;font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:55vw}
#content{flex:1;padding:16px 14px}
#dock{position:fixed;left:0;right:0;bottom:0;z-index:5;display:flex;justify-content:center;gap:6px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--canvas) 90%,transparent);backdrop-filter:blur(12px);border-top:1px solid var(--line)}
#dock button{flex:1;max-width:240px;padding:11px 0;border-radius:14px;font-weight:600;color:var(--muted);text-transform:uppercase;font-size:13px;letter-spacing:.08em}
#dock button.on{color:var(--ink);background:var(--panel);box-shadow:var(--glow);outline:1px solid var(--blue)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:12px}
.glow{box-shadow:var(--glow);border-color:var(--blue)}
.lbl{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin:0 0 6px}
h1{font-size:22px;margin:4px 0 12px}h2{font-size:18px;margin:0 0 8px}
.pick{display:flex;flex-direction:column;min-height:calc(100vh - 160px)}
.hero{display:flex;justify-content:center;padding:28px 0 22px}
.hero img{width:min(56vw,240px);height:auto;filter:drop-shadow(0 0 22px rgba(31,120,255,.6))}
.choice{display:block;width:100%;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px 18px;margin-bottom:12px;transition:box-shadow .2s}
.choice:hover,.choice:focus-visible{box-shadow:var(--glow);border-color:var(--blue);outline:0}
.choice b{display:block;font-size:18px}.choice small{color:var(--muted)}
.tag{float:right;font-size:11px;text-transform:uppercase;letter-spacing:.08em;padding:3px 8px;border-radius:999px;background:var(--chip);color:var(--muted)}
.tag.next{color:var(--blue)}
.ask-q{margin-top:auto;text-align:center;color:var(--muted);font-size:15px;padding:18px 0 4px;letter-spacing:.02em}
.link{color:var(--blue);font-weight:600;padding:10px 0}
.card{min-height:300px;display:flex;flex-direction:column;cursor:pointer}
.card .q{font-size:20px;font-weight:650;margin:6px 0 auto}
.card .hint{color:var(--dim);font-size:13px;margin-top:14px}
.ans ul{margin:6px 0;padding-left:20px}.ans li{margin:4px 0}
.info{color:var(--muted);font-size:15px;margin-top:10px}
b,strong{font-weight:700}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.btn{flex:1;min-width:90px;padding:12px 10px;border-radius:14px;background:var(--chip);font-weight:600;text-align:center}
.btn.primary{background:var(--blue);color:#fff;box-shadow:var(--glow)}
.btn:disabled{opacity:.4}
.meter{height:4px;background:var(--chip);border-radius:9px;overflow:hidden;margin:4px 0 12px}.meter i{display:block;height:100%;background:var(--blue);box-shadow:var(--glow)}
.opt{display:block;width:100%;text-align:left;padding:13px 14px;border-radius:14px;background:var(--chip);margin:8px 0;border:1px solid transparent}
.opt.sel{border-color:var(--blue)}
.opt.ok{background:var(--good);color:var(--goodink);border-color:var(--green)}
.opt.no{background:var(--bad);color:var(--badink);border-color:var(--red)}
.why{border-left:3px solid var(--blue);padding:4px 0 4px 12px;margin:12px 0;color:var(--ink)}
.src{display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;padding:12px 14px;border-radius:14px;background:var(--chip);margin-top:10px;font-size:14px}
.src span{color:var(--muted)}.src em{font-style:normal;color:var(--blue);font-weight:600}
.search{display:flex;gap:8px;margin-bottom:12px}
.search input{flex:1;font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--blue);box-shadow:var(--glow);border-radius:14px;padding:12px 14px;outline:0;min-width:0}
.hit{display:block;width:100%;text-align:left;padding:12px 14px;border-top:1px solid var(--line)}
.hit:first-of-type{border-top:0}.hit small{display:block;color:var(--muted);font-size:12px;margin-bottom:2px}
mark{background:rgba(31,120,255,.28);color:inherit;border-radius:3px;padding:0 1px}
.empty{text-align:center;color:var(--muted);padding:26px 10px}
.empty b{display:block;color:var(--ink);margin-bottom:6px}
#sheet{position:fixed;inset:0;z-index:20;background:rgba(0,0,0,.6);display:flex;justify-content:center;align-items:flex-end}
#sheet[hidden]{display:none}
.sheetin{position:relative;background:var(--canvas);width:100%;max-width:760px;max-height:92vh;overflow:auto;border-radius:22px 22px 0 0;padding:18px 14px calc(24px + env(safe-area-inset-bottom));border-top:1px solid var(--blue);box-shadow:var(--glow)}
.close{position:sticky;top:0;float:right;background:var(--chip);border-radius:999px;width:34px;height:34px;z-index:2}
.slide img{width:100%;border-radius:12px;border:1px solid var(--line);margin:8px 0;background:#fff}
.slide pre{white-space:pre-wrap;font:inherit;font-size:14px;margin:0}
.notes{color:var(--muted);font-size:14px;margin-top:8px}
.score{font-size:42px;font-weight:800;text-align:center;margin:6px 0;text-shadow:var(--glow)}
.seg{display:flex;background:var(--chip);border-radius:12px;padding:3px;margin-bottom:12px}
.seg button{flex:1;padding:8px;border-radius:10px;font-size:14px;color:var(--muted)}
.seg button.on{background:var(--panel);color:var(--ink);box-shadow:var(--glow)}
#dock[hidden],[hidden]{display:none!important}