:root{--bg: #faf6f0;--card: #ffffff;--ink: #1c1917;--text: var(--ink);--muted: #78716c;--line: #e7e0d6;--field: #f6f1ea;--accent: #b45309;--good: #15803d;--bad: #b91c1c;--warn-bg: #fef3c7;--warn-text: #92400e;--shadow: 0 1px 2px rgba(28, 25, 23, .06), 0 8px 24px -16px rgba(28, 25, 23, .25);--radius: 18px;color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #14110f;--card: #1f1b18;--ink: #f5f0e8;--muted: #a8a29e;--line: #2e2825;--field: #171412;--warn-bg: #3a2a0a;--warn-text: #fcd34d;--shadow: none}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font:16px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif;-webkit-text-size-adjust:100%}button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}input,select,textarea{font:inherit;color:inherit}a{color:var(--accent)}p,h1,h2,h3{margin:0}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.app{max-width:640px;margin:0 auto;min-height:100dvh;padding-bottom:calc(80px + env(safe-area-inset-bottom))}.topbar{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:calc(10px + env(safe-area-inset-top)) 16px 10px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.brand{font-weight:900;letter-spacing:-.03em;font-size:18px;display:flex;align-items:center;gap:8px}.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent)}.content{padding:14px 16px}.who{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;max-width:70%}.who::-webkit-scrollbar{display:none}.who button{border:1.5px solid var(--line);background:var(--card);border-radius:999px;padding:5px 10px 5px 5px;display:flex;align-items:center;gap:6px;font-weight:700;font-size:13px;white-space:nowrap;color:var(--muted)}.who button.on{border-color:var(--c);color:var(--ink);background:color-mix(in srgb,var(--c) 12%,var(--card))}.avatar{width:24px;height:24px;border-radius:50%;background:var(--c, var(--accent));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;flex:none}.avatar.lg{width:44px;height:44px;font-size:18px}.seg{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:3px;gap:3px}.seg button{border:0;background:transparent;padding:8px 12px;border-radius:999px;font-weight:700;font-size:14px;white-space:nowrap;color:var(--muted)}.seg button.on{background:var(--accent);color:#fff}.seg.wide{display:flex;width:100%}.seg.wide button{flex:1}.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:6;display:flex;justify-content:center;background:color-mix(in srgb,var(--card) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.tabbar button{flex:1;max-width:128px;border:0;background:none;padding:8px 0 9px;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;font-weight:600;color:var(--muted)}.tabbar button.on{color:var(--accent);font-weight:800}.ti{font-size:21px;line-height:1}.stack{display:flex;flex-direction:column;gap:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow)}.card.current{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.card.hero{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 16%,var(--card)),var(--card) 70%)}.card.tint{background:color-mix(in srgb,var(--accent) 8%,var(--card))}.row{display:flex;align-items:center;gap:10px}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.h1{font-size:26px;font-weight:900;letter-spacing:-.03em;line-height:1.15}.h2{font-size:22px;font-weight:800;letter-spacing:-.02em}.h3{font-size:17px;font-weight:800;letter-spacing:-.01em}.eyebrow{font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:800}.small{font-size:13px}.tiny{font-size:12px}.muted{color:var(--muted)}.good{color:var(--good);font-weight:700}.bad{color:var(--bad);font-weight:700}.err{color:var(--bad);font-size:14px;margin:0}.pill{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:800;white-space:nowrap}.pill.neutral{background:var(--field);color:var(--muted)}.pill.good{background:color-mix(in srgb,var(--good) 15%,transparent);color:var(--good)}.chip{border:1.5px solid var(--line);background:var(--card);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700;color:var(--ink)}.chip.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--card));color:var(--accent)}.chips{display:flex;gap:6px;flex-wrap:wrap}.bar{height:8px;background:var(--line);border-radius:99px;overflow:hidden}.bar>div{height:100%;background:var(--accent);border-radius:99px;transition:width .4s}.bar.good>div{background:var(--good)}.note{font-size:14px;padding:9px 11px;border-radius:12px;background:color-mix(in srgb,var(--accent) 10%,transparent)}.note.warn{background:var(--warn-bg);color:var(--warn-text)}.note.good{background:color-mix(in srgb,var(--good) 14%,transparent)}.banner{padding:10px 12px;border-radius:12px;font-weight:700}.banner.ok{background:color-mix(in srgb,var(--good) 18%,transparent);color:var(--good)}.banner.bad{background:color-mix(in srgb,var(--bad) 15%,transparent);color:var(--bad)}.dots{display:flex;gap:5px}.dots i{width:12px;height:12px;border-radius:50%;background:var(--line);display:inline-block}.dots i.on{background:var(--accent)}.dots i.good{background:var(--good)}.ring{position:relative;width:64px;height:64px;flex:none}.ring svg{transform:rotate(-90deg)}.ring .lbl{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:900;font-size:15px;line-height:1}.ring .lbl small{font-size:9px;color:var(--muted);font-weight:700;margin-top:2px}.slots{display:flex;gap:8px}.slot{flex:1;border:2px solid var(--line);border-radius:14px;padding:12px 8px;background:var(--field);font-weight:800;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:14px}.slot small{font-weight:600;color:var(--muted);font-size:11px}.slot.on{border-color:var(--good);background:color-mix(in srgb,var(--good) 14%,var(--card));color:var(--good)}.cue{font-size:14px;background:var(--field);border:1px dashed var(--line);border-radius:10px;padding:8px 10px}.suggest{font-size:14px;font-weight:700;color:var(--accent)}.suggest.up{color:var(--good)}.chev{color:var(--muted);font-size:14px}.sets{display:flex;flex-direction:column;gap:6px;margin-top:2px}.setrow{display:flex;align-items:center;gap:6px}.setrow.done{opacity:.72}.setno{width:22px;text-align:center;font-weight:800;color:var(--muted);font-size:14px}.fld{display:flex;align-items:center;background:var(--field);border:1px solid var(--line);border-radius:10px;padding:0 8px;flex:1;min-width:0}.fld input{border:0;background:transparent;width:100%;min-width:0;padding:10px 0;font-size:17px;font-weight:700;outline:none}.fld span{font-size:12px;color:var(--muted)}.bench .fld{flex:0 0 120px}.form{border:1px solid var(--line);background:var(--field);border-radius:10px;padding:9px 6px;font-size:12px;color:var(--good);white-space:nowrap;font-weight:700}.form.bad{color:var(--bad);border-color:var(--bad)}.check{width:44px;height:42px;border-radius:10px;border:2px solid var(--line);background:var(--field);font-size:18px;font-weight:800;color:var(--muted);flex:none}.check.on{background:var(--good);border-color:var(--good);color:#fff}.input{width:100%;border:1px solid var(--line);background:var(--field);border-radius:12px;padding:11px 12px;font-size:16px}.input:focus{outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:1px}.lbl{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);font-weight:600}.lbl .input{color:var(--text);font-weight:500}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}input[type=range]{width:100%;accent-color:var(--accent)}input[type=color]{width:44px;height:32px;border:0;background:none;padding:0}.btn{border:1.5px solid var(--line);background:var(--card);border-radius:13px;padding:12px 14px;font-weight:800}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn.small{padding:7px 11px;font-size:13px;border-radius:10px}.btn.wide{width:100%}.btn.good{background:var(--good);border-color:var(--good);color:#fff}.btn:disabled{opacity:.5}.link{border:0;background:none;color:var(--accent);padding:0;font-size:14px;text-align:left;font-weight:700}.link.danger{color:var(--bad)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stats.two{grid-template-columns:1fr 1fr}.stat{background:var(--field);border-radius:12px;padding:8px 10px}.stat .h2{font-size:18px}.chart{height:220px;position:relative}.chart.short{height:150px}.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th{text-align:left;font-size:12px;color:var(--muted);font-weight:700;padding:4px 4px 6px;border-bottom:1px solid var(--line)}.tbl td{padding:8px 4px;border-bottom:1px solid var(--line);vertical-align:top}.list{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:4px}.card ul.list li.row{list-style:none;margin-left:-18px}.rules{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:14px}details summary{cursor:pointer;font-weight:700;font-size:14px;padding:4px 0}.hist{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:8px}.heat{display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,11px);gap:3px;overflow-x:auto;padding-bottom:4px}.heat i{width:11px;height:11px;border-radius:3px;background:var(--line);display:block}.heat i.l1{background:color-mix(in srgb,var(--accent) 35%,var(--line))}.heat i.l2{background:color-mix(in srgb,var(--accent) 70%,var(--line))}.heat i.l3{background:var(--accent)}.heat i.future{opacity:.35}.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.badge{background:var(--field);border-radius:14px;padding:10px 8px;text-align:center;display:flex;flex-direction:column;gap:2px;align-items:center}.badge .em{font-size:26px}.badge .t{font-size:12px;font-weight:800;line-height:1.2}.badge.locked{opacity:.4;filter:grayscale(1)}.photos{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.photos figure{margin:0;position:relative;aspect-ratio:3/4;border-radius:10px;overflow:hidden;background:var(--field)}.photos img{width:100%;height:100%;object-fit:cover;display:block}.photos figcaption{position:absolute;left:0;right:0;bottom:0;font-size:11px;font-weight:700;padding:3px 6px;background:linear-gradient(transparent,#0009);color:#fff}.compare{display:grid;grid-template-columns:1fr 1fr;gap:6px}.compare figure{margin:0;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--field);position:relative}.compare img{width:100%;height:100%;object-fit:cover}.compare figcaption{position:absolute;top:6px;left:6px;background:#0000008c;color:#fff;font-size:11px;font-weight:800;padding:2px 7px;border-radius:999px}.feed{display:flex;flex-direction:column;gap:0}.feed li{list-style:none;display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);align-items:flex-start}.feed li:last-child{border-bottom:0}.feed .when{font-size:11px;color:var(--muted);font-weight:700;white-space:nowrap;margin-top:3px}.feed .what{font-size:14px;flex:1}.restbar{position:fixed;left:12px;right:12px;bottom:calc(80px + env(safe-area-inset-bottom));z-index:7;max-width:616px;margin:0 auto;background:var(--ink);color:var(--bg);border-radius:14px;padding:12px 16px;display:flex;align-items:center;gap:12px;overflow:hidden}.restbar b{font-size:22px}.restbar .small{margin-left:auto;opacity:.7}.restfill{position:absolute;left:0;bottom:0;height:4px;background:var(--accent);transition:width .25s linear}.fab{position:fixed;right:16px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:7;width:56px;height:56px;border-radius:50%;border:0;background:var(--ink);color:var(--bg);font-size:24px;box-shadow:0 10px 24px -8px #00000073;display:flex;align-items:center;justify-content:center}.sheet-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:20;display:flex;align-items:flex-end;justify-content:center}.sheet{background:var(--bg);width:100%;max-width:640px;max-height:92dvh;border-radius:22px 22px 0 0;padding:12px 16px calc(16px + env(safe-area-inset-bottom));overflow-y:auto;display:flex;flex-direction:column;gap:10px}.sheet .grab{width:40px;height:4px;border-radius:2px;background:var(--line);margin:0 auto 4px}.toast{position:fixed;left:16px;right:16px;top:calc(12px + env(safe-area-inset-top));z-index:30;max-width:608px;margin:0 auto;background:var(--card);border:1.5px solid var(--accent);border-radius:16px;padding:12px 14px;box-shadow:0 16px 40px -12px #0006;display:flex;gap:12px;align-items:center;animation:pop .35s ease-out}.toast .em{font-size:30px}@keyframes pop{0%{transform:translateY(-20px) scale(.96);opacity:0}to{transform:none;opacity:1}}.bubble{padding:10px 12px;border-radius:14px;font-size:14.5px;max-width:92%;white-space:pre-wrap}.bubble.me{align-self:flex-end;background:var(--accent);color:#fff}.bubble.ai{align-self:flex-start;background:var(--card);border:1px solid var(--line)}.mic{width:46px;height:46px;border-radius:50%;border:1.5px solid var(--line);background:var(--card);font-size:20px;flex:none}.mic.on{background:var(--bad);border-color:var(--bad);color:#fff;animation:pulse 1s infinite}@keyframes pulse{50%{transform:scale(1.08)}}.center-screen{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center}.login h1{margin:0}.login .btn{max-width:300px;display:flex;align-items:center;justify-content:center;gap:10px}.logo{width:84px;height:84px;border-radius:22px}.gbtn{width:100%}.learning-invite{border-left:4px solid var(--accent)}.learning-invite .btn{align-self:flex-start;min-height:44px}.learn-back{min-height:44px;align-self:flex-start;display:flex;align-items:center}.form-toggle{display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--field);color:var(--accent);font-size:14px;font-weight:750;text-align:left}.form-guide{padding:4px 0}.exercise-visual{margin:0;display:flex;flex-direction:column;gap:8px}.exercise-visual>svg{width:100%;height:auto;display:block;overflow:visible}.visual-labels{display:grid;grid-template-columns:1fr 1fr;gap:16px;font-size:13px;line-height:1.4}.visual-labels span{display:flex;align-items:baseline;gap:5px}.visual-labels b{color:var(--accent)}.form-steps{font-size:14px;padding-left:23px}.form-steps li{padding-left:2px;margin-bottom:8px}.form-guide .note{font-size:13px;font-weight:400}.form-guide .note b{display:block;margin-bottom:4px}.library-exercise>summary,.lesson>summary{display:flex;align-items:center;gap:12px;min-height:54px;padding:0;list-style:none}.library-exercise>summary::-webkit-details-marker,.lesson>summary::-webkit-details-marker{display:none}.library-exercise>summary:after,.lesson>summary:after{content:"+";font-size:22px;color:var(--accent);margin-left:auto;padding-left:4px}.library-exercise[open]>summary:after,.lesson[open]>summary:after{content:"−"}.library-exercise[open]>summary,.lesson[open]>summary{padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px}.lesson-subtitle{display:block;font-weight:400;margin-top:2px}.lesson-number,.exercise-thumb{background:var(--field);border-radius:12px;color:var(--accent);width:38px;height:42px;flex:none;display:grid;place-items:center;font-size:14px;font-weight:800}.exercise-thumb{font-size:25px}.lesson-body{font-size:15px;gap:18px;padding-top:4px;line-height:1.6}.lesson-body .h3{margin-bottom:5px}.source-links{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:10px;font-size:12px}.source-links a{display:flex;align-items:center;min-height:44px;text-underline-offset:3px}.public-guide{max-width:640px;padding:20px 16px 40px;margin:0 auto}.login-orientation{max-width:340px;padding:16px;border-top:1px solid var(--line);margin-top:6px;font-size:14px}.login-orientation p{margin-top:6px;color:var(--muted)}.tour-dialog{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:transparent;color:var(--ink);overflow:hidden}.tour-dialog::backdrop{background:transparent}.tour-spotlight{position:fixed;border:3px solid var(--accent);border-radius:14px;box-shadow:0 0 0 150vmax #000000a6;pointer-events:none}.tour-shade{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6}.tour-card{position:absolute;width:min(440px,calc(100% - 32px));left:50%;top:45%;transform:translate(-50%,-50%);max-height:calc(100dvh - 190px);overflow-y:auto;padding:20px;gap:12px;box-shadow:0 20px 70px #0000004d}.tour-card.below-header{top:max(100px,calc(env(safe-area-inset-top) + 86px));transform:translate(-50%);max-height:calc(100dvh - 190px)}.tour-card .h2{line-height:1.2}.tour-card .note{line-height:1.5}.tour-icon{font-size:32px;line-height:1.1}.tour-dots{display:flex;justify-content:center;gap:6px;margin:3px 0}.tour-dots i{width:6px;height:6px;border-radius:50%;background:var(--line)}.tour-dots i.on{width:20px;border-radius:4px;background:var(--accent)}@media (max-height: 650px){.tour-card{font-size:14px;gap:8px;padding:14px}.tour-icon{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media (max-width: 380px){.seg button{padding:6px 9px;font-size:13px}.form{font-size:11px;padding:9px 4px}.badges{grid-template-columns:repeat(2,1fr)}}
