:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#111827;--muted:#4b5563;--line:#e5e7eb;--bg:#f3f4f6;--card:#fff;--accent:#1d4ed8;--accent-soft:#eff6ff;--accent-line:#bfdbfe;--warn:#92400e;--warn-bg:#fef3c7;--warn-bar:#f59e0b;--ai:#5b21b6;--ai-bg:#ede9fe;--sap:#1e3a8a;--l0:#fff;--l1:#dbeafe;--l2:#93c5fd;--l3:#3b82f6;--l4:#1e3a8a;color:var(--ink);background:var(--bg);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}button{font-family:inherit}a{color:var(--accent)}.app{flex-direction:column;gap:14px;max-width:480px;min-height:100vh;margin:0 auto;padding:16px 16px 88px;display:flex}.row{align-items:center;gap:8px;display:flex}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.col{flex-direction:column;gap:8px;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;flex-direction:column;gap:12px;padding:16px;display:flex}.dark{background:var(--ink);color:#fff;border:0}.eyebrow{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:0;font-size:12px;font-weight:600}h1{margin:0;font-size:24px}h2{margin:0;font-size:16px}.muted{color:var(--muted);margin:0;font-size:13px}.small{font-size:12px}.pill{border:1px solid var(--line);color:#374151;background:#fff;border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:12px;font-weight:600;display:inline-flex}.pill.warn{background:var(--warn-bg);color:var(--warn);border-color:#0000}.pill.ok{background:var(--accent-soft);color:var(--sap);border-color:var(--accent-line)}.pill.ai{background:var(--ai-bg);color:var(--ai);border-color:#0000}.pill.sap{background:var(--sap);color:#fff;border-color:#0000}.dot{background:var(--accent);border-radius:999px;width:8px;height:8px;display:inline-block}.dot.off{background:#9ca3af}.dot.warn{background:var(--warn-bar)}.grid3{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.grid2{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.time-btn{min-height:76px;color:var(--ink);cursor:pointer;background:#fff;border:0;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;display:flex}.time-btn b{font-size:26px}.time-btn span{color:var(--muted);font-size:12px}.time-btn.rec{box-shadow:0 0 0 3px #60a5fa}.btn{border:1px solid var(--line);min-height:48px;color:var(--ink);cursor:pointer;background:#fff;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-size:15px;font-weight:600;text-decoration:none;display:inline-flex}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.dark{background:var(--ink);border-color:var(--ink);color:#fff}.btn.soft{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent)}.btn.ghost{color:#374151;background:0 0;border-color:#0000}.btn.big{min-height:60px;font-size:17px}.btn:disabled{opacity:.45;cursor:default}.btn.block{width:100%}.chip{color:var(--ink);cursor:pointer;background:#fff;border:1px solid #d1d5db;border-radius:10px;min-width:40px;min-height:40px;font-size:14px;font-weight:600}.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}.rings{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.ring{text-align:center;flex-direction:column;align-items:center;gap:6px;display:flex}.ring svg{width:84px;height:84px}.ring b{font-size:13px}.ring span{color:var(--muted);font-size:11px}.bar{background:var(--line);border-radius:999px;height:8px;overflow:hidden}.bar>div{background:var(--accent);border-radius:999px;height:100%;transition:width .4s}.dark .bar{background:#374151}.dark .bar>div{background:#60a5fa}.days{gap:6px;display:flex}.days i{background:var(--line);border-radius:999px;width:14px;height:14px;display:inline-block}.days i.on{background:var(--accent)}.days i.today{outline-offset:1px;outline:2px dashed #9ca3af}.nav{border-top:1px solid var(--line);background:#f3f4f6f5;position:fixed;bottom:0;left:0;right:0}.nav div{max-width:480px;padding:8px 16px calc(8px + env(safe-area-inset-bottom));grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 auto;display:grid}.nav button{border:1px solid var(--line);min-height:48px;color:var(--ink);cursor:pointer;background:#fff;border-radius:12px;font-family:inherit;font-size:15px;font-weight:600}.nav button[aria-current=page]{background:var(--ink);color:#fff;border-color:var(--ink)}.steps{gap:4px;display:flex}.steps i{background:var(--line);border-radius:999px;flex:1;height:6px}.steps i.done{background:var(--accent)}.steps i.now{background:var(--ink)}.steps i.skip{background:#9ca3af}.stepcard{border:1px solid var(--line);background:#fff;border-radius:20px;flex-direction:column;gap:16px;padding:22px 18px;display:flex}.kind{letter-spacing:.06em;text-transform:uppercase;color:var(--accent);font-size:12px;font-weight:700}.unit-title{margin:0;font-size:22px;font-weight:700}.prompt{color:#1f2937;margin:0;font-size:16px;line-height:1.45}.timer{font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}.answers{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.answers .btn{flex-direction:column;gap:2px;min-height:64px;font-size:15px}.overview{flex-direction:column;gap:6px;display:flex}.overview li{align-items:center;gap:10px;font-size:14px;list-style:none;display:flex}.overview ul{flex-direction:column;gap:8px;margin:0;padding:0;display:flex}.ov-mark{border:2px solid #d1d5db;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:12px;display:inline-flex}.ov-mark.done{background:var(--accent);border-color:var(--accent);color:#fff}.ov-mark.now{border-color:var(--ink)}.xp-big{margin:0;font-size:48px;font-weight:800;line-height:1}.change{align-items:center;gap:12px;display:flex}.lvl{border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:30px;font-size:12px;font-weight:700;display:inline-flex}.station{cursor:pointer;text-align:left;width:100%;color:inherit;background:0 0;border:0;border-radius:12px;align-items:stretch;gap:12px;padding:0 8px;font-family:inherit;display:flex}.station.sel{box-shadow:0 0 0 1px var(--accent-line);background:#fff}.rail{flex-direction:column;flex-shrink:0;align-items:center;width:44px;display:flex}.rail i{background:#9ca3af;width:4px}.rail i.top{height:10px}.rail i.bot{flex:1;min-height:10px}.rail i.none{background:0 0}.node{border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;font-size:12px;font-weight:700;display:flex}.st-body{flex-direction:column;flex:1;gap:3px;padding:10px 0;display:flex}.tag{background:var(--ink);color:#fff;border-radius:4px;padding:1px 6px;font-size:10px;font-weight:700}.lessons{flex-wrap:wrap;gap:6px;display:flex}.dashed{border:2px dashed #d1d5db;border-radius:14px;flex-direction:column;gap:6px;padding:12px 14px;display:flex}.banner{border-radius:12px;padding:10px 14px;font-size:13px}.banner.warn{background:var(--warn-bg);color:var(--warn)}.banner.dark{background:var(--ink);color:#fff;justify-content:space-between;align-items:center;gap:8px;display:flex}textarea,input[type=text],input[type=date]{width:100%;color:var(--ink);background:#fff;border:1px solid #d1d5db;border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px}textarea{min-height:96px;font-family:ui-monospace,Menlo,monospace;font-size:12px}label.field{flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.hist{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.hist li{justify-content:space-between;align-items:center;gap:8px;font-size:13px;display:flex}.hist .gone{color:#9ca3af;text-decoration:line-through}.rubric{flex-direction:column;gap:8px;display:flex}.rubric .row{justify-content:space-between}.rubric .chip{min-width:36px;min-height:36px}.visually-hidden{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.hero{background:var(--ink);color:#fff;border-radius:20px;flex-direction:column;align-items:center;gap:14px;padding:20px;display:flex}.hero .sub{color:#d1d5db;text-align:center;margin:0;font-size:13px}.big-ring{width:168px;height:168px}.tiles{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.tile{border:1px solid var(--line);background:#fff;border-radius:14px;flex-direction:column;gap:6px;padding:12px;display:flex}.tile b{font-size:20px}.tile span{color:var(--muted);font-size:12px}.week{align-items:center;gap:8px;display:flex}.week i{background:var(--line);border-radius:999px;width:18px;height:18px;display:inline-block}.week i.half{background:var(--l2)}.week i.full{background:var(--accent)}.week i.today{outline-offset:2px;outline:2px dashed #9ca3af}.qcard{border:1px solid var(--line);background:#fff;border-radius:20px;flex-direction:column;gap:16px;padding:22px 18px;display:flex}.qtext{margin:0;font-size:19px;font-weight:600;line-height:1.4}.answer-box{background:var(--accent-soft);border:1px solid var(--accent-line);color:#1f2937;border-radius:14px;padding:14px;font-size:16px;line-height:1.5}.opt{text-align:left;min-height:56px;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #d1d5db;border-radius:12px;padding:12px 14px;font-family:inherit;font-size:15px;line-height:1.35}.opt.correct{background:#ecfdf5;border:2px solid #059669}.opt.correct:after{content:" ✓";color:#059669;font-weight:700}.opt.wrong{background:#fef2f2;border:2px solid #dc2626}.opt.wrong:after{content:" ✗";color:#dc2626;font-weight:700}.answer-box.ok{background:#ecfdf5;border-color:#a7f3d0}.answer-box.bad{background:#fef2f2;border-color:#fecaca}.opt:disabled{cursor:default;opacity:1}.rate{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.rate .btn{flex-direction:column;gap:2px;min-height:60px;padding:0 8px;font-size:15px}.unit-card{border:1px solid var(--line);background:#fff;border-radius:16px;flex-direction:column;gap:10px;padding:14px 16px;display:flex}.lesson-row{border-top:1px solid #f3f4f6;align-items:center;gap:12px;min-height:52px;display:flex}.check{color:#fff;cursor:pointer;background:#fff;border:2px solid #9ca3af;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;font-weight:800;display:inline-flex}.check.on{background:var(--accent);border-color:var(--accent)}.lesson-row a{color:var(--ink);flex:1;font-size:14px;line-height:1.3;text-decoration:none}.lesson-row a span{color:var(--accent);white-space:nowrap}.iconbtn{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex}.celebrate{background:var(--ink);color:#fff;text-align:center;border-radius:20px;flex-direction:column;align-items:center;gap:12px;padding:28px 20px;display:flex}.nav.two div{grid-template-columns:repeat(2,minmax(0,1fr))}html{scrollbar-gutter:stable;overflow-y:scroll}.page-header{justify-content:space-between;align-items:flex-start;gap:12px;min-height:64px;display:flex}.page-header h1{line-height:1.2}.page-header .pill{white-space:nowrap}.tiles.plain .tile{border:0;gap:2px;padding:0}.tiles.plain small{font-size:12px}.pill.run{color:#047857;background:#ecfdf5;border-color:#a7f3d0}.celebrate-score{color:#fff;margin:0;font-size:18px}.celebrate-score b{font-size:32px}.seg{background:#e5e7eb;border-radius:12px;grid-template-columns:1fr 1fr;gap:4px;padding:4px;display:grid}.seg button{min-height:40px;color:var(--ink);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:9px;font-size:14px;font-weight:600}.seg button[aria-selected=true]{background:#fff;box-shadow:0 1px 2px #00000014}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 12px;display:grid}.stat{flex-direction:column;gap:1px;min-width:0;display:flex}.stat span{color:var(--muted);font-size:12px}.stat b{font-size:22px}.stat small{font-size:12px}.iconbtn:disabled{opacity:.35;cursor:default}.iconbtn{color:var(--ink);font-family:inherit;font-size:22px}.log{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.log li{border-top:1px solid var(--line);gap:10px;padding:10px 0;font-size:14px;line-height:1.4;display:flex}.log li:first-child{border-top:0;padding-top:0}.log .mark{border-radius:999px;flex:none;justify-content:center;align-items:center;width:22px;height:22px;font-size:12px;font-weight:700;display:inline-flex}.log .ok .mark{color:#047857;background:#ecfdf5}.log .bad .mark{color:#b91c1c;background:#fef2f2}.log .txt{flex-direction:column;gap:2px;min-width:0;display:flex}.tag.soft{color:#374151;background:#f3f4f6;margin-left:6px;font-weight:600}.chart svg{width:100%;height:auto;display:block}.legend{color:#374151;align-items:center;gap:12px;margin-bottom:6px;display:flex}.legend i{vertical-align:-1px;border-radius:3px;width:10px;height:10px;margin-right:4px;display:inline-block}.btn.danger{color:#fff;background:#b91c1c;border-color:#b91c1c}.btn.danger-soft{color:#b91c1c;background:#fff;border-color:#fecaca}.linkbtn{color:var(--accent);font:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-weight:600;text-decoration:underline}.right-answer{color:#047857;font-size:13px}