@import"https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Lora:ital,wght@0,400;0,600;1,400;1,600&display=swap";*,*:before,*:after{box-sizing:border-box}html{font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0}:root{--color-gold:#F5A623;--color-gold-light:#FDE8C0;--color-gold-pale:#FFF8ED;--color-gold-ink:#b9791a;--color-green:#4CAF82;--color-green-light:#D6F0E4;--color-green-pale:#F0FAF4;--color-green-ink:#2f8a63;--color-blue:#5B9BD5;--color-blue-light:#D4E8F7;--color-blue-pale:#EBF4FD;--color-ink:#1A2332;--color-ink-soft:#4A5568;--color-ink-muted:#8A95A3;--color-white:#FFFFFF;--color-bg:#FAFBF8;--color-border:#E8EDE6;--color-navy:#0D1E3E;--color-navy-mid:#1A2332;--font-display:"Lora",Georgia,serif;--font-body:"Nunito",system-ui,sans-serif;--english:#5B9BD5;--english-deep:#3E7CB8;--english-pale:#EBF4FD;--english-line:#D4E8F7;--sk-grammar:#5B9BD5;--sk-grammar-tint:#EAF3FB;--sk-vocab:#E0913C;--sk-vocab-tint:#FBF1E3;--sk-comp:#7C6BC9;--sk-comp-tint:#F1EEFA;--sk-synth:#3FA98A;--sk-synth-tint:#E8F6F0;--sk-edit:#C85C3A;--sk-edit-tint:#FAECE8;--m0:#C7D0CB;--m1:#9BC6AE;--m2:#6FBF93;--m3:#4CAF82;--m4:#2E9466;--m5:#1B7A4F;--garden-sky:linear-gradient(180deg,#F2FAF5 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var(--ease-out);width:100%;display:flex;align-items:center;gap:12px}.opt:hover:not(:disabled){border-color:#cfe1f5;background:var(--color-white)}.opt:disabled{cursor:default}.opt.correct{border-color:var(--color-green);background:linear-gradient(135deg,var(--color-green-light),var(--color-green-pale));color:#1b5e34}.opt.wrong{border-color:#ef9a9a;background:linear-gradient(135deg,#fce4e8,#fef2f4);color:#b71c1c}.opt.dimmed{opacity:.38}.btn-primary{background:var(--color-gold);color:var(--color-white);border:none;border-radius:var(--radius-xl);padding:14px 32px;font-family:var(--font-body);font-size:1rem;font-weight:800;cursor:pointer;transition:all var(--dur) var(--ease-out);box-shadow:var(--shadow-gold);width:100%;display:flex;align-items:center;justify-content:center;gap:8px}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px #f5a62380}.btn-primary:disabled{background:#eadfce;color:#fff;box-shadow:none;cursor:not-allowed}.btn-ghost{background:transparent;border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:6px 18px;cursor:pointer;font-family:var(--font-body);font-size:.82rem;font-weight:700;color:var(--color-ink-soft);transition:all var(--dur) var(--ease-out)}.btn-ghost:hover{border-color:var(--english);color:var(--english)}.input{width:100%;padding:13px 16px;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-body);font-size:.95rem;color:var(--color-ink);outline:none;transition:all var(--dur) var(--ease-out);background:var(--color-white)}.input:focus{border-color:var(--english);box-shadow:0 0 0 4px #5ba4e826}.lvl-card{background:var(--color-white);border:1.5px solid var(--color-border);border-left:4px solid var(--english);border-radius:var(--radius-md);padding:14px 13px 13px;cursor:pointer;transition:all var(--dur) var(--ease-out);text-align:left;position:relative;display:flex;flex-direction:column;min-height:110px}.lvl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#d4e8f7;border-left-color:var(--english)}.card{background:var(--color-white);border-radius:var(--radius-md);padding:16px 18px;border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.shake{animation:shake .45s ease}.eyebrow{display:inline-block;font-family:var(--font-body);font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:5px 13px;border-radius:var(--radius-full);background:var(--color-blue-light);color:var(--color-blue)}.topic-pill{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:800;color:#2f6fb0;background:var(--color-blue-pale);border:1px solid var(--color-blue-light);padding:4px 11px;border-radius:var(--radius-full)}:root{--lane:var(--english);--lane-deep:var(--english-deep);--lane-pale:var(--english-pale);--lane-line:var(--english-line)}@keyframes spg-fadeup{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@keyframes spg-sheet{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes spg-fade{0%{opacity:0}to{opacity:1}}@keyframes spg-blink{0%,to{opacity:1}50%{opacity:.4}}.spg-reveal{animation:spg-rise-soft .5s var(--ease-out) both}@media(prefers-reduced-motion:reduce){.spg-reveal{animation:none}}.app{position:fixed;inset:0;display:flex;background:var(--color-bg);color:var(--color-ink);font-family:var(--font-body)}.app-scroll{flex:1;min-width:0;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth}.app-scroll::-webkit-scrollbar{width:10px}.app-scroll::-webkit-scrollbar-thumb{background:#dde2e9;border-radius:9px;border:3px solid transparent;background-clip:content-box}.app-scroll::-webkit-scrollbar-track{background:transparent}.noscroll::-webkit-scrollbar{width:0;height:0}.noscroll{scrollbar-width:none;-ms-overflow-style:none}.app[data-mode=mobile]{flex-direction:column}.app[data-mode=mobile] .main{flex:1;min-height:0;display:flex;flex-direction:column}.tabbar{display:flex;align-items:stretch;gap:2px;padding:8px 8px calc(8px + env(safe-area-inset-bottom,0));background:#fffffff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--color-border);flex-shrink:0;z-index:40}.tab{flex:1;border:none;background:none;cursor:pointer;font-family:var(--font-body);display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 4px 6px;border-radius:14px;color:var(--color-ink-muted);transition:color var(--dur) var(--ease-out),background var(--dur) var(--ease-out)}.tab .ic{width:24px;height:24px;display:grid;place-items:center}.tab .lb{font-size:.66rem;font-weight:800;letter-spacing:.01em}.tab.on{color:var(--color-ink)}.tab.on .ic{color:var(--color-gold)}.tab:not(.on):active{background:#f1f3f7}.rail{width:248px;flex-shrink:0;background:#fff;border-right:1px solid var(--color-border);display:flex;flex-direction:column;padding:22px 16px;gap:6px;z-index:30}.app[data-mode=tablet] .rail{width:212px;padding:20px 12px}.rail-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 18px}.rail-brand img{height:30px;width:auto}.rail-brand .n{font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:var(--color-ink);line-height:1}.rail-brand .n small{display:block;font-family:var(--font-body);font-size:.6rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--color-ink-muted);margin-top:3px}.rail-item{display:flex;align-items:center;gap:13px;padding:11px 13px;border:none;background:none;cursor:pointer;border-radius:14px;font-family:var(--font-body);font-weight:800;font-size:.92rem;color:var(--color-ink-soft);text-align:left;width:100%;transition:all var(--dur) var(--ease-out)}.rail-item .ic{width:22px;height:22px;display:grid;place-items:center;flex-shrink:0;color:var(--color-ink-muted)}.rail-item .badge{margin-left:auto;font-size:.66rem;font-weight:900;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:var(--color-gold);color:#fff;display:grid;place-items:center}.rail-item:hover{background:#f6f8f5;color:var(--color-ink)}.rail-item.on{background:var(--color-gold-pale);color:var(--color-ink)}.rail-item.on .ic{color:var(--color-gold)}.rail-spacer{flex:1}.rail-user{display:flex;align-items:center;gap:11px;padding:11px 10px;border-radius:14px;cursor:pointer;border:1px solid var(--color-border);background:#fff;width:100%;text-align:left;transition:all var(--dur) var(--ease-out)}.rail-user:hover{border-color:#dbe2da;background:#fafbf8}.content{width:100%;margin-inline:auto;padding:0}.app[data-mode=desktop] .content{max-width:1080px;padding:36px 40px 56px}.app[data-mode=tablet] .content{max-width:760px;padding:28px 28px 48px}.app[data-mode=mobile] .content{max-width:520px;padding:14px 16px 24px}.spg-topbar{position:sticky;top:0;z-index:35;display:flex;align-items:center;gap:10px;padding:12px 14px;background:#fafbf8eb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border)}.iconbtn{width:38px;height:38px;flex-shrink:0;border-radius:50%;border:1px solid var(--color-border);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--color-ink-soft);transition:all var(--dur) var(--ease-out)}.iconbtn:hover{border-color:#d8dfd6;color:var(--color-ink)}.spg-eyebrow{display:inline-block;font-family:var(--font-body);font-size:.7rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:5px 12px;border-radius:var(--radius-full);background:var(--lane-pale);color:var(--lane-deep)}.spg-eyebrow.gold{background:var(--color-gold-light);color:var(--color-gold-ink)}.spg-eyebrow.green{background:var(--color-green-light);color:var(--color-green-ink)}.spg-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;white-space:nowrap;font-family:var(--font-body);font-weight:800;font-size:1.02rem;border:none;cursor:pointer;padding:15px 20px;border-radius:var(--radius-xl);background:var(--color-gold);color:#fff;box-shadow:var(--shadow-gold);transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out)}.spg-btn:hover{transform:translateY(-2px);box-shadow:0 9px 28px #f5a62380}.spg-btn:active{transform:translateY(0)}.spg-btn .ar{transition:transform var(--dur) var(--ease-out)}.spg-btn:hover .ar{transform:translate(4px)}.spg-btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#fff;border:1.5px solid var(--color-border);border-radius:var(--radius-xl);padding:11px 18px;font-family:var(--font-body);font-size:.84rem;font-weight:800;color:var(--color-ink-soft);cursor:pointer;transition:all var(--dur) var(--ease-out)}.spg-btn-ghost:hover{border-color:var(--lane);color:var(--lane-deep)}.spg-card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.spg-input{width:100%;padding:14px 16px;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-body);font-size:1rem;font-weight:600;color:var(--color-ink);outline:none;background:#fff;transition:all var(--dur) var(--ease-out)}.spg-input:focus{border-color:var(--lane);box-shadow:0 0 0 4px #5b9bd529}.sec-title{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;color:var(--color-ink)}.subj-card{position:relative;text-align:left;cursor:pointer;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#fff;transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out),border-color var(--dur) var(--ease-out)}.subj-card.live:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.subj-card.soon{cursor:default}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.app[data-mode=desktop] .grid-2{gap:16px}.app[data-mode=desktop] .grid-home{display:grid;grid-template-columns:1.55fr 1fr;gap:20px;align-items:start}.app[data-mode=mobile] .grid-home,.app[data-mode=tablet] .grid-home{display:flex;flex-direction:column;gap:16px}.scrim{position:absolute;inset:0;background:#0d1e3e73;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:60;animation:spg-fade .2s ease both}.sheet{position:absolute;left:0;right:0;bottom:0;z-index:61;background:#fff;border-radius:26px 26px 0 0;box-shadow:var(--shadow-lg);padding:10px 16px calc(20px + env(safe-area-inset-bottom,0));max-height:88%;overflow-y:auto;animation:spg-sheet .42s var(--ease-out) both}.app[data-mode=desktop] .sheet,.app[data-mode=tablet] .sheet{inset:50% auto auto 50%;transform:translate(-50%,-50%);width:min(440px,90%);border-radius:24px;max-height:84%;animation:spg-pop-soft .3s var(--ease-out) both,spg-fade .2s ease both}.grab{width:40px;height:5px;border-radius:9px;background:#e2e6ec;margin:4px auto 12px}