:root{color:#101828;font-synthesis:none;text-rendering:optimizelegibility;--green:#8b0000;--green-dark:#5f0000;--green-soft:#8b00001f;--blue:#19aee7;--blue-dark:#0b82b7;--orange:#ff9600;--red:#ff4b4b;--purple:#8b0000;--ink:#101828;--muted:#4c5563;--line:#ffffff94;--panel:#ffffff9e;--shadow:#374e692e;--glass-border:#ffffffc2;--glass-highlight:#ffffffe6;--liquid-bg:#ffffff70;--liquid-bg-strong:#ffffffa8;--liquid-shadow:0 12px 28px #5f00001c, 0 1px 5px #0f172a0f;background:#dff3ff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:#fff1f2;min-width:320px;margin:0;overflow-y:auto}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.app-shell,.theme-flame-frame,.theme-space-theme{min-height:100vh;color:var(--ink);background:radial-gradient(circle at 12% 24%,#8b000057,#0000 26%),radial-gradient(circle at 44% 62%,#be123c42,#0000 28%),radial-gradient(circle at 74% 28%,#ffb7c575,#0000 24%),radial-gradient(circle at 90% 70%,#5f000042,#0000 28%),linear-gradient(135deg,#fff7f7 0%,#ffe4e6 42%,#f7d1d5 100%)}.theme-flame-frame{--green:#8b0000;--green-dark:#5f0000;--green-soft:#8b00001f}.theme-space-theme{--green:#8b0000;--green-dark:#5f0000;--green-soft:#8b00001f;background:radial-gradient(circle at 12% 24%,#8b000057,#0000 26%),radial-gradient(circle at 44% 62%,#be123c42,#0000 28%),radial-gradient(circle at 74% 28%,#ffb7c575,#0000 24%),radial-gradient(circle at 90% 70%,#5f000042,#0000 28%),linear-gradient(135deg,#fff7f7 0%,#ffe4e6 42%,#f7d1d5 100%)}.topbar,main{width:min(1152px,100% - 32px);margin:0 auto}.lesson-main{width:min(760px,100% - 32px);padding-top:32px;padding-bottom:32px}.topbar{z-index:10;box-shadow:var(--liquid-shadow), inset 0 1px 0 #ffffffeb, inset 0 -1px 0 #ffffff47;-webkit-backdrop-filter:blur(34px)saturate(1.45);backdrop-filter:blur(34px)saturate(1.45);background:linear-gradient(135deg,#ffffff94,#ffecf04d);border:1px solid #ffffff9e;border-radius:28px;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;padding:14px;display:flex;position:sticky;top:0}.brand,.stats,.stat,.eyebrow,.hero-actions,.tabs,.lesson-progress,.self-actions{align-items:center;display:flex}.brand{color:var(--green);text-transform:uppercase;text-shadow:0 1px #fff9;gap:12px;font-weight:900}.brand small,.stat small{color:var(--muted);text-transform:none;font-weight:800;display:block}.brand-mark{color:#fff;background:linear-gradient(155deg,#37c7ff 0%,#0b99d4 100%);border:2px solid #ffffff8c;border-radius:19px;place-items:center;width:58px;height:58px;display:grid;box-shadow:0 18px 34px #0087ce47,inset 0 1px #ffffffa6,inset 0 -1px #ffffff2e}.brand-mark span{font-size:1.45rem}.brand-avatar,.profile-avatar,.friend-avatar{background:#fff;border:2px solid #ffffffb3;place-items:center;display:grid;overflow:hidden;box-shadow:0 10px 20px #5f00001f}.brand-avatar{border-radius:19px;width:58px;height:58px;padding:6px}.profile-avatar,.friend-avatar{border-radius:16px;width:46px;height:46px;padding:5px}.avatar-svg{filter:drop-shadow(0 4px 5px #0f172a26);width:100%;height:100%;display:block}.stats{-webkit-backdrop-filter:blur(22px)saturate(1.35);backdrop-filter:blur(22px)saturate(1.35);background:#ffffff85;border:1px solid #ffffff94;border-radius:999px;flex-wrap:wrap;justify-content:flex-end;gap:0;padding:6px;box-shadow:inset 0 1px #ffffffb8}.design-tools{gap:8px;margin-left:auto;display:flex}.design-toggle,.design-reset{border:2px solid var(--glass-border);min-height:48px;color:var(--green-dark);background:var(--liquid-bg-strong);box-shadow:0 10px 26px #5f00001a, inset 0 1px 0 var(--glass-highlight);-webkit-backdrop-filter:blur(24px)saturate(1.35);backdrop-filter:blur(24px)saturate(1.35);border-radius:999px;align-items:center;gap:7px;padding:0 22px;font-size:1rem;font-weight:900;display:inline-flex}.design-toggle.active{color:#fff;border-color:var(--green-dark);background:var(--green);box-shadow:0 12px 28px #5f00003d,inset 0 1px #ffffff6b}.design-reset{color:#b32626;background:#fff0f0}.avatar-edit-button{border:2px solid var(--glass-border);min-height:48px;color:var(--green-dark);background:var(--liquid-bg-strong);box-shadow:0 10px 26px #5f00001a, inset 0 1px 0 var(--glass-highlight);border-radius:999px;align-items:center;gap:9px;padding:0 18px 0 10px;font-size:.95rem;font-weight:900;display:inline-flex}.avatar-edit-preview{background:#fff;border-radius:14px;place-items:center;width:36px;height:36px;padding:4px;display:grid;box-shadow:inset 0 1px #fffffff2,0 6px 12px #5f000014}.profile-pill{min-width:190px;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;cursor:pointer;background:0 0;border:0;border-left:1px solid #e2e8f0;border-radius:0;order:4;align-items:center;gap:10px;padding:0 0 0 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span{display:block}.friend-request-toast strong{color:var(--green-dark);font-size:1.02rem}.friend-request-toast span{color:var(--muted);margin-top:4px;font-weight:800}.friend-request-actions{gap:8px;display:flex}.friend-request-actions .primary,.friend-request-actions .secondary{min-height:42px;padding:0 14px;font-size:.86rem}.draggable{touch-action:pan-y;--content-scale:1;flex:none;max-width:none;max-height:none;transition:transform .12s;display:block;position:relative;overflow:visible}.draggable-content{transform:scale(var(--content-scale));transform-origin:0 0;width:100%}.draggable.is-editing{z-index:20;outline-offset:6px;cursor:grab;touch-action:none;outline:3px dashed #8b0000cc}.draggable.is-editing:active{cursor:grabbing}.drag-label{z-index:3;color:#fff;background:var(--green);pointer-events:none;border-radius:999px;padding:2px 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minmax(240px,320px);align-items:start;gap:24px;padding:36px;display:grid;position:relative;overflow:hidden}.hero-admin-card{-webkit-backdrop-filter:blur(24px)saturate(1.35);backdrop-filter:blur(24px)saturate(1.35);z-index:1;background:#ffffffb8;border:2px solid #8b00001f;border-radius:22px;align-self:start;gap:10px;width:100%;min-width:0;padding:16px;display:grid;position:relative;top:auto;right:auto;box-shadow:0 18px 36px #5f00001f,inset 0 1px #ffffffe6}.hero-admin-card .section-title{margin-bottom:0}.hero-admin-card .section-title h2{font-size:1rem}.hero-admin-card .section-title p{font-size:.8rem}.hero-admin-card .admin-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-admin-card .admin-field input,.hero-admin-card .admin-field select{border-radius:16px;min-height:42px;padding:10px 12px}.hero-admin-card .admin-preview{border-radius:16px;grid-template-columns:1fr;padding:10px 12px}.hero-admin-card .admin-field{min-width:0}.hero:after{content:"🎓";border:4px solid var(--green-dark);filter:none;background:linear-gradient(155deg,#b11212 0%,#6f0000 100%);border-radius:30px;place-items:center;width:88px;height:88px;font-size:2.9rem;display:grid;position:absolute;top:auto;bottom:18px;right:32px;transform:rotate(-5deg);box-shadow:0 18px 34px #5f000057,inset 0 1px #ffffff8c,inset 0 -1px #ffffff29}.eyebrow{color:var(--green-dark);gap:8px;margin:0 0 14px;font-weight:900;display:flex}h1,h2,h3,p{margin-top:0}h1{letter-spacing:0;color:#6f0000;-webkit-text-fill-color:transparent;text-shadow:0 1px #ffffff94;background:linear-gradient(90deg,#5f0000 0%,#8b0000 52%,#b11212 100%);-webkit-background-clip:text;background-clip:text;max-width:630px;margin-bottom:14px;font-size:clamp(3rem,7vw,5rem);font-weight:900;line-height:.98}.hero p{color:#555;max-width:560px;font-size:1.08rem;font-weight:700;line-height:1.55}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:26px}.primary,.secondary,.tabs button,.answer-grid 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var(--glass-highlight);-webkit-backdrop-filter:blur(28px)saturate(1.35);backdrop-filter:blur(28px)saturate(1.35);background:#ffffff6b;border:2px solid #ffffff80;border-radius:28px;justify-items:center;gap:12px;padding:24px;display:grid}.daily-panel>span{color:var(--muted);font-weight:900}.daily-quests{gap:16px;display:grid}.quest-progress-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.quest-step{border:2px solid var(--glass-border);text-align:center;background:#ffffff94;border-radius:18px;justify-items:center;gap:8px;padding:14px 10px;font-weight:900;display:grid}.quest-step span{width:34px;height:34px;color:var(--green-dark);background:#fff0f0;border-radius:999px;place-items:center;display:grid}.quest-step.done{border-color:var(--blue);background:#e0f2feb8}.quest-step.done span{color:#fff;background:var(--blue)}.daily-reward-card{background:#fff0f0;border-radius:22px;grid-template-columns:auto 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.result-panel{align-content:center;min-height:520px;display:grid}.pair-grid,.answer-grid,.card-list{gap:12px;display:grid}.pair-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section-title,.mascot-card{justify-content:space-between;align-items:center;gap:14px;display:flex}.section-title{margin-bottom:18px}.section-title h2,.mascot-card h2{margin-bottom:4px}.section-title p,.mascot-card p{color:var(--muted);margin:0;font-weight:800}.course-panel{padding:26px}.course-list{gap:14px;display:grid}.course-row{border:2px solid var(--glass-border);width:100%;min-height:104px;color:var(--ink);text-align:left;box-shadow:0 14px 32px #5f00001a, inset 0 1px 0 var(--glass-highlight);-webkit-backdrop-filter:blur(24px)saturate(1.32);backdrop-filter:blur(24px)saturate(1.32);background:#ffffff75;border-radius:24px;grid-template-columns:72px minmax(0,1fr) auto;align-items:center;gap:16px;padding:16px;display:grid}.course-row.active{border-color:var(--green);box-shadow:0 16px 36px #5f000033, inset 0 1px 0 var(--glass-highlight);background:#fff0f0d1}.course-icon{color:#fff;background:linear-gradient(155deg,#344256 0%,#0f1722 100%);border:2px solid #ffffff94;border-radius:20px;place-items:center;width:62px;height:62px;font-weight:900;display:grid;position:relative;box-shadow:0 10px 20px #0f172233,inset 0 1px #ffffff6b}.course-icon span{color:#fff;background:linear-gradient(#a70f0f 0%,#7a0000 100%);border:3px solid #fff;border-radius:999px;place-items:center;width:32px;height:32px;font-size:.78rem;display:grid;position:absolute;bottom:-6px;right:-6px}.course-copy{gap:7px;display:grid}.course-copy span{font-size:1.12rem;font-weight:900}.course-copy strong{color:var(--muted);font-size:.92rem}.course-progress{background:#94a3b852;border-radius:999px;height:12px;overflow:hidden;box-shadow:inset 0 1px 2px #0f172a24}.course-progress i{border-radius:inherit;background:linear-gradient(90deg,#6f0000 0%,#b11212 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h3{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:.8rem;font-weight:900}.avatar-color-options,.avatar-style-options{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.avatar-color-options button{border:3px solid #0000;width:42px;height:42px;transition:transform .12s,border-color .12s;box-shadow:0 8px 18px #0f172a1f}.avatar-color-options button.round{border-radius:999px}.avatar-color-options button.square{border-radius:13px}.avatar-color-options button.active{border-color:var(--blue);transform:scale(1.1)}.avatar-style-options button{color:#334155;text-transform:capitalize;background:#f8fafc;border:2px solid #e2e8f0f2;border-radius:14px;min-height:42px;padding:0 16px;font-weight:900}.avatar-style-options button.active{color:#fff;border-color:var(--blue);background:var(--blue)}.avatar-owned-options button{white-space:normal;text-transform:none;max-width:190px;line-height:1.1}.avatar-shop-hint{color:var(--muted);text-align:center;font-size:.82rem;font-weight:800}.profile-summary h2{margin-bottom:6px}.profile-summary{position:sticky;top:86px}.admin-terminal{background:linear-gradient(#8b000014,#ffffffb8);border-color:#8b000033;gap:14px;display:grid}.admin-terminal-grid{gap:12px;display:grid}.admin-field{gap:6px;display:grid}.admin-field span{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:.78rem;font-weight:900}.admin-field input,.admin-field select{width:100%;color:var(--ink);background:#fff;border:2px solid #8b000024;border-radius:18px;outline:none;padding:12px 14px;font-weight:800}.admin-field input:focus,.admin-field select:focus{border-color:var(--blue);box-shadow:0 0 0 4px #19aee726}.admin-preview{color:var(--muted);background:#ffffffc7;border:1px solid #8b00001f;border-radius:18px;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:12px 14px;font-weight:900;display:grid}.admin-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.shop-panel{gap:18px;display:grid}.shop-header{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:16px;display:grid}.coin-balance{color:#92400e;background:#fff7d6;border-radius:22px;grid-template-columns:auto auto;justify-content:center;align-items:center;gap:4px 8px;min-width:132px;padding:12px 16px;display:grid;box-shadow:inset 0 1px #ffffffe6,0 10px 22px #5f000014}.coin-balance strong{color:#111827;font-size:1.25rem}.coin-balance span{color:var(--muted);text-transform:uppercase;text-align:center;grid-column:1/-1;font-size:.78rem;font-weight:900}.shop-message{color:var(--green-dark);background:#fff0f0;border-radius:18px;padding:12px 14px;font-weight:900}.shop-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.shop-card{border:2px solid var(--glass-border);box-shadow:0 10px 22px #5f000014, inset 0 1px 0 var(--glass-highlight);background:#ffffffa3;border-radius:24px;justify-items:center;gap:12px;padding:16px;display:grid}.shop-card.equipped{border-color:var(--blue);background:#e0f2feb8}.shop-item-preview{background:#fff;border-radius:24px;place-items:center;width:92px;height:92px;padding:10px;display:grid;box-shadow:inset 0 1px #fffffff2,0 10px 20px #0f172a14}.shop-item-copy{text-align:center;gap:4px;display:grid}.shop-item-copy strong{color:var(--ink);line-height:1.12}.shop-item-copy span{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;font-size:.76rem;font-weight:900}.shop-card .primary,.shop-card .secondary{width:100%;min-height:42px;padding:0 12px;font-size:.82rem}.league-panel{gap:18px;display:grid}.league-tabs{scrollbar-width:none;gap:10px;padding-bottom:2px;display:flex;overflow-x:auto}.league-tabs::-webkit-scrollbar{display:none}.league-tab{border:2px solid var(--glass-border);color:#6b7280;background:#fff;border-bottom-width:4px;border-radius:14px;flex:none;min-height:40px;padding:0 14px;font-weight:900}.league-tab.active{color:#fff;background:linear-gradient(#a70f0f 0%,#7a0000 100%);border-color:#991b1b;box-shadow:0 4px #991b1b}.league-hero{background:#ffffffeb;border-radius:26px;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:18px;padding:16px;display:grid;box-shadow:inset 0 1px #fffffff2,0 8px 24px #5f000014}.league-hero p{color:var(--muted);margin:0;font-weight:800}.league-rank-card{min-width:150px;color:var(--green-dark);background:#fff0f0;border-radius:24px;justify-items:center;gap:4px;padding:16px;display:grid;box-shadow:inset 0 1px #ffffffe6,0 10px 22px #5f000014}.league-rank-card span,.league-rank-card small{color:var(--muted);font-weight:900}.league-rank-card strong{color:var(--green-dark);font-size:2.4rem;line-height:1}.league-meta{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.league-list{gap:8px;display:grid}.league-row{border:2px solid var(--glass-border);background:#ffffff9e;border-radius:18px;grid-template-columns:58px 60px minmax(0,1fr) auto;align-items:center;gap:14px;padding:14px 16px;display:grid}.league-row.active{border-color:var(--blue);background:#e0f2fec7}.league-rank{width:42px;height:42px;color:var(--green-dark);background:#fff;border-radius:14px;place-items:center;font-weight:900;display:grid}.league-avatar{background:#fff;border-style:solid;border-width:2px;border-radius:20px;width:60px;height:60px;padding:5px}.league-avatar .avatar-svg{filter:none}.league-row div{gap:3px;min-width:0;display:grid}.league-row strong,.league-row small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.league-row small{color:var(--muted);font-weight:800}.league-row small:empty{display:none}.league-row 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