@import "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap";
:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#ffffff08;--bg-card-hover:#ffffff0f;--text-primary:#fff;--text-secondary:#ffffffb3;--text-muted:#fff6;--accent-gradient:linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f953c6 100%);--accent-primary:#667eea;--accent-secondary:#764ba2;--accent-tertiary:#f953c6;--accent-glow:#667eea4d;--glass-border:#ffffff14;--glass-bg:#ffffff05;--success:#00d4aa;--success-light:#00d4aa1a;--warning:#f59e0b;--warning-light:#f59e0b1a;--error:#ff4757;--error-light:#ff47571a;--shadow-glow:0 0 60px var(--accent-glow);--shadow-card:0 8px 32px #0006;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-primary);min-height:100vh;color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;font-size:15px;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4{letter-spacing:-.02em;font-family:Space Grotesk,sans-serif;font-weight:700;line-height:1.25}h1{font-size:1.75rem}h2{font-size:1.25rem}h3{font-size:1.1rem}.page{grid-template-columns:320px minmax(0,1fr);min-height:100vh;display:grid;position:relative;overflow:hidden}.page:before,.page:after{content:"";filter:blur(100px);opacity:.4;pointer-events:none;z-index:0;border-radius:50%;position:fixed}.page:before{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);width:600px;height:600px;animation:20s ease-in-out infinite float1;top:-200px;right:-100px}.page:after{background:linear-gradient(135deg,#f953c6 0%,#667eea 100%);width:400px;height:400px;animation:25s ease-in-out infinite float2;bottom:-100px;left:200px}@keyframes float1{0%,to{transform:translate(0)scale(1)}33%{transform:translate(-50px,50px)scale(1.1)}66%{transform:translate(30px,-30px)scale(.9)}}@keyframes float2{0%,to{transform:translate(0)scale(1)}33%{transform:translate(40px,-40px)scale(1.05)}66%{transform:translate(-30px,30px)scale(.95)}}.sidebar{z-index:10;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--glass-border);background:#0a0a0ff2;flex-direction:column;gap:32px;max-height:100vh;padding:32px;display:flex;position:relative;overflow-y:auto}.brand{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-family:Space Grotesk,sans-serif;font-size:1.5rem;font-weight:700}.brand-tagline{color:var(--text-muted);margin-top:4px;font-size:13px}.profile-card{border:1px solid var(--glass-border);background:#ffffff08;border-radius:14px;flex-direction:column;gap:4px;padding:18px;display:flex}.profile-card strong{font-size:1rem}.profile-card p,.eyebrow{color:var(--text-muted);font-size:13px;font-weight:600}.student-nav{flex-direction:column;gap:10px;display:flex}.student-nav a{border:1px solid var(--glass-border);color:var(--text-secondary);transition:all var(--transition-base);border-radius:10px;padding:12px 14px;text-decoration:none}.student-nav a:hover{color:var(--text-primary);background:#667eea1a;border-color:#667eea59}.auth-block{flex-direction:column;gap:16px;display:flex}.auth-block h2{align-items:center;gap:10px;margin-bottom:8px;font-size:1rem;display:flex}.auth-block h2:before{content:"";background:var(--accent-gradient);border-radius:2px;width:4px;height:22px}.auth-divider{border-top:1px solid var(--glass-border);margin-top:8px;padding-top:24px}label{color:var(--text-secondary);flex-direction:column;gap:8px;font-size:13px;font-weight:500;display:flex}input,select,textarea{border:1px solid var(--glass-border);width:100%;min-height:44px;color:var(--text-primary);transition:all var(--transition-base);background:#ffffff08;border-radius:10px;padding:12px 16px;font-family:inherit;font-size:14px}input:focus,select:focus,textarea:focus{border-color:var(--accent-primary);background:#667eea0d;outline:none;box-shadow:0 0 0 4px #667eea1a}input::placeholder,textarea::placeholder{color:var(--text-muted)}select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.4)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;padding-right:44px}select option{background:var(--bg-secondary);color:var(--text-primary)}textarea{resize:vertical;min-height:100px;line-height:1.5}button{background:var(--accent-gradient);color:#fff;cursor:pointer;min-height:44px;transition:all var(--transition-base);border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-family:Space Grotesk,sans-serif;font-size:14px;font-weight:600;display:inline-flex}button:hover:not(:disabled){box-shadow:var(--shadow-glow);transform:translateY(-2px)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{border:1px solid var(--glass-border);color:var(--text-primary);background:0 0}button.secondary:hover:not(:disabled){border-color:var(--accent-primary);background:#667eea1a}.main{z-index:1;padding:32px 40px;position:relative;overflow-y:auto}.topbar{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;padding:24px;display:flex}.profile-actions{color:var(--text-secondary);align-items:center;gap:12px;font-weight:600;display:flex}.toolbar{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:28px;padding:24px;display:flex}.toolbar label{flex:1;min-width:140px}.start-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:20px;display:grid}.start-option{border:1px solid var(--glass-border);background:#ffffff08;border-radius:16px;flex-direction:column;gap:14px;min-height:100%;padding:20px;display:flex}.option-step{background:var(--accent-gradient);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-family:Space Grotesk,sans-serif;font-weight:700;display:inline-flex}.start-controls{flex-direction:column;gap:12px;margin-top:auto;display:flex}.file-button{border:1px solid var(--glass-border);min-height:44px;color:var(--text-primary);cursor:pointer;overflow-wrap:anywhere;border-radius:10px;justify-content:center;align-items:center;padding:12px 16px;display:inline-flex;position:relative}.file-button input{opacity:0;cursor:pointer;position:absolute;inset:0}.planned-list{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.planned-list span{border:1px solid var(--glass-border);color:var(--text-secondary);background:#ffffff08;border-radius:999px;padding:8px 12px}.lesson{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;margin-bottom:24px;padding:28px;animation:.5s ease-out fadeIn}.lesson h1{margin-bottom:12px}.stack{flex-direction:column;gap:16px;display:flex}.actions{flex-wrap:wrap;gap:12px;display:flex}.question{border:1px solid var(--glass-border);background:#ffffff05;border-radius:16px;padding:20px}.question h2{margin-bottom:16px;font-size:1rem}.options{flex-direction:column;gap:10px;display:flex}.option{border:1px solid var(--glass-border);cursor:pointer;transition:all var(--transition-base);background:#ffffff05;border-radius:12px;align-items:center;gap:12px;padding:14px 18px;font-weight:500;display:flex}.option:hover{border-color:var(--accent-primary);background:#667eea1a}.option input{cursor:pointer;width:18px;min-height:18px}.result{border:1px solid var(--glass-border);white-space:pre-wrap;min-height:80px;color:var(--text-secondary);background:#0000004d;border-radius:12px;padding:20px;font-family:SF Mono,Monaco,Cascadia Code,monospace;font-size:13px;line-height:1.6;overflow-x:auto}.stream{white-space:pre-wrap;color:var(--text-secondary);font-size:15px;line-height:1.8}.memory-grid{grid-template-columns:340px minmax(0,1fr);align-items:start;gap:24px;display:grid}.worksheet-controls{grid-template-columns:minmax(0,1fr) 160px 100px 120px;align-items:end;gap:16px;margin:20px 0;display:grid}.submission-controls{grid-template-columns:minmax(180px,260px) 100px;align-items:end;gap:16px;margin-top:16px;display:grid}.submission-result{background:var(--success-light);color:var(--success);border:1px solid #00d4aa4d;border-radius:12px;justify-content:space-between;align-items:center;gap:16px;margin-top:16px;padding:16px;display:flex}.creative-controls{grid-template-columns:minmax(160px,220px) 100px;align-items:end;gap:16px;display:grid}.creative-story{white-space:pre-wrap;line-height:1.8}.game-grid{grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px;display:grid}.muted{color:var(--text-muted);font-size:14px}.error{color:var(--error);background:var(--error-light);border:1px solid #ff47574d;border-radius:12px;padding:16px 20px;font-weight:600}.welcome-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:400px;padding:48px;display:flex}.welcome-state h1{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:16px;font-size:2.5rem}.welcome-state p{color:var(--text-secondary);max-width:500px;font-size:1.15rem}.features-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;display:grid}.feature-item{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);text-align:center;transition:all var(--transition-base);border-radius:16px;padding:28px}.feature-item:hover{border-color:#667eea4d;transform:translateY(-4px)}.feature-icon{background:linear-gradient(135deg,#667eea33 0%,#764ba21a 100%);border:1px solid #667eea33;border-radius:14px;justify-content:center;align-items:center;width:56px;height:56px;margin:0 auto 16px;font-size:1.5rem;display:flex}.feature-item h3{margin-bottom:6px;font-size:.95rem}.feature-item p{color:var(--text-secondary);font-size:.85rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1024px){.memory-grid{grid-template-columns:1fr}.features-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:860px){.page{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--glass-border);max-height:none;padding:24px;position:relative}.main{padding:24px}.toolbar,.topbar,.profile-actions{flex-direction:column;align-items:stretch}.toolbar label{min-width:100%}.worksheet-controls,.submission-controls,.creative-controls,.start-grid,.features-grid{grid-template-columns:1fr}}@media (max-width:480px){.lesson{border-radius:16px;padding:20px}button{width:100%}}