@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--font-main:"Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading:"Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--color-bg-deep:#f6f8fc;--color-bg-card:#fff;--color-bg-card-hover:#f1f5f9;--color-bg-sidebar:#f8fafc;--color-border:#cbd5e1;--color-border-glow:#2563eb59;--color-text-main:#0f172a;--color-text-muted:#334155;--color-text-inverse:#fff;--color-primary-cyan:#0284c7;--color-primary-blue:#1d4ed8;--color-primary-purple:#6d28d9;--color-primary-pink:#db2777;--color-success:#047857;--color-warning:#b45309;--color-danger:#b91c1c;--shadow-card:0 10px 25px -5px #0f172a14, 0 8px 10px -6px #0f172a0a;--shadow-card-hover:0 20px 25px -5px #0f172a1f, 0 10px 10px -5px #0f172a0f;--shadow-cyan-glow:0 4px 14px #0284c740;--shadow-blue-glow:0 4px 14px #1d4ed840;--shadow-purple-glow:0 4px 14px #6d28d940;--shadow-pink-glow:0 4px 14px #db277740;--transition-fast:.15s ease;--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--color-bg-deep);color:var(--color-text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:1.125rem;line-height:1.7;overflow-x:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-deep)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes 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.6rem}.lesson-status{align-items:center;gap:.35rem;display:flex}.lesson-status.completed{color:var(--color-success)}.lesson-status.in-progress{color:var(--color-primary-blue)}.sidebar-panel{flex-direction:column;gap:2rem;height:fit-content;display:flex}.achievements-box{padding:1.75rem}.achievements-header{font-family:var(--font-heading);border-bottom:1.5px solid var(--color-border);color:var(--color-text-main);align-items:center;gap:.5rem;margin-bottom:1.5rem;padding-bottom:1rem;font-size:1.3rem;font-weight:800;display:flex}.badges-grid-compact{grid-template-columns:repeat(4,1fr);justify-items:center;gap:1.25rem;display:grid}.badge-item-compact{border:1.5px solid var(--color-border);cursor:pointer;width:54px;height:54px;transition:all var(--transition-fast);background:#f1f5f9;border-radius:50%;justify-content:center;align-items:center;font-size:1.75rem;display:flex;position:relative}.badge-item-compact.unlocked{background:#fff;box-shadow:0 4px 10px 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dash{to{stroke-dashoffset:-100px}}.nn-stat-row{gap:2rem;margin-top:1rem;display:flex}.nn-stat-item{text-align:center}.nn-stat-label{color:var(--color-text-muted);text-transform:uppercase;font-size:.8rem;font-weight:700}.nn-stat-val{font-family:var(--font-heading);color:var(--color-text-main);font-size:1.5rem;font-weight:800}.prompt-simulator-container{grid-template-columns:1fr 1fr;gap:2rem;display:grid}@media (width<=900px){.prompt-simulator-container{grid-template-columns:1fr}}.prompt-input-panel{flex-direction:column;gap:1.75rem;padding:2rem;display:flex}.prompt-textarea{border:1.5px solid var(--color-border);color:var(--color-text-main);font-family:var(--font-main);resize:vertical;background:#fff;border-radius:14px;min-height:200px;padding:1.1rem;font-size:1.1rem;line-height:1.6}.prompt-textarea:focus{border-color:var(--color-primary-blue);outline:none}.prompt-output-panel{flex-direction:column;gap:1.75rem;padding:2rem;display:flex}.chat-box{border:1.5px solid var(--color-border);background:#f1f5f9;border-radius:14px;flex-direction:column;gap:1.25rem;min-height:260px;padding:1.5rem;display:flex;overflow-y:auto}.chat-message{gap:1rem;font-size:1rem;display:flex}.chat-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;font-weight:800;display:flex}.chat-avatar.user{background:var(--color-primary-blue);color:#fff}.chat-avatar.ai{background:var(--color-primary-pink);color:#fff}.chat-text{color:var(--color-text-main);background:#fff;border:1px solid #0000000f;border-radius:0 14px 14px;padding:.9rem 1.2rem;line-height:1.6;box-shadow:0 2px 4px #00000003}.chat-message.user-msg .chat-text{background:#1d4ed80d;border:1px solid #1d4ed826}.score-badge{font-size:.95rem;font-weight:800;font-family:var(--font-heading);border-radius:20px;align-items:center;gap:.5rem;padding:.6rem 1.2rem;display:inline-flex}.score-badge.high{color:var(--color-success);background:#0478571a;border:1px solid #04785733}.score-badge.mid{color:var(--color-warning);background:#b453091a;border:1px solid #b4530933}.score-badge.low{color:var(--color-danger);background:#b91c1c1a;border:1px solid #b91c1c33}.badge-modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:200;background:#0f172a99;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0}.badge-modal-content{text-align:center;width:90%;max-width:500px;padding:2.5rem;animation:.4s cubic-bezier(.175,.885,.32,1.275) scaleUp;position:relative}.modal-close-btn{color:var(--color-text-muted);cursor:pointer;transition:color var(--transition-fast);background:0 0;border:none;font-size:1.75rem;position:absolute;top:1rem;right:1.25rem}.modal-close-btn:hover{color:var(--color-text-main)}.celebrate-icon{margin-bottom:1rem;font-size:4.5rem;animation:2s ease-in-out infinite float}.new-badge-popup{z-index:1000;border-left:5px solid var(--color-primary-blue);align-items:center;gap:1.25rem;max-width:380px;padding:1.5rem;animation:.4s cubic-bezier(.175,.885,.32,1.275) slideInRight;display:flex;position:fixed;bottom:2rem;right:2rem;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.new-badge-icon{flex-shrink:0;font-size:2.5rem}.new-badge-info{flex-direction:column;gap:.25rem;display:flex}.new-badge-alert-title{font-family:var(--font-heading);color:var(--color-primary-blue);font-size:.95rem;font-weight:800}.new-badge-name{color:var(--color-text-main);font-size:1.15rem;font-weight:800}.new-badge-desc{color:var(--color-text-muted);font-size:.9rem}.footer{text-align:center;border-top:1px solid var(--color-border);color:var(--color-text-muted);padding:2.5rem;font-size:.9rem;font-weight:600}.embeddings-simulator-container{grid-template-columns:1fr 1.5fr;gap:2rem;animation:.4s fadeIn;display:grid}@media (width<=950px){.embeddings-simulator-container{grid-template-columns:1fr}}@keyframes searchWaveAnim{0%{opacity:.95;width:10px;height:10px}to{opacity:0;width:250px;height:250px}}