@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-primary:#0a0a0b;--bg-secondary:#141416;--bg-tertiary:#1c1c1f;--text-primary:#f2f2f3;--text-secondary:#a0a0a5;--text-muted:#6b6b70;--border-color:#27272a;--border-hover:#3f3f46;--accent-primary:#4f46e5;--accent-hover:#6366f1;--color-weak:#ef4444;--color-weak-bg:#ef44441a;--color-improving:#f59e0b;--color-improving-bg:#f59e0b1a;--color-good:#10b981;--color-good-bg:#10b9811a;--color-mastered:#8b5cf6;--color-mastered-bg:#8b5cf61a;--font-sans:"Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--shadow-sm:0 1px 2px 0 #0006;--shadow-md:0 4px 6px -1px #00000080, 0 2px 4px -1px #0000004d;--shadow-lg:0 10px 15px -3px #0009, 0 4px 6px -2px #0006;--shadow-glow:0 0 15px 0 #8b5cf633;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:radial-gradient(circle at 50% 0%, #1a1a24 0%, var(--bg-primary) 80%);background-attachment:fixed;min-height:100vh;overflow-x:hidden}a{color:inherit;text-decoration:none}button{color:inherit;cursor:pointer;background:0 0;border:none;font-family:inherit}ul,ol{list-style:none}input,textarea,select{color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-sm);transition:all var(--transition-fast);padding:.5rem .75rem;font-family:inherit;font-size:.95rem}input:focus,textarea:focus,select:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 2px #4f46e533}input::placeholder,textarea::placeholder{color:var(--text-muted)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.app-container{flex-direction:column;width:95%;max-width:1800px;min-height:100vh;margin:0 auto;padding:0 2vw;display:flex}.header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1.5rem 0;display:flex}.header-brand{align-items:center;gap:.75rem;display:flex}.header-logo{color:var(--accent-primary)}.header-title-container{flex-direction:column;display:flex}.header-title{letter-spacing:-.02em;font-size:1.25rem;font-weight:600}.header-subtitle{color:var(--text-secondary);font-size:.8rem}.header-actions{align-items:center;gap:1rem;display:flex}.icon-btn{border-radius:var(--radius-sm);width:2.5rem;height:2.5rem;color:var(--text-secondary);transition:all var(--transition-fast);justify-content:center;align-items:center;display:flex}.icon-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}.search-btn{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.9rem;display:flex}.search-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.shortcut-hint{background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-muted);border-radius:4px;justify-content:center;align-items:center;padding:.15rem .4rem;font-size:.7rem;font-weight:500;display:flex}.btn-primary{background:linear-gradient(135deg, var(--accent-primary) 0%, #4338ca 100%);color:#fff;border-radius:var(--radius-md);transition:all var(--transition-fast);border:1px solid #ffffff1a;align-items:center;gap:.5rem;padding:.6rem 1.25rem;font-size:.9rem;font-weight:500;display:flex;box-shadow:0 4px 14px #4f46e563}.btn-primary:hover{background:linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-primary) 100%);transform:translateY(-2px);box-shadow:0 6px 20px #4f46e580}.dashboard-grid{flex-direction:column;gap:3rem;padding-bottom:4rem;display:flex}.topic-grid{grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:2rem;margin-top:1.5rem;display:grid}.section-header{justify-content:space-between;align-items:center;margin-bottom:1.5rem;display:flex}.section-title{color:var(--text-primary);align-items:center;gap:.5rem;font-size:1.25rem;font-weight:600;display:flex}.section-title.accent-red{color:var(--color-weak)}.section-title.accent-purple{color:var(--color-mastered)}.stats-container{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.stat-card{-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-lg);transition:transform var(--transition-normal), box-shadow var(--transition-normal);box-shadow:var(--shadow-md);background:#141416a6;border:1px solid #ffffff0d;flex-direction:column;gap:.75rem;padding:1.5rem;display:flex}.stat-card:hover{box-shadow:var(--shadow-lg);border-color:#ffffff1a;transform:translateY(-3px)}.stat-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;font-weight:500}.stat-value{color:var(--text-primary);font-size:2rem;font-weight:700}.topic-card{-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-lg);transition:all var(--transition-normal);cursor:pointer;box-shadow:var(--shadow-sm);background:#141416a6;border:1px solid #ffffff0d;flex-direction:column;gap:1.25rem;padding:1.75rem;display:flex;position:relative;overflow:hidden}.topic-card:before{content:"";background:var(--border-color);width:4px;height:100%;transition:background var(--transition-fast);position:absolute;top:0;left:0}.topic-card:hover{box-shadow:var(--shadow-lg);border-color:#ffffff1f;transform:translateY(-4px)}.topic-card[data-confidence="30"]:before{background:var(--color-weak)}.topic-card[data-confidence="50"]:before{background:var(--color-improving)}.topic-card[data-confidence="70"]:before{background:var(--color-good)}.topic-card[data-confidence="100"]:before{background:var(--color-mastered)}.topic-card[data-confidence="100"]{box-shadow:var(--shadow-glow);border-color:#8b5cf64d}.topic-card-header{justify-content:space-between;align-items:flex-start;display:flex}.topic-card-title{color:var(--text-primary);margin-bottom:.25rem;font-size:1.1rem;font-weight:600;line-height:1.3}.topic-card-subject{color:var(--text-secondary);align-items:center;gap:.25rem;font-size:.8rem;display:flex}.topic-card-actions{opacity:0;transition:opacity var(--transition-fast);align-items:center;display:flex}.topic-card:hover .topic-card-actions{opacity:1}.topic-card-meta{color:var(--text-secondary);justify-content:space-between;align-items:center;font-size:.8rem;display:flex}.confidence-indicator{flex-direction:column;gap:.5rem;display:flex}.confidence-header{text-transform:uppercase;letter-spacing:.05em;justify-content:space-between;font-size:.75rem;font-weight:600;display:flex}.confidence-header[data-confidence="30"]{color:var(--color-weak)}.confidence-header[data-confidence="50"]{color:var(--color-improving)}.confidence-header[data-confidence="70"]{color:var(--color-good)}.confidence-header[data-confidence="100"]{color:var(--color-mastered)}.confidence-bar-bg{background:var(--bg-tertiary);border-radius:var(--radius-full);width:100%;height:6px;overflow:hidden}.confidence-bar-fill{border-radius:var(--radius-full);height:100%;transition:width var(--transition-normal)}.confidence-bar-fill[data-confidence="30"]{background:var(--color-weak);width:30%}.confidence-bar-fill[data-confidence="50"]{background:var(--color-improving);width:50%}.confidence-bar-fill[data-confidence="70"]{background:var(--color-good);width:70%}.confidence-bar-fill[data-confidence="100"]{background:var(--color-mastered);width:100%}.ticker-container{border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);width:100%;margin-bottom:2rem;padding:1.5rem 0;position:relative}.ticker-track{flex-wrap:wrap;gap:1.25rem;display:flex}.ticker-item{border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;background:#ffffff08;border:1px solid #ffffff0d;align-items:center;gap:.5rem;padding:.6rem 1.25rem;font-size:.9rem;font-weight:500;display:flex}.ticker-item:hover{color:var(--text-primary);background:#ffffff14;transform:translateY(-1px)}.ticker-item.active{color:#fff;background:#4f46e51a;border-color:#4f46e580;box-shadow:0 4px 14px #4f46e533}.ticker-count{border-radius:var(--radius-full);color:var(--text-muted);background:#0000004d;padding:.15rem .5rem;font-size:.75rem}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;opacity:0;pointer-events:none;width:100vw;height:100vh;transition:opacity var(--transition-normal);background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;top:0;left:0}.modal-overlay.open{opacity:1;pointer-events:auto}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:90%;max-width:500px;box-shadow:var(--shadow-lg);transition:all var(--transition-normal);padding:2rem;transform:translateY(20px)scale(.95)}.modal-overlay.open .modal-content{transform:translateY(0)scale(1)}.modal-header{justify-content:space-between;align-items:center;margin-bottom:1.5rem;display:flex}.modal-title{font-size:1.25rem;font-weight:600}.form-group{flex-direction:column;gap:.5rem;margin-bottom:1.5rem;display:flex}.form-label{color:var(--text-secondary);font-size:.85rem;font-weight:500}.modal-actions{justify-content:flex-end;gap:1rem;margin-top:2rem;display:flex}.btn-ghost{border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);padding:.6rem 1.25rem;font-size:.9rem;font-weight:500}.btn-ghost:hover{background:var(--bg-tertiary);color:var(--text-primary)}.confidence-selector{grid-template-columns:1fr 1fr;gap:.5rem;display:grid}.confidence-option{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-tertiary);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);flex-direction:column;gap:.25rem;padding:.75rem;font-size:.85rem;font-weight:500;display:flex}.confidence-option.selected{border-color:var(--accent-primary);color:var(--text-primary);background:#4f46e51a}.empty-state{text-align:center;background:var(--bg-secondary);border:1px dashed var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;padding:3rem 1rem;display:flex}.empty-state-icon{color:var(--border-hover);margin-bottom:1rem}.empty-state h3{color:var(--text-primary);margin-bottom:.5rem;font-weight:500}.empty-state p{max-width:300px;margin-bottom:1.5rem;font-size:.9rem}