:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#e6e5e5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;padding-top:64px}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}._navbar_l1u2p_1{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#fff;box-shadow:0 2px 4px #0000001a;position:fixed;top:0;left:0;right:0;z-index:1000}._logo_l1u2p_15{text-decoration:none;display:flex;align-items:center}._logoContainer_l1u2p_21{display:flex;align-items:center;gap:12px;padding:4px 0}._logoImage_l1u2p_28{height:36px;width:auto;object-fit:contain;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}._logoText_l1u2p_35{font-weight:700;font-size:1.4rem;color:#3b3b4f;letter-spacing:.5px;font-family:inherit}._navbar-links_l1u2p_43{display:flex;align-items:center;gap:2rem}._navbar-links_l1u2p_43 a,._navbar-links_l1u2p_43 ._legalLink_l1u2p_50{text-decoration:none;color:#333;font-weight:500;transition:color .2s ease}._navbar-links_l1u2p_43 a:hover,._navbar-links_l1u2p_43 ._legalLink_l1u2p_50:hover{color:#007bff}._navbar-waitlist_l1u2p_62{background:linear-gradient(90deg,#a7bfff,#a0c7fe);color:#18181b;border:none;border-radius:10px;padding:10px 20px;font-weight:700;font-size:1rem;cursor:pointer;box-shadow:0 2px 8px #a7bfff14;transition:all .2s ease;min-width:120px;white-space:nowrap}._navbar-waitlist_l1u2p_62:hover{background:linear-gradient(90deg,#b7cfff,#b4dbfe);transform:translateY(-1px)}._navbar-waitlist_l1u2p_62._highlighted_l1u2p_82{background:linear-gradient(90deg,#a7bfff,#a0c7fe);box-shadow:0 0 0 4px #a0c7fe4d,0 4px 16px #a0c7fe33;transform:scale(1.02);animation:_pulse_l1u2p_1 1.5s infinite}@keyframes _pulse_l1u2p_1{0%{opacity:1}50%{opacity:.7}to{opacity:1}}@media (max-width: 700px){._navbar_l1u2p_1{padding:0 12px;height:56px}._navbar-links_l1u2p_43{gap:16px}._navbar-waitlist_l1u2p_62{padding:6px 14px;font-size:.95rem}}._hero_73684_1{display:flex;align-items:center;justify-content:center;margin:0 auto;max-width:800px;padding:48px 24px;box-sizing:border-box}._heroImageWrapper_73684_11{flex:1 1 340px;display:flex;align-items:center;justify-content:center}._heroImage_73684_11{width:100%;max-width:420px;border-radius:18px;box-shadow:0 4px 32px #00000012;object-fit:cover}._heroContent_73684_26{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:24px;text-align:center;width:100%}._heroTitle_73684_36{font-size:2.8rem;font-weight:800;margin:0 0 8px;color:#18181b;line-height:1.1;text-align:center}._heroDesc_73684_45{font-size:1.15rem;color:#444;margin:0 0 16px;max-width:600px;text-align:center}._heroForm_73684_53{display:flex;align-items:center;background:#f4f3fa;border-radius:12px;box-shadow:0 2px 8px #a0c7fe14;padding:8px 12px;gap:12px;width:100%;max-width:420px;transition:all .5s ease-in-out;position:relative}._heroForm_73684_53._highlighted_73684_67{background:#e8f0ff;box-shadow:0 0 0 4px #a0c7fe4d,0 4px 16px #a0c7fe33;transform:scale(1.02)}._inputWrapper_73684_74{flex:1;position:relative;display:flex;flex-direction:column;min-width:0}._heroInput_73684_82{width:100%;border:none;background:transparent;font-size:1.1rem;padding:10px 8px;outline:none;color:#222;transition:all .2s ease}._heroInput_73684_82._inputError_73684_93{color:#dc2626}._errorMessage_73684_97{position:absolute;bottom:-20px;left:8px;color:#dc2626;font-size:.85rem;font-weight:500}._heroButton_73684_106{background:linear-gradient(90deg,#a7bfff,#a0c7fe);color:#18181b;border:none;border-radius:10px;padding:10px 20px;font-weight:700;font-size:1rem;cursor:pointer;box-shadow:0 2px 8px #a7bfff14;transition:all .2s ease;min-width:120px;white-space:nowrap;flex-shrink:0}._heroButton_73684_106:hover:not(:disabled){background:linear-gradient(90deg,#b7cfff,#b4dbfe);transform:translateY(-1px)}._heroButton_73684_106:disabled{opacity:.7;cursor:not-allowed}._heroButton_73684_106._submitting_73684_132{background:linear-gradient(90deg,#a7bfff,#a0c7fe);animation:_pulse_73684_1 1.5s infinite}@keyframes _pulse_73684_1{0%{opacity:1}50%{opacity:.7}to{opacity:1}}@media (max-width: 900px){._hero_73684_1{flex-direction:column;gap:32px;padding:24px 8px 0}._heroImageWrapper_73684_11,._heroContent_73684_26{max-width:100%;width:100%;align-items:center}._heroTitle_73684_36{font-size:2.1rem;text-align:center}._heroDesc_73684_45,._heroForm_73684_53{text-align:center;margin-left:auto;margin-right:auto}._heroForm_73684_53{flex-direction:column;align-items:stretch;padding:12px}._heroButton_73684_106{width:100%}._errorMessage_73684_97{position:static;margin-top:4px;text-align:left}}._howItWorks_1grlg_1{margin:48px auto 0;max-width:900px;padding:0 24px;text-align:left}._title_1grlg_8{font-size:1.7rem;font-weight:700;margin-bottom:24px;color:#222}._steps_1grlg_15{list-style:none;margin:0;padding:0}._step_1grlg_15{display:flex;flex-direction:column;margin-bottom:24px;padding-left:32px;position:relative}._step_1grlg_15:not(:last-child):before{content:"";position:absolute;left:10px;top:32px;width:2px;height:calc(100% - 32px);background:#e0e0e0}._stepHeader_1grlg_39{display:flex;align-items:center;gap:8px}._stepH3_1grlg_45{font-size:1.1rem;font-weight:600;color:#8886a3;font-family:Inter,Arial,sans-serif;margin-right:8px}._stepTitle_1grlg_53{font-size:1.1rem;font-weight:600;color:#22223b}._stepDesc_1grlg_59{color:#8886a3;font-size:1rem;margin-left:32px;margin-top:2px;text-align:left}@media (max-width: 700px){._howItWorks_1grlg_1{padding:0 8px}._step_1grlg_15{padding-left:18px}._stepDesc_1grlg_59{margin-left:18px}}._demoSection_1rpjt_1{margin:48px auto;max-width:900px;padding:0 24px;border-radius:18px;display:flex;flex-direction:column;align-items:center;box-shadow:0 2px 16px #a0c7fe0a}._demoTitle_1rpjt_14{font-size:1.7rem;font-weight:700;margin-bottom:24px;color:#18181b;text-align:left;width:100%}._demoVideoWrapper_1rpjt_23{width:100%;max-width:800px;aspect-ratio:16/9;border-radius:18px;overflow:hidden;box-shadow:0 2px 8px #a0c7fe14;display:flex;align-items:center;justify-content:center;background:#fff}@media (max-width: 900px){._demoSection_1rpjt_1{padding:0 8px}._demoVideoWrapper_1rpjt_23{max-width:100%}._demoTitle_1rpjt_14{font-size:1.2rem}}._featuresSection_1aoj3_1{margin:56px auto 0;max-width:1100px;padding:0 24px;display:flex;flex-direction:column;align-items:center;border-radius:18px;box-shadow:0 2px 16px #a0c7fe0a}._featuresTitle_1aoj3_12{font-size:2.3rem;font-weight:800;color:#18181b;margin-bottom:10px;text-align:center}._featuresSubtitle_1aoj3_20{color:#444;font-size:1.1rem;margin-bottom:28px;text-align:center;max-width:600px}._featuresButton_1aoj3_28{background:linear-gradient(90deg,#a7bfff,#a0c7fe);color:#18181b;border:none;border-radius:12px;padding:14px 32px;font-size:1.1rem;font-weight:700;margin-bottom:36px;cursor:pointer;box-shadow:0 2px 8px #a0c7fe14;transition:background .2s,transform .1s}._featuresButton_1aoj3_28:hover{background:linear-gradient(90deg,#b7cfff,#b4dbfe);transform:translateY(-2px) scale(1.03)}._featuresGrid_1aoj3_46{display:flex;gap:24px;width:100%;justify-content:center;flex-wrap:wrap}._featureCard_1aoj3_54{background:#fff;border:1.5px solid #ece9f9;border-radius:14px;box-shadow:0 2px 8px #a0c7fe14;padding:28px 22px 22px;min-width:220px;max-width:270px;flex:1 1 220px;display:flex;gap:18px;align-items:flex-start;transition:box-shadow .2s,border .2s}._featureCard_1aoj3_54:hover{box-shadow:0 4px 16px #a0c7fe33;border:1.5px solid #b7cfff}._featureIcon_1aoj3_73{font-size:2rem;margin-right:8px;margin-top:2px}._featureCardTitle_1aoj3_79{font-size:1.08rem;font-weight:700;color:#18181b;margin-bottom:4px}._featureCardDesc_1aoj3_86{color:#444;font-size:.98rem;font-weight:400}@media (max-width: 900px){._featuresGrid_1aoj3_46{flex-direction:column;gap:18px;align-items:center}._featureCard_1aoj3_54{max-width:100%;width:100%}._featuresSection_1aoj3_1{padding:0 8px}._featuresTitle_1aoj3_12{font-size:1.5rem}}._ctaSection_wjdqp_1{margin:64px auto 0;max-width:900px;padding:0 24px 48px;display:flex;flex-direction:column;align-items:center;justify-content:center}._ctaTitle_wjdqp_11{font-size:2.4rem;font-weight:800;color:#18181b;margin-bottom:12px;text-align:center}._ctaSubtitle_wjdqp_19{color:#444;font-size:1.15rem;margin-bottom:36px;text-align:center;max-width:700px}._waitlistForm_wjdqp_27{display:flex;gap:12px;width:100%;max-width:500px;margin-bottom:24px}._emailInput_wjdqp_35{flex:1;padding:16px;border:2px solid #e2e8f0;border-radius:12px;font-size:1rem;transition:border-color .2s}._emailInput_wjdqp_35:focus{outline:none;border-color:#a7bfff}._navbarWaitlist_wjdqp_49{background:linear-gradient(90deg,#a7bfff,#a0c7fe);color:#3b3b4f;border:none;border-radius:10px;padding:8px 14px;font-weight:700;font-size:1rem;cursor:pointer;box-shadow:0 2px 8px #a7bfff14;transition:all .3s ease}._navbarWaitlist_wjdqp_49:hover{background:linear-gradient(90deg,#b7cfff,#b4dbfe)}._navbarWaitlist_wjdqp_49._highlighted_wjdqp_66{animation:_highlight_wjdqp_66 1s ease}@keyframes _highlight_wjdqp_66{0%{transform:scale(1);box-shadow:0 2px 8px #a7bfff14}50%{transform:scale(1.05);box-shadow:0 4px 16px #a7bfff33}to{transform:scale(1);box-shadow:0 2px 8px #a7bfff14}}._message_wjdqp_85{text-align:center;padding:12px 24px;border-radius:8px;font-size:1rem;margin-top:16px}._success_wjdqp_93{background-color:#dcfce7;color:#166534}._error_wjdqp_98{background-color:#fee2e2;color:#991b1b}@media (max-width: 700px){._ctaSection_wjdqp_1{padding:0 8px 32px}._ctaTitle_wjdqp_11{font-size:1.5rem}._ctaSubtitle_wjdqp_19{font-size:1rem}._waitlistForm_wjdqp_27{flex-direction:column;gap:8px}._emailInput_wjdqp_35{width:100%}._navbarWaitlist_wjdqp_49{padding:6px 14px;font-size:.95rem}}._footer_tmj90_1{display:flex;justify-content:space-between;align-items:center;padding:20px}._copyright_tmj90_8{margin:0;font-size:.9rem;color:#666}._githubLink_tmj90_14:hover{text-decoration:underline}._container_7nqem_1{min-height:100vh;padding:120px 20px 40px;background-color:#fff}._content_7nqem_7{max-width:800px;margin:0 auto;padding:40px}._title_7nqem_13{color:#18181b;font-size:2.5rem;font-weight:800;margin-bottom:2.5rem;text-align:center;line-height:1.2}._markdownContent_7nqem_22{color:#18181b;line-height:1.7;font-size:1.1rem}._markdownContent_7nqem_22 h1{font-size:2rem;font-weight:800;margin:2.5rem 0 1.5rem;color:#18181b;line-height:1.3}._markdownContent_7nqem_22 h2{font-size:1.5rem;font-weight:700;margin:2rem 0 1rem;color:#18181b;line-height:1.4}._markdownContent_7nqem_22 p{margin-bottom:1.25rem;color:#444}._markdownContent_7nqem_22 ul,._markdownContent_7nqem_22 ol{margin:1.25rem 0;padding-left:2rem;color:#444}._markdownContent_7nqem_22 li{margin-bottom:.75rem}._markdownContent_7nqem_22 a{color:#007bff;text-decoration:none;font-weight:500}._markdownContent_7nqem_22 a:hover{text-decoration:underline}._markdownContent_7nqem_22 strong{font-weight:700;color:#18181b}._markdownContent_7nqem_22 em{font-style:italic;color:#444}._markdownContent_7nqem_22 blockquote{border-left:4px solid #007bff;margin:1.5rem 0;padding:1rem 0 1rem 1.5rem;color:#444;background-color:#f8f9fa;border-radius:0 4px 4px 0}._markdownContent_7nqem_22 code{background-color:#f8f9fa;padding:.2rem .4rem;border-radius:4px;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.9em;color:#18181b}._markdownContent_7nqem_22 pre{background-color:#f8f9fa;padding:1.25rem;border-radius:8px;overflow-x:auto;margin:1.5rem 0}._markdownContent_7nqem_22 pre code{background-color:transparent;padding:0}._markdownContent_7nqem_22 table{width:100%;border-collapse:collapse;margin:1.5rem 0;border-radius:8px;overflow:hidden}._markdownContent_7nqem_22 th,._markdownContent_7nqem_22 td{border:1px solid #e5e7eb;padding:1rem;text-align:left}._markdownContent_7nqem_22 th{background-color:#f8f9fa;font-weight:600;color:#18181b}._markdownContent_7nqem_22 tr:nth-child(2n){background-color:#f8f9fa}@media (max-width: 768px){._container_7nqem_1{padding:100px 16px 32px}._content_7nqem_7{padding:24px}._title_7nqem_13{font-size:2rem;margin-bottom:2rem}._markdownContent_7nqem_22{font-size:1rem}._markdownContent_7nqem_22 h1{font-size:1.75rem}._markdownContent_7nqem_22 h2{font-size:1.35rem}}._demoPageBg_1k3wi_1{min-height:100vh;width:100vw;display:flex;align-items:center;justify-content:center;background:#ececec;background:linear-gradient(135deg,#ececec,#f7f7fa);position:fixed;top:0;left:0;z-index:0}._centerWrapper_1k3wi_16{height:100vh;width:100vw;display:flex;align-items:center;justify-content:center;background:#f5f5f5;overflow:hidden;position:fixed;top:0;left:0}._centerHigher_1k3wi_29{align-items:center;padding:0;height:100vh;width:100%;display:flex;justify-content:center}._demo_1k3wi_1{max-width:700px;width:90%;margin:0 auto;padding:3.5rem 2.5rem;text-align:center;background:#fff;border-radius:18px;box-shadow:0 2px 12px #0000000f;position:relative;max-height:90vh;overflow-y:auto}._content_1k3wi_52{width:100%;max-width:800px;margin:0 auto;padding:2.5rem;background:none;border-radius:0;border:none;box-shadow:none}form{width:100%;max-width:600px;margin:0 auto 2rem}._input-group_1k3wi_71{margin-bottom:1.5rem;position:relative;display:flex;gap:1.5rem;align-items:flex-start}._input-group_1k3wi_71 label{display:block;margin-bottom:.5rem;font-family:var(--body-font);color:#333;min-width:100px;text-align:left;font-weight:500}._input-group_1k3wi_71 input,._input-group_1k3wi_71 textarea{width:100%;padding:.8em 1.2em;border-radius:12px;border:1px solid #e2e8f0;font-size:1em;font-weight:400;font-family:var(--body-font);background-color:#fff;color:#2d3748;transition:all .3s ease}._input-group_1k3wi_71 input:hover,._input-group_1k3wi_71 textarea:hover{border-color:#8b5cf6}._input-group_1k3wi_71 input:focus,._input-group_1k3wi_71 textarea:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px #8b5cf61a}._file-upload_1k3wi_115{display:flex;align-items:center;gap:1rem;margin-top:.5rem}._file-upload_1k3wi_115 input[type=file]{display:none}._file-upload_1k3wi_115 label._upload-button_1k3wi_126{padding:.6em 1.2em;border-radius:12px;border:1px solid #e2e8f0;font-size:.9em;font-weight:500;font-family:var(--body-font);background-color:#fff;color:#2d3748;cursor:pointer;transition:all .3s ease}._file-upload_1k3wi_115 label._upload-button_1k3wi_126:hover{border-color:#8b5cf6;color:#8b5cf6}._file-upload_1k3wi_115 label._upload-button_1k3wi_126._disabled_1k3wi_144{opacity:.6;cursor:not-allowed;background-color:#f1f5f9;color:#64748b}._file-upload_1k3wi_115 label._upload-button_1k3wi_126._disabled_1k3wi_144:hover{border-color:#e2e8f0;color:#64748b}._file-name_1k3wi_156{color:#2d3748;font-family:var(--body-font);font-size:.9em}._topics-section_1k3wi_163{display:flex;flex-direction:column;gap:1rem;margin:2rem auto;max-width:800px;max-height:300px;overflow-y:auto;padding-right:8px}._topics-header_1k3wi_174{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid #e2e8f0;margin-bottom:.5rem}._topics-header_1k3wi_174 span{font-weight:600;color:#475569;font-size:.9rem}._topics-section_1k3wi_163::-webkit-scrollbar{width:6px}._topics-section_1k3wi_163::-webkit-scrollbar-track{background:#f1f5f9;border-radius:3px}._topics-section_1k3wi_163::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}._topics-section_1k3wi_163::-webkit-scrollbar-thumb:hover{background:#94a3b8}._topic-item_1k3wi_207{background:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:1rem 1.5rem;text-align:left;transition:all .3s ease;border:1px solid #e2e8f0;cursor:pointer;position:relative;display:flex;flex-direction:column;min-height:80px;flex-shrink:0}._topic-item_1k3wi_207:hover{border-color:#8b5cf6;box-shadow:0 4px 12px #0000000d;transform:translateY(-2px)}._topic-item_1k3wi_207._selected_1k3wi_229{border:2px solid #8b5cf6;background:#8b5cf60d}._topic-content_1k3wi_234{flex:1;display:flex;flex-direction:column;gap:.5rem}._topic-header-container_1k3wi_241{display:flex;align-items:center;justify-content:space-between;gap:1rem}._file-indicator_1k3wi_248{display:flex;align-items:center;gap:.5rem;font-size:.9em;color:#8b5cf6;font-weight:500}._file-indicator_1k3wi_248 svg{width:16px;height:16px}._topic-header_1k3wi_241{font-family:var(--heading-font);font-size:calc(var(--body-font-size) * 1.1);margin-bottom:.5rem;color:#2d3748;font-weight:700}._topic-item_1k3wi_207._selected_1k3wi_229 ._topic-header_1k3wi_241{color:#2d3748}._topic-description_1k3wi_274{font-family:var(--body-font);font-size:var(--body-font-size);color:#4a5568;line-height:1.5;font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}._topic-item_1k3wi_207._selected_1k3wi_229 ._topic-description_1k3wi_274{color:#4a5568}._control-buttons_1k3wi_292{display:flex;gap:1rem;justify-content:center;margin:2rem 0;padding-top:3rem}._control-buttons_1k3wi_292 button{border-radius:12px;border:none;padding:.8em 1.6em;font-size:1em;font-weight:500;font-family:var(--body-font);background:linear-gradient(135deg,#8b5cf6,#7c3aed);cursor:pointer;transition:all .3s ease;color:#fff;min-width:150px;box-shadow:0 4px 12px #8b5cf633}._control-buttons_1k3wi_292 button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #8b5cf64d}._control-buttons_1k3wi_292 button:disabled{background:#e2e8f0;opacity:.7;cursor:not-allowed;box-shadow:none}._session-info_1k3wi_328{font-family:var(--body-font);color:#2d3748;margin:1.5rem 0;font-weight:500}._timer-display_1k3wi_336{position:absolute;top:1.5rem;right:1.5rem;background:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:.8em 1.4em;border-radius:12px;border:1px solid #e2e8f0;color:#2d3748;font-family:var(--body-font);font-weight:500;box-shadow:0 4px 12px #0000000d}._modal-overlay_1k3wi_352{position:fixed;top:0;left:0;right:0;bottom:0;background:#2d3748b3;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}._modal-content_1k3wi_366{background:#fff;padding:0;border-radius:32px;width:95%;max-width:900px;max-height:95vh;position:relative;font-family:var(--body-font);color:#2d3748;border:none;box-shadow:0 32px 80px #00000026,0 16px 40px #0000001a,0 8px 20px #0000000d;overflow:hidden;display:flex;flex-direction:column}._modal-close_1k3wi_384{position:absolute;top:1.5rem;right:1.5rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#2d3748;transition:color .3s ease}._modal-close_1k3wi_384:hover{color:#8b5cf6}._flashcard-modal-header_1k3wi_401{padding:2rem 3rem 1rem;text-align:center;background:#fff;border-bottom:1px solid #f1f5f9}._flashcard-modal-header_1k3wi_401 h2{font-size:1.75rem;font-weight:700;color:#1e293b;margin:0;background:linear-gradient(135deg,#8b5cf6,#6366f1);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}._flashcard-container_1k3wi_420{flex:1;display:flex;align-items:center;justify-content:center;padding:3rem;background:linear-gradient(135deg,#fafbff,#f8fafc,#f1f5f9);min-height:500px}._flashcard_1k3wi_401{height:450px;width:100%;max-width:700px;cursor:pointer;display:flex;align-items:center;justify-content:center;position:relative}._flashcard-inner_1k3wi_442{position:relative;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:3rem 2.5rem;border-radius:24px;border:3px solid #e2e8f0;box-shadow:0 20px 60px #0000001f,0 8px 32px #00000014,0 4px 16px #0000000a;transition:all .4s cubic-bezier(.4,0,.2,1);overflow:hidden;background:linear-gradient(135deg,#fff,#f8fafc,#f1f5f9)}._flashcard_1k3wi_401._flipped_1k3wi_460 ._flashcard-inner_1k3wi_442{background:linear-gradient(135deg,#8b5cf6,#7c3aed,#6366f1);border-color:#8b5cf6;transform:scale(1.02)}._flashcard-front_1k3wi_466,._flashcard-back_1k3wi_467{position:absolute;top:3rem;left:2.5rem;right:2.5rem;bottom:3rem;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:opacity .4s cubic-bezier(.4,0,.2,1)}._flashcard-front_1k3wi_466{opacity:1}._flashcard_1k3wi_401._flipped_1k3wi_460 ._flashcard-front_1k3wi_466,._flashcard-back_1k3wi_467{opacity:0}._flashcard_1k3wi_401._flipped_1k3wi_460 ._flashcard-back_1k3wi_467{opacity:1}._flashcard-content_1k3wi_496{font-size:1.25rem;font-weight:600;text-align:center;line-height:1.7;color:#1e293b;max-width:100%;word-wrap:break-word;overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;flex:1;display:flex;align-items:center;justify-content:center;padding:1rem 0}._flashcard-back_1k3wi_467 ._flashcard-content_1k3wi_496{color:#fff;font-size:1.1rem;font-weight:500;text-shadow:0 2px 4px rgba(0,0,0,.1)}._flashcard-hint_1k3wi_520{font-size:.9rem;color:#64748b;margin-top:auto;padding-top:1.5rem;opacity:.8;font-weight:500;flex-shrink:0;text-transform:uppercase;letter-spacing:.5px}._flashcard_1k3wi_401._flipped_1k3wi_460 ._flashcard-hint_1k3wi_520{opacity:0}._flashcard-controls_1k3wi_536{display:flex;justify-content:center;align-items:center;gap:1rem;padding:2rem 3rem;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-top:1px solid #e2e8f0;flex-shrink:0}._nav-button_1k3wi_547{padding:1rem 2rem;border:none;background:linear-gradient(135deg,#8b5cf6,#7c3aed);color:#fff;border-radius:16px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);font-size:.95rem;min-width:140px;display:flex;align-items:center;justify-content:center;gap:.75rem;box-shadow:0 8px 24px #8b5cf640;position:relative;overflow:hidden}._nav-button_1k3wi_547:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}._nav-button_1k3wi_547:hover:not(:disabled):before{left:100%}._nav-button_1k3wi_547:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 12px 32px #8b5cf659;background:linear-gradient(135deg,#7c3aed,#6366f1)}._nav-button_1k3wi_547:disabled{opacity:.4;cursor:not-allowed;background:#e2e8f0;color:#94a3b8;transform:none;box-shadow:none}._progress-section_1k3wi_602{padding:2rem 3rem 1rem;background:#fff;flex-shrink:0}._progress-bar_1k3wi_608{width:100%;height:12px;background:#f1f5f9;border-radius:12px;overflow:hidden;box-shadow:inset 0 3px 6px #0000001a;position:relative}._progress-fill_1k3wi_618{height:100%;background:linear-gradient(90deg,#8b5cf6,#7c3aed,#6366f1);transition:width .6s cubic-bezier(.4,0,.2,1);border-radius:12px;position:relative;overflow:hidden}._progress-fill_1k3wi_618:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:_shimmer_1k3wi_1 2s infinite}@keyframes _shimmer_1k3wi_1{0%{transform:translate(-100%)}to{transform:translate(100%)}}._progress-stats_1k3wi_652{display:flex;justify-content:space-between;align-items:center;margin-top:1.25rem;color:#475569;font-weight:600}._progress-count_1k3wi_661,._progress-viewed_1k3wi_662{font-size:1rem;color:#64748b;font-weight:600}._modal-actions_1k3wi_668{display:flex;justify-content:center;margin-top:2rem}._flashcard-button_1k3wi_674{background:linear-gradient(135deg,#475569,#334155);color:#fff;border:none;padding:1em 2em;border-radius:12px;font-weight:500;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #47556933}._flashcard-button_1k3wi_674:hover{transform:translateY(-2px);box-shadow:0 6px 16px #4755694d;background:linear-gradient(135deg,#334155,#1e293b)}button._btn_1k3wi_692{background:linear-gradient(135deg,#8b5cf6,#7c3aed);color:#fff;border:none;padding:.8em 2em;border-radius:12px;font-weight:500;transition:all .3s ease;box-shadow:0 4px 12px #8b5cf633}button._btn_1k3wi_692:hover{transform:translateY(-2px);box-shadow:0 6px 16px #8b5cf64d}@media (max-width: 900px){._demo_1k3wi_1{max-width:98vw;padding:2rem .5rem}}@media (max-width: 768px){._demo_1k3wi_1{padding:2rem 1rem}._content_1k3wi_52{padding:1.5rem;background:none;border-radius:0}._control-buttons_1k3wi_292{flex-direction:column;align-items:center}._modal-content_1k3wi_366{width:95%;padding:1.5rem;max-height:95vh}._flashcard-container_1k3wi_420{padding:2rem 1.5rem;min-height:400px}._flashcard_1k3wi_401{height:350px;max-width:100%}._flashcard-front_1k3wi_466,._flashcard-back_1k3wi_467{padding:2rem 1.5rem}._flashcard-content_1k3wi_496{font-size:1rem;line-height:1.5}._flashcard-back_1k3wi_467 ._flashcard-content_1k3wi_496{font-size:.95rem}._flashcard-controls_1k3wi_536{gap:1rem;padding:1.5rem 2rem}._nav-button_1k3wi_547{padding:.8em 1.5em;font-size:.85rem;min-width:120px}._progress-section_1k3wi_602{padding:1.5rem 2rem 1rem}._flashcard-modal-header_1k3wi_401{padding:1.5rem 2rem .5rem}._flashcard-modal-header_1k3wi_401 h2{font-size:1.5rem}._input-group_1k3wi_71{flex-direction:column}._input-group_1k3wi_71 label{min-width:auto;text-align:center}._timer-display_1k3wi_336{position:relative;top:0;right:0;margin:0 auto 1.5rem;width:fit-content}}@media (max-width: 600px){._demo_1k3wi_1{padding:1.2rem .5rem;max-width:98vw}._modal-content_1k3wi_366{width:98%;padding:1rem;max-height:98vh}._flashcard-container_1k3wi_420{padding:1rem;min-height:300px}._flashcard_1k3wi_401{height:280px}._flashcard-front_1k3wi_466,._flashcard-back_1k3wi_467{padding:1.5rem 1rem}._flashcard-content_1k3wi_496{font-size:.9rem;line-height:1.4}._flashcard-back_1k3wi_467 ._flashcard-content_1k3wi_496{font-size:.85rem}._flashcard-hint_1k3wi_520{font-size:.75rem;padding-top:1rem}._flashcard-controls_1k3wi_536{flex-direction:column;gap:.75rem;padding:1rem}._nav-button_1k3wi_547{padding:.8em 1.2em;font-size:.8rem;min-width:100px;width:100%;max-width:250px;margin:0 auto}._progress-section_1k3wi_602{padding:1rem}._progress-stats_1k3wi_652{flex-direction:column;gap:.5rem;text-align:center;margin-top:.75rem}._progress-count_1k3wi_661,._progress-viewed_1k3wi_662{font-size:.85rem}._flashcard-modal-header_1k3wi_401{padding:1rem}._flashcard-modal-header_1k3wi_401 h2{font-size:1.25rem}}._file-content-modal_1k3wi_883 ._modal-content_1k3wi_366{max-width:800px;padding:2rem}._file-content-header_1k3wi_888{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid #e2e8f0}._file-content-title_1k3wi_897{display:flex;align-items:center;gap:1rem;font-size:1.2rem;font-weight:600;color:#2d3748}._file-content-title_1k3wi_897 svg{width:24px;height:24px;color:#8b5cf6}._file-content-body_1k3wi_912{text-align:left;font-size:1rem;line-height:1.6;color:#4a5568;max-height:60vh;overflow-y:auto;padding:1rem;background:#f8fafc;border-radius:12px;white-space:pre-wrap}._file-content-body_1k3wi_912::-webkit-scrollbar{width:8px}._file-content-body_1k3wi_912::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}._file-content-body_1k3wi_912::-webkit-scrollbar-thumb{background:#8b5cf6;border-radius:4px}._file-content-body_1k3wi_912::-webkit-scrollbar-thumb:hover{background:#7c3aed}._topic-actions_1k3wi_943{display:flex;justify-content:flex-end;margin-top:.5rem}._topic-actions_1k3wi_943 button{background:#ef4444;color:#fff;border:none;padding:.4em .8em;border-radius:8px;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .3s ease}._topic-actions_1k3wi_943 button:hover{background:#dc2626;transform:translateY(-1px)}button._btn_1k3wi_692:disabled{opacity:.6;cursor:not-allowed;background:#94a3b8;transform:none;box-shadow:none}button._btn_1k3wi_692:disabled:hover{transform:none;box-shadow:none}._flashcard-count-modal_1k3wi_979{display:flex;flex-direction:column;align-items:center;justify-content:center;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:linear-gradient(135deg,#f8fafc,#f1f5f9);padding:3rem 2.5rem 2.5rem;border-radius:28px;box-shadow:0 12px 48px #8b5cf62e,0 2px 8px #00000014;border:1.5px solid #e2e8f0;min-width:340px;min-height:220px;max-width:420px;z-index:1100;transition:box-shadow .3s,background .3s}._flashcard-count-modal_1k3wi_979 h3{font-size:1.5rem;font-weight:700;color:#6d28d9;margin-bottom:1.2rem;letter-spacing:.01em}._flashcard-count-modal_1k3wi_979 label{font-size:1.08rem;color:#6b7280;margin-bottom:.5rem;font-weight:500}._flashcard-count-modal_1k3wi_979 input[type=number]{font-size:1.1rem;padding:.9em 1.2em;border-radius:10px;border:1.5px solid #c7d2fe;margin-bottom:1.2rem;background:#f3f4f6;transition:border .2s,box-shadow .2s;box-shadow:0 2px 8px #8b5cf60f;color:#000}._flashcard-count-modal_1k3wi_979 input[type=number]:focus{outline:none;border:1.5px solid #8b5cf6;background:#fff;box-shadow:0 0 0 2px #c7d2fe;color:#000}._flashcard-count-modal_1k3wi_979 button{font-size:1.13rem;padding:.9em 1.3em;border-radius:10px;background:linear-gradient(90deg,#a78bfa,#8b5cf6);color:#fff;border:none;font-weight:600;margin-top:.7rem;box-shadow:0 4px 16px #8b5cf621;transition:background .2s,box-shadow .2s,transform .2s}._flashcard-count-modal_1k3wi_979 button:hover{background:linear-gradient(90deg,#8b5cf6,#a78bfa);transform:translateY(-2px) scale(1.03);box-shadow:0 8px 24px #8b5cf62e}._flashcard-count-modal_1k3wi_979 ._modal-close_1k3wi_384{position:absolute;top:1.2rem;right:1.2rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#6b7280;transition:color .2s;width:32px;height:32px;display:flex;align-items:center;justify-content:center}._flashcard-count-modal_1k3wi_979 ._modal-close_1k3wi_384:hover{color:#8b5cf6;background:#f3f4f6;border-radius:50%}@media (max-width: 600px){._flashcard-count-modal_1k3wi_979{min-width:90vw;max-width:98vw;padding:1.5rem .5rem;border-radius:16px}._flashcard-count-modal_1k3wi_979 h3{font-size:1.1rem}}._feedback-section_1k3wi_1091{margin-top:2.5rem;display:flex;flex-direction:column;align-items:center}._feedback-toggle_1k3wi_1098{background:linear-gradient(90deg,#a78bfa,#8b5cf6);color:#fff;border:none;padding:.85rem 2.2rem;border-radius:14px;font-size:1rem;font-weight:600;cursor:pointer;box-shadow:0 2px 8px #8b5cf61a;transition:background .2s,box-shadow .2s,color .2s;margin-bottom:1.2rem}._feedback-toggle_1k3wi_1098:hover{background:linear-gradient(90deg,#8b5cf6,#a78bfa);color:#fff;box-shadow:0 4px 16px #8b5cf62e}._feedback-form_1k3wi_1117{width:100%;max-width:480px;margin:0 auto;background:#f9f8ff;border-radius:18px;border:1.5px solid #e2e8f0;box-shadow:0 4px 24px #8b5cf61a,0 1.5px 6px #0000000a;padding:2.2rem 2rem 1.5rem;display:flex;flex-direction:column;align-items:center}._feedback-form_1k3wi_1117 h3{margin:0 0 .5rem;color:#5b21b6;font-size:1.25rem;font-weight:700;text-align:center}._feedback-form_1k3wi_1117 p{margin:0 0 1.5rem;color:#6b7280;font-size:1rem;text-align:center}._rating-section_1k3wi_1147{margin-bottom:1.5rem;width:100%;text-align:center}._rating-section_1k3wi_1147 label{display:block;margin-bottom:.7rem;color:#5b21b6;font-weight:600;font-size:1rem}._rating-stars_1k3wi_1159{display:flex;gap:.4rem;justify-content:center;align-items:center}._star-button_1k3wi_1165{background:none;border:none;font-size:2.1rem;color:#e5e7eb;cursor:pointer;transition:color .18s,transform .18s;padding:.18rem;border-radius:6px;outline:none}._star-button_1k3wi_1165:focus{outline:2px solid #a78bfa}._star-button_1k3wi_1165._star-active_1k3wi_1179,._star-button_1k3wi_1165:hover,._star-button_1k3wi_1165:focus{color:#fbbf24;transform:scale(1.13)}._feedback-input-section_1k3wi_1186{margin-bottom:1.5rem;width:100%}._feedback-input-section_1k3wi_1186 label{display:block;margin-bottom:.7rem;color:#5b21b6;font-weight:600;font-size:1rem}._feedback-input-section_1k3wi_1186 textarea{width:100%;padding:1.1rem 1rem;border:1.5px solid #e2e8f0;border-radius:10px;font-size:1rem;font-family:var(--body-font);background:#f3f4f6;color:#22223b;resize:vertical;min-height:110px;transition:border .2s,box-shadow .2s;box-shadow:0 1px 4px #8b5cf60a}._feedback-input-section_1k3wi_1186 textarea:focus{outline:none;border-color:#a78bfa;box-shadow:0 0 0 2px #c7d2fe}._char-count_1k3wi_1216{text-align:right;font-size:.85rem;color:#a1a1aa;margin-top:.18rem}._feedback-actions_1k3wi_1223{display:flex;gap:1.1rem;justify-content:center;width:100%;margin-top:.5rem}._submit-feedback_1k3wi_1230{background:linear-gradient(90deg,#a78bfa,#8b5cf6);color:#fff;border:none;padding:.85rem 2.2rem;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;box-shadow:0 2px 8px #8b5cf61a;transition:background .2s,box-shadow .2s,color .2s}._submit-feedback_1k3wi_1230:hover:not(:disabled){background:linear-gradient(90deg,#8b5cf6,#a78bfa);color:#fff;box-shadow:0 4px 16px #8b5cf62e}._submit-feedback_1k3wi_1230:disabled{background:#cbd5e1;color:#fff;cursor:not-allowed;box-shadow:none}._cancel-feedback_1k3wi_1253{background:#f3f4f6;color:#6b7280;border:1.5px solid #d1d5db;padding:.85rem 2.2rem;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,color .2s,border .2s}._cancel-feedback_1k3wi_1253:hover{background:#e5e7eb;color:#5b21b6;border-color:#a78bfa}@media (max-width: 600px){._feedback-form_1k3wi_1117{padding:1.1rem .5rem 1rem;max-width:98vw}._feedback-form_1k3wi_1117 h3{font-size:1.05rem}._feedback-form_1k3wi_1117 p{font-size:.93rem}._star-button_1k3wi_1165{font-size:1.5rem}._submit-feedback_1k3wi_1230,._cancel-feedback_1k3wi_1253{width:100%;padding:.85rem 0;font-size:.98rem}._feedback-actions_1k3wi_1223{flex-direction:column;gap:.7rem}}