@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";.toast-container[data-v-46d2d59c]{z-index:9999;flex-direction:column;gap:8px;max-width:360px;display:flex;position:fixed;top:16px;right:16px}.toast-item[data-v-46d2d59c]{cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:10px;align-items:center;gap:10px;padding:12px 18px;font-size:14px;font-weight:500;display:flex;box-shadow:0 4px 20px #00000026}.toast-icon[data-v-46d2d59c]{flex-shrink:0;font-size:16px}.toast-success[data-v-46d2d59c]{color:#fff;background:#22c55ef2}.toast-error[data-v-46d2d59c]{color:#fff;background:#ef4444f2}.toast-info[data-v-46d2d59c]{color:#fff;background:#6366f1f2}.toast-warning[data-v-46d2d59c]{color:#fff;background:#f59e0bf2}.toast-enter-active[data-v-46d2d59c]{transition:all .3s}.toast-leave-active[data-v-46d2d59c]{transition:all .2s}.toast-enter-from[data-v-46d2d59c],.toast-leave-to[data-v-46d2d59c]{opacity:0;transform:translate(80px)}.chat-widget[data-v-1914de06]{z-index:200;position:fixed;bottom:20px;right:20px}@media (max-width:768px){.chat-widget[data-v-1914de06]{bottom:80px;right:12px}}.chat-fab[data-v-1914de06]{background:var(--gradient);color:#fff;cursor:pointer;width:56px;height:56px;box-shadow:var(--neon-glow-lg);transition:all var(--transition);border:none;border-radius:50%;position:relative}.chat-fab[data-v-1914de06]:hover{transform:scale(1.08)}.chat-fab.active[data-v-1914de06]{background:var(--bg-card);color:var(--text);box-shadow:var(--shadow-lg);border:1px solid var(--border)}.chat-fab__icon[data-v-1914de06]{font-size:24px}.chat-fab__badge[data-v-1914de06]{background:var(--error);color:#fff;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 5px;font-size:11px;font-weight:700;display:flex;position:absolute;top:-4px;right:-4px}.chat-popup[data-v-1914de06]{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:360px;height:480px;box-shadow:var(--shadow-xl);flex-direction:column;display:flex;position:absolute;bottom:68px;right:0;overflow:hidden}@media (max-width:768px){.chat-popup[data-v-1914de06]{width:calc(100vw - 24px);height:60vh;right:-8px}}.chat-popup__header[data-v-1914de06]{border-bottom:1px solid var(--border);background:var(--bg-elevated);justify-content:space-between;align-items:center;gap:6px;padding:8px 12px;display:flex}.chat-tabs[data-v-1914de06]{flex:1;gap:4px;display:flex}.chat-tab[data-v-1914de06]{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;padding:7px 10px;font-family:inherit;font-size:12px;font-weight:600;transition:all .15s}.chat-tab[data-v-1914de06]:hover{background:var(--bg-hover);color:var(--text)}.chat-tab.active[data-v-1914de06]{background:var(--gradient);color:#fff}.tg-link[data-v-1914de06]{color:var(--neon);font-size:12px;font-weight:500;text-decoration:none;display:inline-block}.chat-popup__close[data-v-1914de06]{color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:4px;font-size:16px}.chat-pane[data-v-1914de06]{flex-direction:column;flex:1;display:flex;overflow:hidden}.chat-subhead[data-v-1914de06]{border-bottom:1px solid var(--border);padding:8px 14px;font-size:12px}.ai-pane[data-v-1914de06]{background:var(--bg)}.ai-empty[data-v-1914de06]{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:30px 20px;display:flex}.ai-empty h4[data-v-1914de06]{margin:6px 0 4px;font-size:15px}.ai-empty p[data-v-1914de06]{max-width:280px;font-size:13px;line-height:1.5}.ai-icon[data-v-1914de06]{font-size:40px}.spin[data-v-1914de06]{border:2px solid var(--border);border-top-color:var(--neon);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin-1914de06}@keyframes spin-1914de06{to{transform:rotate(360deg)}}.ai-messages[data-v-1914de06]{flex-direction:column;flex:1;gap:8px;padding:12px;display:flex;overflow-y:auto}.ai-hint[data-v-1914de06]{color:var(--text-muted);background:var(--bg-card);border:1px dashed var(--border);border-radius:10px;padding:10px 12px;font-size:12px}.ai-msg[data-v-1914de06]{display:flex}.ai-msg-user[data-v-1914de06]{justify-content:flex-end}.ai-msg-body[data-v-1914de06]{white-space:pre-wrap;word-wrap:break-word;border-radius:14px;max-width:78%;padding:8px 12px;font-size:13px;line-height:1.5}.ai-msg-user .ai-msg-body[data-v-1914de06]{background:var(--gradient);color:#fff;border-bottom-right-radius:4px}.ai-msg-assistant .ai-msg-body[data-v-1914de06]{background:var(--bg-card);color:var(--text);border:1px solid var(--border);border-bottom-left-radius:4px}.typing[data-v-1914de06]{gap:4px;display:inline-flex;padding:10px 14px!important}.typing span[data-v-1914de06]{background:var(--text-muted);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite bounce-1914de06}.typing span[data-v-1914de06]:nth-child(2){animation-delay:.15s}.typing span[data-v-1914de06]:nth-child(3){animation-delay:.3s}@keyframes bounce-1914de06{0%,80%,to{opacity:.2;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.ai-form[data-v-1914de06]{border-top:1px solid var(--border);background:var(--bg-card);gap:6px;padding:8px 10px;display:flex}.ai-input[data-v-1914de06]{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:18px;flex:1;padding:9px 12px;font-family:inherit;font-size:13px}.ai-input[data-v-1914de06]:focus{border-color:var(--neon);outline:none}.ai-send[data-v-1914de06]{background:var(--gradient);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;width:36px;height:36px;font-size:14px}.ai-send[data-v-1914de06]:disabled{opacity:.4;cursor:not-allowed}.chat-slide-enter-active[data-v-1914de06]{transition:all .25s cubic-bezier(.4,0,.2,1)}.chat-slide-leave-active[data-v-1914de06]{transition:all .2s}.chat-slide-enter-from[data-v-1914de06],.chat-slide-leave-to[data-v-1914de06]{opacity:0;transform:translateY(20px)scale(.95)}.bg-picker-overlay[data-v-f386e01f]{z-index:120;background:#0000008c;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.bg-picker-card[data-v-f386e01f]{background:var(--bg-card);color:var(--text);width:100%;max-width:760px;box-shadow:var(--shadow-lg);border:1px solid var(--border);border-radius:20px;padding:32px}.bg-picker-title[data-v-f386e01f]{margin:0 0 8px;font-size:24px}.bg-picker-sub[data-v-f386e01f]{color:var(--text-muted);margin:0 0 24px}.bg-picker-options[data-v-f386e01f]{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.bg-picker-option[data-v-f386e01f]{background:var(--bg);border:1px solid var(--border);text-align:left;cursor:pointer;color:var(--text);border-radius:14px;padding:20px;transition:transform .15s,border-color .15s,box-shadow .15s}.bg-picker-option[data-v-f386e01f]:hover:not(:disabled){border-color:var(--neon);transform:translateY(-2px);box-shadow:0 6px 20px #0000001f}.bg-picker-option[data-v-f386e01f]:disabled{opacity:.6;cursor:wait}.bg-picker-option.loading[data-v-f386e01f]{border-color:var(--neon)}.bg-picker-icon[data-v-f386e01f]{margin-bottom:10px;font-size:28px}.bg-picker-option-title[data-v-f386e01f]{margin-bottom:6px;font-size:16px;font-weight:600}.bg-picker-option-desc[data-v-f386e01f]{color:var(--text-muted);margin-bottom:10px;font-size:13px;line-height:1.45}.bg-picker-option-course[data-v-f386e01f]{border-top:1px dashed var(--border);padding-top:8px}@media (max-width:640px){.bg-picker-overlay[data-v-f386e01f]{align-items:flex-start;padding:8px;overflow-y:auto}.bg-picker-card[data-v-f386e01f]{border-radius:16px;margin-top:12px;margin-bottom:12px;padding:18px}.bg-picker-title[data-v-f386e01f]{font-size:20px;line-height:1.3}.bg-picker-sub[data-v-f386e01f]{margin-bottom:16px;font-size:13px}.bg-picker-options[data-v-f386e01f]{grid-template-columns:1fr;gap:10px}.bg-picker-option[data-v-f386e01f]{border-radius:12px;padding:14px}.bg-picker-icon[data-v-f386e01f]{margin-bottom:6px;font-size:22px}.bg-picker-option-title[data-v-f386e01f]{font-size:15px}.bg-picker-option-desc[data-v-f386e01f]{margin-bottom:6px;font-size:12px}}.scroll-top-btn{bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:90;border:1px solid var(--border);background:var(--bg-card);width:44px;height:44px;color:var(--text);cursor:pointer;box-shadow:var(--shadow-lg);border-radius:50%;justify-content:center;align-items:center;font-size:20px;display:flex;position:fixed;right:16px}.scroll-top-btn:hover{background:var(--neon);color:#fff}@media (min-width:768px){.scroll-top-btn{bottom:32px;right:32px}}.fade-enter-active,.fade-leave-active{transition:opacity .2s}.fade-enter-from,.fade-leave-to{opacity:0}:root{--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", "Consolas", monospace;--radius:16px;--radius-sm:10px;--radius-xs:6px;--radius-full:9999px;--transition:.25s cubic-bezier(.4, 0, .2, 1);--max-width:1280px;--neon:#6366f1;--neon2:#8b5cf6;--neon3:#a78bfa;--neon-glow:0 4px 24px #6366f140;--neon-glow-lg:0 8px 40px #6366f159;--gradient:linear-gradient(135deg, #6366f1, #8b5cf6);--gradient-warm:linear-gradient(135deg, #f59e0b, #ef4444);--gradient-cool:linear-gradient(135deg, #06b6d4, #3b82f6);--gradient-green:linear-gradient(135deg, #10b981, #22c55e);--gradient-surface:linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);--bg:#f0f2f5;--bg-card:#fff;--bg-sidebar:#fff;--bg-hover:#f5f6f8;--bg-active:#eef0f4;--bg-elevated:#fff;--text:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;--border:#e5e7eb;--border-light:#f3f4f6;--shadow-xs:0 1px 2px #0000000a;--shadow:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 25px -3px #00000014, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 40px -8px #0000001a;--success:#10b981;--success-bg:#10b98114;--warning:#f59e0b;--warning-bg:#f59e0b14;--error:#ef4444;--error-bg:#ef444414;--info:#3b82f6;--info-bg:#3b82f614}[data-theme=dark]{--bg:#0c0f1a;--bg-card:#161b2e;--bg-sidebar:#131827;--bg-hover:#1e2540;--bg-active:#252d4a;--bg-elevated:#1a2038;--text:#e8eaf0;--text-secondary:#a0a8c0;--text-muted:#5c6480;--border:#232a40;--border-light:#1e2438;--shadow-xs:0 1px 2px #0003;--shadow:0 2px 6px #00000040;--shadow-md:0 4px 12px #0000004d;--shadow-lg:0 10px 30px #00000059;--shadow-xl:0 20px 50px #0006;--neon-glow:0 4px 30px #6366f14d}[data-page=landing]{--bg:#06060f;--bg-card:#ffffff0a;--text:#f1f5f9;--text-secondary:#a5b4fc;--text-muted:#6366f1;--border:#ffffff14;--shadow:0 4px 24px #0006}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}a{color:var(--neon);transition:color var(--transition);text-decoration:none}a:hover{color:var(--neon2)}::selection{color:var(--text);background:#6366f133}.btn{border-radius:var(--radius-sm);font-family:var(--font);cursor:pointer;transition:all var(--transition);border:none;justify-content:center;align-items:center;gap:8px;padding:11px 22px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn-primary{background:var(--gradient);color:#fff;box-shadow:var(--neon-glow)}.btn-primary:hover{box-shadow:var(--neon-glow-lg);transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-xs)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--neon);color:var(--neon)}.btn-ghost{color:var(--text-secondary);background:0 0;border:none}.btn-ghost:hover{color:var(--neon);background:var(--bg-hover)}.btn-sm{border-radius:var(--radius-xs);padding:7px 14px;font-size:13px}.btn-lg{border-radius:var(--radius);padding:14px 32px;font-size:16px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:all var(--transition);padding:24px;position:relative}.card:hover{box-shadow:var(--shadow-md)}.card-gradient{background:linear-gradient(var(--bg-card), var(--bg-card)) padding-box, var(--gradient) border-box;border:1px solid #0000}.card-glass{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#fff9;border:1px solid #ffffff4d}[data-theme=dark] .card-glass{background:#161b2eb3;border:1px solid #ffffff0f}.card-interactive{cursor:pointer}.card-interactive:hover{box-shadow:var(--shadow-lg);border-color:var(--neon);transform:translateY(-2px)}.progress-bar{background:var(--bg-hover);border-radius:var(--radius-full);width:100%;height:8px;position:relative;overflow:hidden}.progress-bar__fill{background:var(--gradient);border-radius:var(--radius-full);height:100%;transition:width .6s cubic-bezier(.4,0,.2,1);position:relative}.progress-bar__fill:after{content:"";background:linear-gradient(90deg,#0000 0%,#fff3 50%,#0000 100%);animation:2s infinite shimmer-bar;position:absolute;top:0;bottom:0;left:0;right:0}@keyframes shimmer-bar{0%{transform:translate(-100%)}to{transform:translate(200%)}}.progress-bar-lg{height:12px}.progress-bar-sm{height:4px}.badge{border-radius:var(--radius-full);letter-spacing:.02em;align-items:center;gap:5px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--success-bg);color:var(--success)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-info{background:var(--info-bg);color:var(--info)}.badge-neon{color:var(--neon);background:#6366f11a}.badge-gradient{background:var(--gradient);color:#fff}.app-layout{min-height:100vh;display:flex}.app-sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border);width:280px;height:100vh;transition:width var(--transition);flex-shrink:0;position:sticky;top:0;overflow-y:auto}.app-sidebar.collapsed{width:0;overflow:hidden}.app-sidebar::-webkit-scrollbar{width:4px}.app-sidebar::-webkit-scrollbar-track{background:0 0}.app-sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.app-main{flex-direction:column;flex:1;min-width:0;display:flex}.app-header{background:var(--bg-card);border-bottom:1px solid var(--border);z-index:10;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd9;align-items:center;gap:12px;padding:12px 24px;display:flex;position:sticky;top:0}[data-theme=dark] .app-header{background:#161b2ed9}.app-content{flex:1;width:100%;max-width:920px;margin:0 auto;padding:28px}.section-header{align-items:center;gap:12px;margin-bottom:16px;display:flex}.section-header h3{font-size:18px;font-weight:700}.section-header:after{content:"";background:var(--border);flex:1;height:1px}.bottom-nav{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--border);padding:6px 0 env(safe-area-inset-bottom,6px);z-index:100;background:#ffffffd9;display:none;position:fixed;bottom:0;left:0;right:0}[data-theme=dark] .bottom-nav{background:#0c0f1ae0}.bottom-nav__items{justify-content:space-around;list-style:none;display:flex}.bottom-nav__item{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition);flex-direction:column;align-items:center;gap:2px;padding:6px 16px;font-size:11px;font-weight:500;display:flex}.bottom-nav__item:hover{color:var(--text-secondary)}.bottom-nav__item.active{color:var(--neon);background:#6366f114}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.animate-in{animation:.4s cubic-bezier(.4,0,.2,1) fadeInUp}@media (max-width:768px){.app-sidebar{z-index:50;width:300px;box-shadow:var(--shadow-xl);transition:transform .3s cubic-bezier(.4,0,.2,1);position:fixed;transform:translate(-100%)}.app-sidebar.open{transform:translate(0)}.app-content{padding:16px 16px 88px}.bottom-nav{display:block}.btn-lg{width:100%}.app-header{padding:10px 16px}}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-sm{font-size:14px}.text-xs{font-size:12px}.font-mono{font-family:var(--font-mono)}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.gap-1{gap:8px}.gap-2{gap:16px}.gap-3{gap:24px}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-between{justify-content:space-between}.grid{display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}@media (min-width:769px) and (max-width:1024px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}input[type=text],input[type=email],input[type=password],input[type=date],select{font-family:var(--font)}.diff-badge{text-transform:uppercase;letter-spacing:.3px;border-radius:12px;flex-shrink:0;padding:3px 10px;font-size:11px;font-weight:700;display:inline-block}.diff-easy{color:#16a34a;background:#22c55e26}.diff-medium{color:#b45309;background:#eab30826}.diff-hard{color:#dc2626;background:#ef444426}.status-pill{text-transform:uppercase;letter-spacing:.3px;border-radius:10px;padding:3px 9px;font-size:10px;font-weight:700;display:inline-block}.status-pill.st-done{color:#16a34a;background:#22c55e26}.status-pill.st-pending{color:#b45309;background:#eab30826}.status-pill.st-fail{color:#dc2626;background:#ef444426}.status-dot{background:var(--border);border-radius:50%;flex-shrink:0;width:8px;height:8px;display:inline-block}.status-dot.st-done{background:#22c55e}.status-dot.st-pending{background:#eab308}.status-dot.st-fail{background:#ef4444}
