@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;0,9..144,900;1,9..144,400;1,9..144,500&family=Inter:wght@400;500;600;700;800&display=swap");*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--white:#fff;--bg:#f7f8fc;--surface:#fff;--border:#e4e7f0;--border-dark:#cdd2e4;--ink:#0f1117;--ink-2:#3d4259;--ink-3:#7a80a0;--violet:#6c63ff;--violet-light:#ede9ff;--violet-dark:#4f48cc;--green:#16a34a;--green-light:#dcfce7;--yellow:#d97706;--yellow-light:#fef3c7;--red:#dc2626;--red-light:#fee2e2;--blue:#2563eb;--blue-light:#dbeafe;--font-display:"Fraunces",Georgia,serif;--font-body:"Inter",system-ui,sans-serif;--radius-sm:6px;--radius:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 3px rgba(15,17,23,.06),0 1px 2px rgba(15,17,23,.04);--shadow:0 4px 16px rgba(15,17,23,.08),0 1px 4px rgba(15,17,23,.04);--shadow-lg:0 16px 48px rgba(15,17,23,.12),0 4px 12px rgba(15,17,23,.06)}[data-theme=dark]{--white:#fff;--bg:#0e0e14;--surface:#16161f;--border:#2a2a36;--border-dark:#3a3a48;--ink:#f1f1f6;--ink-2:#b8b8c8;--ink-3:#7e7e94;--violet:#8b82ff;--violet-light:#211f3d;--violet-dark:#b3acff;--green:#4ade80;--green-light:#143822;--yellow:#fbbf24;--yellow-light:#3a2c08;--red:#f87171;--red-light:#3a1414;--blue:#60a5fa;--blue-light:#102a4d;--shadow-sm:0 1px 3px rgba(0,0,0,.4),0 1px 2px rgba(0,0,0,.3);--shadow:0 4px 16px rgba(0,0,0,.45),0 1px 4px rgba(0,0,0,.3);--shadow-lg:0 16px 48px rgba(0,0,0,.55),0 4px 12px rgba(0,0,0,.35)}html{font-size:16px;-webkit-font-smoothing:antialiased}body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.6;transition:background-color .2s ease,color .2s ease}a{color:inherit;text-decoration:none}button{cursor:pointer}button,input,textarea{font-family:var(--font-body)}h1,h2,h3{font-family:var(--font-display);font-weight:500}.num,.tabular-nums{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1,"tnum"}.container{max-width:1100px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 22px;border-radius:var(--radius);border:none;font-size:14px;font-weight:600;transition:all .15s;cursor:pointer;white-space:nowrap}.btn:active{transform:scale(.98)}.btn-primary{background:var(--violet);color:#fff}.btn-primary:hover{background:var(--violet-dark)}.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--border-dark)}.btn-outline:hover{border-color:var(--violet);color:var(--violet)}.btn-ghost{background:transparent;color:var(--ink-2)}.btn-ghost:hover{background:var(--bg)}.btn-lg{padding:14px 28px;font-size:15px;border-radius:var(--radius-lg)}.btn-sm{padding:7px 14px;font-size:13px}.card{border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card,.input{background:var(--surface)}.input{width:100%;border:1.5px solid var(--border);border-radius:var(--radius);padding:10px 14px;font-size:14px;color:var(--ink);outline:none;transition:border-color .15s}.input:focus{border-color:var(--violet)}.input::placeholder{color:var(--ink-3)}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge-violet{background:var(--violet-light);color:var(--violet-dark)}.badge-green{background:var(--green-light);color:var(--green)}.badge-yellow{background:var(--yellow-light);color:var(--yellow)}.badge-red{background:var(--red-light);color:var(--red)}.badge-blue{background:var(--blue-light);color:var(--blue)}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 85%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:8px}.nav-links{gap:4px;flex-shrink:0}.nav-more-wrap{position:relative}.nav-more-menu{position:absolute;top:calc(100% + 6px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:6px;min-width:150px;display:flex;flex-direction:column;gap:2px;z-index:110}.nav-more-item{display:block;padding:8px 12px;font-size:14px;font-weight:500;color:var(--ink-2);border-radius:calc(var(--radius) - 4px);text-decoration:none;white-space:nowrap}.nav-more-item:hover{background:var(--bg);color:var(--ink)}.show-mobile-only{display:none}@media (max-width:640px){.show-desktop-only{display:none}.show-mobile-only{display:inline-flex}.nav-inner{height:52px;gap:4px}.nav-links{gap:2px}.nav-links .btn{padding:6px 10px;font-size:13px}.nav-logo{font-size:15px;gap:6px}.nav-logo-icon{width:24px;height:24px}}.nav-logo{gap:8px;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.3px}.nav-logo,.nav-logo-icon{display:flex;align-items:center}.nav-logo-icon{width:32px;height:32px;justify-content:center;flex-shrink:0}.nav-logo-icon img{object-fit:contain}.nav-logo-icon img,.nav-logo-icon svg{width:100%;height:100%}.nav-logo span{color:var(--violet)}.nav-links{display:flex;align-items:center;gap:8px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:13px;font-weight:500;color:var(--ink-2)}.form-error{font-size:13px;color:var(--red);margin-top:4px}.grade-a{background:var(--green-light);color:var(--green)}.grade-b{background:var(--blue-light);color:var(--blue)}.grade-c{background:var(--yellow-light);color:var(--yellow)}.grade-d,.grade-f{background:var(--red-light);color:var(--red)}@media (max-width:640px){.container{padding:0 16px}.btn-lg{padding:12px 20px;font-size:14px}}