:root{--red:#d60000;--red-bright:red;--red-dark:#840000;--ink:#262626;--gray:#4a4a4a;--muted:#8a8a8a;--line:#e4e4e4;--panel:#f2f2f2;--bg:#fff}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif}a{color:var(--red)}.container{max-width:1080px;margin:0 auto;padding:0 24px}.header{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10;background:#ffffffeb;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:68px;display:flex}.brand-left{align-items:center;gap:12px;display:flex}.hero{padding:48px 0 24px}.hero h1{letter-spacing:-.01em;margin:0 0 12px;font-size:32px;line-height:1.15}.hero p{color:var(--gray);max-width:680px;margin:0;font-size:16px}.accent{color:var(--red)}.card{border:1px solid 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(max-width:760px){.container{padding:0 14px}.form-grid,.grade-row{grid-template-columns:1fr!important}.hero h1{font-size:24px}.card{padding:16px}table.cmp-table{font-size:12px}table.cmp-table th,table.cmp-table td{padding:8px}.median{font-size:22px}#toast-container{left:14px;right:14px}.toast{max-width:none}}