:root{--sp-blue:#1565C0;--sp-green:#2E7D32;--sp-orange:#F57C00;--sp-bg:#FAFAFA;--sp-text:#212121;--sp-muted:#5f6b7a;--sp-border:#dbe3ec;--sp-soft-blue:#eaf3ff;--sp-soft-green:#edf7ef;--sp-soft-orange:#fff4e8;--sp-radius:18px;--sp-shadow:0 10px 30px rgba(21,101,192,.08)}
.sp-block{background:#fff;border:1px solid var(--sp-border);border-radius:var(--sp-radius);box-shadow:var(--sp-shadow);padding:24px;margin:24px 0;color:var(--sp-text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}.sp-block *{box-sizing:border-box}.sp-block h2,.sp-block h3{font-family:Poppins,Inter,system-ui,sans-serif;margin-top:0;color:var(--sp-blue);line-height:1.25}.sp-label{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--sp-green);margin-bottom:10px}.sp-label:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--sp-orange)}.sp-topic-header{background:linear-gradient(135deg,var(--sp-blue),#0d47a1);color:white;border:0}.sp-topic-header h1{font-family:Poppins,Inter,sans-serif;color:white;font-size:40px;line-height:1.1;margin:0 0 14px}.sp-meta{display:flex;flex-wrap:wrap;gap:10px}.sp-pill{display:inline-flex;border-radius:999px;padding:7px 12px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);font-size:14px}.sp-superpoint{border-left:8px solid var(--sp-orange);background:var(--sp-soft-orange);font-size:22px;font-weight:700}.sp-list{padding-left:22px}.sp-list li{margin:8px 0}.sp-note-list p{margin:10px 0}.sp-answer-toggle{appearance:none;border:0;border-radius:999px;background:var(--sp-blue);color:#fff;font-weight:700;padding:10px 16px;cursor:pointer;margin-top:12px}.sp-answer-toggle:hover{filter:brightness(.95)}.sp-answer{margin-top:14px;padding:16px;border-radius:14px;background:var(--sp-soft-green);border:1px solid #c9e7cf}.sp-q{font-weight:800;font-size:18px;margin-bottom:12px}.sp-options{display:grid;gap:8px;margin:12px 0}.sp-option{padding:10px 12px;border:1px solid var(--sp-border);border-radius:12px;background:#fff}.sp-table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--sp-border);border-radius:14px}.sp-table th{background:var(--sp-blue);color:#fff;text-align:left}.sp-table th,.sp-table td{padding:12px;border-bottom:1px solid var(--sp-border)}.sp-table tr:last-child td{border-bottom:0}.sp-revision{background:var(--sp-soft-blue);border-color:#cfe4ff}.sp-pearl{background:var(--sp-soft-green);border-color:#cde9d2}.sp-mnemonic{background:#fff8e1;border-color:#ffe0a3}.sp-formula{font-size:22px;font-weight:800;text-align:center;background:linear-gradient(135deg,#fff,#f8fbff)}.sp-references ol{margin-bottom:0}.sp-empty{opacity:.7;font-style:italic}.sp-block img{max-width:100%;height:auto;border-radius:14px}.sp-capitalize{text-transform:capitalize}.sp-uppercase{text-transform:uppercase}.sp-bold{font-weight:800}@media(max-width:640px){.sp-block{padding:18px}.sp-topic-header h1{font-size:30px}.sp-superpoint,.sp-formula{font-size:19px}}