.snfl-guide{--blue:#013369;--red:#d50a0a;--ink:#111;--line:#dce3eb;box-sizing:border-box;max-width:1120px;margin:0 auto;background:#fff;color:#283344;font-family:'Poppins',Arial,Helvetica,sans-serif;font-size:17px;line-height:1.75;padding:24px 16px 48px;text-align:left;color-scheme:light}
.snfl-guide *{box-sizing:border-box}.snfl-guide [hidden]{display:none!important}.snfl-guide h2,.snfl-guide h3,.snfl-guide h4{color:#111;font-family:inherit;line-height:1.2;text-transform:none;letter-spacing:-.025em;margin:0 0 18px;font-weight:800}.snfl-guide h2{font-size:clamp(34px,6vw,62px)}.snfl-guide h3{font-size:clamp(25px,4vw,34px)}.snfl-guide h4{font-size:20px}.snfl-guide p{margin:0 0 16px}.snfl-guide a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.snfl-guide a:hover{color:var(--red)}.snfl-guide a:focus-visible,.snfl-guide button:focus-visible,.snfl-guide input:focus-visible,.snfl-guide summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.snfl-guide header{border-top:5px solid var(--blue);padding:32px 0 28px;position:relative}.snfl-guide header:before{content:'';position:absolute;top:-5px;right:0;width:25%;height:5px;background:var(--red)}.snfl-guide .eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--blue);margin-bottom:14px}.snfl-guide .lead{font-size:20px;max-width:760px}.snfl-guide .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:24px 0}.snfl-guide .stat{background:#f5f7fa;padding:18px}.snfl-guide .stat strong{display:block;font-size:34px;line-height:1.2;color:var(--blue)}.snfl-guide .stat span{font-size:14px}.snfl-guide nav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}.snfl-guide nav a{border:1px solid var(--line);padding:9px 13px;border-radius:6px;text-decoration:none;font-weight:700;font-size:14px;background:white;color:var(--blue)}.snfl-guide nav a:hover{background:var(--blue);color:white;border-color:var(--blue)}.snfl-guide .search{background:#f5f7fa;border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:32px}.snfl-guide label{font-size:14px;font-weight:700;color:#111;display:block;margin-bottom:8px}.snfl-guide input[type=search]{display:block;width:100%;max-width:100%;font:inherit;padding:12px 14px;border:1px solid #8c9aab;border-radius:6px;background:#fff;color:#111;min-height:48px}.snfl-guide .search p{font-size:13px;margin:8px 0 0;color:#455569}.snfl-guide section{scroll-margin-top:30px;margin:0 0 42px;padding-top:20px;border-top:1px solid var(--line)}.snfl-guide .section-no{font-size:12px;letter-spacing:.12em;color:var(--red);font-weight:800;margin-bottom:8px}.snfl-guide .grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.snfl-guide .card{border:1px solid var(--line);border-radius:10px;padding:22px;background:#fff}.snfl-guide .card p:last-child{margin-bottom:0}.snfl-guide .note{padding:18px 22px;border-left:4px solid var(--red);background:#fff5f5;border-radius:0 8px 8px 0;margin:20px 0}.snfl-guide .note.blue{background:#f1f6fc;border-color:var(--blue)}.snfl-guide details{border:1px solid var(--line);border-radius:8px;margin:10px 0;overflow:hidden;background:white}.snfl-guide summary{cursor:pointer;list-style:none;padding:17px 48px 17px 18px;position:relative;font-weight:700;color:#111;line-height:1.45}.snfl-guide summary::-webkit-details-marker{display:none}.snfl-guide summary:after{content:'+';position:absolute;right:20px;top:14px;color:var(--blue);font-size:24px}.snfl-guide details[open]>summary{background:#f5f7fa}.snfl-guide details[open]>summary:after{content:'−'}.snfl-guide .answer{padding:18px}.snfl-guide .answer p:last-child{margin-bottom:0}.snfl-guide .points{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:20px 0}.snfl-guide .point{padding:18px 12px;border-radius:8px;background:var(--blue);color:#fff}.snfl-guide .point:first-child{background:var(--red)}.snfl-guide .point b{font-size:38px;display:block;line-height:1.1}.snfl-guide .point span{font-size:13px;display:block;line-height:1.4;margin-top:9px}.snfl-guide .field{display:flex;min-height:150px;border:2px solid var(--blue);border-radius:10px;overflow:hidden;margin:18px 0;background:repeating-linear-gradient(to right,#f2f6fb 0,#f2f6fb calc(10% - 1px),#b9c9dc calc(10% - 1px),#b9c9dc 10%)}.snfl-guide .end{width:12%;background:var(--blue);color:white;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;writing-mode:vertical-rl;letter-spacing:.12em}.snfl-guide .end:last-child{background:var(--red)}.snfl-guide .middle{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;color:var(--blue);padding:12px}.snfl-guide .middle strong{font-size:28px;line-height:1.3}.snfl-guide .caption{font-size:13px;color:#526174}.snfl-guide .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0}.snfl-guide .step{padding:15px;background:#f5f7fa;border-top:3px solid var(--blue);border-radius:4px}.snfl-guide .step b{display:block;color:var(--blue);font-size:20px}.snfl-guide .step span{font-size:14px}.snfl-guide .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;margin:18px 0}.snfl-guide table{border-collapse:collapse;width:100%;font-size:15px;margin:0;background:white;color:#283344}.snfl-guide th,.snfl-guide td{padding:12px 15px;text-align:left;border:0;border-bottom:1px solid var(--line);vertical-align:top}.snfl-guide th{background:var(--blue);color:white;font-weight:700}.snfl-guide tr:nth-child(even) td{background:#f5f7fa}.snfl-guide tr:last-child td{border-bottom:0}.snfl-guide .division ul{list-style:none;padding:0;margin:0}.snfl-guide .division li{padding:8px 0;border-top:1px solid var(--line);font-size:15px}.snfl-guide .conference{display:inline-block;background:var(--red);color:white;font-size:12px;font-weight:800;letter-spacing:.06em;padding:5px 9px;border-radius:4px;margin-bottom:10px}.snfl-guide .conference.nfc{background:var(--blue)}.snfl-guide .glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin:0}.snfl-guide .term{padding:14px 0;border-bottom:1px solid var(--line)}.snfl-guide dt{font-weight:800;color:var(--blue);margin:0}.snfl-guide dd{margin:4px 0 0;font-size:15px}.snfl-guide .sources{font-size:14px;color:#455569}.snfl-guide .sources ul{padding-left:20px}.snfl-guide footer{border-top:3px solid var(--blue);padding-top:20px;font-size:13px}.snfl-guide .tools{display:flex;gap:8px;margin:0 0 16px}.snfl-guide button{font:inherit;font-size:13px;background:white;border:1px solid var(--line);border-radius:5px;color:var(--blue);padding:9px 12px;cursor:pointer}.snfl-guide button:hover{background:#f1f6fc}
@media(max-width:640px){.snfl-guide{font-size:16px;padding:12px 10px 32px}.snfl-guide .lead{font-size:18px}.snfl-guide .stats{grid-template-columns:repeat(2,1fr)}.snfl-guide .stat{padding:14px}.snfl-guide .grid,.snfl-guide .glossary{grid-template-columns:1fr}.snfl-guide .points{grid-template-columns:repeat(2,1fr)}.snfl-guide .point:first-child{grid-column:1/-1}.snfl-guide .steps{grid-template-columns:repeat(2,1fr)}.snfl-guide .card{padding:18px}.snfl-guide nav a{flex:1 1 30%;text-align:center;padding:10px 8px;font-size:13px}.snfl-guide th,.snfl-guide td{padding:10px;font-size:14px}.snfl-guide .middle strong{font-size:23px}.snfl-guide header{padding-top:24px}}
/* Refined typography and a black masthead. Keep changes scoped to the guide. */
.snfl-guide header{background:#0b0b0d;color:#fff;border-top:0;border-radius:14px;padding:32px 30px 26px;margin-bottom:24px}
.snfl-guide header:before{display:none}
.snfl-guide header h2{color:#fff!important;font-size:clamp(36px,5vw,52px);font-weight:800;letter-spacing:-.035em}
.snfl-guide header .eyebrow{color:#fff;font-size:12px;opacity:.8;letter-spacing:.14em}
.snfl-guide header .lead{color:#fff;font-size:18px;line-height:1.7;max-width:790px}
.snfl-guide header .stats{margin-bottom:0;border:1px solid #34343b;background:#34343b;border-radius:9px}
.snfl-guide header .stat{background:#18181d;color:#ddd}
.snfl-guide header .stat strong{color:#fff;font-size:32px;font-weight:700}
.snfl-guide header .stat span{font-size:13px;line-height:1.5;display:block;margin-top:4px}
.snfl-guide h3{font-size:clamp(24px,3.2vw,30px);font-weight:700;line-height:1.3}
.snfl-guide h4{font-size:19px;font-weight:700;line-height:1.4}
.snfl-guide summary{font-family:'Poppins',Arial,Helvetica,sans-serif;font-size:17px;font-weight:600;line-height:1.55;padding:18px 56px 18px 20px}
.snfl-guide details>summary::marker{content:''}
/* Draw the plus/minus in CSS: no HTML entity or font glyph to escape. */
.snfl-guide details>summary::before,.snfl-guide details>summary::after{content:''!important;position:absolute;display:block;top:50%;right:21px;background:var(--blue);border:0;border-radius:1px;margin:0;padding:0;float:none;box-shadow:none}
.snfl-guide details>summary::before{width:14px;height:2px;transform:translateY(-50%)}
.snfl-guide details>summary::after{width:2px;height:14px;right:27px;transform:translateY(-50%);transition:transform .15s ease}
.snfl-guide details[open]>summary::after{content:''!important;transform:translateY(-50%) scaleY(0)}
.snfl-guide nav a{font-size:14px;font-weight:600;line-height:1.45;min-height:44px;display:flex;align-items:center;justify-content:center}
.snfl-guide input,.snfl-guide button,.snfl-guide table{font-family:'Poppins',Arial,Helvetica,sans-serif}
@media(max-width:640px){.snfl-guide{font-size:16px;line-height:1.75}.snfl-guide header{padding:24px 18px 20px;border-radius:10px}.snfl-guide header h2{font-size:36px}.snfl-guide header .lead{font-size:16px}.snfl-guide header .stat{padding:13px}.snfl-guide header .stat strong{font-size:28px}.snfl-guide h3{font-size:24px}.snfl-guide h4{font-size:18px}.snfl-guide summary{font-size:16px;padding:16px 50px 16px 16px}.snfl-guide nav a{font-size:13px}.snfl-guide .answer{padding:16px}}
@media print{.snfl-guide nav,.snfl-guide .search,.snfl-guide .tools{display:none}.snfl-guide{font-size:12pt;max-width:none}.snfl-guide details{break-inside:avoid}.snfl-guide details:not([open]) .answer{display:block}.snfl-guide .grid{grid-template-columns:1fr}}