:root{color-scheme:light;--ink:#26312b;--muted:#64716a;--green:#286b4b;--line:#dce5dc;--paper:#fffefa;--wash:#f2f5ef}
*{box-sizing:border-box}
body{margin:0;background:var(--wash);color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--green);text-underline-offset:3px}
a:hover{color:#174e36}
.guide-wrap{max-width:860px;margin:0 auto;padding:24px 18px 56px}
.guide-nav{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:8px 2px 22px;font-size:14px}
.guide-nav a{text-decoration:none;font-weight:650}
.guide-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:clamp(24px,5vw,52px);box-shadow:0 12px 36px rgba(30,52,35,.06)}
.guide-kicker{margin:0 0 10px;color:var(--green);font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}
h1,h2{line-height:1.2;letter-spacing:-.025em}
h1{max-width:720px;margin:0;font-size:clamp(34px,6vw,54px)}
h2{margin:36px 0 12px;font-size:clamp(22px,3.5vw,30px)}
.guide-lede{max-width:700px;margin:18px 0 28px;color:var(--muted);font-size:18px}
.guide-content{max-width:700px}
.guide-content p{margin:14px 0}
.guide-content li{padding-left:4px;margin:8px 0}
.guide-content ol,.guide-content ul{padding-left:24px}
.guide-content table{width:100%;min-width:520px;border-collapse:collapse;font:inherit;font-size:14px;line-height:1.5}
.guide-content th,.guide-content td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.guide-content th{background:#f2f5ef;font-weight:700}
.guide-table{overflow:auto;margin:16px 0;border:1px solid var(--line);border-radius:12px}
.guide-sample{overflow:auto;margin:16px 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#f6f8f3;font:14px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace}
.guide-note{margin:22px 0;padding:16px 18px;border-left:4px solid #85a98c;border-radius:6px;background:#f2f7ef}
.guide-cta{display:inline-flex;align-items:center;margin:26px 0 6px;padding:12px 18px;border-radius:999px;background:var(--green);color:white;font-weight:700;text-decoration:none}
.guide-cta:hover{background:#174e36;color:white}
.guide-sources{border-top:1px solid var(--line);margin-top:30px;padding-top:8px}
.guide-foot{margin:18px 0 0;color:var(--muted);font-size:13px}
@media(max-width:540px){.guide-wrap{padding:14px 12px 32px}.guide-nav{padding:6px 2px 14px}.guide-card{border-radius:14px}}

@media(max-width:540px){
  .guide-table.zone-6a-mobile{overflow:visible;border:0;border-radius:0}
  .guide-table.zone-6a-mobile table{display:block;width:100%;min-width:0;border-collapse:separate}
  .guide-table.zone-6a-mobile thead{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .guide-table.zone-6a-mobile tbody{display:grid;gap:10px}
  .guide-table.zone-6a-mobile tbody tr{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:hidden;border:1px solid var(--line);border-radius:10px}
  .guide-table.zone-6a-mobile tbody th[scope=row]{grid-column:1/-1;border-bottom:1px solid var(--line)}
  .guide-table.zone-6a-mobile tbody td{display:flex;flex-direction:column;gap:4px;border:0;padding:9px 10px;overflow-wrap:anywhere}
  .guide-table.zone-6a-mobile tbody td+td{border-left:1px solid var(--line)}
  .guide-table.zone-6a-mobile tbody td:nth-of-type(1)::before{content:"Spring window";font-size:11px;color:var(--muted);font-weight:700}
  .guide-table.zone-6a-mobile tbody td:nth-of-type(2)::before{content:"Fall window";font-size:11px;color:var(--muted);font-weight:700}
}