:root{
  --rw-navy:#17365d;
  --rw-green:#466a3b;
  --rw-green-dark:#31502a;
  --rw-paper:#f5f7f2;
  --rw-soft:#edf2e9;
  --rw-line:#d8e0d3;
  --rw-ink:#23322c;
  --rw-muted:#5d6a64;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{color:var(--rw-ink)}
.rw-hero{background:linear-gradient(135deg,#eef4ea,#f9faf7);border-bottom:1px solid var(--rw-line)}
.rw-hero-inner{max-width:900px;padding-top:clamp(52px,8vw,92px);padding-bottom:clamp(48px,7vw,78px)}
.rw-kicker{margin:0 0 9px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:.78rem;color:var(--rw-green)}
.rw-hero h1,.rw-section h2{color:var(--rw-navy);line-height:1.12}
.rw-hero h1{font-size:clamp(2.5rem,7vw,5rem);margin:0 0 18px}
.rw-lead{max-width:790px;font-size:clamp(1.05rem,2vw,1.28rem);line-height:1.7;color:#3d4c45}
.rw-hero-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.rw-hero-links a,.rw-next a{display:inline-block;text-decoration:none;font-weight:800;color:var(--rw-navy);background:#fff;border:1px solid var(--rw-line);border-radius:999px;padding:10px 15px}
.rw-hero-links a:hover,.rw-next a:hover{border-color:var(--rw-green);color:var(--rw-green-dark)}
.rw-section{padding:clamp(46px,7vw,78px) 0}
.rw-alt{background:var(--rw-paper)}
.rw-narrow{max-width:850px}
.rw-section-head{max-width:820px;margin-bottom:28px}
.rw-section h2{font-size:clamp(1.8rem,4vw,2.65rem);margin:0 0 14px}
.rw-section p{font-size:1.02rem;line-height:1.75}
.rw-rule{display:flex;gap:16px;align-items:flex-start;margin-top:26px;padding:20px;background:var(--rw-soft);border-left:4px solid var(--rw-green);border-radius:0 12px 12px 0}
.rw-rule-number{display:grid;place-items:center;flex:0 0 38px;height:38px;border-radius:50%;background:var(--rw-green);color:#fff;font-weight:900}
.rw-rule p{margin:5px 0 0}
.rw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rw-card{background:#fff;border:1px solid var(--rw-line);border-radius:16px;padding:22px;box-shadow:0 7px 20px rgba(28,51,40,.04)}
.rw-card h3{color:var(--rw-navy);font-size:1.25rem;margin:6px 0 9px}
.rw-card p{font-size:.95rem;line-height:1.65;margin:0 0 12px}
.rw-card .rw-cast{padding-top:12px;border-top:1px solid var(--rw-line);margin-bottom:0}
.rw-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:var(--rw-soft);color:var(--rw-green-dark);font-weight:900;font-size:1.25rem}
.rw-river{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:30px;align-items:center}
.rw-river-diagram{position:relative;min-height:430px;overflow:hidden;border-radius:18px;border:1px solid #b9cfda;background:#dceef4;box-shadow:inset 0 0 50px rgba(23,54,93,.08)}
.rw-flow{position:absolute;left:0;right:0;color:#17365d;font-weight:900;letter-spacing:.08em}
.rw-flow span{display:block;font-size:.78rem}
.rw-flow i{font-style:normal;font-size:1.35rem;word-spacing:16px}
.rw-flow.fast{top:55px;padding-left:42px}
.rw-flow.slow{bottom:105px;padding-left:75px}
.rw-seam{position:absolute;left:0;right:0;top:48%;height:7px;border-top:3px dashed #fff;border-bottom:1px solid rgba(23,54,93,.35);transform:rotate(-4deg)}
.rw-seam span{position:absolute;right:22px;top:-27px;background:#fff;padding:4px 8px;border-radius:6px;font-size:.72rem;font-weight:900;color:var(--rw-navy)}
.rw-rock{position:absolute;left:40%;bottom:110px;width:80px;height:58px;background:#66716b;color:#fff;border-radius:50% 45% 40% 50%;display:grid;place-items:center;font-size:.7rem;font-weight:900}
.rw-eddy{position:absolute;left:52%;bottom:83px;font-size:3.5rem;color:var(--rw-green-dark);font-weight:900;text-align:center;line-height:.75}
.rw-eddy small{display:block;font-size:.65rem;letter-spacing:.1em;margin-top:8px}
.rw-bank{position:absolute;left:0;right:0;bottom:0;height:56px;background:#c9b68d;color:#5d4b2d;display:flex;align-items:center;justify-content:center;font-size:.72rem;letter-spacing:.18em;font-weight:900}
.rw-river-notes h3{color:var(--rw-navy);font-size:1.35rem}
.rw-river-notes ul{padding-left:20px}
.rw-river-notes li{margin:0 0 12px;line-height:1.6}
.rw-tip{margin-top:28px;padding:20px 22px;border-radius:14px;background:var(--rw-navy);color:#fff}
.rw-tip p{margin:4px 0 0;color:#fff}
.rw-clues{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rw-line);border:1px solid var(--rw-line);border-radius:15px;overflow:hidden}
.rw-clues div{background:#fff;padding:20px}
.rw-clues strong{display:block;color:var(--rw-navy);margin-bottom:5px}
.rw-clues span{color:var(--rw-muted);line-height:1.55}
.rw-steps{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.rw-steps li{display:flex;gap:18px;padding:18px 20px;background:#fff;border:1px solid var(--rw-line);border-radius:13px}
.rw-steps li>span{font-size:1.35rem;font-weight:900;color:var(--rw-green)}
.rw-steps p{margin:3px 0 0;font-size:.95rem}
.rw-plan-section{background:var(--rw-navy)}
.rw-plan-section .rw-kicker{color:#a9c79e}
.rw-plan-section h2{color:#fff}
.rw-plan{color:#fff}
.rw-plan-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:25px}
.rw-plan-grid>div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:13px;padding:16px}
.rw-plan-grid span{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#fff;color:var(--rw-navy);font-weight:900;margin-bottom:10px}
.rw-plan-grid p{font-size:.88rem;line-height:1.55;margin:0;color:#fff}
.rw-plan-bottom{margin-top:18px;padding:16px;text-align:center;background:var(--rw-green);border-radius:11px;letter-spacing:.02em}
.rw-next{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.rw-safety{padding:30px 0;background:#f2eee5;border-top:1px solid #ded4c2}
.rw-safety h2{color:#6d5127;margin:0 0 8px;font-size:1.25rem}
.rw-safety p{margin:0;line-height:1.7}
.rw-footer{padding:24px 0;background:#132b26;color:#fff;text-align:center}
.rw-footer p{margin:0;font-size:.9rem}
@media(max-width:850px){
  .rw-grid{grid-template-columns:repeat(2,1fr)}
  .rw-river{grid-template-columns:1fr}
  .rw-plan-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .rw-grid,.rw-clues,.rw-plan-grid{grid-template-columns:1fr}
  .rw-hero-links,.rw-next{flex-direction:column;align-items:stretch}
  .rw-hero-links a,.rw-next a{text-align:center}
  .rw-river-diagram{min-height:350px}
  .rw-flow.fast{padding-left:18px}
  .rw-flow.slow{padding-left:30px}
}