/* Cash Flow River: Rick Darvis's river in paper, ink and water. */
:root{
  --paper:#f7f3ea; --paper-2:#efe8d8; --card:#fffdf8; --ink:#12263a; --ink-2:#3c4f60; --muted:#6a7884; --line:#ddd3bf;
  --river:#2c7bb6; --river-deep:#1a5784; --river-light:#8cc7ea;
  --meadow:#a9c08a; --mtn-1:#7f9f86; --mtn-2:#5c7a68; --snow:#f4f6f2; --sky-1:#cfe6f2; --sky-2:#eef5ec; --sun:#f0bf45;
  --dam:#4a4f55; --good:#2f7d4f; --warn:#c48a1c; --bad:#b04a2a; --dry:#b99e74; --canoe:#d9852b;
  --radius:14px; --shadow:0 1px 2px rgba(18,38,58,.06),0 8px 24px rgba(18,38,58,.08);
  --serif:'Fraunces',Georgia,serif; --sans:'Work Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#0f1b26; --paper-2:#14232f; --card:#172937; --ink:#eef2f4; --ink-2:#c3ced6; --muted:#93a3ae; --line:#2a3d4c;
  --river:#3d93d1; --river-deep:#1f5f8f; --river-light:#9fd3f2;
  --meadow:#3f5638; --mtn-1:#56705d; --mtn-2:#3d5446; --snow:#d9e2e6; --sky-1:#1c3446; --sky-2:#1d2f2a; --sun:#d9a93a;
  --dam:#8a929a; --good:#4fb07a; --warn:#e0a83a; --bad:#de6d4a; --dry:#8a7556; --canoe:#d9852b;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.3);
}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.55 var(--sans);padding-bottom:64px}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.15;letter-spacing:-.01em;margin:0 0 .4em}
h4{font:600 14px/1.3 var(--sans);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 10px}
a{color:var(--river-deep)}
@media (prefers-color-scheme:dark){a{color:var(--river-light)}}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:8px 12px;border-radius:8px;z-index:20}
.skip:focus{left:12px}
:focus-visible{outline:3px solid var(--river);outline-offset:2px}

.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:16px;padding:10px max(16px,calc((100% - 1120px)/2));background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);margin-top:22px}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font:600 18px var(--serif)}
.brand svg{width:30px;height:30px;color:var(--ink)}
.top nav{display:flex;gap:18px;margin-left:auto}
.top nav a{color:var(--ink-2);text-decoration:none;font-weight:500;font-size:15px;padding:6px 0}
.top nav a:hover{color:var(--ink)}
.call{display:inline-flex;align-items:center;gap:6px;background:var(--ink);color:var(--paper)!important;text-decoration:none;font-weight:600;font-size:15px;padding:9px 14px;border-radius:999px;white-space:nowrap}
@media (max-width:760px){.top nav{display:none}.call{margin-left:auto}}
@media (max-width:380px){.call-num{display:none}}

section{padding:56px max(16px,calc((100% - 1120px)/2))}
.sec-head{max-width:720px;margin-bottom:24px}
.sec-head p{color:var(--ink-2);margin:0}
.eyebrow{font:600 13px var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--river-deep);margin:0 0 12px}
@media (prefers-color-scheme:dark){.eyebrow{color:var(--river-light)}}

.hero{padding-top:56px;padding-bottom:32px}
.hero h1{font-size:clamp(36px,6vw,64px);max-width:16ch}
.hero h1 em{font-style:italic;color:var(--river-deep);display:block}
@media (prefers-color-scheme:dark){.hero h1 em{color:var(--river-light)}}
.lede{font-size:clamp(18px,2.2vw,21px);color:var(--ink-2);max-width:60ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 10px}
.fine{font-size:14px;color:var(--muted)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:999px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);font:600 16px var(--sans);text-decoration:none;cursor:pointer}
.btn.primary{background:var(--river-deep);border-color:var(--river-deep);color:#fff}
.btn.primary:hover{background:var(--river)}
.btn.ghost{border-color:var(--line)}
.btn.small{min-height:40px;padding:0 16px;font-size:15px}
.btn:disabled{opacity:.4;cursor:default}

.river-sec{background:var(--paper-2)}
.river-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:860px){.river-wrap{grid-template-columns:minmax(0,1fr)}}
.river-map{width:100%;height:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:var(--meadow);display:block}
.part{cursor:pointer;outline:none}
.part:hover,.part:focus-visible,.part.on{filter:brightness(1.08) drop-shadow(0 0 6px rgba(255,255,255,.6))}
.lbl{font:600 20px var(--serif);fill:var(--ink)}
.lbl-sm{font:500 14px var(--sans);fill:var(--ink)}
.lbl-xs{font:700 11px var(--sans);letter-spacing:.1em}
.lbl-dark{fill:#12263a}
.lbl-light{fill:#fff}
.lbl-muted{fill:var(--muted)}
.lbl-num{font-weight:600;font-variant-numeric:tabular-nums}
.lbl-river{fill:#fff;font-size:18px}
.flow{animation:flow 2.2s linear infinite}
@keyframes flow{to{stroke-dashoffset:-64}}
@media (prefers-reduced-motion:reduce){.flow{animation:none}html{scroll-behavior:auto}}
.river-note{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.river-note p{margin:0;color:var(--ink-2)}

.start-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.steps{list-style:none;padding:0;margin:0 0 18px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-width:820px}
.steps button{width:100%;min-height:52px;border:1.5px solid var(--line);background:var(--card);border-radius:12px;color:var(--muted);font:700 16px var(--serif);display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;padding:6px}
.steps button span{font:500 14px var(--sans)}
.steps button[aria-selected=true]{border-color:var(--river-deep);color:var(--ink);background:color-mix(in srgb,var(--river) 10%,var(--card))}
@media (max-width:560px){.steps button span{display:none}}
form{max-width:820px}
.step{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:22px;margin:0;box-shadow:var(--shadow);min-width:0}
legend{font:600 20px var(--serif);padding:0 6px}
label{display:flex;flex-direction:column;gap:6px;font-size:15px;font-weight:500;color:var(--ink-2)}
label.inline{flex-direction:row;align-items:center;gap:10px}
input,select{font:500 17px var(--sans);color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;min-height:46px;width:100%;min-width:0}
input:focus,select:focus{border-color:var(--river);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--river) 25%,transparent)}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:620px){.grid3{grid-template-columns:minmax(0,1fr)}}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (max-width:620px){.cols{grid-template-columns:minmax(0,1fr)}}
.cols label{margin-bottom:10px}
.money{position:relative}
.money::before{content:'$';position:absolute;left:12px;bottom:12px;color:var(--muted);font-weight:500}
.money input{padding-left:26px}
.hint{font-size:15px;color:var(--muted);margin:12px 0 0}
.more{margin-top:16px}
.more summary{cursor:pointer;font-weight:600;color:var(--ink-2);min-height:32px}
.meter{margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--paper-2);font-size:16px}
.meter b{font-family:var(--serif)}
.meter .pos{color:var(--good)}.meter .neg{color:var(--bad)}
.step-nav{display:flex;justify-content:space-between;gap:12px;margin-top:16px}

.asset{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px;background:var(--paper)}
.asset-head{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.asset-head input{font-weight:600}
.asset-head .kind{font-size:13px;color:var(--muted);white-space:nowrap}
.asset-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
@media (max-width:620px){.asset-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.asset .row2{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:10px;font-size:15px}
.asset .row2 label{flex-direction:row;align-items:center;gap:8px}
.asset .row2 input[type=checkbox]{width:22px;height:22px;min-height:0}
.asset .note{font-size:14px;color:var(--muted);margin:8px 0 0}
.rm{margin-left:auto;border:0;background:none;color:var(--bad);font:600 15px var(--sans);cursor:pointer;min-height:40px;padding:0 6px}
.add-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.add-row select{width:auto}

.results-sec{background:var(--paper-2)}
.verdict{display:flex;gap:22px;align-items:center;background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);border-left:6px solid var(--good);max-width:820px}
.verdict.rapids{border-left-color:var(--warn)}.verdict.dry{border-left-color:var(--bad)}
.verdict p{margin:0;color:var(--ink-2)}
.v-dial{position:relative;width:104px;height:104px;flex:none}
.v-dial svg{width:100%;height:100%;transform:rotate(-90deg)}
.dial-bg{fill:none;stroke:var(--line);stroke-width:12}
.dial-fg{fill:none;stroke:var(--good);stroke-width:12;stroke-linecap:round;stroke-dasharray:314.16;stroke-dashoffset:314.16;transition:stroke-dashoffset .8s ease}
.rapids .dial-fg{stroke:var(--warn)}.dry .dial-fg{stroke:var(--bad)}
.v-dial b{position:absolute;inset:0;display:grid;place-items:center;font:600 26px var(--serif)}
@media (max-width:520px){.verdict{flex-direction:column;align-items:flex-start}}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0;max-width:1120px}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat{background:var(--card);border-radius:12px;padding:16px;border:1px solid var(--line)}
.stat small{display:block;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.stat b{display:block;font:600 26px var(--serif);margin:4px 0 2px;font-variant-numeric:tabular-nums}
.stat span{font-size:14px;color:var(--ink-2)}
.chart-card{margin:0 0 18px;background:var(--card);border-radius:var(--radius);padding:20px;border:1px solid var(--line)}
.chart-card figcaption p{margin:0 0 10px;color:var(--muted);font-size:15px}
.chart svg{width:100%;height:auto;display:block;font-family:var(--sans)}
.chart text{fill:var(--muted);font-size:12px}
.chart .axis{stroke:var(--line)}
.chart .band{fill:var(--river);opacity:.18}
.chart .mid{stroke:var(--river-deep);stroke-width:3;fill:none}
.chart .flowline{stroke:var(--good);stroke-width:3;fill:none}
.chart .retire{stroke:var(--ink-2);stroke-dasharray:4 4}
.chart .retire-lbl{fill:var(--ink-2);font-weight:600}
@media (prefers-color-scheme:dark){.chart .mid{stroke:var(--river-light)}}
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:minmax(90px,150px) minmax(0,1fr) auto;gap:10px;align-items:center;font-size:15px}
.bar i{display:block;height:14px;border-radius:7px;background:var(--river)}
.bar b{font-variant-numeric:tabular-nums}
.tips{display:grid;gap:10px;max-width:820px;margin:8px 0 18px}
.tip{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--river);border-radius:10px;padding:14px 16px;font-size:16px}
.res-actions{display:flex;flex-wrap:wrap;gap:12px;margin:10px 0}
.disclaimer{max-width:820px}

.rick-card{display:flex;gap:24px;align-items:flex-start;background:var(--card);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);max-width:880px}
.rick-mark{flex:none;width:84px;height:84px;border-radius:50%;background:var(--ink);color:var(--paper);display:grid;place-items:center;font:600 30px var(--serif)}
.rick-card p{color:var(--ink-2)}
.contact{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-wrap:wrap;gap:10px 22px;font-weight:600}
.contact a{display:inline-flex;min-height:44px;align-items:center}
@media (max-width:560px){.rick-card{flex-direction:column}}

.foot{padding:28px max(16px,calc((100% - 1120px)/2));border-top:1px solid var(--line);color:var(--ink-2)}
.foot p{margin:4px 0}
.callbar{display:none}
@media (max-width:760px){.callbar{display:flex;position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:9;justify-content:center;align-items:center;min-height:50px;border-radius:999px;background:var(--river-deep);color:#fff!important;font-weight:600;text-decoration:none;box-shadow:var(--shadow)}}
@media print{.top,.callbar,.hero,.river-sec,.plan-sec,.res-actions,.rick-sec,.release-badge,.skip{display:none!important}body{background:#fff;padding:0}.results-sec{background:#fff}}

/* the river's pop-up: a bubble and arrow at the part you tap */
.callout{pointer-events:none}
.callout .co-box{fill:var(--card);stroke:var(--river-deep);stroke-width:2;filter:drop-shadow(0 4px 10px rgba(18,38,58,.25))}
.callout .co-title{fill:var(--muted);font-family:var(--sans);font-weight:600}
.callout .co-num{fill:var(--ink);font-family:var(--serif);font-weight:600;font-variant-numeric:tabular-nums}
.callout.pop{animation:co-pop .35s cubic-bezier(.2,1.4,.4,1) both}
@keyframes co-pop{from{opacity:0;transform:scale(.4)}to{opacity:1;transform:scale(1)}}
.part.on{filter:brightness(1.1) drop-shadow(0 0 8px rgba(255,255,255,.8))}
@media (prefers-reduced-motion:reduce){.callout.pop{animation:none}}