:root{--green:#123f35;--gold:#e6b454;--ink:#18332e;--muted:#52665e;--line:#ccd8d1;--paper:#f5f6f2;--ease:cubic-bezier(.16,1,.3,1);color-scheme:light}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-padding-top:24px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding-bottom:calc(94px + env(safe-area-inset-bottom))}
::selection{background:var(--gold);color:var(--green)}
a{color:var(--green);text-underline-offset:3px}
button,input,select{font:inherit;touch-action:manipulation}
button,a,input,select,summary{ -webkit-tap-highlight-color:transparent }
button{cursor:pointer}
button:disabled{cursor:default;opacity:.55}
:focus-visible{outline:3px solid #a87920;outline-offset:4px}
input{caret-color:var(--green)}
input::placeholder{color:#69776f;opacity:1}
input[aria-invalid=true],select[aria-invalid=true]{border-color:#a42e28}
button:active,.primary:active{transform:translateY(1px)}
.site-header{background:var(--green);color:white;padding:14px max(16px,calc((100vw - 1120px)/2));display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px}
.brand{display:flex;align-items:center;gap:10px;color:white;text-decoration:none;font-size:20px;font-weight:750;white-space:nowrap}
.mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--gold);color:var(--green)}
.site-header nav{display:flex;gap:8px;align-items:center}
.site-header nav a{display:flex;align-items:center;min-height:44px;padding:8px;color:#e4eee9;font-size:14px;font-weight:650}
.site-header .header-action{color:var(--green);background:var(--gold);border-radius:8px;text-decoration:none;padding:8px 12px}
main{max-width:1120px;margin:auto;padding:26px 16px 40px}
h1,h2{line-height:1.18;letter-spacing:-.025em;text-wrap:balance}
h1{font-size:clamp(28px,4vw,40px);margin:0 0 12px;max-width:24ch}
h2{font-size:23px;margin:0 0 12px}
p{margin:0 0 14px}
.intro{margin-bottom:26px}
.intro>p:first-of-type{font-size:18px;max-width:54ch}
.intro-detail,.help{color:var(--muted);font-size:14px}
.intro-detail{margin:0}
.calc-container{display:grid;gap:20px;align-items:start}
.input-panel{background:white;border:1px solid var(--line);border-radius:16px;padding:20px;min-width:0}
.mode-switch{position:relative;display:flex;padding:4px;background:#eaf0ec;border-radius:10px;margin-bottom:24px;isolation:isolate}
.mode-indicator{position:absolute;z-index:-1;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);background:var(--green);border-radius:7px;transition:transform 220ms var(--ease)}
.mode-switch[data-mode=monthly] .mode-indicator{transform:translateX(100%)}
.mode-switch button{min-width:0;flex:1;min-height:44px;padding:8px 6px;border:0;background:transparent;color:var(--green);font-size:15px;font-weight:650;transition:color 150ms}
.mode-switch button[aria-pressed=true]{color:white}
label,legend{display:block;font-weight:650;margin-bottom:8px;font-size:15px}
.amount-input-box{display:flex;align-items:center;gap:10px;border:1px solid #91ab9e;border-radius:10px;padding:8px 14px;background:#f7faf7}
.amount-input-box:focus-within{outline:3px solid #a87920;outline-offset:3px}
.amount-input-box span{font-size:28px;color:var(--green)}
.amount-input-box input{min-width:0;width:100%;border:0;background:transparent;outline:none;font-size:34px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}
.help{margin:8px 0 14px;line-height:1.5}
.chips-grid{display:flex;flex-wrap:wrap;gap:8px}
.chips-grid button,.add-row,.remove-row{min-height:44px;padding:8px 11px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--green);font-size:14px;font-weight:650;transition:background-color 150ms,color 150ms,border-color 150ms}
.chips-grid button[aria-pressed=true]{background:#e9f1ec;border-color:var(--green)}
.settings{border-top:1px solid var(--line);padding-top:20px;margin-top:22px}
.period-fieldset{padding:0;border:0;margin:0 0 20px;min-width:0}
.period-options{display:grid;gap:6px}
.period-options label,.check-row{display:flex;gap:10px;align-items:center;min-height:44px;margin:0;font-weight:500}
.period-options label{flex-wrap:wrap}
input[type=radio],input[type=checkbox]{width:20px;height:20px;flex-shrink:0;accent-color:var(--green);margin:0}
#todayDate{font-size:13px;color:var(--muted)}
select,.bill-row input{display:block;width:100%;min-width:0;min-height:48px;padding:10px 12px;border:1px solid #91ab9e;border-radius:8px;background:white;color:var(--ink);font-size:16px}
.scope-details{margin-top:16px;font-size:14px}
summary{cursor:pointer;min-height:44px;padding:12px 0;font-weight:650}
.scope-details p{color:var(--muted)}
#monthlyTitle{font-size:20px}
.bill-row{display:grid;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.bill-row:first-child{padding-top:4px}
.bill-row label{font-size:14px}
.remove-row{justify-self:start;display:flex;align-items:center;gap:6px}
.remove-row svg{width:16px;height:16px}
.add-row{margin-top:16px}
.field-error{color:#982e28;font-size:14px;margin:8px 0 0}
.result-panel{background:var(--green);color:white;border-radius:16px;padding:24px;min-width:0}
.result-panel h2{font-size:18px;color:#e4eee9;letter-spacing:0;margin-bottom:10px;scroll-margin-top:24px}
.result-panel h2:focus{outline:2px solid var(--gold);outline-offset:5px}
.fee-amount{font-size:clamp(40px,6vw,54px);font-weight:750;letter-spacing:-.03em;line-height:1.15;margin-bottom:8px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.result-help{font-size:14px;color:#d0e0d7;line-height:1.55}
.breakdown{margin:20px 0;display:block;font-variant-numeric:tabular-nums}
.breakdown>div{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid #43665a;align-items:baseline}
.breakdown dt{font-size:14px;color:#e4eee9;flex:1}
.breakdown dd{margin:0;text-align:right;font-size:15px;font-weight:650;max-width:58%;overflow-wrap:anywhere}
.breakdown .net-row dd{color:#f4d495}
.annual-line{display:flex;justify-content:space-between;gap:12px;color:#f4d495;flex-wrap:wrap}
.annual-line strong{font-variant-numeric:tabular-nums}
.result-note{font-size:14px;line-height:1.55;border-top:1px solid #43665a;padding-top:18px;margin-top:20px}
.share-btn{display:flex;min-height:48px;align-items:center;justify-content:center;text-align:center;padding:10px 16px;border:1px solid #b7d0c2;border-radius:8px;color:white;text-decoration:none;font-weight:650;font-size:15px;margin-top:22px}
.primary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border:0;border-radius:8px;background:var(--green);color:white;text-decoration:none;font-weight:650;text-align:center}
.desktop-action{display:none;margin-top:22px;width:100%}
.mobile-action{position:fixed;z-index:5;bottom:0;left:0;right:0;background:#f5f6f2;border-top:1px solid var(--line);padding:12px 16px calc(12px + env(safe-area-inset-bottom));transition:transform 180ms var(--ease),visibility 180ms}
.mobile-action .primary{width:100%}
body.input-focused .mobile-action{transform:translateY(110%);visibility:hidden}
.counter-cta{display:flex;flex-direction:column;align-items:start;gap:12px;border-top:1px solid #a8bcb0;border-bottom:1px solid #a8bcb0;padding:26px 0;margin:32px 0 42px}
.counter-cta h2{font-size:23px}
.counter-cta p{color:var(--muted);max-width:58ch;margin:0}
.counter-cta>a{width:100%;flex-shrink:0}
.rules-section,.faq-section{max-width:76ch;margin:0 auto 40px}
.rules-section>p{color:var(--muted)}
.table-container{max-width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:10px;margin:20px 0;background:white;scrollbar-color:#91ab9e #eaf0ec}
table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}
caption{text-align:left;font-size:14px;padding:14px 16px;background:#eaf0ec;color:var(--green);font-weight:650}
th,td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-weight:650;background:#f7faf7}
tbody th{font-weight:550}
tr:last-child th,tr:last-child td{border-bottom:0}
.faq-section details{border-bottom:1px solid var(--line)}
.faq-section summary{padding:16px 0}
.faq-section details p{color:var(--muted);padding:0 0 10px}
footer{border-top:1px solid var(--line);padding-top:24px;font-size:14px;color:var(--muted)}
footer nav{display:flex;flex-wrap:wrap;gap:4px 16px}
footer a{display:inline-flex;align-items:center;min-height:44px}
.notice{padding:16px;border:1px solid var(--line);background:white}
.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.skip-link:focus{display:block;padding:12px;background:var(--gold)}
@media(hover:hover){.chips-grid button:hover,.add-row:hover,.remove-row:hover{background:#e9f1ec}.primary:hover{background:#1b5545}.share-btn:hover{background:#214f42}}
@media(min-width:520px){.bill-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:start}.remove-row{align-self:start;margin-top:29px}}
@media(min-width:768px){body{padding-bottom:0}main{padding:40px 24px 56px}.intro{margin-bottom:32px}.calc-container{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:24px}.input-panel{padding:26px}.result-panel{position:sticky;top:24px;padding:28px}.desktop-action{display:flex}.mobile-action{display:none}.bill-row{grid-template-columns:1fr 1fr}.remove-row{grid-column:1/-1;margin-top:0}.counter-cta{flex-direction:row;align-items:center;justify-content:space-between;gap:32px;padding:32px 0}.counter-cta>a{width:auto}}
@media(min-width:1024px){.bill-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto}.remove-row{grid-column:auto;margin-top:29px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}button:active,.primary:active{transform:none}}