:root{color-scheme:light;--ink:#25223f;--muted:#727283;--purple:#6750b9;--border:#e4e5ed;--light:#f5f6fa;--amber:#ffc957;--green:#21634f;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:16px;color:var(--ink);background:var(--light)}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,summary,select{cursor:pointer}button{border:0}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #9582d7;outline-offset:4px}input:focus,select:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px #6750b917}button:disabled{opacity:.45;cursor:not-allowed}h1,h2,h3,p{margin:0}[hidden]{display:none!important}.topbar{background:#fff;border-bottom:1px solid var(--border)}.topbar-inner{max-width:1160px;margin:auto;min-height:88px;display:flex;align-items:center;gap:26px;padding:0 24px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:25px;font-weight:800;line-height:1.05;letter-spacing:-.7px}.brand-mark{width:37px;height:42px;border-radius:12px;background:var(--ink);color:var(--amber);font-size:35px;text-align:center;line-height:42px;font-family:Georgia,serif}.brand-sub{display:block;font-size:9px;letter-spacing:2.7px;margin-top:5px}.header-divider{height:25px;width:1px;background:var(--border)}.app-name{font-size:15px;font-weight:500;color:#656578}.settings-trigger{margin-left:auto}.button{min-height:42px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;font-size:14px;font-weight:600;transition:background .15s}.button-light{background:#fff;border:1px solid var(--border);color:var(--ink)}.button-light:hover{background:#f6f5fa}.button-primary{background:var(--purple);color:#fff}.button-primary:hover{background:#5941a4}.text-button{background:none;color:var(--purple);padding:10px 2px;font-size:14px;font-weight:600}.text-button:hover{text-decoration:underline}.workspace{max-width:1160px;margin:0 auto;padding:39px 24px 24px}.page-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:27px}.eyebrow{font-size:12px;letter-spacing:1.4px;font-weight:700;color:var(--muted);line-height:1.6}h1{font-size:29px;letter-spacing:-.7px;margin-top:5px;line-height:1.3}.page-actions{display:flex;gap:21px;align-items:center}.workspace-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:25px;align-items:start}.card{background:#fff;border:1px solid var(--border);border-radius:15px}.form-section{padding:26px 29px}.form-section+ .form-section{border-top:1px solid var(--border)}.section-heading{display:flex;align-items:center;gap:11px;margin-bottom:23px}.step{display:inline-grid;place-items:center;background:#eeebf7;width:25px;height:25px;border-radius:8px;font-size:13px;font-weight:700;color:var(--purple)}h2{font-size:17px;font-weight:650;letter-spacing:-.2px}.section-help{margin-left:auto;font-size:12px;color:var(--muted)}label,legend{font-size:14px;font-weight:550;display:block;margin-bottom:8px}input,select{width:100%;min-width:0;min-height:46px;border:1px solid #dbdce7;border-radius:8px;background:#fff;color:var(--ink);padding:11px 12px;line-height:1.3}select{padding-right:27px}input::placeholder{color:#9a9ba9}input[aria-invalid=true]{border-color:#bf705f;background:#fffdfc}input[type=number]{appearance:textfield;-moz-appearance:textfield}input::-webkit-inner-spin-button{appearance:none}small{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:7px}.period-field{padding:0;border:0;margin:21px 0}.segmented{display:grid;grid-template-columns:1fr 1fr;background:#f3f2f7;border:1px solid #e9e7f0;border-radius:9px;padding:4px;gap:4px}.segmented label{margin:0;position:relative;cursor:pointer}.segmented input{position:absolute;opacity:0;width:1px;height:1px;min-height:0}.segmented span{display:block;text-align:center;padding:10px;border-radius:6px;font-size:14px;color:#717080}.segmented input:checked+span{background:#fff;box-shadow:0 1px 4px #24213a12;color:var(--purple);font-weight:650}.segmented input:focus-visible+span{outline:2px solid var(--purple)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.field{margin-bottom:19px}.paid-field{margin-bottom:0}.input-unit{position:relative}.input-unit input{padding-right:46px}.input-unit>span{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);pointer-events:none}.optional{font-size:12px;font-weight:400;color:var(--muted);margin-left:5px}.automatic-note{border:1px solid #e5e1f1;background:#f9f7fd;border-radius:9px;padding:14px 16px;font-size:14px;line-height:1.65;margin-bottom:17px}.automatic-note strong{color:var(--purple)}.automatic-note p+p{margin-top:7px}.overrides{border-top:1px solid var(--border);padding-top:17px;margin-top:9px}.overrides summary{font-size:14px;font-weight:600;line-height:1.6;color:#656176}.overrides[open] summary{margin-bottom:14px}.overrides .muted{margin-bottom:14px}.overrides>.field-grid{margin-top:16px}.overrides .field{margin-bottom:5px}.overrides>small{margin-top:11px}.full-refund-note{display:flex;gap:13px;margin:0 29px 27px;padding:20px;border:1px solid #d4e8df;background:#f2faf5;border-radius:10px;color:var(--green);font-size:14px;line-height:1.6}.full-refund-note p{margin-top:4px}.check-icon{font-size:20px}.result-column{position:sticky;top:25px}.result-card{background:var(--ink);color:#fff;border-radius:15px;padding:26px 26px 22px;box-shadow:0 8px 25px #25223f0d}.result-top{display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:space-between}.result-top .eyebrow{color:#cdc7e2;font-size:11px;letter-spacing:1px}.rule-badge{font-size:11px;background:#ffffff12;color:#ded8ef;border-radius:5px;padding:5px 7px;white-space:nowrap}.result-card.is-valid .rule-badge{background:#ffc957;color:#332b1e}.refund-amount{font-size:43px;font-weight:650;letter-spacing:-1.5px;line-height:1.2;margin:24px 0 8px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.refund-amount span{font-size:21px;font-weight:400;letter-spacing:0;color:#bbb3d1}.result-card p{font-size:13px;color:#c3bdd4;line-height:1.6;min-height:21px}.result-line{height:1px;background:#ffffff21;margin:24px 0 19px}.result-metric{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin:13px 0;color:#d3cde2}.result-metric strong{color:#fff;font-weight:550;font-variant-numeric:tabular-nums;white-space:nowrap}.copy-button{background:#ffffff0d;border:1px solid #ffffff32;color:#fff;width:100%;margin-top:11px}.copy-button:not(:disabled):hover{background:#ffffff1c}.breakdown-card,.incomplete-card{padding:23px;margin-top:19px}.breakdown-header{display:flex;justify-content:space-between;align-items:center;gap:9px;margin-bottom:18px}.breakdown-header>span{font-size:12px;color:var(--muted)}.breakdown-item+.breakdown-item{border-top:1px solid var(--border);padding-top:17px;margin-top:17px}.breakdown-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;font-size:14px}.remaining-pill{font-size:12px;padding:4px 7px;background:#f2f0f9;color:var(--purple);border-radius:5px}.detail-row{display:flex;justify-content:space-between;gap:10px;margin:9px 0;font-size:13px;color:var(--muted);line-height:1.5}.detail-row span:last-child{color:var(--ink);font-variant-numeric:tabular-nums;text-align:right}.detail-row.deduction{font-weight:600;color:var(--ink)}.rounding-note{font-size:12px;color:#8b8998;line-height:1.6;border-top:1px solid var(--border);padding-top:14px;margin-top:19px}.incomplete-card h2{font-size:14px;color:#777186}.incomplete-card ul{padding-left:18px;font-size:13px;color:#8a7780;line-height:1.65;margin-bottom:0}.incomplete-card li+li{margin-top:6px}.policy-note{font-size:12px;color:var(--muted);line-height:1.75;margin:17px 7px}.policy-note strong{font-weight:600}.example-notice{display:flex;gap:12px;flex-wrap:wrap;background:#fff6de;border:1px solid #f2e2b6;color:#8a6821;padding:12px 16px;border-radius:10px;font-size:13px;line-height:1.6;margin-bottom:20px}footer{display:flex;justify-content:space-between;gap:12px;padding:25px 2px 0;font-size:12px;color:#9b98a8}dialog{border:0;border-radius:17px;padding:0;color:var(--ink);width:min(680px,calc(100% - 32px));max-height:90dvh;box-shadow:0 30px 90px #15112635}dialog::backdrop{background:#24203388;backdrop-filter:blur(3px)}.dialog-header{padding:25px 28px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:#fff;position:sticky;top:0;z-index:2}.dialog-header h2{font-size:23px;margin-top:3px}.icon-button{width:36px;height:36px;border-radius:8px;background:#f3f2f7;font-size:25px;color:#777}.dialog-body{padding:23px 28px 26px}.settings-scope{font-size:13px;line-height:1.7;background:#f5f3fa;border-radius:8px;padding:13px 15px;margin-bottom:23px;color:#77698c}.dialog-body h3{font-size:16px;margin-bottom:17px}.dialog-body h3:not(:first-child){margin-top:23px}.muted{font-size:13px;color:var(--muted);line-height:1.6}.price-head,.price-row{display:grid;grid-template-columns:75px minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:center}.price-head{margin:19px 0 8px;font-size:13px;color:var(--muted)}.price-row{margin-bottom:12px}.price-row strong{font-size:14px;font-weight:600}.dialog-footer{display:flex;justify-content:space-between;gap:20px;padding:20px 28px;border-top:1px solid var(--border);position:sticky;bottom:0;background:#fff;z-index:2}.settings-errors{color:#a24839;font-size:14px;line-height:1.65;margin-top:15px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#26233e;color:#fff;padding:13px 21px;border-radius:10px;box-shadow:0 6px 25px #211d3233;z-index:10;font-size:14px;max-width:90vw;text-align:center}.inline-rule{background:#f2faf5;color:var(--green);font-size:14px;line-height:1.7;padding:13px;border-radius:8px}.result-equation{font-size:13px;background:#f6f5fa;border-radius:8px;padding:12px;line-height:1.7;margin-top:17px;color:#686077}
@media(min-width:1000px){.usage-grid:has(>div[hidden]){grid-template-columns:1fr}.usage-grid:has(>div[hidden])>.field{max-width:65%}}
@media(max-width:880px){.workspace-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:17px}.workspace{padding:26px 20px}.form-section{padding:23px 20px}.field-grid{gap:12px}.result-card{padding:23px 20px}.refund-amount{font-size:35px}.section-help{display:none}.page-actions{gap:13px}.app-name{font-size:14px}.full-refund-note{margin:0 20px 23px}}
@media(max-width:700px){.workspace-grid{grid-template-columns:1fr}.result-column{position:static}.topbar-inner{padding:0 18px;min-height:75px;gap:15px}.brand{font-size:22px}.brand-mark{height:35px;width:31px;font-size:29px;line-height:35px}.brand-sub{font-size:8px;letter-spacing:2.3px}.header-divider,.app-name{display:none}.workspace{padding:27px 16px 20px}.page-heading{align-items:flex-start;flex-direction:column;gap:16px;margin-bottom:20px}h1{font-size:26px}.page-actions{width:100%;justify-content:space-between}.page-actions .text-button{order:2}.refund-amount{font-size:44px}.result-card{padding:25px}.section-help{display:block}.form-section{padding:24px 21px}.dialog-body{padding:20px}.dialog-header,.dialog-footer{padding:20px}.price-head,.price-row{grid-template-columns:55px minmax(0,1fr) minmax(0,1fr);gap:9px}footer{flex-direction:column;font-size:11px;gap:7px}}
@media(max-width:380px){.field-grid{grid-template-columns:1fr}.section-help{display:none}.price-row,.price-head{grid-template-columns:45px minmax(0,1fr) minmax(0,1fr)}.price-row input{padding-left:8px;padding-right:30px;font-size:14px}.input-unit>span{right:8px}.refund-amount{font-size:37px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.session-nav{margin-left:auto;display:flex;align-items:center;gap:14px}.session-nav>span{font-size:12px;color:var(--muted);max-width:180px;overflow-wrap:anywhere}.settings-trigger{margin-left:0}.field-explanation{font-size:13px;line-height:1.7;padding:13px 15px;background:#f5f3fa;border-radius:8px;margin-top:10px;color:#665a7e}.submit-area{border-top:1px solid var(--border);padding:23px 29px}.submit-area .button{width:100%;min-height:48px;font-size:16px}.submit-area p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:12px}.admin-section{padding:26px;margin-bottom:24px}.admin-section>h2{margin-bottom:12px}.admin-section .section-heading{justify-content:space-between}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.inline-form{display:flex;gap:12px;align-items:flex-end;margin:20px 0}.inline-form>div{flex:1}.inline-form .button{min-height:46px;white-space:nowrap}.table-scroll{overflow:auto;margin:20px 0}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}th,td{padding:14px 12px;border-bottom:1px solid var(--border);vertical-align:top}th{font-size:12px;color:var(--muted);white-space:nowrap}td strong{white-space:nowrap}.user-row{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--border);padding:16px 0}.user-row:first-child{margin-top:20px}.user-row strong{font-size:14px;overflow-wrap:anywhere}.user-row .button{flex-shrink:0;font-size:12px}.setup-code{display:block;overflow-wrap:anywhere;font-size:12px;line-height:1.8;margin:12px 0}.login-layout{min-height:100dvh;display:grid;place-items:center;padding:24px}.login-card{max-width:430px;width:100%;padding:36px}.login-card .brand{margin-bottom:35px}.login-card h1{margin-bottom:16px}.login-card #google-button{margin:28px 0 10px}.login-card #login-status{font-size:14px;line-height:1.7;color:var(--muted);margin:18px 0}.login-card>a.button{margin-top:12px}#google-status{margin-top:14px}.detail-amount{font-size:27px;margin:18px 0 24px}pre{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65}.admin-workspace #admin-status{margin-bottom:18px}.admin-section input{font-size:14px}
@media(max-width:850px){.admin-grid{grid-template-columns:1fr}.session-nav>span{display:none}.topbar-inner{gap:12px}.admin-section{padding:20px}.inline-form{flex-wrap:wrap}.inline-form>div{min-width:180px}}@media(max-width:450px){.topbar-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.session-nav{gap:10px}.session-nav .button,.settings-trigger{font-size:12px;padding:8px 10px}.topbar-inner .brand{font-size:20px}.submit-area{padding:20px}.user-row{flex-wrap:wrap}}