:root{color-scheme:light dark;--bg:#f2f2f7;--card:#fff;--card-soft:#f7f7fa;--text:#111114;--muted:#74747b;--line:#e5e5ea;--blue:#0a84ff;--blue-pressed:#0071e3;--green:#34c759;--red:#ff3b30;--shadow:0 8px 28px rgba(0,0,0,.06);--safe-bottom:env(safe-area-inset-bottom,0px)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{background:var(--bg);scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Helvetica Neue",sans-serif;font-size:16px;line-height:1.4;-webkit-font-smoothing:antialiased}.app-shell{width:min(100%,520px);min-height:100vh;margin:0 auto;padding:calc(env(safe-area-inset-top,0px) + 14px) 16px calc(94px + var(--safe-bottom))}.app-header{display:flex;justify-content:space-between;align-items:center;padding:4px 4px 18px}.eyebrow{margin:0 0 2px;color:var(--blue);font-size:11px;font-weight:750;letter-spacing:.18em}.app-header h1{margin:0;font-size:30px;letter-spacing:-.035em}.brand-mark,.app-icon{display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#45a5ff,#006ee6);box-shadow:0 8px 18px rgba(10,132,255,.24);font-weight:700}.brand-mark{width:44px;height:44px;border-radius:13px;font-size:22px}.page{display:none}.page.active{display:block;animation:pageIn .22s ease}@keyframes pageIn{from{opacity:.25;transform:translateY(4px)}}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:3px;margin-bottom:14px;border-radius:12px;background:var(--line)}.segment{min-height:36px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:inherit;font-size:14px;font-weight:600}.segment.active{background:var(--card);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,.12)}.card{margin-bottom:14px;padding:18px;border:1px solid color-mix(in srgb,var(--line) 75%,transparent);border-radius:20px;background:var(--card);box-shadow:var(--shadow)}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}.section-heading h2,.about-card h2{margin:0;font-size:18px;letter-spacing:-.01em}.section-heading p,.about-card p{margin:3px 0 0;color:var(--muted);font-size:13px}.pill{padding:5px 9px;border-radius:99px;background:rgba(10,132,255,.11);color:var(--blue);font-size:12px;font-weight:600}.field{display:flex;min-height:54px;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.field>span:first-child{flex:1}.field:last-of-type{border-bottom:0}.input-wrap{display:flex;max-width:190px;align-items:center;justify-content:flex-end;gap:6px;color:var(--muted)}.input-wrap input{width:145px}.input-wrap.suffix input{width:90px}.input-wrap b{font-size:14px;font-weight:500}input,select{min-height:40px;border:0;outline:none;background:transparent;color:var(--text);font:inherit;font-size:17px;text-align:right}select{padding-right:5px}.readonly strong{font-size:17px}.form-error{min-height:0;margin:8px 0 0;color:var(--red);font-size:13px}.form-error:empty{margin:0}.primary-button,.secondary-button{width:100%;min-height:50px;margin-top:14px;border:0;border-radius:14px;font:inherit;font-weight:650;cursor:pointer}.primary-button{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(10,132,255,.22)}.primary-button:active{background:var(--blue-pressed);transform:scale(.99)}.secondary-button{background:rgba(10,132,255,.11);color:var(--blue)}.result-card{overflow:hidden;background:linear-gradient(145deg,#0a84ff,#0066d8);color:#fff;border:0}.result-label{margin:0 0 1px;color:rgba(255,255,255,.75);font-size:13px}.hero-value{margin:0 0 20px;font-size:38px;font-weight:720;letter-spacing:-.04em}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.result-grid div{min-width:0}.result-grid span{display:block;color:rgba(255,255,255,.68);font-size:12px}.result-grid strong{display:block;margin-top:3px;overflow:hidden;font-size:15px;text-overflow:ellipsis}.simulation-results{display:grid;gap:9px;margin-top:14px}.simulation-results article{padding:13px;border-radius:13px;background:var(--card-soft)}.simulation-results span,.simulation-results small{display:block;color:var(--muted);font-size:12px}.simulation-results strong{display:block;margin:4px 0;color:var(--green);font-size:16px}.hidden{display:none}.text-button{border:0;background:transparent;color:var(--blue);font:inherit;font-size:14px;white-space:nowrap}.text-button.danger{color:var(--red)}.table-scroll{overflow:auto;margin:0 -18px;padding:0 18px;-webkit-overflow-scrolling:touch}table{width:100%;min-width:550px;border-collapse:collapse;font-size:13px;text-align:right}th{padding:9px 8px;color:var(--muted);font-weight:500}td{padding:11px 8px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}th:first-child,td:first-child{padding-left:0;text-align:left}.export-button{margin-top:16px}.history-list{display:grid;gap:9px}.history-item{display:grid;grid-template-columns:1fr auto;gap:4px 12px;width:100%;padding:14px;border:0;border-radius:14px;background:var(--card-soft);color:var(--text);font:inherit;text-align:left}.history-item strong{font-size:17px}.history-item .amount{grid-row:1/3;grid-column:2;align-self:center;color:var(--blue);font-weight:650}.history-item small{color:var(--muted)}.empty-state{padding:44px 16px;color:var(--muted);text-align:center}.settings-card .save-notice{height:0;margin:0;color:var(--green);font-size:13px;text-align:center;opacity:0;transition:.2s}.settings-card .save-notice.show{height:auto;margin-top:9px;opacity:1}.about-card{display:flex;align-items:center;gap:14px}.app-icon{flex:none;width:52px;height:52px;border-radius:15px;font-size:26px}.about-card p{line-height:1.45}.bottom-nav{position:fixed;z-index:10;right:0;bottom:0;left:0;display:flex;justify-content:center;gap:0;padding:7px max(16px,calc((100vw - 520px)/2 + 16px)) calc(7px + var(--safe-bottom));border-top:1px solid color-mix(in srgb,var(--line) 80%,transparent);background:color-mix(in srgb,var(--card) 88%,transparent);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}.nav-item{display:flex;max-width:163px;min-height:48px;flex:1;flex-direction:column;align-items:center;justify-content:center;border:0;background:transparent;color:var(--muted);font:inherit;font-size:10px}.nav-item.active{color:var(--blue)}.nav-icon{height:25px;font-size:21px;line-height:23px}@media(max-width:360px){.app-shell{padding-right:11px;padding-left:11px}.card{padding:15px}.hero-value{font-size:34px}.input-wrap{max-width:165px}.input-wrap input{width:130px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
html[data-theme="dark"]{--bg:#000;--card:#1c1c1e;--card-soft:#2c2c2e;--text:#f5f5f7;--muted:#98989f;--line:#38383a;--shadow:none}html[data-theme="light"]{--bg:#f2f2f7;--card:#fff;--card-soft:#f7f7fa;--text:#111114;--muted:#74747b;--line:#e5e5ea;--shadow:0 8px 28px rgba(0,0,0,.06)}@media(prefers-color-scheme:dark){:root{--bg:#000;--card:#1c1c1e;--card-soft:#2c2c2e;--text:#f5f5f7;--muted:#98989f;--line:#38383a;--shadow:none}}
.method-field{padding:12px 0 2px}.method-field>span{display:block;margin-bottom:9px}.method-switch{display:grid;grid-template-columns:1fr 1fr;gap:8px}.method-button{min-height:42px;border:1px solid var(--line);border-radius:12px;background:var(--card-soft);color:var(--muted);font:inherit;font-size:14px;font-weight:600}.method-button.active{border-color:var(--blue);background:rgba(10,132,255,.11);color:var(--blue)}