/* Aurora original calculators — responsive dark interface */
.tool-hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 74% 10%,#244b757a,transparent 55%),linear-gradient(130deg,#0b1425,#172c45);border-bottom:1px solid #6f89a22a}
.tool-hero:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(#d7e6ff08 1px,transparent 1px),linear-gradient(90deg,#d7e6ff08 1px,transparent 1px);background-size:36px 36px;mask-image:linear-gradient(90deg,transparent,#000)}
.tool-hero-inner{position:relative;padding:58px 0 78px;max-width:1000px}
.tool-hero h1{font-size:clamp(40px,5vw,70px);line-height:1.05;letter-spacing:-.052em;margin:16px 0 17px;max-width:880px}
.tool-hero p.intro{color:#c9d7e7;line-height:1.6;max-width:640px;font-size:16px}
.tool-layout{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;margin-top:4px;z-index:1}
.tool-panel,.tool-answer{background:linear-gradient(145deg,#1a2e47,#0d192a);border:1px solid #b1c8e034;border-radius:18px;padding:28px 28px 30px;box-shadow:0 16px 45px #0005;min-width:0}
.tool-answer{background:radial-gradient(ellipse at 80% 0%,#4879b043,transparent 66%),linear-gradient(135deg,#203553,#102137)}
.tool-panel h2,.tool-answer h2{font-size:24px;letter-spacing:-.025em;line-height:1.2;margin:0 0 12px}
.tool-field{margin:16px 0 20px}.tool-field label{display:block;color:#deebfb;font-weight:700;font-size:13px;margin-bottom:8px}.tool-field input,.tool-field select{width:100%;min-height:48px;border:1px solid #8ca6c37a;background:#0d1a2b;color:white;padding:10px 13px;border-radius:9px;font-size:16px;font-family:inherit;font-variant-numeric:tabular-nums}.tool-field input:focus-visible,.tool-field select:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.tool-field small{color:#afc1d8;display:block;font-size:11px;line-height:1.4;margin-top:6px}
.tool-double{display:grid;grid-template-columns:1fr 1fr;gap:12px}.tool-panel .tool-copy{color:#c0d0e2;font-size:13px;line-height:1.6}
.tool-display-label{color:#bacbe0;font-size:11px;letter-spacing:.11em;text-transform:uppercase;font-weight:750;margin-bottom:10px}
.tool-display{display:block;font-size:clamp(40px,5vw,61px);font-weight:800;color:var(--lime);line-height:1.12;letter-spacing:-.055em;font-variant-numeric:tabular-nums;margin:8px 0 12px}
.tool-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px;border-top:1px solid #7895b34c;margin-top:19px;padding-top:20px}
.tool-metrics span{display:block;font-size:12px;color:#bbcbde;margin-bottom:7px}.tool-metrics strong{font-size:21px;color:#f4f8ff;letter-spacing:-.025em;font-variant-numeric:tabular-nums}
.tool-note{font-size:12px;color:#bdcbdd;line-height:1.65;margin:16px 0 17px}
.tool-cta{display:flex;flex-wrap:wrap;align-items:center;gap:13px;margin-top:20px}.tool-cta .cta{max-width:350px;width:100%;min-height:56px}.tool-paid{color:#b9cade;font-size:12px}
.tool-switch{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:24px;padding-bottom:16px}.tool-switch a{border-radius:999px;border:1px solid #9aadc758;color:#d7e6f9;font-size:13px;padding:9px 15px;text-decoration:none;transition:.2s}.tool-switch a[aria-current=page],.tool-switch a:hover{background:#d5ff79;color:#0d1725;border-color:#d5ff79}
.tool-explain{padding:35px 0 70px}.tool-explain h2{font-size:clamp(24px,3.2vw,38px);line-height:1.15;letter-spacing:-.035em;margin-bottom:14px}.tool-explain p{max-width:880px;color:#c2d0e3;font-size:14px;line-height:1.7}.tool-explain h3{font-size:18px;margin:21px 0 9px}.tool-explain .subtle{font-size:12px;color:#adc0d8}
.tool-chart{display:flex;height:13px;overflow:hidden;border-radius:99px;background:#40526e;margin:23px 0 11px}.tool-chart span{display:block;transition:width .12s}.tool-chart .principal{background:var(--lime)}.tool-chart .interest{background:#5c9add}.tool-legend{display:flex;gap:18px;flex-wrap:wrap;color:#b9cbe0;font-size:12px}.tool-legend b{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;background:var(--lime)}.tool-legend .int b{background:#5c9add}
.tool-compare-metrics{padding:13px 0;border-bottom:1px solid #a9b9cf37}.tool-compare-metrics:first-child{padding-top:0}.tool-compare-metrics strong{color:white;font-size:23px}.tool-winner{display:block;font-size:12px;color:var(--lime);margin-top:11px}
.tool-flex{display:flex;gap:14px;flex-wrap:wrap}.tool-flex>*{flex:1;min-width:190px}.tool-answer .cta{font-size:14px}
.tool-link{display:inline-flex;align-items:center;gap:8px;color:var(--lime);text-decoration:none;font-weight:700;padding:7px 0}
.tool-summary{color:#f0f7ff;font-size:14px;line-height:1.5}
@media(max-width:900px){.tool-layout{grid-template-columns:1fr}.tool-hero-inner{padding:39px 0 63px}.tool-panel,.tool-answer{padding:23px}.tool-display{font-size:52px}}
@media(max-width:720px){.tool-hero-inner{padding:30px 0 58px}.tool-hero h1{font-size:43px}.tool-hero p.intro{font-size:13px}.tool-layout{margin-top:4px;gap:14px}.tool-display{font-size:48px}.tool-metrics strong{font-size:19px}.tool-explain{padding-bottom:45px}.tool-cta .cta{max-width:none}}
@media(max-width:390px){.tool-double{grid-template-columns:1fr}.tool-display{font-size:43px}.tool-panel,.tool-answer{padding:20px 16px}}
@media(prefers-reduced-motion:reduce){.tool-chart span,.tool-switch a{transition:none}}

.tool-share{display:inline-flex;gap:8px;align-items:center;min-height:38px;margin:13px 0 0;border:1px solid #a6c2df65;border-radius:10px;color:#e6f2ff;background:transparent;padding:7px 13px;cursor:pointer;font-size:13px;font-family:inherit;font-weight:700}.tool-share:hover,.tool-share:focus-visible{border-color:var(--lime);color:var(--lime)}.tool-share-status{color:var(--lime);font-size:12px;margin:0 0 0 8px}.guide-extra-link{margin-top:19px}.guide-extra-link a{color:var(--lime)}