:root{--bg:#f6f4ee;--surface:#ffffff;--ink:#15140f;--ink-soft:#5c5748;--line:#e6e1d3;--dark:#131210;--dark-soft:#c9c4b6;--accent:#f4c60c;--accent-ink:#131210;--navy:#1c2a3a;font-family:"Inter","Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}.shell{min-height:100vh}header{height:76px;background:var(--dark);color:#fff;padding:0 5%;display:flex;align-items:center;justify-content:space-between}.brand{font-size:1.3rem;font-weight:800;letter-spacing:-.02em}.sub{opacity:.7;font-size:.9rem}main{max-width:1200px;margin:0 auto;padding:36px 20px 60px}.hero{margin-bottom:26px}.hero h1{font-size:2.6rem;margin:.2rem 0;font-weight:800;letter-spacing:-.03em}.hero p,.hint{color:var(--ink-soft);line-height:1.55}.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;margin-bottom:24px;box-shadow:0 10px 28px #1312100a}.grid.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.four{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}label{font-weight:650;display:flex;flex-direction:column;gap:7px}input,select,textarea{border:1px solid #d8d3c3;border-radius:9px;padding:10px;font-size:1rem;background:#fff;color:var(--ink);font-family:inherit}textarea{resize:vertical;min-height:84px}.row{display:grid;grid-template-columns:2fr 1.2fr 1fr 1fr auto;gap:8px;margin:10px 0}.button,button{border:0;border-radius:9px;padding:11px 18px;background:var(--accent);color:var(--accent-ink);font-weight:750;cursor:pointer}button.secondary{background:#efece2;color:var(--ink)}button.danger{background:#fbe8e2;color:#8a2f18}.actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.option{margin-top:18px;display:flex;gap:8px;align-items:center}.option label{display:block}.summary{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:20px}.summary div{background:#f1eee3;border-radius:12px;padding:13px}.summary span{display:block;margin-top:4px;color:var(--ink-soft)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}table{border-collapse:collapse;width:100%;font-size:.88rem;white-space:nowrap}th,td{padding:9px 11px;border-bottom:1px solid #efece0;text-align:right}th:first-child,td:first-child{text-align:left;position:sticky;left:0;background:#fff}thead th{background:#f1eee3;font-weight:800}.notes{margin-top:18px;background:#f1eee3;border-radius:12px;padding:14px;color:var(--ink-soft);line-height:1.5}@media(max-width:800px){.grid.two,.grid.three,.grid.four,.summary{grid-template-columns:1fr}.row{grid-template-columns:1fr}.hero h1{font-size:1.9rem}}

.results-actions{display:flex;justify-content:flex-end;margin-top:16px}

/* Nav header */
header .brand{color:#fff;text-decoration:none}
.site-nav{display:flex;gap:22px}
.site-nav a{color:var(--dark-soft);text-decoration:none;font-weight:600;font-size:.95rem}
.site-nav a:hover{color:var(--accent)}
.site-nav a.active{color:var(--accent)}

/* Footer */
.site-footer{max-width:1200px;margin:0 auto;padding:20px 20px 40px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;color:var(--ink-soft);font-size:.85rem;border-top:1px solid var(--line)}
.site-footer nav{display:flex;gap:16px}
.site-footer a{color:var(--ink-soft)}

/* Article pages (Guide / Privacy) */
.article h2{margin-top:1.6em;font-weight:800;letter-spacing:-.02em}
.article h2:first-child{margin-top:0}
.article p,.article li{color:var(--ink-soft);line-height:1.65}
.article ul{padding-left:1.2em}
a.button{display:inline-block;text-decoration:none}

/* Ad slots */
.ad-slot{margin:26px 0;padding:10px;border:1px dashed var(--line);border-radius:12px;text-align:center;min-height:60px}
.ad-slot::before{content:attr(data-label);display:block;font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:#a49f8e;margin-bottom:6px}

/* Cookie / consent banner */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:1000;background:var(--dark);color:#f6f4ee;padding:16px 5%;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;box-shadow:0 -6px 24px #0000002e}
.cookie-banner p{margin:0;max-width:640px;font-size:.9rem;line-height:1.5;color:var(--dark-soft)}
.cookie-banner a{color:var(--accent)}
.cookie-actions{display:flex;gap:10px;flex-shrink:0}
@media(max-width:800px){.site-nav{gap:14px}.site-footer{flex-direction:column;align-items:flex-start}}

/* WASM boot / error UI */
.wasm-loading{padding:60px 20px;text-align:center;color:var(--ink-soft);font-size:1.1rem}
#blazor-error-ui{display:none;position:fixed;left:0;right:0;bottom:0;z-index:1100;background:var(--accent);color:var(--accent-ink);padding:12px 20px;text-align:center;box-shadow:0 -4px 16px #00000022}
#blazor-error-ui .dismiss{cursor:pointer;float:right;padding:0 6px}
#blazor-error-ui .reload{color:var(--accent-ink);text-decoration:underline;margin-left:8px}

/* Calculator tab switcher */
.calc-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}
.calc-tab{background:#efece2;color:var(--ink-soft);border-radius:999px;padding:10px 18px;font-weight:700;font-size:.92rem;border:1px solid transparent}
.calc-tab.active{background:var(--navy);color:#fff}
.calc-tab:hover:not(.active){border-color:var(--line)}

/* Calculator result panels */
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:6px}
.result-item{background:#f1eee3;border-radius:12px;padding:16px}
.result-item b{display:block;font-size:1.3rem;letter-spacing:-.01em}
.result-item span{display:block;margin-top:4px;color:var(--ink-soft);font-size:.85rem}
.result-highlight{background:var(--navy);color:#fff;border-radius:14px;padding:20px;margin:18px 0}
.result-highlight b{display:block;font-size:1.7rem;letter-spacing:-.02em}
.result-highlight span{display:block;margin-top:6px;color:var(--dark-soft);font-size:.9rem}
.field-note{color:var(--ink-soft);font-size:.82rem;margin-top:-8px;margin-bottom:14px}
.swap-note{background:#fdf3d9;border:1px solid #f0dd9c;color:#7a5b06;border-radius:10px;padding:10px 14px;margin-bottom:16px;font-size:.9rem}

.calc-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}
.calc-tab{background:#efece2;color:var(--ink);border:1px solid var(--line);padding:10px 14px;border-radius:10px;font-weight:750}
.calc-tab:hover{background:#e7e2d4}
.calc-tab.active{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:18px}
.result-item{background:#f1eee3;border-radius:12px;padding:14px;text-align:center}
.result-item b{display:block;font-size:1.15rem}
.result-item span{display:block;color:var(--ink-soft);font-size:.88rem;margin-top:4px}
.warning{margin-top:18px;padding:12px 14px;background:#fbe8e2;border-radius:10px;color:#8a2f18}
select{border:1px solid #d8d3c3;border-radius:9px;padding:10px;font-size:1rem;background:#fff;color:var(--ink)}
@media(max-width:800px){.calc-tabs{gap:6px}.calc-tab{padding:9px 11px}}