/* ZeroFee Tools - Loan Calculator */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: #f8fafc; color: #1e293b; line-height: 1.6; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
#siteHeader { background: linear-gradient(135deg, #6d28d9, #8b5cf6); color: #fff; padding: 42px 0 34px; }
.crumb { color: #e0e7ff; text-decoration: none; font-size: .9rem; }
.crumb:hover { text-decoration: underline; }
#siteHeader h1 { font-size: 2rem; margin: 10px 0 6px; letter-spacing: -0.5px; }
#siteHeader .sub { opacity: .93; max-width: 640px; }
main#main { padding: 26px 0 44px; }
.card { background: #fff; border-radius: 14px; padding: 24px; margin-bottom: 20px; box-shadow: 0 2px 16px rgba(15,23,42,.06); }
.card h2 { font-size: 1.2rem; margin-bottom: 14px; color: #312e81; }
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; font-size: .95rem; }
.field input[type=number], .field input[type=text], .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 2px solid #e2e8f0; border-radius: 10px;
  font-size: 1rem; font-family: inherit; background: #fff; color: #1e293b; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: #6d28d9; }
.frow { display: flex; gap: 12px; flex-wrap: wrap; }
.frow .field { flex: 1; min-width: 150px; }
.btn { display: inline-block; background: linear-gradient(135deg, #6d28d9, #8b5cf6); color: #fff; border: none;
  padding: 13px 28px; font-size: 1rem; font-weight: 700; border-radius: 10px; cursor: pointer; }
.btn:hover { opacity: .93; }
.btn-ghost { background: #fff; color: #6d28d9; border: 2px solid #6d28d9; }
.seg { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.seg button { flex: 1; min-width: 140px; padding: 12px; border: 2px solid #e2e8f0; background: #fff;
  border-radius: 10px; font-weight: 700; cursor: pointer; color: #475569; font-size: .95rem; }
.seg button.active { border-color: #6d28d9; color: #6d28d9; background: #eef2ff; }
.result-hero { text-align: center; background: linear-gradient(135deg, #6d28d9, #8b5cf6); color: #fff; }
.result-hero .rlabel { display: block; opacity: .92; font-size: .95rem; margin-bottom: 6px; }
.result-hero .rval { font-size: 2.6rem; font-weight: 800; letter-spacing: -1px; }
.result-hero .rsub { display: block; margin-top: 8px; opacity: .9; font-size: .95rem; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-top: 16px; }
.stat { background: #fff; border-radius: 12px; padding: 16px; text-align: center; box-shadow: 0 2px 16px rgba(15,23,42,.06); }
.stat .slabel { display: block; font-size: .8rem; color: #64748b; margin-bottom: 6px; }
.stat .sval { font-size: 1.3rem; font-weight: 800; color: #6d28d9; }
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #f1f5f9; }
table.data th { color: #64748b; font-size: .78rem; text-transform: uppercase; letter-spacing: .4px; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tfoot td { border-bottom: none; border-top: 2px solid #e2e8f0; font-weight: 700; }
.note { font-size: .87rem; color: #64748b; margin-top: 10px; }
.warn { background: #fffbeb; border: 1px solid #fcd34d; border-left: 4px solid #f59e0b;
  border-radius: 10px; padding: 12px 16px; margin: 16px 0; font-size: .92rem; }
.warn strong { color: #92400e; }
.tip-grid { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.tip-grid button { padding: 10px 18px; border: 2px solid #e2e8f0; background: #fff; border-radius: 10px;
  font-weight: 700; cursor: pointer; color: #475569; }
.tip-grid button.active { border-color: #6d28d9; color: #6d28d9; background: #eef2ff; }
.related-tools { margin: 8px 0 24px; }
.related-tools h2 { font-size: 1.25rem; color: #312e81; margin-bottom: 12px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.related-card { display: block; background: #fff; border: 1px solid #e5e7eb; border-radius: 12px;
  padding: 16px; text-decoration: none; color: inherit; }
.related-card:hover { border-color: #6d28d9; box-shadow: 0 4px 18px rgba(15,23,42,.08); }
.related-card strong { display: block; color: #6d28d9; margin-bottom: 6px; }
.related-card span { font-size: .9rem; color: #475569; }
.zfaq { margin: 24px 0; }
.mode-panel[hidden] { display: none; }
.formula { background: #f8fafc; border: 1px dashed #cbd5e1; border-radius: 10px; padding: 10px 14px;
  margin-top: 12px; font-size: .92rem; color: #475569; }
@media (max-width: 640px) {
  #siteHeader h1 { font-size: 1.5rem; }
  .result-hero .rval { font-size: 2rem; }
  .frow { flex-direction: column; }
}