/* ZeroFee Tools family theme */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --a1: #e11d48; --a2: #fb7185;
  --ink: #1e293b; --muted: #64748b; --line: #e2e8f0; --bg: #f8fafc;
  --card: #ffffff; --ok: #16a34a; --bad: #dc2626;
}
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); line-height: 1.6; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); } .small { font-size: .85rem; } .center { text-align: center; }

/* page header */
#siteHeader { background: linear-gradient(135deg, var(--a1), var(--a2)); color: #fff; padding: 26px 0 0; }
.header-inner { display: flex; align-items: center; }
.brand { display: flex; gap: 14px; align-items: center; }
.hub-link { color: #fff; text-decoration: none; font-size: .85rem; opacity: .85; display: block; margin-bottom: 2px; }
.hub-link:hover { opacity: 1; text-decoration: underline; }
.brand-name { font-size: 1.7rem; line-height: 1.1; }
.brand-tag { opacity: .9; font-size: .9rem; }
.free-banner { text-align: center; font-size: .82rem; padding: 10px 16px 14px; opacity: .95; }

#main { padding: 30px 0 10px; }

/* app chrome */
.app { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; margin: 20px 0 8px; box-shadow: 0 6px 24px rgba(15,23,42,.06); }
.fld-label { display: block; font-size: .92rem; font-weight: 700; margin-bottom: 8px; }
.ta { display: block; width: 100%; padding: 12px 14px; font-size: .95rem; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; border: 1px solid var(--line); border-radius: 12px; background: #fff; color: var(--ink); resize: vertical; min-height: 160px; }
.ta:focus { outline: 2px solid var(--a1); border-color: var(--a1); }
textarea.ta-prose { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
input[type="text"], input[type="number"], select { display: block; width: 100%; padding: 10px 12px; font-size: .95rem; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
input:focus, select:focus { outline: 2px solid var(--a1); border-color: var(--a1); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.btn { border: none; border-radius: 10px; padding: 11px 22px; font-size: .95rem; font-weight: 700; cursor: pointer; }
.btn-primary { background: linear-gradient(135deg, var(--a1), var(--a2)); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: #eef2ff; color: var(--a1); }
.btn-ghost:hover { background: #e0e7ff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.copy-btn { background: #eef2ff; color: var(--a1); border: none; border-radius: 8px; padding: 7px 14px; font-size: .82rem; font-weight: 700; cursor: pointer; white-space: nowrap; }
.copy-btn:hover { background: #e0e7ff; }

/* stat cards */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-top: 16px; }
.stat { background: linear-gradient(135deg, #eef2ff, #f5f3ff); border: 1px solid #c7d2fe; border-radius: 12px; padding: 14px; text-align: center; }
.stat .v { font-size: 1.5rem; font-weight: 800; color: var(--a1); }
.stat .l { font-size: .8rem; color: var(--muted); margin-top: 2px; }

/* tables */
.data-table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: .9rem; }
.data-table th, .data-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.data-table th { background: #f1f5f9; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.data-table tr:hover td { background: #f8fafc; }

/* option rows */
.opt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 14px 0; }
.opt { display: flex; align-items: flex-start; gap: 9px; font-size: .92rem; cursor: pointer; }
.opt input { width: auto; margin-top: 4px; }
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 10px 0; }
.radio-row label { display: flex; align-items: center; gap: 7px; font-size: .92rem; cursor: pointer; }
.radio-row input { width: auto; margin: 0; }

/* output blocks */
.out-label { font-size: .85rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin: 16px 0 6px; }
.out-box { background: #f8fafc; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; font-size: .95rem; white-space: pre-wrap; word-break: break-word; max-height: 340px; overflow: auto; }
pre.code-out { background: #0f172a; color: #e2e8f0; border-radius: 12px; padding: 16px 18px; font-size: .88rem; overflow: auto; max-height: 420px; white-space: pre-wrap; word-break: break-word; }
.result-note { margin-top: 10px; font-size: .9rem; color: var(--muted); }
.result-note strong { color: var(--ok); }

/* case rows */
.case-row { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; }
.case-row .case-name { flex: 0 0 130px; font-size: .82rem; font-weight: 700; color: var(--muted); padding-top: 10px; }
.case-row .case-val { flex: 1; background: #f8fafc; border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; font-size: .92rem; word-break: break-word; min-height: 42px; }
@media (max-width: 560px) { .case-row { flex-direction: column; } .case-row .case-name { flex: none; padding-top: 0; } }

/* editor split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } }
.preview-pane { border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; background: #fff; min-height: 200px; overflow: auto; max-height: 480px; }
.preview-pane h1, .preview-pane h2, .preview-pane h3 { margin: .6em 0 .3em; color: #312e81; }
.preview-pane p { margin: .5em 0; }
.preview-pane ul, .preview-pane ol { margin: .4em 0 .4em 1.4em; }
.preview-pane blockquote { border-left: 3px solid var(--a1); padding-left: 12px; color: var(--muted); margin: .6em 0; }
.preview-pane pre { background: #0f172a; color: #e2e8f0; border-radius: 8px; padding: 12px; overflow: auto; font-size: .85rem; }
.preview-pane code { background: #f1f5f9; border-radius: 4px; padding: 1px 5px; font-size: .88em; }
.preview-pane pre code { background: none; padding: 0; }

/* toast */
.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px); background: #1e293b; color: #fff; padding: 12px 20px; border-radius: 12px; font-size: .9rem; opacity: 0; pointer-events: none; transition: .25s; z-index: 50; max-width: 90vw; text-align: center; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* tool extras */
.inv{background:#fef3c7;border-bottom:2px solid #d97706;border-radius:4px;padding:0 2px}
.table-wrap{overflow-x:auto}