/* Free tool pages (/<lang>/tools/...). Same palette as the landing page. */
:root {
  color-scheme: light dark;
  --blue: #0044eb; --navy: #1a3454; --dark: #01213a; --orange: #f86b45;
  --bg: #faf9f5; --card: #ffffff; --tint: #f5f7fe; --ink: #404046; --head: #1a3454;
  --muted: #6b6b73; --line: #e7e5df; --up: #1a7f37; --down: #c4321b; --prev: #a3a3ab;
  --font: "Sofia Sans", -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-head: "Jost", "Sofia Sans", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1418; --card: #172027; --tint: #18232d; --ink: #d6d8dc; --head: #eef1f5;
    --muted: #9aa1aa; --line: #2a343d; --up: #4ac26b; --down: #ff7b63; --prev: #5d6670; --blue: #4d7dff;
  }
}
html[lang="zh-CN"] { --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif; --font-head: var(--font); }
html[lang="ja"] { --font: "Hiragino Sans", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif; --font-head: var(--font); }
html[lang="ko"] { --font: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif; --font-head: var(--font); }
html[lang="ar"] { --font: "Segoe UI Arabic", "Geeza Pro", "Noto Sans Arabic", Tahoma, sans-serif; --font-head: var(--font); }

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--font); }
[hidden] { display: none !important; }
a { color: var(--blue); }
h1, h2, h3 { color: var(--head); font-family: var(--font-head); line-height: 1.25; }
.t-wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.t-nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 18px; padding-bottom: 18px; }
.t-logo img { display: block; height: 24px; width: auto; }
.t-btn { display: inline-block; border: 0; border-radius: 999px; padding: 11px 22px; font: 600 15px var(--font);
  text-decoration: none; cursor: pointer; text-align: center; }
.t-btn-blue { background: var(--blue); color: #fff; }
.t-btn-navy { background: var(--navy); color: #fff; }
.t-btn:disabled { opacity: .6; cursor: progress; }

.t-hero { padding-top: 32px; padding-bottom: 16px; }
.t-badge { display: inline-block; margin: 0 0 12px; padding: 4px 12px; border-radius: 999px; background: var(--tint);
  color: var(--blue); font-size: 13px; font-weight: 600; }
.t-hero h1 { font-size: clamp(28px, 4.5vw, 44px); margin: 0 0 14px; max-width: 820px; }
.t-lead { font-size: 18px; max-width: 760px; margin: 0 0 28px; }

.t-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px;
  box-shadow: 0 12px 32px rgba(1, 33, 58, .06); }
.t-note { color: var(--muted); font-size: 14px; margin: 12px 0 0; }
#td-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 16px; align-items: end; }
#td-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--head); }
#td-form select { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--ink); font: 15px var(--font); }
.t-msg { margin: 14px 0 0; color: var(--down); }
@media (max-width: 720px) { #td-form { grid-template-columns: 1fr; } }

.t-result { padding-top: 24px; }
.t-result h2 { font-size: 22px; margin: 0 0 16px; }
.t-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.t-kpi { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.t-kpi .k { color: var(--muted); font-size: 13px; }
.t-kpi .v { font: 700 26px var(--font-head); color: var(--head); }
.t-kpi .d { font-size: 14px; }
.up { color: var(--up); } .down { color: var(--down); }
@media (max-width: 560px) { .t-kpis { grid-template-columns: 1fr; } }
.t-chart { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px; margin-bottom: 16px; }
.t-chart svg { display: block; width: 100%; height: 140px; }
.t-legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); }
.t-legend i { display: inline-block; width: 14px; height: 3px; vertical-align: middle; margin-inline-end: 6px; }
.t-findings { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 10px; }
.t-findings li { background: var(--card); border: 1px solid var(--line); border-inline-start: 4px solid var(--orange);
  border-radius: 10px; padding: 12px 16px; }
.t-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.t-tabs button { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px;
  padding: 6px 14px; font: 14px var(--font); cursor: pointer; }
.t-tabs button[aria-selected="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.t-table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.t-table { width: 100%; min-width: 600px; border-collapse: collapse; font-size: 14px; }
.t-table th, .t-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: end; white-space: nowrap; }
.t-table th:first-child, .t-table td:first-child { text-align: start; white-space: normal; overflow-wrap: anywhere; min-width: 180px; }
.t-table th { color: var(--muted); font-weight: 600; }
.t-share { display: inline-flex; align-items: center; gap: 6px; }
.t-share b { display: inline-block; height: 6px; border-radius: 3px; background: var(--orange); }
.t-more { margin-top: 10px; background: none; border: 0; color: var(--blue); font: 600 14px var(--font); cursor: pointer; }

.t-cta { margin-top: 40px; padding-top: 32px; padding-bottom: 32px; background: var(--tint); border-radius: 18px; text-align: center; }
.t-cta h2 { margin: 0 0 8px; }
.t-cta p { max-width: 640px; margin: 0 auto 18px; }
.t-section { padding-top: 40px; }
.t-steps { padding-inline-start: 20px; display: grid; gap: 8px; }
.t-causes { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.t-causes > div { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
.t-causes h3 { margin: 0 0 6px; font-size: 17px; }
.t-causes p { margin: 0; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; color: var(--head); }
details p { margin: 10px 0 0; }
.t-footer { padding-top: 40px; padding-bottom: 32px; color: var(--muted); font-size: 14px; }
.t-langs a { margin-inline-end: 12px; }