/* style.css — 変換のページ。外部のフォントは読み込まない（OS の日本語フォントを使う） */
:root {
  --text: #1e2b33;
  --muted: #5b6b73;
  --line: #cbd5d9;
  --bg: #ffffff;
  --panel: #f3f7f8;
  --teal: #0e5e6f;
  --teal-dark: #0a4552;
  --teal-light: #e3eff1;
  --red: #b83227;
  --red-light: #f8e1de;
  --orange-light: #fcebdd;
  --focus: #d9731f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "BIZ UDPGothic", "Yu Gothic UI", "Meiryo", "Hiragino Sans", sans-serif;
  font-size: 18px;
  line-height: 1.7;
}

.page-header {
  background: var(--teal);
  color: #fff;
  padding: 24px 16px;
}
.page-header h1 {
  margin: 0 auto;
  max-width: 880px;
  font-size: 28px;
  line-height: 1.4;
}
.page-header .sub {
  display: block;
  font-size: 17px;
  font-weight: normal;
  opacity: 0.85;
}
.page-header .safe {
  margin: 12px auto 0;
  max-width: 880px;
  font-size: 16px;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.step { margin-top: 8px; }
.step h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  color: var(--teal-dark);
  margin: 8px 0 16px;
}
.num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-size: 20px;
  flex: none;
}

.howto {
  background: var(--panel);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 20px;
}
.howto summary {
  cursor: pointer;
  font-weight: bold;
  color: var(--teal-dark);
}
.howto ol { margin: 12px 0 4px; padding-left: 1.4em; }
.note { color: var(--muted); font-size: 16px; }

.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 40px 16px;
  border: 3px dashed var(--line);
  border-radius: 12px;
  background: #fafcfc;
  text-align: center;
  cursor: pointer;
}
.drop.over { border-color: var(--teal); background: var(--teal-light); }
.drop-main { font-size: 20px; font-weight: bold; }
.drop-or { color: var(--muted); }
.drop input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.drop:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }

.button {
  display: inline-block;
  border: 2px solid var(--teal);
  border-radius: 8px;
  padding: 12px 28px;
  font: inherit;
  font-weight: bold;
  cursor: pointer;
}
.button.primary { background: var(--teal); color: #fff; }
.button.primary:hover { background: var(--teal-dark); }
.button.secondary { background: #fff; color: var(--teal); }
.button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.summary { list-style: none; padding: 0; margin: 0 0 12px; }
.summary li { padding: 6px 0; border-bottom: 1px solid var(--panel); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 16px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--panel); white-space: nowrap; }
td { word-break: break-all; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.error {
  background: var(--red-light);
  color: var(--red);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 20px;
  font-weight: bold;
}

.cleared { color: var(--teal-dark); }
.import-steps { background: var(--teal-light); border-radius: 8px; padding: 16px 16px 16px 2.2em; }
.notes { padding-left: 1.2em; }
.warning {
  background: var(--orange-light);
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
}
.warning ul { margin: 8px 0; }

.login {
  max-width: 440px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.login label { display: flex; flex-direction: column; font-weight: bold; gap: 6px; }
.login input {
  font: inherit;
  padding: 10px 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
}
.login input:focus { outline: 3px solid var(--focus); outline-offset: 1px; border-color: var(--teal); }
.login .button { align-self: flex-start; }
.page-footer a { color: var(--muted); }

.page-footer {
  max-width: 880px;
  margin: 0 auto;
  padding: 16px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .page-header h1 { font-size: 22px; }
  .step h2 { font-size: 19px; }
}