@font-face {
  font-family: "Code";
  src: url("../vendor/fonts/jetbrains-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Code";
  src: url("../vendor/fonts/jetbrains-mono-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #111827;
  --muted: #5b6472;
  --line: #d9dde3;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --danger: #b42318;
  --low-bg: #fde2e1;
  --low-fg: #b42318;
  --mid-bg: #fef0c7;
  --mid-fg: #93370d;
  --conf-line: #7a5af8;
  --ok-bg: #d1fadf;
  --ok-fg: #05603a;
  --warn-bg: #fee4e2;
  --warn-fg: #b42318;
  --info-bg: #e0eaff;
  --info-fg: #2d3282;
  --code-font: "Code", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --accent-soft: #e6f4f1;
  color-scheme: light;
}
/* 表示の切り替え: 自動（端末の設定に従う）・ライト・ダーク。data-theme は js/theme.js が付ける */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115;
    --surface: #181b21;
    --text: #eef0f3;
    --muted: #9aa3af;
    --line: #2c313a;
    --accent: #2dd4bf;
    --accent-text: #04201d;
    --danger: #f97066;
    --low-bg: #5a1a17;
    --low-fg: #ffd3cf;
    --mid-bg: #4e3510;
    --mid-fg: #fedf89;
    --conf-line: #a48afb;
    --ok-bg: #0b3d27;
    --ok-fg: #a6f4c5;
    --warn-bg: #55160c;
    --warn-fg: #fecdca;
    --info-bg: #1f235b;
    --info-fg: #c7d7fe;
    --accent-soft: #0e2f2b;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1115;
  --surface: #181b21;
  --text: #eef0f3;
  --muted: #9aa3af;
  --line: #2c313a;
  --accent: #2dd4bf;
  --accent-text: #04201d;
  --danger: #f97066;
  --low-bg: #5a1a17;
  --low-fg: #ffd3cf;
  --mid-bg: #4e3510;
  --mid-fg: #fedf89;
  --conf-line: #a48afb;
  --ok-bg: #0b3d27;
  --ok-fg: #a6f4c5;
  --warn-bg: #55160c;
  --warn-fg: #fecdca;
  --info-bg: #1f235b;
  --info-fg: #c7d7fe;
  --accent-soft: #0e2f2b;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 760px;
  margin: 0 auto;
  padding: 12px 16px 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { border-radius: 8px; }
.top-actions { display: flex; gap: 6px; }
.icon-button {
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.icon-button svg { width: 20px; height: 20px; display: block; }

main { max-width: 760px; margin: 0 auto; padding: 8px 16px 24px; }

.intro { padding: 12px 0 20px; }
.intro h1 { margin: 8px 0 8px; font-size: clamp(24px, 6vw, 32px); line-height: 1.3; letter-spacing: -.01em; }
.lead { color: var(--muted); margin: 0 0 16px; }
.flow { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 0; margin: 0 0 16px; }
.flow li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}
.flow-n {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 13px;
}
.trust { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 6px; font-size: 14px; }
.trust li { display: flex; gap: 8px; align-items: flex-start; }
.trust li::before {
  content: "✓";
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
.intro-links { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 0; font-size: 14px; }
.intro-links a, .linklike { color: var(--accent); font-weight: 600; }
.linklike {
  border: none;
  background: none;
  padding: 0;
  min-height: 0;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}
.card h2 { display: flex; align-items: center; gap: 10px; margin: 0 0 8px; font-size: 18px; }
.step {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 14px;
}
.card h3 { font-size: 16px; margin: 18px 0 4px; }
.card h3:first-of-type { margin-top: 8px; }
textarea {
  display: block;
  width: 100%;
  margin: 8px 0 0;
  padding: 10px;
  font: 15px/1.4 var(--code-font);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  resize: vertical;
}
.hint { color: var(--muted); font-size: 14px; margin: 6px 0 12px; }
.note { font-size: 14px; border-left: 3px solid var(--danger); padding: 4px 0 4px 10px; margin: 16px 0 0; }

.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0; }

.button, button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 16px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.button.danger, button.danger { color: var(--danger); }
button:disabled { opacity: .45; cursor: default; }
button.small { padding: 6px 10px; min-height: 36px; font-size: 14px; }
button.ghost { border: none; background: none; color: var(--accent); min-height: 36px; padding: 6px 8px; }
.button.is-done { background: var(--surface); color: var(--accent); border-color: var(--accent); }

.status { color: var(--muted); font-size: 14px; }
progress { width: 100%; height: 6px; accent-color: var(--accent); }

.images { list-style: none; padding: 0; margin: 8px 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.images li { border: 1px solid var(--line); border-radius: 10px; padding: 8px; overflow: hidden; }
.images img { display: block; width: 100%; height: 120px; object-fit: contain; transition: transform .2s; }
.images .tools { display: flex; gap: 6px; margin-top: 8px; }
.images .tools button { flex: 1; }

.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.legend > span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { font: 600 15px var(--code-font); font-style: normal; padding: 0 4px; border-radius: 4px; color: var(--text); }

.summary { font-weight: 600; margin: 8px 0; }
.summary.has-warn { color: var(--warn-fg); }

.codes { list-style: none; counter-reset: code; padding: 0; margin: 0; }
.code-row {
  counter-increment: code;
  border-top: 1px solid var(--line);
  padding: 12px 0;
}
.code-row:first-child { border-top: none; }
.crop {
  display: block;
  max-width: calc(100% - 28px);
  max-height: 90px;
  border-radius: 6px;
  margin: 0 0 8px 28px;
  background: #fff;
}
.code-line { display: flex; align-items: center; gap: 6px; }
.code-line::before {
  content: counter(code);
  width: 22px;
  text-align: right;
  color: var(--muted);
  font-size: 13px;
  flex: none;
}
.code-field { position: relative; flex: 1; min-width: 0; }

/* 入力欄の文字を透明にして、同じ位置に色付きの文字を重ねる */
.code-input, .mirror {
  font: 600 20px/1 var(--code-font);
  letter-spacing: .04em;
  padding: 10px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  width: 100%;
  white-space: pre;
}
.code-input {
  position: relative;
  background: transparent;
  color: transparent;
  caret-color: var(--text);
  border-color: var(--line);
  height: 46px;
}
.code-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.code-input::selection { background: rgba(45, 212, 191, .35); color: transparent; }
.mirror { position: absolute; inset: 0; overflow: hidden; height: 46px; color: var(--text); pointer-events: none; }
.mirror span { border-radius: 3px; }
.c-low { background: var(--low-bg); color: var(--low-fg); }
.c-mid { background: var(--mid-bg); color: var(--mid-fg); }
.c-conf { text-decoration: underline dotted var(--conf-line) 2px; text-underline-offset: 4px; }

.code-meta { display: flex; align-items: center; gap: 6px; margin: 6px 0 0 28px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; flex: 1; }
.badge { font-size: 12px; padding: 1px 8px; border-radius: 999px; }
.badge.ok { background: var(--ok-bg); color: var(--ok-fg); }
.badge.warn { background: var(--warn-bg); color: var(--warn-fg); }
.badge.info { background: var(--info-bg); color: var(--info-fg); }

.groups { display: flex; flex-direction: column; gap: 8px; }

details { border-top: 1px solid var(--line); padding: 10px 0; }
details:first-of-type { border-top: none; }
.card > details:only-child { border: none; padding: 0; }
summary { cursor: pointer; font-weight: 600; min-height: 32px; }
details ol { padding-left: 20px; }
details li { margin: 4px 0; }
.bookmarklet {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 2px dashed var(--accent);
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.settings { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-top: 12px; }
.settings label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--text); font-weight: 600; }
.settings small { color: var(--muted); font-size: 13px; font-weight: 400; line-height: 1.5; }
.settings input, .settings select {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  min-height: 42px;
}

.foot { max-width: 760px; margin: 0 auto; padding: 0 16px 32px; color: var(--muted); font-size: 13px; }
.foot p { margin: 0 0 8px; }
.foot .linklike { color: var(--accent); }

.advanced { font-weight: 600; margin-top: 12px; }
.device-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  vertical-align: middle;
}
.device-badge[hidden] { display: none; }

.terms {
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  overflow: auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3);
}
.terms::backdrop { background: rgba(0, 0, 0, .5); }
.terms h2 { margin: 0 0 12px; font-size: 20px; outline: none; }
.terms ul { padding-left: 20px; margin: 0 0 12px; }
.terms li { margin: 6px 0; font-size: 15px; }
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 12px 0; font-weight: 600; cursor: pointer; }
.consent input { width: 22px; height: 22px; flex: none; margin: 1px 0 0; accent-color: var(--accent); }
#terms-accept, #terms-close { width: 100%; }
#terms-consent[hidden], #terms-close[hidden] { display: none; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .25);
  z-index: 10;
}