/* WCWD common.css (Spec v3)
   Minimal, readable, mobile-safe, shared across all pages. */

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: #111;
  background: #fff;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Noto Sans Mono", monospace; }

.container {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
}

.header {
  border-bottom: 1px solid #e5e5e5;
  background: #fff;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.nav {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.nav a {
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.nav a[aria-current="page"] { border-color: #111; }
.nav a:hover { border-color: #cfcfcf; text-decoration: none; }

.footer {
  border-top: 1px solid #e5e5e5;
  margin-top: 32px;
  padding-top: 16px;
  color: #444;
  font-size: 13px;
}
.footer .muted { color: #666; }

h1 { font-size: 22px; margin: 18px 0 10px; }
h2 { font-size: 18px; margin: 18px 0 10px; }
h3 { font-size: 16px; margin: 16px 0 8px; }
p { margin: 10px 0; }
.small { font-size: 13px; }
.muted { color: #666; }

.card {
  border: 1px solid #e5e5e5;
  border-radius: 14px;
  padding: 14px;
  background: #fff;
}
.card + .card { margin-top: 12px; }
.card-title { font-weight: 700; margin: 0 0 6px; }
.card-sub { margin: 0; color: #555; font-size: 13px; }

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
}
.col-12 { grid-column: span 12; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

.form { display: grid; gap: 10px; }
.label { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.input, .textarea, .select {
  width: 100%;
  border: 1px solid #d9d9d9;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  background: #fff;
  color: #111;
}
.textarea { min-height: 140px; resize: vertical; }
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: #111; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.checkbox, .radio { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; }
.checkbox input, .radio input { transform: translateY(1px); }

.btn {
  appearance: none;
  border: 1px solid #111;
  background: #111;
  color: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.btn:hover { opacity: 0.92; }
.btn:disabled { cursor: not-allowed; opacity: 0.55; }
.btn.secondary { background: #fff; color: #111; }
.btn.secondary:hover { background: #f5f5f5; }
.btn.ghost { background: transparent; color: #111; border-color: #cfcfcf; }
.btn.ghost:hover { background: #fafafa; }

.status {
  border: 1px solid #e5e5e5;
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 13px;
  margin: 12px 0;
}
.status.info    { border-color: #cfd8ff; }
.status.warn    { border-color: #ffe3b0; }
.status.error   { border-color: #ffc4c4; }
.status.success { border-color: #bfe9c7; }

.output { display: grid; gap: 8px; }
.output-actions { display: flex; gap: 8px; flex-wrap: wrap; }

@media (max-width: 720px) {
  .col-6 { grid-column: span 12; }
  .col-4 { grid-column: span 12; }
  .col-3 { grid-column: span 6; }
  .header .container { align-items: flex-start; flex-direction: column; }
}