/* マネコン スタイル
 *  最小限の Vanilla CSS。後で Tailwind / Astro へ移行も可能。
 */

:root {
  --bg: #ffffff;
  --bg-soft: #f9fafb;
  --fg: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #1f2937;
  --primary-hover: #374151;
  --safe: #10b981;
  --caution: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

a { color: inherit; }

.container { max-width: 880px; margin: 0 auto; padding: 0 20px; }

/* ====== Hero ====== */
.hero {
  padding: 64px 20px 48px;
  text-align: center;
  background: linear-gradient(180deg, #f9fafb, #ffffff);
}
.brand {
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 12px;
}
.tag {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 32px;
}
.lead {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 16px auto;
  max-width: 16em;
}
.sub {
  color: var(--muted);
  font-size: 15px;
  max-width: 32em;
  margin: 12px auto 24px;
}
.cta-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.note { color: var(--muted); font-size: 13px; margin-top: 18px; }

/* ====== Buttons ====== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-link {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 8px;
}

/* ====== Sections ====== */
.section { padding: 56px 0; }
.section h3 { font-size: 24px; margin: 0 0 16px; }
.section p { color: #374151; max-width: 36em; }
.bg-soft { background: var(--bg-soft); }

/* ====== Plans ====== */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 32px 0;
}
.plan {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.plan-pro { border-color: var(--primary); border-width: 2px; }
.plan h4 { margin: 0 0 8px; font-size: 18px; }
.plan .price { font-size: 28px; font-weight: 800; margin: 4px 0 16px; }
.plan .price span { font-size: 14px; font-weight: 400; color: var(--muted); }
.plan ul { padding-left: 20px; margin: 0 0 24px; color: #374151; }
.plan ul li { margin: 4px 0; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--safe);
  color: #fff;
  border-radius: 4px;
  font-size: 11px;
  margin-left: 6px;
}

/* ====== Auth card ====== */
.auth-card {
  max-width: 420px;
  margin: 80px auto;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.brand-sm {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin: 0 0 8px;
  font-weight: 600;
}
.brand-sm a { text-decoration: none; }
.muted { color: var(--muted); }
.muted-sm { color: var(--muted); font-size: 13px; }
.small { font-size: 12px; }

.form { display: flex; flex-direction: column; gap: 14px; }
.form label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: #374151;
  gap: 6px;
}
.form input, .form select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 15px;
}

.message {
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-top: 12px;
}
.message-success { background: #ecfdf5; color: #065f46; }
.message-error { background: #fef2f2; color: #991b1b; }
.message-info { background: #eff6ff; color: #1e40af; }

/* ====== Topbar / Dashboard ====== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar nav {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar nav a { font-size: 14px; color: var(--muted); text-decoration: none; }
.tenant-select {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fff;
}

.dashboard {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin: 16px 0;
  box-shadow: var(--shadow);
}
.card.highlight { border-color: var(--primary); }
.card h2 { margin: 0 0 12px; font-size: 18px; }
.card.upsell { background: linear-gradient(180deg, #f9fafb, #fff); }
.upsell h3 { margin-top: 0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.stat {
  padding: 16px;
  background: var(--bg-soft);
  border-radius: 8px;
}
.stat-label { color: var(--muted); margin: 0 0 4px; font-size: 13px; }
.stat-value { font-size: 28px; font-weight: 700; margin: 0; }
.stat-sub { color: var(--muted); font-size: 12px; margin: 4px 0 0; }

.mapping-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.mapping-table th, .mapping-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
}
.mapping-table th { color: var(--muted); font-weight: 500; }

/* ====== Footer ====== */
.footer {
  padding: 48px 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 64px;
}
.footer a { color: inherit; }

/* ====== Mobile ====== */
@media (max-width: 640px) {
  .hero { padding: 40px 20px 32px; }
  .lead { font-size: 28px; }
  .stat-value { font-size: 22px; }
}