/* =====================================================
   shared-auth.css — ログイン・設定系ページ共通スタイル
   ===================================================== */
:root {
  --bg:     #fffdf7;
  --yellow: #fbbf24;
  --orange: #f97316;
  --green:  #22c55e;
  --red:    #ef4444;
  --blue:   #3b82f6;
  --text:   #1c1917;
  --muted:  #78716c;
  --card:   #ffffff;
  --border: #e7e5e4;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── カード ── */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

/* ── フォーム ── */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: border-color .15s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--orange); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 5px;
}
.form-error {
  font-size: 12px;
  color: var(--red);
  margin-top: 5px;
  display: none;
}
.form-error.show { display: block; }

/* ── ボタン ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 15px; font-weight: 800;
  padding: 13px 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: .18s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary {
  background: var(--orange); color: #fff;
  box-shadow: 0 4px 16px rgba(249,115,22,.3);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(249,115,22,.4); }
.btn-secondary {
  background: #fff; color: var(--text);
  border: 2px solid var(--border);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--orange); color: var(--orange); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #dc2626; }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-full { width: 100%; }

/* ── トースト ── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px; font-weight: 700;
  z-index: 9999;
  opacity: 0;
  transition: .3s ease;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-success { background: var(--text); color: #fff; }
.toast-error   { background: var(--red); color: #fff; }

/* ── ローダー ── */
.loader {
  width: 20px; height: 20px;
  border: 3px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}
.loading .loader { display: block; }
.loading .btn-label { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── バッジ ── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px; font-weight: 800;
}
.badge-active  { background: #dcfce7; color: #166534; }
.badge-trial   { background: #fef9c3; color: #854d0e; }
.badge-canceled{ background: #fee2e2; color: #991b1b; }
.badge-admin   { background: #ede9fe; color: #5b21b6; }

/* ── ナビ ── */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  height: 64px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.nav-logo {
  font-family: 'Nunito', sans-serif;
  font-weight: 900; font-size: 22px;
  color: var(--orange);
  text-decoration: none;
}
.nav-logo span { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* ── タブ ── */
.tabs {
  display: flex; gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 28px;
}
.tab {
  padding: 10px 20px;
  font: inherit; font-size: 14px; font-weight: 700;
  border: none; background: transparent;
  cursor: pointer; color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: .15s;
}
.tab.active { color: var(--orange); border-bottom-color: var(--orange); }

/* ── セクションタイトル ── */
.section-title {
  font-size: 18px; font-weight: 900; margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}

/* ── テーブル ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; padding: 10px 14px;
  background: #f5f5f4;
  font-size: 11px; font-weight: 800; text-transform: uppercase;
  color: var(--muted); letter-spacing: .5px;
}
th:first-child { border-radius: 8px 0 0 8px; }
th:last-child  { border-radius: 0 8px 8px 0; }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafaf9; }

/* ── モーダル ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
  opacity: 0; pointer-events: none; transition: .2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: #fff; border-radius: 20px;
  padding: 32px; max-width: 480px; width: 100%;
  transform: scale(.96); transition: .2s;
  max-height: 90vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.modal-title { font-size: 18px; font-weight: 900; }
.modal-close {
  background: none; border: none; cursor: pointer;
  font-size: 20px; color: var(--muted); padding: 4px;
}

/* ── 空状態 ── */
.empty-state {
  text-align: center; padding: 60px 20px;
  color: var(--muted);
}
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 15px; }

/* ── レスポンシブ ── */
@media (max-width: 640px) {
  .card { padding: 20px; }
  .btn  { padding: 12px 20px; }
}