/* ============================================================
 * KawadaSalon — 認証系ページ専用 CSS
 *   login / change-email / change-password / forgot-password / reset-password
 *
 * メインの kawadasalon.css と独立しており、ナビゲーション無しの
 * 中央配置カードレイアウトに最適化。フォレストグリーン基調。
 * 2026-05-22 v1.0
 * ============================================================ */

.ks-auth-body {
  margin: 0;
  background:
    radial-gradient(at 30% 0%, rgba(45,134,89,0.25), transparent 50%),
    radial-gradient(at 70% 100%, rgba(200,167,122,0.15), transparent 60%),
    linear-gradient(180deg, #0a2415 0%, #143b25 100%);
  min-height: 100vh;
  color: #1f2a23;
  font-family: "Hiragino Sans", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.ks-auth-wrap {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* ---------- ブランドロゴ ---------- */
.ks-auth-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: #fff;
}
.ks-auth-brand:hover { color: #fff; }
.ks-auth-brand__mark {
  width: 56px;
  height: 56px;
  border: 1.5px solid #c8a77a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Cormorant Garamond", "Hiragino Mincho ProN", serif;
  font-size: 26px;
  font-weight: 500;
  color: #c8a77a;
  background: rgba(255, 255, 255, 0.06);
  margin-bottom: 12px;
}
.ks-auth-brand__name {
  font-family: "Cormorant Garamond", serif;
  font-size: 24px;
  letter-spacing: 4px;
  font-weight: 500;
  color: #fff;
  line-height: 1;
}
.ks-auth-brand__tag {
  font-family: -apple-system, "Hiragino Sans", sans-serif;
  font-size: 9px;
  letter-spacing: 4px;
  color: rgba(200, 167, 122, 0.85);
  margin-top: 8px;
}

/* ---------- カード ---------- */
.ks-auth-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 32px 28px;
  width: 100%;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06),
    0 24px 60px rgba(0, 0, 0, 0.35);
  border-top: 3px solid #c8a77a;
}
.ks-auth-card__title {
  font-family: "Cormorant Garamond", "Hiragino Mincho ProN", serif;
  font-size: 22px;
  color: #143b25;
  margin: 0 0 4px;
  font-weight: 500;
  letter-spacing: 2px;
}
.ks-auth-card__lead {
  font-size: 11px;
  color: #98a89e;
  letter-spacing: 3px;
  margin: 0 0 22px;
  text-transform: uppercase;
}

/* ---------- エラー / フラッシュ ---------- */
.ks-auth-error {
  background: #fee2e2;
  color: #991b1b;
  border: 0.5px solid #fca5a5;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}
.ks-auth-error svg { flex-shrink: 0; margin-top: 1px; }

.ks-auth-info {
  background: #e8f5ee;
  color: #143b25;
  border: 0.5px solid #2d8659;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  line-height: 1.5;
}
.ks-auth-success {
  background: #d1fae5;
  color: #065f46;
  border: 0.5px solid #6ee7b7;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  line-height: 1.5;
}

/* ---------- フォーム ---------- */
.ks-auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ks-auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ks-auth-label {
  font-size: 12px;
  color: #4a5a51;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.ks-auth-input {
  background: #fff;
  border: 1px solid #d3e4d8;
  border-radius: 6px;
  padding: 11px 14px;
  font-size: 14px;
  color: #1f2a23;
  font-family: inherit;
  width: 100%;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.ks-auth-input::placeholder { color: #b7c4bc; }
.ks-auth-input:focus {
  border-color: #1a5d3a;
  box-shadow: 0 0 0 3px rgba(26, 93, 58, 0.15);
}
.ks-auth-input[disabled] {
  background: #f5f5f0;
  cursor: not-allowed;
}

/* チェックボックス (Remember Me 等) */
.ks-auth-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #4a5a51;
  cursor: pointer;
  margin: 4px 0;
  user-select: none;
}
.ks-auth-remember input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #1a5d3a;
  cursor: pointer;
}

/* ボタン */
.ks-auth-btn {
  background: #1a5d3a;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 2px;
  cursor: pointer;
  font-family: inherit;
  margin-top: 6px;
  transition: background .15s, transform .05s;
}
.ks-auth-btn:hover { background: #143b25; }
.ks-auth-btn:active { transform: scale(0.99); }
.ks-auth-btn[disabled] {
  background: #98a89e;
  cursor: not-allowed;
}

.ks-auth-btn-secondary {
  background: #ffffff;
  color: #143b25;
  border: 1px solid #d3e4d8;
}
.ks-auth-btn-secondary:hover {
  background: #f7faf8;
  border-color: #2d8659;
  color: #143b25;
}

/* ---------- 補助リンク ---------- */
.ks-auth-links {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  font-size: 12px;
  flex-wrap: wrap;
}
.ks-auth-links a {
  color: #1a5d3a;
  text-decoration: none;
  padding: 4px 0;
}
.ks-auth-links a:hover { color: #c8a77a; text-decoration: underline; }
.ks-auth-links__sep { color: #c0c8c3; }

/* ---------- フッター ---------- */
.ks-auth-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.ks-auth-footer a, .ks-auth-footer span {
  color: rgba(200, 167, 122, 0.7);
  font-size: 11px;
  text-decoration: none;
  letter-spacing: 1px;
}
.ks-auth-footer a:hover { color: #c8a77a; }
.ks-auth-footer__copy {
  color: rgba(255, 255, 255, 0.4);
  font-size: 10px;
  letter-spacing: 2px;
  margin-top: 4px;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 480px) {
  .ks-auth-body { padding: 16px 12px; }
  .ks-auth-card { padding: 24px 20px; border-radius: 10px; }
  .ks-auth-card__title { font-size: 20px; }
  .ks-auth-brand__name { font-size: 20px; letter-spacing: 3px; }
  .ks-auth-brand__mark { width: 48px; height: 48px; font-size: 22px; }
}