/* ============================================================
   login.css — 登入頁自訂樣式（Bootstrap 5 擴充）
   ============================================================ */

html, body {
  height: 100%;
  font-family: 'Microsoft JhengHei', sans-serif;
}

/* ── 背景滿版 ── */
.login-bg {
  min-height: 100vh;
  background:
    url('../img/bg-login.jpg') center / cover no-repeat;
  background-color: #2a6fa8;   /* 圖片載入前的 fallback 顏色 */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ── 中央白色卡片 ── */
.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 44px 48px 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.22);
}

/* ── LOGO ── */
.logo-wrap {
  text-align: center;
  margin-bottom: 12px;
}
.logo-wrap img {
  height: 72px;
  width: auto;
  object-fit: contain;
}
/* 無圖片時顯示 emoji 佔位 */
.logo-wrap img.fallback-emoji {
  display: none;
}
.logo-emoji-fallback {
  font-size: 60px;
  line-height: 1;
  display: none;
}

/* ── 公司名稱 ── */
.company-name {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: #222;
  margin-bottom: 28px;
  letter-spacing: 2px;
}

/* ── 表單 label ── */
.login-card .form-label {
  font-size: 13.5px;
  color: #444;
  margin-bottom: 5px;
}

/* ── 輸入框 ── */
.login-card .form-control {
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: 'Microsoft JhengHei', sans-serif;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
  appearance: none;
}
.login-card .form-control:focus {
  border-color: #1976d2;
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.12);
  outline: none;
}

/* ── 底部列：版本號 + 登錄按鈕 ── */
.login-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
}
.version-text {
  font-size: 12px;
  color: #aaa;
}

/* ── 登錄按鈕 ── */
.btn-login {
  background: #1976d2;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 14px;
  font-family: 'Microsoft JhengHei', sans-serif;
  font-weight: 600;
  padding: 9px 28px;
  cursor: pointer;
  transition: background .2s, box-shadow .2s;
  -webkit-appearance: none;
  appearance: none;
  touch-action: manipulation;
  letter-spacing: 2px;
}
.btn-login:hover {
  background: #1565c0;
  box-shadow: 0 3px 10px rgba(25, 118, 210, 0.35);
}
.btn-login:active {
  transform: scale(0.97);
}

/* ============================================================
   RWD
   ============================================================ */
@media (max-width: 480px) {
  .login-card {
    padding: 32px 24px 24px;
    border-radius: 10px;
  }
  .logo-wrap img { height: 58px; }
  .company-name  { font-size: 20px; margin-bottom: 22px; }
  .version-text  { font-size: 11px; }
}

@media (max-width: 360px) {
  .login-card { padding: 28px 16px 20px; }
  .login-footer { flex-direction: column-reverse; gap: 12px; align-items: stretch; }
  .btn-login { width: 100%; text-align: center; }
  .version-text { text-align: center; }
}