/* ============================================================================
 * assets/login.css — 登入頁專用樣式
 * 獨立於 assets/style.css，避免影響既有儀表板頁面。
 * ========================================================================== */

:root {
  --login-brand: #c8102e;
  --login-brand-dark: #a00d24;
  --login-btn: #eda8a8;
  --login-btn-hover: #e08585;
  --login-text-muted: #6b7280;
  --login-error: #dc2626;
}

html, body.login-page {
  height: 100%;
  margin: 0;
}

body.login-page {
  background-color: #f0f0f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  padding: 24px;
  box-sizing: border-box;
}

/* 右下角淡灰色斜向弧形裝飾（純 CSS/SVG，無外部圖片） */
.login-bg-decor {
  position: fixed;
  right: -18vw;
  bottom: -28vw;
  width: 85vw;
  height: 85vw;
  max-width: 1000px;
  max-height: 1000px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.9;
}

/* 登入卡片 */
.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 555px;
  background: #ffffff;
  border-radius: 6px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.10), 0 2px 8px rgba(15, 23, 42, 0.05);
  padding: 44px 56px 36px;
  box-sizing: border-box;
}

.login-logo-wrap {
  text-align: center;
  margin-bottom: 14px;
}

.login-logo-img {
  display: block;
  margin: 0 auto;
  height: 68px;
  width: auto;
  max-width: 100%;
  image-rendering: auto;
}

/* 子品牌文字列 */
.login-subbrands {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 14px;
  margin: 4px 0 26px;
  color: #374151;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.login-subbrands span:not(:last-child)::after {
  content: '';
}

.login-title {
  text-align: center;
  font-size: 40px;
  font-weight: 800;
  color: #111827;
  margin: 0 0 8px;
  line-height: 1.15;
}

.login-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--login-text-muted);
  margin: 0 0 28px;
}

.login-field {
  margin-bottom: 16px;
}

.login-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}

.login-input-wrap {
  position: relative;
}

.login-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  font-size: 15px;
  color: #111827;
  background: #fafafa;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.login-input:focus {
  border-color: var(--login-brand);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.12);
  background: #ffffff;
}

.login-input-wrap.has-toggle .login-input {
  padding-right: 44px;
}

.login-toggle-pass {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 8px;
  color: #6b7280;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-toggle-pass:hover { color: #374151; }
.login-toggle-pass:focus-visible { outline: 2px solid var(--login-brand); outline-offset: 1px; border-radius: 4px; }

.login-submit-btn {
  width: 100%;
  margin-top: 8px;
  padding: 13px 16px;
  background: var(--login-btn);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color .15s ease, opacity .15s ease;
}
.login-submit-btn:hover:not(:disabled) { background: var(--login-btn-hover); }
.login-submit-btn:disabled { opacity: 0.7; cursor: wait; }
.login-submit-btn:focus-visible { outline: 2px solid var(--login-brand-dark); outline-offset: 2px; }

.login-error {
  display: none;
  margin: 14px 0 0;
  padding: 10px 12px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 4px;
  color: var(--login-error);
  font-size: 13px;
  line-height: 1.5;
}
.login-error.show { display: block; }

.login-footer {
  margin-top: 30px;
  text-align: center;
}

.login-footer-globe {
  color: #6b7280;
  margin-bottom: 8px;
}

.login-footer-links {
  font-size: 12px;
}
.login-footer-links a {
  color: var(--login-brand);
  text-decoration: none;
}
.login-footer-links a:hover { text-decoration: underline; }
.login-footer-links .sep {
  color: #d1d5db;
  margin: 0 8px;
}

/* RWD：手機版滿版卡片、縮小字級與留白 */
@media (max-width: 480px) {
  body.login-page {
    padding: 0;
    align-items: flex-start;
  }
  .login-bg-decor {
    right: -30vw;
    bottom: -22vw;
    width: 120vw;
    height: 120vw;
  }
  .login-card {
    max-width: 100%;
    min-height: 100vh;
    border-radius: 0;
    box-shadow: none;
    padding: 32px 16px 28px;
  }
  .login-title { font-size: 30px; }
  .login-subtitle { font-size: 13px; margin-bottom: 22px; }
  .login-subbrands { font-size: 10px; gap: 5px 10px; }
  .login-logo-img { height: 54px; }
}