* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- flash messages ---------- */
.flash-stack {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(380px, calc(100vw - 32px));
}
.flash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.4;
  box-shadow: var(--shadow-soft);
  animation: flash-in 180ms ease;
}
@keyframes flash-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
.flash--success { background: var(--color-success-soft); color: #1E7A38; border: 1px solid #A9DDB8; }
.flash--error   { background: var(--color-error-soft);   color: #C0271B; border: 1px solid #F3B3AB; }
.flash--warning { background: var(--color-warning-soft); color: #8A6100; border: 1px solid #F0D48A; }
.flash__close { background: none; border: none; font-size: 16px; line-height: 1; color: inherit; opacity: 0.6; }
.flash__close:hover { opacity: 1; }

/* ---------- form controls ---------- */
.field { margin-bottom: 20px; }
.field__label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-ink);
}
.field__input-wrap { position: relative; }
.field__input,
.select-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #BFBFBF;
  background: var(--color-input-bg);
  font-size: 15px;
  font-family: var(--font-body);
  color: var(--color-ink);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
textarea.field__input { min-height: 110px; resize: vertical; font-family: var(--font-mono); font-size: 13px; }
.field__input:focus, .select-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(44,123,237, 0.18), inset 0 1px 2px rgba(0, 0, 0, 0.08);
}
.field__input::placeholder { color: var(--color-ink-faint); }
.field__toggle-visibility {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 6px;
  color: var(--color-ink-muted);
  display: flex;
}
.field__toggle-visibility:hover { color: var(--color-ink); }
.field__error { color: var(--color-error); font-size: 13px; margin-top: 6px; }
.field__hint { color: var(--color-ink-muted); font-size: 12.5px; margin-top: 6px; }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-ink-muted);
}
.checkbox-row input { width: 16px; height: 16px; accent-color: var(--color-accent); }

.error-list {
  background: var(--color-error-soft);
  border: 1px solid #F3B3AB;
  color: var(--color-error);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 18px;
  font-size: 13.5px;
}
.error-list ul { margin: 0; padding-left: 18px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-body);
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
}
.btn:active { position: relative; top: 1px; }
.btn--primary {
  background: #1F66D6;
  border-color: #1F66D6;
  border-bottom: 3px solid #174EA6;
  color: var(--color-accent-ink);
  text-shadow: rgba(0, 0, 0, 0.12) 0 -1px 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 4px 12px -4px rgba(44,123,237, 0.55);
}
.btn--primary:hover { filter: brightness(1.1); }
.btn--primary:active {
  background: #1F66D6;
  border-bottom-width: 1px;
  margin-top: 2px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}
.btn--outline {
  background: var(--color-card);
  border-color: var(--color-border);
  color: var(--color-ink);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.btn--outline:hover { border-color: var(--color-ink-faint); }
.btn--social {
  background: #F9F9F9;
  border-color: var(--color-border);
  color: var(--color-ink);
  font-weight: 500;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.btn--social:hover { background: #FFF3C2; border-color: #FCC420; }
.btn--danger { background: var(--color-error-soft); color: var(--color-error); border-color: #F3B3AB; border-bottom: 3px solid #F3B3AB; }
.btn--sm { width: auto; padding: 7px 14px; font-size: 13px; }
.btn--ghost { background: transparent; border-color: transparent; color: var(--color-ink-muted); }
.btn--ghost:hover { color: var(--color-ink); }
.btn--text { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; font-size: 13px; font-weight: 600; color: var(--color-accent, #2C7BED); background: transparent; border: none; border-radius: 6px; cursor: pointer; text-decoration: none; transition: background 0.15s, color 0.15s; }
.btn--text:hover { background: #e8f0fe; }
.btn--text--danger { color: var(--color-error, #E43E30); }
.btn--text--danger:hover { background: #fef2f2; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- misc utility ---------- */
.text-muted { color: var(--color-ink-muted); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
}
.badge--live { background: var(--color-success-soft); color: #1E7A38; }
.badge--off { background: #F1EDE4; color: var(--color-ink-muted); }
.badge--warn { background: var(--color-warning-soft); color: #8A6100; }

/* ---------- language switcher ---------- */
.lang-switcher__control {
  display: flex;
  width: 100%;
  box-sizing: border-box;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-ink-muted);
  font-size: 13px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.lang-switcher__control .lang-switcher__chevron { margin-left: auto; flex-shrink: 0; }
.lang-switcher__control .lang-switcher__name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lang-switcher__select {
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-ink);
  cursor: pointer;
}
.lang-switcher__select:focus { outline: none; }

/* ---------- flag icons (SVG, offline-safe) ---------- */
.flag-icon {
  display: inline-block;
  border-radius: 50%;
  object-fit: cover;
  /* 預設聚焦左上角：多數國旗識別特徵（美/中星星等）在左上 */
  object-position: left top;
  flex-shrink: 0;
  vertical-align: -3px;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.12);
  background: #e2e8f0;
}
/* 中央徽記類：聚焦中央（日之丸、太極、越南星） */
.flag-jp, .flag-kr, .flag-vn { object-position: center; }
/* 左側徽記：聚焦左中（菲律賓三角、西國國徽） */
.flag-ph, .flag-es { object-position: left center; }
/* 葡國渾天儀在中線偏左 */
.flag-pt { object-position: 40% 50%; }
.flag-emoji { font-style: normal; }

/* ---------- language dropdown (details-based, no JS needed) ---------- */
.lang-details { position: relative; }
.lang-details > summary { list-style: none; }
.lang-details > summary::-webkit-details-marker { display: none; }
.lang-switcher__name { color: var(--color-ink); white-space: nowrap; }
.lang-switcher__chevron { font-size: 10px; color: var(--color-ink-muted); }
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 190px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 6px;
  z-index: 200;
  /* 全站統一：淺灰細捲軸 */
  scrollbar-width: thin;
  scrollbar-color: #C9CDD4 transparent;
}
.lang-menu::-webkit-scrollbar { width: 8px; }
.lang-menu::-webkit-scrollbar-track { background: transparent; border-radius: 4px; }
.lang-menu::-webkit-scrollbar-thumb { background: #C9CDD4; border-radius: 4px; }
.lang-menu::-webkit-scrollbar-thumb:hover { background: #9AA1AB; }
.lang-menu__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-ink);
  font-size: 13.5px;
}
.lang-menu__item:hover { background: var(--color-accent-soft); }
.lang-menu__item.is-active { background: var(--color-accent-soft); font-weight: 700; }
.lang-menu__item.is-active .flag-icon { box-shadow: 0 0 0 2px var(--color-accent); }
.lang-switcher__control { transition: border-color var(--transition-fast, 0.15s); }
.lang-switcher__control:hover { border-color: var(--color-accent); }
.lang-switcher__chevron { display: inline-block; transition: transform 0.15s ease; }
.lang-details[open] .lang-switcher__chevron { transform: rotate(180deg); }
.lang-menu { animation: lang-menu-in 0.14s ease-out; transform-origin: top right; }
.lang-menu--up { transform-origin: bottom right; }
@keyframes lang-menu-in {
  from { opacity: 0; transform: translateY(-4px) scale(0.98); }
}
.lang-menu__item svg:last-child { margin-left: auto; color: var(--color-accent); }
.lang-menu__name { flex: 1; white-space: nowrap; }
.lang-menu__code {
  font-size: 11px;
  color: var(--color-ink-muted);
  background: var(--color-ink-soft, #f1f5f9);
  border-radius: 6px;
  padding: 1px 6px;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

/* ============================================================
   App UI layer（會員端共用：分頁、表格、卡片）
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 18px 0 4px;
  flex-wrap: wrap;
}
.pagination a,
.pagination span {
  font-size: 13px;
  color: var(--color-ink-2, #334155);
  text-decoration: none;
}
.pagination a:not(.disabled) {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--color-border, #e2e8f0);
  background: var(--color-card, #fff);
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.pagination a:not(.disabled):hover { background: #f1f5f9; border-color: #cbd5e1; transform: translateY(-1px); }
.pagination a.disabled,
.pagination span.disabled {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px dashed var(--color-border, #e2e8f0);
  opacity: .55;
  pointer-events: none;
}
.pagination .gap { color: var(--color-ink-muted, #64748b); }

.tbl-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tbl-wrap table { min-width: 560px; }

@media (max-width: 640px) {
  .pagination a, .pagination span { font-size: 12.5px; }
}

/* ============================================================
   檔案上傳按鈕（客製化，全域共用）
   ============================================================ */
.up-field { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.up-field input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; clip: rect(0 0 0 0); }
.up-field__btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 0 14px; height: 38px;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 9px;
  background: var(--color-card, #fff);
  color: var(--color-ink-2, #334155);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.up-field__btn:hover { background: #f1f5f9; border-color: #cbd5e1; transform: translateY(-1px); }
.up-field__btn:active { transform: translateY(0); }
.up-field__name {
  font-size: 12.5px; color: var(--color-ink-muted, #64748b);
  max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.up-field__preview { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; border: 1px solid var(--color-border, #e2e8f0); background: #f8fafc; }
.up-field__tip { flex-basis: 100%; font-size: 11.5px; color: #94a3b8; line-height: 1.5; }

/* ============================================================
   全域客製化對話框（取代瀏覽器 alert / confirm / prompt）
   ============================================================ */
.app-dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.68);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: app-dialog-fade 180ms ease;
}
@keyframes app-dialog-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.app-dialog-backdrop[hidden] { display: none !important; }
.app-dialog {
  background: var(--color-card, #fff);
  color: var(--color-ink, #0f172a);
  border-radius: 24px;
  border-top: 6px solid #2C7BED;
  border-bottom: 6px solid #FCC420;
  box-shadow: 0 28px 80px rgba(2, 6, 23, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);
  width: min(460px, 100%);
  padding: 26px 26px 20px;
  text-align: center;
  animation: app-dialog-in 220ms cubic-bezier(0.21, 1.02, 0.73, 1);
}
.app-dialog--danger { border-top-color: #E43E30; }
@keyframes app-dialog-in {
  from { transform: translateY(16px) scale(0.92); opacity: 0; }
  to { transform: none; opacity: 1; }
}
.app-dialog__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 2px auto 14px;
}
.app-dialog__icon[hidden] { display: none; }
.app-dialog__icon svg { width: 32px; height: 32px; }
.app-dialog__icon--danger {
  background: rgba(228, 62, 48, 0.12);
  color: #E43E30;
  box-shadow: 0 0 0 8px rgba(228, 62, 48, 0.07);
  animation: app-dialog-pulse 1.6s ease-in-out infinite;
}
@keyframes app-dialog-pulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(228, 62, 48, 0.08); }
  50% { box-shadow: 0 0 0 12px rgba(228, 62, 48, 0.03); }
}
.app-dialog__icon--info {
  background: rgba(44,123,237, 0.12);
  color: #1F66D6;
  box-shadow: 0 0 0 8px rgba(44,123,237, 0.07);
}
.app-dialog__title { margin: 0 0 8px; font-size: 20px; font-weight: 800; letter-spacing: 0.01em; }
.app-dialog__title[hidden] { display: none; }
.app-dialog__desc { margin: 0 0 6px; font-size: 14.5px; line-height: 1.7; color: var(--color-ink-2, #334155); white-space: pre-line; }
.app-dialog__input-wrap { margin: 10px 0 4px; }
.app-dialog__input-wrap[hidden] { display: none; }
.app-dialog__input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--color-border, #d1d5db);
  border-radius: 9px;
  background: var(--color-input-bg, #fff);
  color: inherit;
}
.app-dialog__input:focus { outline: 2px solid #93c5fd; border-color: #60a5fa; }
.app-dialog__actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.app-dialog__btn {
  appearance: none;
  border-radius: 11px;
  padding: 11px 28px;
  min-width: 108px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.app-dialog__btn:active { transform: translateY(1px); }
.app-dialog__btn--cancel { background: #f1f5f9; border-color: #e2e8f0; color: var(--color-ink-2, #334155); }
.app-dialog__btn--cancel:hover { background: #e2e8f0; }
.app-dialog__btn--ok { background: #1F66D6; border-color: #1F66D6; border-bottom: 3px solid #174EA6; color: #fff; box-shadow: 0 8px 20px rgba(44,123,237, 0.35); }
.app-dialog__btn--ok:hover { filter: brightness(1.08); box-shadow: 0 10px 24px rgba(44,123,237, 0.45); }
.app-dialog__btn--danger { background: #C0271B; border-color: #C0271B; border-bottom: 3px solid #8E1B12; color: #fff; box-shadow: 0 8px 20px rgba(228, 62, 48, 0.35); }
.app-dialog__btn--danger:hover { filter: brightness(1.08); box-shadow: 0 10px 24px rgba(228, 62, 48, 0.45); }
.app-dialog__btn:focus-visible { outline: 2px solid #93c5fd; outline-offset: 2px; }
@media (max-width: 480px) {
  .app-dialog { padding: 22px 18px 16px; }
  .app-dialog__actions .app-dialog__btn { flex: 1 1 auto; }
}