:root {
  --color-b-in: #2e7d32;   /* Green */
  --color-b-ex: #c62828;   /* Red */
  --color-p-in: #1565c0;   /* Blue */
  --color-p-ex: #ef6c00;   /* Orange */
  --color-yellow: #f9a825;
  --color-grey: #757575;
  --bg: #f5f6f8;
  --text: #1c1c1e;
  --card-bg: #ffffff;
  --border: #e0e0e0;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans SC",
    "Noto Sans JP", "Noto Sans KR", "Noto Sans Arabic", "Noto Sans Thai",
    "Noto Sans Devanagari", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* Floating top bars — không trôi khi cuộn */
.topbar, .subbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
}
.subbar { top: 52px; font-size: 0.9rem; gap: 8px; }
.subbar.justify-center { justify-content: center; }
.subbar.center { justify-content: center; position: static; border: none; background: transparent; }

.topbar-left { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 1.1rem; }
.icon { font-size: 1.3rem; }

.lang-select {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.link { color: var(--color-p-in); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
}

.frame {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.disclaimer-frame { border-left: 4px solid var(--color-yellow); }
.disclaimer-title { font-weight: 700; margin: 0 0 4px; }
.disclaimer-subtitle { font-weight: 600; margin: 0 0 8px; }
.disclaimer-body { font-size: 0.85rem; color: #444; line-height: 1.4; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  font-size: 0.85rem;
}
.checkbox-row input { margin-top: 3px; }

.login-frame label { display: block; margin: 10px 0 4px; font-size: 0.9rem; font-weight: 600; }
.login-frame input, fieldset input, .modal input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

.field-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
}
.field-row label {
  flex: 0 0 130px;
  font-size: 0.9rem;
  font-weight: 600;
}
.field-row input {
  flex: 1 1 auto;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  min-width: 0;
}
@media (max-width: 480px) {
  .field-row { flex-wrap: wrap; }
  .field-row label { flex: 1 1 100%; }
  .field-row input { flex: 1 1 100%; }
}

.floating-label { margin: 0 0 8px; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.btn {
  flex: 1 1 auto;
  padding: 12px 16px;
  border-radius: 8px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}
.btn-primary { background: var(--color-p-in); color: #fff; }
.btn-primary:disabled { background: #b0bec5; cursor: not-allowed; }
.btn-secondary { background: #eceff1; color: var(--text); }

.btn-link {
  background: none;
  border: none;
  color: var(--color-p-in);
  font-size: 0.9rem;
  margin-top: 12px;
  cursor: pointer;
  padding: 0;
}

.error-text { color: var(--color-b-ex); font-size: 0.85rem; margin-top: 8px; }
.success-text { color: var(--color-b-in); font-size: 0.85rem; margin-top: 8px; }
.hint-text { font-size: 0.8rem; color: var(--color-grey); margin-top: 6px; }

.backup-list { display: flex; flex-direction: column; gap: 6px; max-height: 180px; overflow-y: auto; }
.backup-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: #f5f5f5;
  border-radius: 6px;
  font-size: 0.82rem;
}
.backup-item .backup-actions { display: flex; gap: 6px; flex-shrink: 0; }
.backup-item button { font-size: 0.75rem; padding: 4px 8px; border-radius: 6px; border: 1px solid var(--border); background: #fff; cursor: pointer; }

.modal {
  border: none;
  border-radius: var(--radius);
  padding: 20px;
  max-width: 480px;
  width: 92vw;
}
.modal-large { max-width: 560px; }
.modal::backdrop { background: rgba(0,0,0,0.4); }

fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 12px;
}
legend { font-weight: 600; padding: 0 6px; }

.switch-row { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }

.password-field-wrapper { position: relative; }
.password-field-wrapper input[type="password"], .password-field-wrapper input[type="text"] { padding-right: 40px !important; }
.password-toggle-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 4px;
}

#cbToastContainer {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}
.cb-toast {
  background: #263238;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  max-width: 90vw;
  text-align: center;
}
.cb-toast-show { opacity: 1; transform: translateY(0); }
.cb-toast-success { background: #2e7d32; }
.cb-toast-error { background: #c62828; }

@media (min-width: 900px) {
  .container { max-width: 720px; padding: 32px 16px; }
  .frame { padding: 24px; }
}

/* ================= V.6 ================= */
/* Icon trên cùng bên trái → mở Einstellung */
.icon-settings-btn {
  background: none; border: none; padding: 2px 4px; margin: -2px 0;
  cursor: pointer; border-radius: 8px; line-height: 1;
  transition: background .15s, transform .15s;
}
.icon-settings-btn:hover { background: #eceff1; }
.icon-settings-btn:active { transform: scale(0.92); }

/* Bản sao lưu */
.btn-inline { flex: 0 0 auto; padding: 8px 14px; }
.inline-check, fieldset input.inline-check { width: auto !important; margin: 0; }
.backup-auto-box {
  margin-top: 14px; padding: 10px 12px; border-radius: 8px;
  background: #f5f8ff; border: 1px dashed #c5d3f0;
}
.backup-auto-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 8px; font-size: 0.88rem; }
.backup-auto-row select { padding: 7px 10px; border-radius: 8px; border: 1px solid var(--border); font-size: 0.9rem; }
.backup-list-title { display: flex; justify-content: space-between; align-items: baseline; margin-top: 14px; }
.backup-count { font-weight: 600; }
.backup-list { max-height: 260px; }
.backup-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.backup-name { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.76rem; word-break: break-all; }
.backup-meta { font-size: 0.72rem; color: var(--color-grey); display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.backup-badge { padding: 1px 7px; border-radius: 999px; font-size: 0.68rem; font-weight: 700; color: #fff; background: var(--color-grey); }
.backup-badge-manual { background: var(--color-p-in); }
.backup-badge-auto { background: var(--color-b-in); }
.backup-badge-pre-restore { background: var(--color-p-ex); }
.backup-badge-pre-delete { background: var(--color-b-ex); }
.backup-badge-legacy { background: #90a4ae; }

/* Hộp chọn tài khoản khi trùng thông tin đăng nhập */
.account-picker .ap-list { display: flex; flex-direction: column; gap: 8px; max-height: 55vh; overflow-y: auto; margin-top: 10px; }
.account-picker .ap-item {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px; text-align: start;
  padding: 10px 12px; border-radius: 10px; border: 2px solid var(--border); background: #fff;
  cursor: pointer; font: inherit; color: inherit; width: 100%;
}
.account-picker .ap-item:hover { border-color: #90caf9; }
.account-picker .ap-item.selected { border-color: var(--color-p-in); background: #e8f1fd; }
.account-picker .ap-row1 { display: flex; justify-content: space-between; align-items: center; width: 100%; gap: 8px; }
.account-picker .ap-id { font-weight: 700; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.account-picker .ap-name { font-weight: 600; }
.account-picker .ap-dates { font-size: 0.78rem; color: var(--color-grey); }
.account-picker .ap-last { font-size: 0.72rem; color: var(--color-p-in); font-weight: 600; }
.account-picker .ap-status { font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; color: #fff; background: var(--color-grey); white-space: nowrap; }
.account-picker .ap-active { background: var(--color-b-in); }
.account-picker .ap-soon { background: var(--color-yellow); color: #3e2c00; }
.account-picker .ap-disabled { background: var(--color-grey); }
.account-picker .ap-expired { background: var(--color-b-ex); }
.account-picker .ap-tip { margin-top: 10px; }