@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html, body { margin: 0; height: 100%; }
  body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
  img, svg { display: block; max-width: 100%; }
  button, input, select, textarea { font: inherit; color: inherit; }
  h1, h2, h3, h4, p, ul, ol, dl, dd, figure, fieldset { margin: 0; }
  ul[role], ol[role], menu { list-style: none; padding: 0; margin: 0; }
  fieldset { border: 0; padding: 0; min-width: 0; }
  table { border-collapse: separate; border-spacing: 0; }
  [hidden] { display: none !important; }
}

@layer base {
  html { font-size: var(--erp-font-size); color-scheme: light; }
  body {
    font-family: var(--erp-font);
    font-size: 1rem;
    line-height: 1.45;
    color: var(--erp-text);
    background: var(--erp-bg);
    background-image: var(--erp-bg-image);
    background-attachment: fixed;
    background-size: cover;
  }
  a { color: var(--erp-primary); text-underline-offset: 2px; }
  a:hover { color: var(--erp-primary-hover); }
  :focus-visible { outline: none; box-shadow: var(--erp-focus-ring); border-radius: var(--erp-radius-sm); }
  /* Bề mặt mặc định của trình duyệt cũng theo theme: vùng chọn, con trỏ nhập, ô tích gốc, thanh cuộn */
  ::selection { background: var(--erp-primary-soft); color: var(--erp-text); }
  :root { accent-color: var(--erp-primary); scrollbar-color: color-mix(in srgb, var(--erp-text-faint) 45%, transparent) transparent; }
  input, textarea, [contenteditable] { caret-color: var(--erp-primary); }
  h1, h2, h3 { text-wrap: balance; }
  kbd {
    font-family: var(--erp-mono); font-size: var(--erp-fs-xs); padding: 1px 5px; border-radius: 4px;
    border: 1px solid var(--erp-border); background: var(--erp-surface-2); color: var(--erp-text-muted);
  }
  small { font-size: var(--erp-fs-sm); }
  .erp-icon { width: 18px; height: 18px; flex: none; }
  .erp-visually-hidden {
    position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  }
  .erp-muted { color: var(--erp-text-muted); }
  :root[data-motion="reduce"] *, :root[data-motion="reduce"] *::before, :root[data-motion="reduce"] *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important;
  }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  }
}

@layer components {
  /* ---------- Nút ---------- */
  .erp-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    min-height: var(--erp-ctl-h); padding: 0 14px; border-radius: var(--erp-radius);
    border: 1px solid var(--erp-border-strong); background: var(--erp-surface); color: var(--erp-text);
    font-weight: 500; cursor: pointer; white-space: nowrap; text-decoration: none;
    transition: background-color .15s, border-color .15s, box-shadow .15s, transform .05s;
  }
  .erp-btn:hover { background: var(--erp-surface-2); border-color: var(--erp-primary); color: var(--erp-text); }
  .erp-btn:active { transform: translateY(1px); }
  .erp-btn--primary { background: var(--erp-primary); border-color: var(--erp-primary); color: var(--erp-on-primary); }
  .erp-btn--primary:hover { background: var(--erp-primary-hover); border-color: var(--erp-primary-hover); color: var(--erp-on-primary); }
  .erp-btn--block { width: 100%; }
  .erp-btn--sm { min-height: 28px; padding: 0 10px; font-size: var(--erp-fs-sm); }
  .erp-btn[disabled], .erp-btn[data-pending] { opacity: .55; cursor: not-allowed; }
  .erp-iconbtn {
    display: inline-grid; place-items: center; width: 32px; height: 32px; border: 0; border-radius: var(--erp-radius);
    background: transparent; color: inherit; cursor: pointer; flex: none;
  }
  .erp-iconbtn:hover { background: color-mix(in srgb, currentColor 10%, transparent); }
  .erp-iconbtn[disabled] { opacity: .4; cursor: default; }

  /* ---------- Huy hiệu ---------- */
  .erp-badge {
    display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px; font-size: var(--erp-fs-xs); font-weight: 600;
    background: var(--erp-surface-3); color: var(--erp-text-muted); white-space: nowrap;
  }
  .erp-badge--warning { background: var(--erp-warning-soft); color: var(--erp-warning); }
  .erp-badge--mode-new { background: var(--erp-success-soft); color: var(--erp-success); }
  .erp-badge--mode-edit { background: var(--erp-warning-soft); color: var(--erp-warning); }
  .erp-badge--mode-view, .erp-badge--mode-find { background: var(--erp-primary-soft); color: var(--erp-primary); }
  .erp-count { display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 5px; margin-inline-start: 6px;
    border-radius: 999px; background: var(--erp-surface-3); color: var(--erp-text-muted); font-size: var(--erp-fs-xs); font-weight: 700; }

  /* Trạng thái (data[data-erp=status]) — tô theo data-tone do backend gửi */
  data[data-erp="status"] {
    display: inline-flex; align-items: center; gap: 6px; padding: 1px 9px 1px 7px; border-radius: 999px;
    font-size: var(--erp-fs-sm); font-weight: 600; line-height: 1.5; white-space: nowrap;
    background: var(--erp-surface-3); color: var(--erp-text-muted);
  }
  data[data-erp="status"]::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
  data[data-erp="status"][data-tone="success"] { background: var(--erp-success-soft); color: var(--erp-success); }
  data[data-erp="status"][data-tone="warning"] { background: var(--erp-warning-soft); color: var(--erp-warning); }
  data[data-erp="status"][data-tone="danger"] { background: var(--erp-danger-soft); color: var(--erp-danger); }
  data[data-erp="status"][data-tone="info"] { background: var(--erp-info-soft); color: var(--erp-info); }

  /* ---------- Bề mặt chung ---------- */
  .erp-surface {
    background: var(--erp-panel-bg); border: 1px solid var(--erp-border); border-radius: var(--erp-radius-lg);
    box-shadow: var(--erp-shadow); backdrop-filter: blur(var(--erp-blur)); -webkit-backdrop-filter: blur(var(--erp-blur));
  }

  /* ---------- Thông điệp ---------- */
  .erp-messages { display: grid; gap: 6px; }
  .erp-msg {
    display: flex; align-items: flex-start; gap: 10px; padding: 9px 10px 9px 12px; border-radius: var(--erp-radius);
    border: 1px solid transparent; background: var(--erp-info-soft); color: var(--erp-text); line-height: 1.4;
  }
  .erp-msg > span { flex: 1; padding-top: 1px; }
  .erp-msg > .erp-icon { color: var(--erp-info); margin-top: 1px; }
  .erp-msg .erp-iconbtn { width: 24px; height: 24px; margin: -2px -4px -2px 0; opacity: .6; }
  .erp-msg--success { background: var(--erp-success-soft); border-color: color-mix(in srgb, var(--erp-success) 25%, transparent); }
  .erp-msg--success > .erp-icon { color: var(--erp-success); }
  .erp-msg--warning { background: var(--erp-warning-soft); border-color: color-mix(in srgb, var(--erp-warning) 30%, transparent); }
  .erp-msg--warning > .erp-icon { color: var(--erp-warning); }
  .erp-msg--error { background: var(--erp-danger-soft); border-color: color-mix(in srgb, var(--erp-danger) 30%, transparent); }
  .erp-msg--error > .erp-icon { color: var(--erp-danger); }
  .erp-msglist { list-style: none; padding: 0; display: grid; gap: 8px; }

  /* ---------- Toast ---------- */
  .erp-toasts {
    position: fixed; z-index: 1000; inset-inline-end: 18px; inset-block-end: 44px; display: grid; gap: 10px; justify-items: end;
    width: min(380px, calc(100vw - 32px)); pointer-events: none;
  }
  .erp-toast {
    --tone: var(--erp-info);
    position: relative; width: 100%; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: start; gap: 12px;
    padding: 12px 8px 14px 12px; border-radius: var(--erp-radius-lg); overflow: hidden; pointer-events: auto;
    background: var(--erp-surface); color: var(--erp-text); border: 1px solid var(--erp-border);
    box-shadow: 0 12px 28px -8px rgba(15, 23, 42, .22), 0 2px 6px -1px rgba(15, 23, 42, .08);
    animation: erp-toast-in var(--erp-dur) var(--erp-ease-out);
  }
  .erp-toast--success { --tone: var(--erp-success); }
  .erp-toast--warning { --tone: var(--erp-warning); }
  .erp-toast--error { --tone: var(--erp-danger); }
  .erp-toast__icon {
    width: 32px; height: 32px; border-radius: var(--erp-radius); display: grid; place-items: center; flex: none;
    background: color-mix(in srgb, var(--tone) 13%, var(--erp-surface)); color: var(--tone);
  }
  .erp-toast__icon .erp-icon { width: 18px; height: 18px; }
  .erp-toast__body { display: grid; gap: 2px; min-width: 0; padding-top: 1px; }
  .erp-toast__title { font-size: var(--erp-fs-sm); font-weight: 600; line-height: 1.3; color: var(--erp-text); }
  .erp-toast__text { font-size: var(--erp-fs-sm); line-height: 1.45; color: var(--erp-text-muted); overflow-wrap: anywhere; text-wrap: pretty; }
  .erp-toast__close { width: 26px; height: 26px; margin-top: -2px; opacity: .55; }
  .erp-toast__close:hover { opacity: 1; }
  .erp-toast__close .erp-icon { width: 15px; height: 15px; }
  .erp-toast__bar {
    position: absolute; inset-inline: 0; bottom: 0; height: 3px; background: var(--tone); opacity: .7;
    transform-origin: left center; animation: erp-toast-bar linear forwards;
  }
  .erp-toast:hover .erp-toast__bar { animation-play-state: paused; }
  .erp-toast.is-bump { animation: erp-toast-bump var(--erp-dur) var(--erp-ease-out); }
  .erp-toast.is-leaving { opacity: 0; transform: translateX(12px); transition: opacity var(--erp-dur-fast) ease-in, transform var(--erp-dur-fast) ease-in; }
  @keyframes erp-toast-in { from { opacity: 0; transform: translateX(16px); } }
  @keyframes erp-toast-bar { to { transform: scaleX(0); } }
  @keyframes erp-toast-bump { from { background: color-mix(in srgb, var(--tone) 10%, var(--erp-surface)); } }

  /* ---------- Trạng thái rỗng / lỗi ---------- */
  .erp-empty { display: grid; justify-items: center; gap: 8px; padding: 40px 16px; color: var(--erp-text-muted); text-align: center; }
  .erp-empty .erp-icon { width: 36px; height: 36px; }
  .erp-empty--error .erp-icon { color: var(--erp-danger); }

  /* ---------- Menu bật lên ---------- */
  .erp-popmenu {
    position: fixed; z-index: 900; min-width: 220px; max-width: min(360px, calc(100vw - 16px)); max-height: 70vh; overflow: auto;
    padding: 6px; display: grid; gap: 1px; border-radius: var(--erp-radius-lg);
  }
  .erp-popmenu > button {
    display: flex; align-items: center; gap: 10px; padding: 7px 10px; border: 0; border-radius: var(--erp-radius);
    background: transparent; text-align: start; cursor: pointer;
  }
  .erp-popmenu > button:hover, .erp-popmenu > button:focus-visible { background: var(--erp-primary-soft); box-shadow: none; }
  .erp-popmenu > button[disabled] { opacity: .45; cursor: default; }
  .erp-popmenu > button.is-checked { color: var(--erp-primary); font-weight: 600; }
  .erp-popmenu__label { display: flex; align-items: center; gap: 10px; padding: 8px 10px; color: var(--erp-text-muted); font-weight: 600; }
}