/* ADApp REA Engine v1.0 | CSS-only presentation layer | prefix ad- */
@layer ad-reset, ad-tokens, ad-base, ad-layout, ad-components, ad-utilities;
@layer ad-reset {
  *,*::before,*::after{box-sizing:border-box}
  html{font-synthesis:none;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{margin:0}
  img,svg,video{max-width:100%;height:auto}
  button,input,select,textarea{font:inherit}
  button{cursor:pointer}
  [hidden]{display:none!important}
}
@layer ad-tokens {
  :root,[data-ad-theme="light"]{
    color-scheme:light;
    --ad-ink:#1b1b1a;--ad-stone:#786f66;--ad-paper:#f2f0ee;--ad-cloud:#e2dfdc;
    --ad-muted:#8c8a88;--ad-sand:#c1b7ad;
    --ad-bg:#f2f0ee;--ad-surface:#fff;--ad-surface-alt:#f8f7f6;
    --ad-text:#1b1b1a;--ad-text-muted:#68625c;--ad-border:#d8d2cc;
    --ad-primary:#292725;--ad-primary-text:#fff;
    --ad-success:#276749;--ad-warning:#9b631d;--ad-danger:#a12f37;--ad-info:#325f84;
    --ad-radius-sm:6px;--ad-radius:11px;--ad-radius-lg:18px;
    --ad-shadow:0 12px 36px rgba(27,27,26,.09);
    --ad-focus:0 0 0 3px rgba(120,111,102,.28);
    --ad-speed:145ms;--ad-font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  [data-ad-theme="dark"]{
    color-scheme:dark;--ad-bg:#191817;--ad-surface:#242220;--ad-surface-alt:#2e2b28;
    --ad-text:#f2f0ee;--ad-text-muted:#c1b7ad;--ad-border:#4b4641;
    --ad-primary:#e2dfdc;--ad-primary-text:#1b1b1a;--ad-shadow:0 14px 36px rgba(0,0,0,.3);
    --ad-success:#80c9a4;--ad-warning:#eac087;--ad-danger:#ee9a9c;--ad-info:#9dc6e4;
  }
}
@layer ad-base {
  body{font-family:var(--ad-font);background:var(--ad-bg);color:var(--ad-text);line-height:1.5}
  a{color:inherit;text-underline-offset:3px}
  :focus-visible{outline:2px solid var(--ad-stone);outline-offset:2px}
  h1,h2,h3,p{margin-top:0}
  h1,h2,h3{line-height:1.2;letter-spacing:-.025em}
  small{font-size:.8rem}
}
@layer ad-layout {
  .ad-container{width:min(100% - 32px,1200px);margin-inline:auto}
  .ad-stack{display:flex;flex-direction:column;gap:16px}
  .ad-inline{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
  .ad-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
  .ad-col-4{grid-column:span 4}.ad-col-6{grid-column:span 6}.ad-col-8{grid-column:span 8}.ad-col-12{grid-column:span 12}
  .ad-shell{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100vh}
  .ad-sidebar{background:var(--ad-surface);border-right:1px solid var(--ad-border);padding:22px}
  .ad-main{min-width:0;padding:24px}
  .ad-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px;background:var(--ad-surface);border-bottom:1px solid var(--ad-border)}
  @media(max-width:800px){.ad-col-4,.ad-col-6,.ad-col-8{grid-column:span 12}.ad-shell{grid-template-columns:1fr}.ad-sidebar{border-right:0;border-bottom:1px solid var(--ad-border)}.ad-main{padding:16px}}
}
@layer ad-components {
  .ad-card,.ad-panel{display:block;background:var(--ad-surface);border:1px solid var(--ad-border);border-radius:var(--ad-radius-lg);padding:20px}
  .ad-panel__header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
  .ad-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:9px 16px;border:1px solid transparent;border-radius:var(--ad-radius-sm);background:var(--ad-primary);color:var(--ad-primary-text);font-weight:650;text-decoration:none;transition:background var(--ad-speed),transform var(--ad-speed),box-shadow var(--ad-speed);white-space:nowrap}
  .ad-btn:hover:not(:disabled){filter:brightness(1.13)}.ad-btn:active:not(:disabled){transform:translateY(1px)}
  .ad-btn:focus-visible{box-shadow:var(--ad-focus)}.ad-btn:disabled{opacity:.5;cursor:not-allowed}
  .ad-btn--secondary{background:var(--ad-surface-alt);color:var(--ad-text);border-color:var(--ad-border)}
  .ad-btn--ghost{background:transparent;color:var(--ad-text)}.ad-btn--danger{background:var(--ad-danger);color:#fff}
  .ad-btn--sm{min-height:32px;padding:5px 11px;font-size:.85rem}.ad-btn--lg{min-height:48px;padding:12px 20px}
  .ad-btn--block{width:100%}.ad-btn--icon{width:40px;padding:0}
  .ad-field{display:flex;flex-direction:column;gap:6px;min-width:0}
  .ad-label{display:block;font-size:.88rem;font-weight:650}
  .ad-input,.ad-select,.ad-textarea{display:block;width:100%;min-height:42px;padding:10px 12px;background:var(--ad-surface);color:var(--ad-text);border:1px solid var(--ad-border);border-radius:var(--ad-radius-sm);outline:none;transition:border-color var(--ad-speed),box-shadow var(--ad-speed)}
  .ad-textarea{min-height:105px;resize:vertical}
  .ad-input:focus,.ad-select:focus,.ad-textarea:focus{border-color:var(--ad-stone);box-shadow:var(--ad-focus)}
  .ad-input:disabled,.ad-select:disabled,.ad-textarea:disabled{opacity:.6;cursor:not-allowed;background:var(--ad-surface-alt)}
  .ad-input[aria-invalid="true"],.ad-select[aria-invalid="true"],.ad-textarea[aria-invalid="true"],.ad-field--error .ad-input{border-color:var(--ad-danger)}
  .ad-help{font-size:.8rem;color:var(--ad-text-muted)}.ad-error{font-size:.8rem;color:var(--ad-danger)}
  .ad-check,.ad-radio,.ad-switch{display:inline-flex;align-items:center;gap:9px;cursor:pointer}
  .ad-check input,.ad-radio input,.ad-switch input{accent-color:var(--ad-stone);width:17px;height:17px}
  .ad-switch input{width:32px;height:18px}
  .ad-badge{display:inline-flex;align-items:center;padding:3px 9px;border:1px solid var(--ad-border);background:var(--ad-surface-alt);border-radius:999px;font-size:.76rem;font-weight:650}
  .ad-badge--success{color:var(--ad-success)}.ad-badge--danger{color:var(--ad-danger)}.ad-badge--warning{color:var(--ad-warning)}
  .ad-alert{border:1px solid var(--ad-border);border-left:4px solid var(--ad-info);border-radius:var(--ad-radius-sm);background:var(--ad-surface);padding:12px 16px}
  .ad-alert--success{border-left-color:var(--ad-success)}.ad-alert--warning{border-left-color:var(--ad-warning)}.ad-alert--danger{border-left-color:var(--ad-danger)}
  .ad-table-wrap{overflow-x:auto;border:1px solid var(--ad-border);border-radius:var(--ad-radius)}
  .ad-table{width:100%;border-collapse:collapse;background:var(--ad-surface);text-align:left}
  .ad-table th,.ad-table td{padding:12px 14px;border-bottom:1px solid var(--ad-border);vertical-align:middle}
  .ad-table th{font-size:.82rem;color:var(--ad-text-muted);background:var(--ad-surface-alt)}
  .ad-table tr:last-child td{border-bottom:0}
  .ad-tabs{display:flex;gap:8px;border-bottom:1px solid var(--ad-border);overflow:auto}
  .ad-tab{display:inline-flex;padding:10px 14px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--ad-text-muted);white-space:nowrap}
  .ad-tab[aria-selected="true"],.ad-tab--active{border-bottom-color:var(--ad-primary);color:var(--ad-text);font-weight:650}
  .ad-breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;color:var(--ad-text-muted);font-size:.85rem}
  .ad-pagination{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
  .ad-progress{width:100%;height:9px;border:0;border-radius:99px;overflow:hidden;accent-color:var(--ad-stone)}
  .ad-progress::-webkit-progress-bar{background:var(--ad-cloud)}.ad-progress::-webkit-progress-value{background:var(--ad-stone)}
  .ad-spinner{display:inline-block;width:22px;height:22px;border:3px solid var(--ad-border);border-top-color:var(--ad-stone);border-radius:50%;animation:ad-spin .7s linear infinite}
  .ad-skeleton{min-height:16px;border-radius:var(--ad-radius-sm);background:linear-gradient(90deg,var(--ad-cloud),var(--ad-surface-alt),var(--ad-cloud));background-size:200% 100%;animation:ad-shimmer 1.3s linear infinite}
  .ad-modal{position:fixed;inset:0;margin:auto;width:min(94vw,560px);max-height:min(90vh,760px);overflow:auto;border:1px solid var(--ad-border);border-radius:var(--ad-radius-lg);padding:0;background:var(--ad-surface);color:var(--ad-text);box-shadow:var(--ad-shadow);opacity:0;transform:translateY(9px) scale(.985);transition:opacity var(--ad-speed),transform var(--ad-speed)}
  .ad-modal[open]{display:block}.ad-modal.ad-is-open{opacity:1;transform:translateY(0) scale(1)}
  .ad-modal::backdrop{background:rgba(18,17,16,.46);backdrop-filter:blur(2px)}
  .ad-modal__header,.ad-modal__footer{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px}
  .ad-modal__header{border-bottom:1px solid var(--ad-border)}.ad-modal__footer{border-top:1px solid var(--ad-border);justify-content:flex-end}
  .ad-modal__title{margin:0;font-size:1.15rem}.ad-modal__body{padding:20px}
  .ad-toast-region{position:fixed;right:16px;bottom:16px;z-index:2000;display:flex;flex-direction:column;gap:9px;width:min(360px,calc(100vw - 32px));pointer-events:none}
  .ad-toast{pointer-events:auto;padding:12px 16px;background:var(--ad-surface);color:var(--ad-text);border:1px solid var(--ad-border);border-left:4px solid var(--ad-info);border-radius:var(--ad-radius);box-shadow:var(--ad-shadow);animation:ad-arrive var(--ad-speed) ease-out}
  .ad-toast--success{border-left-color:var(--ad-success)}.ad-toast--danger{border-left-color:var(--ad-danger)}.ad-toast--warning{border-left-color:var(--ad-warning)}
  .ad-tooltip{position:relative}.ad-tooltip[data-ad-tip]:hover::after,.ad-tooltip[data-ad-tip]:focus-visible::after{content:attr(data-ad-tip);position:absolute;left:50%;bottom:calc(100% + 7px);transform:translateX(-50%);white-space:nowrap;max-width:250px;padding:5px 9px;border-radius:5px;background:var(--ad-ink);color:#fff;font-size:.75rem;z-index:20}
  .ad-menu{display:block;background:var(--ad-surface);border:1px solid var(--ad-border);border-radius:var(--ad-radius);box-shadow:var(--ad-shadow);padding:6px}
  .ad-menu__item{display:block;width:100%;padding:8px 10px;border:0;background:transparent;color:var(--ad-text);text-align:left;border-radius:5px;text-decoration:none}
  .ad-menu__item:hover{background:var(--ad-surface-alt)}
  @keyframes ad-spin{to{transform:rotate(360deg)}}
  @keyframes ad-shimmer{to{background-position-x:-200%}}
  @keyframes ad-arrive{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
}
@layer ad-utilities {
  .ad-text-muted{color:var(--ad-text-muted)}.ad-text-center{text-align:center}
  .ad-m-0{margin:0}.ad-mt-2{margin-top:8px}.ad-mt-4{margin-top:16px}
  .ad-mb-4{margin-bottom:16px}.ad-p-4{padding:16px}.ad-p-6{padding:24px}
  .ad-w-full{width:100%}.ad-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  @media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
}