/* ==========================================================================
   UI KIT — un solo diseño para tienda y admin. Blancos profesionales + 1 color de acento
   personalizable (variables --accent* inyectadas desde Ajustes por theme_css()).
   ========================================================================== */
:root{
  --bg:#fff; --bg-soft:#f7f8fa; --bg-muted:#eff1f5; --card:#fff;
  --line:#e8ebf0; --line-strong:#d5dae3;
  --ink:#0f172a; --ink-2:#475569; --ink-3:#667085;
  --accent:#2563eb; --accent-600:#1d4fd8; --accent-700:#173fb0; --accent-100:#dbe6fd; --accent-50:#eef3fe; --accent-rgb:37,99,235; --on-accent:#fff; --accent-ink:#2563eb; --accent-ink-d:#173fb0;
  --success:#12a150; --success-50:#e7f7ee; --warning:#c97a00; --warning-50:#fff4dc; --danger:#dc2f2f; --danger-50:#fdecec; --info:#0b7fd6; --info-50:#e6f3fd;
  --radius:14px; --radius-sm:10px; --radius-lg:22px; --btn-radius:var(--radius-sm);
  --shadow-xs:0 1px 2px rgba(15,23,42,.05); --shadow-sm:0 2px 8px -2px rgba(15,23,42,.08); --shadow:0 10px 30px -12px rgba(15,23,42,.18); --shadow-lg:0 30px 70px -25px rgba(15,23,42,.35);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --ease:cubic-bezier(.2,.8,.2,1); --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:15px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4,h5{margin:0 0 .5em;line-height:1.2;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(1.8rem,3.4vw,2.6rem)} h2{font-size:clamp(1.35rem,2.2vw,1.75rem)} h3{font-size:1.15rem} h4{font-size:1rem}
p{margin:0 0 1em} a{color:inherit;text-decoration:none} img,svg{max-width:100%}
img{display:block} button{font:inherit;color:inherit} hr{border:0;border-top:1px solid var(--line);margin:1.25rem 0}
.i{flex:none;vertical-align:middle} .i-fill{fill:currentColor}
::selection{background:var(--accent-100)}
:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}
[hidden]{display:none!important}

/* layout helpers */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.stack>*+*{margin-top:var(--s,1rem)} .row{display:flex;align-items:center;gap:var(--g,.75rem)} .row.wrap{flex-wrap:wrap}
.between{justify-content:space-between} .center{justify-content:center} .end{justify-content:flex-end} .start{align-items:flex-start} .grow{flex:1;min-width:0}
.grid{display:grid;gap:var(--g,1rem)} .cols-2{grid-template-columns:repeat(2,1fr)} .cols-3{grid-template-columns:repeat(3,1fr)} .cols-4{grid-template-columns:repeat(4,1fr)}
.auto-grid{display:grid;gap:var(--g,1rem);grid-template-columns:repeat(auto-fill,minmax(var(--min,220px),1fr))}
.gap-1{--g:.25rem}.gap-2{--g:.5rem}.gap-3{--g:.75rem}.gap-4{--g:1rem}.gap-6{--g:1.5rem}.gap-8{--g:2rem}
.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mb-0{margin-bottom:0}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}
.muted{color:var(--ink-3)} .text-2{color:var(--ink-2)} .small{font-size:.86rem} .xs{font-size:.78rem} .bold{font-weight:700} .semibold{font-weight:600}
.right{text-align:right} .centered{text-align:center} .nowrap{white-space:nowrap} .truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.text-success{color:var(--success)} .text-danger{color:var(--danger)} .text-warning{color:var(--warning)} .text-accent{color:var(--accent-ink)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
@media(max-width:900px){.cols-4{grid-template-columns:repeat(2,1fr)}.cols-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}.hide-sm{display:none!important}}
@media(min-width:601px){.show-sm{display:none!important}}

/* buttons */
.btn{--bh:44px;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:var(--bh);padding:0 1.15rem;border:1px solid transparent;border-radius:var(--btn-radius);font-weight:600;font-size:.94rem;line-height:1;cursor:pointer;background:var(--bg-muted);color:var(--ink);transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s,border-color .18s,color .18s;white-space:nowrap;user-select:none}
.btn:hover{background:#e6e9ef} .btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent);color:var(--on-accent);box-shadow:0 6px 16px -6px rgba(var(--accent-rgb),.55)} .btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 10px 22px -8px rgba(var(--accent-rgb),.6)}
.btn-dark{background:var(--ink);color:#fff} .btn-dark:hover{background:#1e293b}
.btn-outline{background:transparent;border-color:var(--line-strong)} .btn-outline:hover{background:var(--bg-soft);border-color:var(--ink-3)}
.btn-ghost{background:transparent} .btn-ghost:hover{background:var(--bg-muted)}
.btn-soft{background:var(--accent-50);color:var(--accent-ink-d)} .btn-soft:hover{background:var(--accent-100)}
.btn-danger{background:var(--danger);color:#fff} .btn-danger:hover{background:#c02323}
.btn-success{background:var(--success);color:#fff} .btn-success:hover{background:#0e8a44}
.btn-sm{--bh:34px;padding:0 .8rem;font-size:.84rem} .btn-lg{--bh:52px;padding:0 1.6rem;font-size:1rem} .btn-block{width:100%} .btn-icon{padding:0;width:var(--bh)}
.btn[disabled],.btn.is-loading{opacity:.55;pointer-events:none}
.btn.is-loading::after{content:"";width:1em;height:1em;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* forms */
.field{display:flex;flex-direction:column;gap:.4rem} .field+.field,.field-row+.field,.field+.field-row{margin-top:1rem}
.field>label,.label{font-size:.84rem;font-weight:600;color:var(--ink-2)}
.input,.select,.textarea{width:100%;min-height:44px;padding:.65rem .9rem;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:#fff;font:inherit;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.textarea{min-height:96px;resize:vertical;line-height:1.5} .select{appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238590a2' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right .8rem center;padding-right:2.2rem}
.input:hover,.select:hover,.textarea:hover{border-color:var(--ink-3)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(var(--accent-rgb),.14)}
.input::placeholder,.textarea::placeholder{color:#a5aebd} .input-sm{min-height:36px;padding:.4rem .7rem;font-size:.88rem}
.input.is-invalid{border-color:var(--danger)} .help{font-size:.8rem;color:var(--ink-3)} .error{font-size:.8rem;color:var(--danger)}
.field-row{display:grid;grid-template-columns:repeat(var(--n,2),1fr);gap:1rem} .field-row.three{--n:3}
@media(max-width:600px){.field-row,.field-row.three{grid-template-columns:1fr}}
.input-group{display:flex} .input-group .input{border-radius:var(--radius-sm) 0 0 var(--radius-sm)} .input-group .btn{border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.input-affix{position:relative} .input-affix .i{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);color:var(--ink-3);pointer-events:none} .input-affix .input{padding-left:2.5rem}
.switch{position:relative;display:inline-flex;align-items:center;gap:.6rem;cursor:pointer;font-weight:500}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch .track{width:42px;height:24px;border-radius:99px;background:var(--line-strong);position:relative;transition:background .2s;flex:none}
.switch .track::after{content:"";position:absolute;left:3px;top:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:var(--shadow-xs);transition:transform .22s var(--ease)}
.switch input:checked+.track{background:var(--accent)} .switch input:checked+.track::after{transform:translateX(18px)} .switch input:focus-visible+.track{outline:2px solid var(--accent);outline-offset:2px}
.check{display:inline-flex;align-items:center;gap:.55rem;cursor:pointer} .check input{width:18px;height:18px;accent-color:var(--accent)}
input[type=color]{width:46px;height:44px;padding:3px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:#fff;cursor:pointer}
input[type=file].input{padding:.5rem}

/* cards / badges / alerts */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-xs)}
.card-pad{padding:1.25rem} .card-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;border-bottom:1px solid var(--line)} .card-head h3{margin:0;font-size:1rem}
.card-body{padding:1.25rem} .card-foot{padding:.9rem 1.25rem;border-top:1px solid var(--line);background:var(--bg-soft);border-radius:0 0 var(--radius) var(--radius)}
.card-hover{transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s} .card-hover:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.badge{display:inline-flex;align-items:center;gap:.3rem;padding:.2rem .6rem;border-radius:99px;font-size:.74rem;font-weight:700;line-height:1.4;background:var(--bg-muted);color:var(--ink-2);white-space:nowrap}
.badge-success{background:var(--success-50);color:var(--success)} .badge-warning{background:var(--warning-50);color:var(--warning)} .badge-danger{background:var(--danger-50);color:var(--danger)}
.badge-info{background:var(--info-50);color:var(--info)} .badge-accent{background:var(--accent-50);color:var(--accent-ink-d)} .badge-muted{background:var(--bg-muted);color:var(--ink-3)} .badge-dark{background:var(--ink);color:#fff}
.alert{display:flex;gap:.75rem;padding:.9rem 1rem;border-radius:var(--radius-sm);background:var(--info-50);color:#075a99;font-size:.92rem}
.alert-success{background:var(--success-50);color:#0b6b36} .alert-warning{background:var(--warning-50);color:#8a5200} .alert-danger{background:var(--danger-50);color:#a21f1f}
.avatar{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--accent-50);color:var(--accent-ink-d);font-weight:700;font-size:.85rem;flex:none;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.divider{height:1px;background:var(--line);margin:1rem 0}
.empty{text-align:center;padding:3rem 1rem;color:var(--ink-3)} .empty .i{width:48px;height:48px;opacity:.5;margin-bottom:.75rem} .empty h3{color:var(--ink);margin-bottom:.25rem}
.kbd{font:600 .72rem ui-monospace,monospace;padding:.1rem .4rem;border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:5px;background:#fff;color:var(--ink-2)}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.table{width:100%;border-collapse:collapse;font-size:.9rem}
.table th{padding:.75rem 1rem;text-align:left;font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3);font-weight:700;background:var(--bg-soft);border-bottom:1px solid var(--line);white-space:nowrap}
.table td{padding:.8rem 1rem;border-bottom:1px solid var(--line);vertical-align:middle} .table tr:last-child td{border-bottom:0}
.table tbody tr{transition:background .15s} .table tbody tr:hover{background:#fafbfc} .table .num,.table th.num{text-align:right;font-variant-numeric:tabular-nums}
.table .actions{text-align:right;white-space:nowrap}
.table-compact td,.table-compact th{padding:.5rem .75rem}

/* tabs / pagination */
.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--line);overflow-x:auto}
.tab{padding:.7rem 1rem;font-weight:600;color:var(--ink-3);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;white-space:nowrap;background:none;border-top:0;border-left:0;border-right:0;transition:color .15s}
.tab:hover{color:var(--ink)} .tab.on,.tab[aria-selected=true]{color:var(--accent-ink);border-bottom-color:var(--accent)}
.tab-panel{display:none;animation:fadeUp .35s var(--ease)} .tab-panel.on{display:block}
.pagination{display:flex;gap:.35rem;justify-content:center;margin:1.5rem 0;flex-wrap:wrap}
.pg{min-width:38px;height:38px;display:inline-grid;place-items:center;padding:0 .6rem;border:1px solid var(--line);border-radius:var(--radius-sm);font-weight:600;font-size:.88rem;background:#fff;transition:all .15s}
a.pg:hover{border-color:var(--accent);color:var(--accent-ink)} .pg.on{background:var(--accent);border-color:var(--accent);color:var(--on-accent)} .pg.gap{border:0;background:none}

/* modal / drawer / dropdown / toast */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(3px);z-index:90;opacity:0;pointer-events:none;transition:opacity .25s}
.overlay.on{opacity:1;pointer-events:auto}
.modal{position:fixed;left:50%;top:50%;z-index:100;width:min(560px,calc(100vw - 32px));max-height:calc(100vh - 48px);overflow:auto;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);transform:translate(-50%,-46%) scale(.97);opacity:0;pointer-events:none;transition:transform .3s var(--ease),opacity .25s}
.modal.on{transform:translate(-50%,-50%) scale(1);opacity:1;pointer-events:auto} .modal-lg{width:min(860px,calc(100vw - 32px))} .modal-sm{width:min(400px,calc(100vw - 32px))}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.4rem;border-bottom:1px solid var(--line)} .modal-head h3{margin:0}
.modal-body{padding:1.4rem} .modal-foot{display:flex;justify-content:flex-end;gap:.6rem;padding:1rem 1.4rem;border-top:1px solid var(--line);background:var(--bg-soft)}
.drawer{position:fixed;top:0;right:0;bottom:0;z-index:100;width:min(440px,100vw);background:#fff;box-shadow:var(--shadow-lg);transform:translateX(105%);transition:transform .38s var(--ease);display:flex;flex-direction:column}
.drawer.on{transform:none} .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.25rem;border-bottom:1px solid var(--line)} .drawer-head h3{margin:0}
.drawer-body{flex:1;overflow:auto;padding:1.1rem 1.25rem} .drawer-foot{padding:1.1rem 1.25rem;border-top:1px solid var(--line);background:var(--bg-soft)}
.dropdown{position:relative;display:inline-block} .dropdown-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:210px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:.4rem;z-index:60;opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity .18s,transform .2s var(--ease)}
.dropdown.on .dropdown-menu{opacity:1;transform:none;pointer-events:auto} .dropdown-menu a,.dropdown-menu button{display:flex;align-items:center;gap:.6rem;width:100%;padding:.55rem .7rem;border:0;background:none;border-radius:var(--radius-sm);font-size:.9rem;cursor:pointer;text-align:left} .dropdown-menu a:hover,.dropdown-menu button:hover{background:var(--bg-muted)}
.toasts{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;flex-direction:column;gap:.6rem;pointer-events:none}
.toast{pointer-events:auto;display:flex;align-items:flex-start;gap:.7rem;min-width:260px;max-width:min(380px,calc(100vw - 36px));padding:.85rem 1rem;background:var(--ink);color:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);animation:toastIn .4s var(--ease);font-size:.9rem}
.toast.success .i{color:#4ade80}.toast.error .i{color:#f87171}.toast.warning .i{color:#fbbf24}.toast.out{animation:toastOut .3s forwards}
@keyframes toastIn{from{opacity:0;transform:translateY(14px) scale(.96)}} @keyframes toastOut{to{opacity:0;transform:translateX(30px)}}

/* animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}} @keyframes scaleIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}} @keyframes pulseDot{0%{box-shadow:0 0 0 0 rgba(var(--accent-rgb),.5)}100%{box-shadow:0 0 0 12px rgba(var(--accent-rgb),0)}}
@keyframes shimmer{to{background-position:-200% 0}} @keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.35)}100%{transform:scale(1)}}
.anim-fade-up{animation:fadeUp .7s var(--ease) both} .anim-float{animation:float 5s ease-in-out infinite} .anim-pop{animation:pop .4s var(--ease)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)} .reveal.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.94);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:var(--d,0s)} .reveal-scale.in{opacity:1;transform:none}
.skeleton{background:linear-gradient(90deg,#eef0f4 25%,#f7f8fa 50%,#eef0f4 75%);background-size:200% 100%;animation:shimmer 1.3s infinite linear;border-radius:var(--radius-sm);color:transparent}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hscroll{scroll-behavior:auto!important}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.reveal,.reveal-scale{opacity:1;transform:none}}

/* pagina de error (layout bare) */
.err-page{min-height:100vh;display:grid;place-items:center;padding:2rem;background:radial-gradient(1200px 500px at 50% -10%,var(--accent-50),transparent)} .err-page.embedded{min-height:58vh} .err-card{text-align:center;max-width:640px;width:100%;min-width:0}
.err-code{font-size:clamp(5rem,16vw,9rem);font-weight:800;letter-spacing:-.06em;line-height:1;color:var(--accent-ink);opacity:.9}
.err-trace{text-align:left;background:var(--bg-soft);padding:1rem;border-radius:var(--radius-sm);overflow:auto;font-size:.75rem;max-height:240px;max-width:100%;white-space:pre-wrap;word-break:break-all}

/* print */
@media print{.no-print,.toasts,.overlay{display:none!important} body{background:#fff}}

/* pantallas tactiles: objetivos de toque minimos de 40 px */
@media(pointer:coarse){.btn-sm{--bh:40px}.btn-icon{min-width:40px}.chip{padding:.5rem .95rem}.pagination a,.pagination span,a.pg{min-width:40px;min-height:40px}}