:root {
    --c-bg:        #f4f6f8;
    --c-surface:   #ffffff;
    --c-text:      #1f2933;
    --c-muted:     #6b7280;
    --c-primary:   #b91c1c;
    --c-primary-h: #991414;
    --c-border:    #d8dee5;
    --c-error-bg:  #fde8e8;
    --c-error-tx:  #9b1c1c;
    --radius:      6px;
    --shadow-sm:   0 1px 2px rgba(0,0,0,.06);
    --shadow:      0 4px 12px rgba(0,0,0,.08);
    --font:        system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: var(--font); color: var(--c-text); background: var(--c-bg); }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--c-muted); }

/* ===== Topbar ===== */
.topbar {
    display: flex; align-items: center; gap: 16px; padding: 10px 20px;
    background: var(--c-surface); border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
}
.topbar-brand { font-weight: 700; font-size: 1.15rem; color: var(--c-primary); }
.topbar-nav   { flex: 1; display: flex; gap: 14px; }
.topbar-user  { display: flex; align-items: center; gap: 12px; font-size: .92rem; }
.topbar-user small { color: var(--c-muted); }
.topbar-nav a { color: var(--c-text); padding: 6px 10px; border-radius: var(--radius); }
.topbar-nav a:hover { background: var(--c-bg); text-decoration: none; }
.topbar-disabled { color: #aaa; padding: 6px 10px; cursor: not-allowed; font-style: italic; }
.btn-link { color: var(--c-primary); }

/* ===== Container ===== */
.container { max-width: 1100px; margin: 24px auto; padding: 0 20px; }

/* ===== Login ===== */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card {
    width: 100%; max-width: 360px; background: var(--c-surface);
    padding: 28px 26px; border-radius: var(--radius); box-shadow: var(--shadow);
    display: flex; flex-direction: column; gap: 14px;
}
.login-card h1 { margin: 0; font-size: 1.8rem; text-align: center; color: var(--c-primary); }
.login-sub    { margin: 0 0 8px; text-align: center; color: var(--c-muted); font-size: .9rem; }
.login-card label { display: flex; flex-direction: column; gap: 4px; font-size: .88rem; color: var(--c-muted); }
.login-card input {
    padding: 9px 10px; border: 1px solid var(--c-border); border-radius: var(--radius);
    font: inherit; color: var(--c-text);
}
.login-card input:focus {
    outline: none; border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(185, 28, 28, .15);
}

/* ===== Buttons ===== */
.btn-primary {
    background: var(--c-primary); color: #fff; border: 0;
    padding: 10px 14px; border-radius: var(--radius);
    font: inherit; font-weight: 600; cursor: pointer; transition: background .15s;
}
.btn-primary:hover { background: var(--c-primary-h); }
.btn-secondary {
    background: #e5e7eb; color: var(--c-text); border: 0;
    padding: 8px 14px; border-radius: var(--radius); font: inherit; cursor: pointer;
}
.btn-secondary:hover { background: #d1d5db; }
.btn-secondary:disabled { opacity: .5; cursor: not-allowed; }

/* ===== Alerts ===== */
.alert { padding: 9px 12px; border-radius: var(--radius); font-size: .9rem; }
.alert-error { background: var(--c-error-bg); color: var(--c-error-tx); border: 1px solid #f5b5b5; }
.alert-ok    { background: #e6f4ea; color: #1b5e20; border: 1px solid #b7dcc1; }

/* ===== Page header / filter bar ===== */
.page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; gap:12px; }
.page-header h1 { margin:0; font-size:1.5rem; }
.page-actions { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }

.filter-bar {
    display:flex; align-items:center; flex-wrap:wrap; gap:12px;
    margin-bottom:14px; padding:10px 14px;
    background:var(--c-surface); border:1px solid var(--c-border); border-radius:var(--radius);
}
.filter-bar input[type=search] {
    flex:1; max-width:340px; padding:7px 10px;
    border:1px solid var(--c-border); border-radius:var(--radius); font:inherit;
}
.checkbox { display:inline-flex !important; flex-direction:row !important; align-items:center; gap:6px; font-size:.9rem; cursor:pointer; }

/* ===== Table ===== */
.table {
    width:100%; border-collapse:collapse; background:var(--c-surface);
    border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-sm);
}
.table th, .table td { padding:9px 12px; text-align:left; border-bottom:1px solid var(--c-border); font-size:.92rem; }
.table th { background:#f8fafc; font-weight:600; color:var(--c-muted); font-size:.82rem; text-transform:uppercase; letter-spacing:.03em; }
.table tbody tr:hover { background:#f8fafc; }
.table .row-muted td { color:var(--c-muted); }
.table .num { text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap; }
.col-actions { white-space:nowrap; text-align:right; }
.tag { display:inline-block; padding:1px 6px; border-radius:3px; background:#e5e7eb; color:#374151; font-size:.72rem; margin-left:6px; }
.tag-warn { background:#fef3c7; color:#92400e; }

/* ===== Selects (estética unificada en todo el sistema) ===== */
select {
    appearance: none;
    -webkit-appearance: none;
    padding: 7px 30px 7px 10px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    background-color: #fff;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none'><path d='M1 1.5l5 5 5-5' stroke='%236b7280' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 10px 7px;
    font: inherit;
    color: var(--c-text);
    cursor: pointer;
    transition: border-color .15s, box-shadow .15s;
    min-height: 34px;
    line-height: 1.2;
}
select:hover { border-color: #9ca3af; }
select:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(185, 28, 28, .15);
}
select:disabled {
    background-color: #f3f4f6;
    color: var(--c-muted);
    cursor: not-allowed;
}

/* ===== Wrap horizontal para grillas anchas ===== */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    background: var(--c-surface);
}
.table-wrap .table { border-radius: 0; }

/* ===== Edición inline (celdas tipo Excel) ===== */
.cell-edit {
    cursor: pointer;
    transition: background .15s;
    position: relative;
}
.cell-edit:hover  { background: #fef9e7; }
.cell-edit:focus  { outline: 2px solid var(--c-primary); outline-offset: -2px; background: #fff8e1; }
.cell-edit.editing { background: #fff !important; padding: 2px 4px !important; }
.cell-edit.editing input {
    width: 100%; min-width: 60px;
    padding: 4px 6px; border: 0; outline: 2px solid var(--c-primary); outline-offset: -2px;
    font: inherit; font-variant-numeric: tabular-nums;
    background: #fff; color: var(--c-text);
    border-radius: 2px;
}
.cell-edit.num.editing input { text-align: right; }
.cell-edit.saving  { background: #dbeafe !important; color: var(--c-muted); font-style: italic; }
.cell-edit.saved   { background: #dcfce7 !important; }
.cell-edit.error   { background: #fee2e2 !important; }

/* ===== Form card ===== */
.form-card {
    max-width:640px; background:var(--c-surface); padding:20px 22px;
    border-radius:var(--radius); box-shadow:var(--shadow-sm);
    display:flex; flex-direction:column; gap:14px;
}
.form-card-wide { max-width:none; }
.form-card label { display:flex; flex-direction:column; gap:4px; font-size:.88rem; color:var(--c-muted); }
.form-card input[type=text], .form-card input[type=email], .form-card input[type=password], .form-card select {
    padding:8px 10px; border:1px solid var(--c-border); border-radius:var(--radius);
    font:inherit; color:var(--c-text); background:#fff;
}
.form-card input:focus, .form-card select:focus {
    outline:none; border-color:var(--c-primary);
    box-shadow:0 0 0 3px rgba(185,28,28,.15);
}
.form-row { display:grid; grid-template-columns:repeat(auto-fit, minmax(170px,1fr)); gap:12px; }
.form-card fieldset {
    border:1px solid var(--c-border); border-radius:var(--radius);
    padding:14px 16px 12px; margin:0; display:flex; flex-direction:column; gap:12px;
}
.form-card legend { padding:0 6px; color:var(--c-muted); font-size:.82rem; text-transform:uppercase; letter-spacing:.04em; }
.form-card .grow-2 { grid-column:span 2; }
.form-actions { display:flex; align-items:center; gap:12px; padding-top:6px; }
.checkbox-block { align-self:end; padding-bottom:8px; }
.req { color:var(--c-error-tx); }

/* ===== Dashboard cards ===== */
.dash-hero { margin:8px 0 22px; }
.dash-hero h1 { margin:0 0 4px; font-size:1.6rem; }
.dash-hero p { margin:0; color:var(--c-muted); }
.dash-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr)); gap:16px; }
.dash-card {
    display:flex; flex-direction:column; gap:8px; padding:20px 22px;
    background:var(--c-surface); border:1px solid var(--c-border); border-radius:var(--radius);
    box-shadow:var(--shadow-sm); color:var(--c-text); text-decoration:none;
    transition:transform .12s, box-shadow .12s, border-color .12s; min-height:130px;
}
.dash-card:hover { transform:translateY(-2px); box-shadow:var(--shadow); border-color:var(--c-primary); text-decoration:none; }
.dash-card h2 { margin:0; font-size:1.15rem; color:var(--c-primary); }
.dash-card p { margin:0; color:var(--c-muted); font-size:.9rem; flex:1; }
.dash-cta { font-size:.85rem; font-weight:600; color:var(--c-primary); margin-top:6px; }
.dash-card-off { opacity:.55; cursor:not-allowed; }
.dash-card-off:hover { transform:none; box-shadow:var(--shadow-sm); border-color:var(--c-border); }
.dash-card-off h2, .dash-card-off .dash-cta { color:var(--c-muted); }

/* ===== Messagebox (modal propio — reemplaza alert/confirm/prompt) ===== */
.mbx-overlay {
    position: fixed; inset: 0; background: rgba(15, 23, 42, .55);
    display: flex; align-items: center; justify-content: center; z-index: 1000;
    opacity: 0; pointer-events: none; transition: opacity .18s ease;
}
.mbx-overlay.open { opacity: 1; pointer-events: auto; }
.mbx-card {
    background: #fff; border-radius: 10px; box-shadow: 0 20px 50px rgba(0,0,0,.25);
    max-width: 440px; width: calc(100% - 32px);
    transform: translateY(8px) scale(.98); transition: transform .18s ease;
    overflow: hidden; border-top: 4px solid var(--c-primary);
}
.mbx-overlay.open .mbx-card { transform: none; }
.mbx-head { padding: 16px 20px 4px; }
.mbx-head h3 { margin: 0; font-size: 1.05rem; }
.mbx-body { padding: 8px 20px 16px; line-height: 1.45; }
.mbx-actions {
    display: flex; gap: 8px; justify-content: flex-end;
    padding: 12px 20px; border-top: 1px solid var(--c-border); background: #f9fafb;
}

/* ===== Mostrador (3 paneles) ===== */
.mostrador {
    display: grid;
    grid-template-columns: 260px 1fr 360px;
    gap: 12px;
    padding: 12px;
    height: calc(100vh - 56px);
    box-sizing: border-box;
}
.mst-left, .mst-right {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    display: flex; flex-direction: column;
    overflow: hidden;
}
.mst-center {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    display: flex; flex-direction: column;
    overflow: hidden;
}
.mst-section-title {
    font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
    color: var(--c-muted); padding: 12px 14px;
    border-bottom: 1px solid var(--c-border);
    display: flex; align-items: center; justify-content: space-between;
}
.mst-empty, .mst-results-empty, .mst-cart-empty {
    padding: 24px 16px; text-align: center; color: var(--c-muted);
    font-size: .9rem; line-height: 1.5;
}

/* --- Más buscados --- */
.mst-top-list { overflow-y: auto; padding: 8px; }
.mst-top-item {
    position: relative; padding: 10px; margin-bottom: 6px;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    cursor: pointer; transition: border-color .12s, background .12s;
}
.mst-top-item:hover { border-color: var(--c-primary); background: #fff8f8; }
.mst-top-name { font-size: .9rem; font-weight: 600; margin-bottom: 4px; line-height: 1.3; }
.mst-top-meta { display: flex; justify-content: space-between; align-items: center;
    font-size: .78rem; color: var(--c-muted); gap: 8px;
}
.mst-codigo { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
.mst-precio { font-weight: 600; color: var(--c-text); }
.mst-precio-group { display: inline-flex; align-items: center; gap: 8px; }

/* Botón inline "+" al lado del precio — variante actual */
.mst-add-btn {
    background: transparent; border: 1.5px solid var(--c-primary);
    color: var(--c-primary); font-weight: 800;
    font-size: 1rem; line-height: 1; cursor: pointer;
    width: 22px; height: 22px; padding: 0; border-radius: 4px;
    display: inline-flex; align-items: center; justify-content: center;
    transition: background .12s, color .12s;
}
.mst-add-btn:hover { background: var(--c-primary); color: #fff; }

/* --- BACKUP: variante anterior (círculo rojo absoluto). Por si volvemos.
.mst-top-item { padding: 10px 36px 10px 10px; }
.mst-add-btn {
    position: absolute; top: 50%; right: 8px; transform: translateY(-50%);
    background: var(--c-primary); color: #fff; border: 0; width: 26px; height: 26px;
    border-radius: 50%; cursor: pointer; font-size: 1.05rem; line-height: 1;
    display: inline-flex; align-items: center; justify-content: center;
}
.mst-add-btn:hover { background: var(--c-primary-h); }
--- */

/* --- Centro: buscador y resultados --- */
.mst-search-wrap { padding: 14px; border-bottom: 1px solid var(--c-border); }
.mst-search {
    width: 100%; padding: 12px 14px; font-size: 1.05rem;
    border: 2px solid var(--c-border); border-radius: var(--radius);
    background: #fff; outline: none; transition: border-color .12s;
    box-sizing: border-box;
}
.mst-search:focus { border-color: var(--c-primary); }
.mst-search-hint { margin-top: 8px; font-size: .78rem; color: var(--c-muted); }
.mst-search-hint span { cursor: not-allowed; opacity: .65; }

.mst-results { flex: 1; overflow-y: auto; padding: 8px; }
.mst-result {
    display: flex; gap: 12px; align-items: center;
    padding: 10px 12px; margin-bottom: 6px;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    background: #fff; cursor: pointer; outline: none;
    transition: border-color .12s, background .12s;
}
.mst-result:hover { background: #fafafa; }
.mst-result:focus { border-color: var(--c-primary); background: #fff8f8; }
.mst-result-main { flex: 1; min-width: 0; }
.mst-result-name { font-size: .98rem; font-weight: 600; margin-bottom: 4px; }
.mst-result-meta { display: flex; gap: 12px; font-size: .8rem; color: var(--c-muted); align-items: center; flex-wrap: wrap; }
.mst-codprov { font-family: ui-monospace, Consolas, monospace; opacity: .8; }
.mst-stock { font-size: .76rem; padding: 2px 7px; border-radius: 10px;
    background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.mst-stock-0 { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.mst-result-right { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.mst-result-precio { font-size: 1.05rem; font-weight: 700; color: var(--c-text); }
.mst-result .mst-add-btn {
    position: static; transform: none; width: auto; height: auto;
    padding: 6px 12px; border-radius: var(--radius); font-size: .85rem; font-weight: 600;
}

/* --- Derecho: carrito --- */
.mst-clear-btn {
    background: transparent; border: 1px solid var(--c-border); color: var(--c-muted);
    padding: 4px 10px; border-radius: var(--radius); cursor: pointer;
    font-size: .72rem; font-weight: 600; text-transform: none; letter-spacing: 0;
}
.mst-clear-btn:hover { color: var(--c-primary); border-color: var(--c-primary); }
.mst-cart { flex: 1; overflow-y: auto; padding: 8px; }
.mst-cart-item {
    padding: 10px; margin-bottom: 6px;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    background: #fff;
}
.mst-cart-line1 { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin-bottom: 4px; }
.mst-cart-name { font-size: .9rem; font-weight: 600; line-height: 1.3; }
.mst-cart-del { background: transparent; border: 0; color: var(--c-muted); cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 0 4px; }
.mst-cart-del:hover { color: var(--c-primary); }
.mst-cart-line2 { display: flex; justify-content: space-between; font-size: .76rem; color: var(--c-muted); margin-bottom: 8px; }
.mst-cart-line3 { display: flex; justify-content: space-between; align-items: center; }
.mst-cart-pu { font-family: ui-monospace, Consolas, monospace; }
.mst-cart-importe { font-weight: 700; font-size: .95rem; }
.mst-qty { display: inline-flex; align-items: center; border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; }
.mst-qty-btn { width: 26px; height: 28px; background: #fafafa; border: 0; cursor: pointer; font-size: 1rem; color: var(--c-muted); }
.mst-qty-btn:hover { background: var(--c-bg); color: var(--c-text); }
.mst-qty-val { width: 42px; height: 28px; text-align: center; border: 0;
    border-left: 1px solid var(--c-border); border-right: 1px solid var(--c-border);
    font-family: ui-monospace, Consolas, monospace; font-size: .9rem;
    outline: none; background: #fff;
}
.mst-qty-val:focus { background: #fff8e1; }
.mst-qty-val::-webkit-outer-spin-button,
.mst-qty-val::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.mst-totales { padding: 12px 14px; border-top: 1px solid var(--c-border); background: #fafafa; }
.mst-total-row { display: flex; justify-content: space-between; font-size: .88rem; color: var(--c-muted); margin-bottom: 4px; font-family: ui-monospace, Consolas, monospace; }
.mst-total-main { font-size: 1.15rem; color: var(--c-text); font-weight: 700; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--c-border); font-family: var(--font); }
.mst-total-main span:last-child { color: var(--c-primary); }
.mst-cart-actions { padding: 12px 14px; border-top: 1px solid var(--c-border); }
.mst-confirm { width: 100%; }

.mst-flash { animation: mst-flash-anim .4s ease; }
@keyframes mst-flash-anim {
    0%   { background: #fff8e1; }
    100% { background: transparent; }
}

@media (max-width: 980px) {
    .mostrador { grid-template-columns: 1fr; height: auto; }
}

.mst-confirm:disabled {
    background: #d1d5db; color: #6b7280; cursor: not-allowed; opacity: .7;
}
.mst-confirm:disabled:hover { background: #d1d5db; }

/* --- Sincronización con Fox (sync.php) --- */
.alert-info { background:#eff6ff; color:#1e3a8a; border:1px solid #bfdbfe; }
.alert-warn { background:#fffbeb; color:#78350f; border:1px solid #fde68a; }
.panel {
    background:#fff; border:1px solid var(--c-border); border-radius:var(--radius);
    padding:14px 16px;
}