/*
 * BILLING — lo que este producto agrega sobre la base de SmartDecisions.
 *
 * `base.css` trae la paleta, los botones, las tarjetas y la tipografía; acá
 * sólo va lo propio del mostrador. Ningún componente de la base se redefine:
 * si algo se ve distinto entre los dos productos, es un error, no un estilo.
 */

/* ---------------------------------------------------------------- Shell -- */

.app-shell {
    display: grid;
    grid-template-columns: 232px 1fr;
    min-height: 100vh;
}

.app-side {
    background: var(--panel);
    border-right: 1px solid var(--border);
    padding: 1.3rem 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0 0.4rem;
}

.app-brand img { width: 34px; height: 34px; border-radius: 9px; }

.app-brand h1 {
    margin: 0;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: var(--text-strong);
}

.app-brand small { color: var(--muted); font-size: 0.72rem; }

.app-nav { display: flex; flex-direction: column; gap: 0.15rem; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.6rem 0.7rem;
    border: 0;
    border-radius: var(--radius-sm);
    background: none;
    color: var(--text);
    font: inherit;
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
}

.nav-item:hover { background: var(--bg-alt); }

.nav-item[aria-current="page"] {
    background: var(--accent-3);
    color: var(--accent-strong);
    font-weight: 600;
}

.nav-item .icon { width: 1.1rem; text-align: center; opacity: 0.8; }

.app-side-foot { margin-top: auto; padding: 0 0.4rem; }

.app-main { padding: 1.6rem 2rem 3rem; max-width: 1280px; }

.app-top {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.4rem;
}

.app-top .spacer { margin-left: auto; }

.page-head { margin-bottom: 1.1rem; }
.page-head h2 { margin: 0 0 0.25rem; font-size: 1.3rem; color: var(--text-strong); }
.page-head .muted { margin: 0; }

.muted { color: var(--muted); }
.small { font-size: 0.8rem; }

/* --------------------------------------------------------------- Forms -- */

.field { display: block; margin-bottom: 0.8rem; }
.field > span { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 0.25rem; }

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--panel);
    color: var(--text);
    font: inherit;
}

.field input:focus,
.field select:focus { outline: 2px solid var(--accent-3); border-color: var(--accent); }

.field-row { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.field-row .field { flex: 1 1 150px; margin-bottom: 0.8rem; }

.btn-block { width: 100%; justify-content: center; }

.link-danger {
    border: 0;
    background: none;
    color: var(--danger);
    cursor: pointer;
    font: inherit;
    padding: 0 0 0 0.4rem;
}

/* -------------------------------------------------------------- Tables -- */

.table-scroll { overflow-x: auto; }

.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }

.data-table th {
    text-align: left;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    font-weight: 600;
    padding: 0.5rem 0.6rem;
    border-bottom: 1px solid var(--border-strong);
    white-space: nowrap;
}

.data-table td {
    padding: 0.55rem 0.6rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.data-table .num { text-align: right; }
.data-table tbody tr:hover { background: var(--bg-alt); }
.data-table .empty td { color: var(--muted); text-align: center; padding: 1.6rem; }
.data-table td .muted { display: block; font-size: 0.75rem; }

.data-table input[type="number"] {
    width: 5.5rem;
    padding: 0.25rem 0.4rem;
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    font: inherit;
    text-align: right;
}

/* Un lote a punto de vencer se ve antes de leerse. */
.warn { color: var(--warning); font-weight: 600; }
.danger { color: var(--danger); font-weight: 600; }
.ok { color: var(--success); font-weight: 600; }

.chip {
    display: inline-block;
    padding: 0.08rem 0.45rem;
    border-radius: 999px;
    background: var(--accent-3);
    color: var(--accent-strong);
    font-size: 0.7rem;
    font-weight: 600;
    white-space: nowrap;
}

.chip-muted { background: var(--bg-alt); color: var(--muted); }
.chip-danger { background: #f6e4e4; color: var(--danger); }
.chip-warn { background: #f7eddb; color: var(--warning); }

/* ------------------------------------------------------------ Mostrador -- */

.counter { display: grid; grid-template-columns: 1fr 320px; gap: 1.2rem; align-items: start; }

.counter-side { position: sticky; top: 1.6rem; }

.results {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin: -0.4rem 0 1rem;
    overflow: hidden;
}

.result {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.6rem;
    align-items: baseline;
    width: 100%;
    padding: 0.5rem 0.7rem;
    border: 0;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.result:last-child { border-bottom: 0; }
.result:hover { background: var(--accent-3); }
.result-name { font-weight: 600; }
.result-stock { font-size: 0.78rem; color: var(--muted); }
.result-stock.out { color: var(--danger); }
.result-price { font-weight: 600; white-space: nowrap; }
.result-empty { padding: 0.7rem; margin: 0; }

.totals { border-bottom: 1px solid var(--border); padding-bottom: 0.8rem; margin-bottom: 0.9rem; }
.totals > div { display: flex; justify-content: space-between; padding: 0.15rem 0; font-size: 0.9rem; }
.totals .grand { font-size: 1.15rem; margin-top: 0.4rem; color: var(--text-strong); }

/* ------------------------------------------------------------- Tablero -- */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 0.9rem;
    margin-bottom: 1.2rem;
}

.kpi { padding: 1rem 1.1rem; }
.kpi .label { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 0.25rem; }
.kpi .value { font-size: 1.5rem; font-weight: 700; color: var(--text-strong); }
.kpi .foot { display: block; font-size: 0.76rem; color: var(--muted); margin-top: 0.2rem; }

/* Las tarjetas del tablero llevan tablas de cinco columnas: por debajo de
   430 px se cortan, así que el grid baja a una sola columna antes de eso. */
.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(430px, 1fr));
    gap: 1rem;
}

.panel-grid .data-table { font-size: 0.84rem; }
.panel-grid .data-table th,
.panel-grid .data-table td { padding: 0.4rem 0.45rem; }

/* ------------------------------------------------------------- Ticket --- */

.ticket-preview {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    display: flex;
    justify-content: center;
}

.ticket-preview iframe { width: 320px; height: 460px; border: 0; background: #fff; }

/* -------------------------------------------------------------- Responsive */

@media (max-width: 980px) {
    .app-shell { grid-template-columns: 1fr; }
    .app-side { flex-direction: row; align-items: center; overflow-x: auto; border-right: 0;
                border-bottom: 1px solid var(--border); }
    .app-nav { flex-direction: row; }
    .app-side-foot { margin: 0; }
    .app-main { padding: 1.2rem; }
    .counter { grid-template-columns: 1fr; }
    .counter-side { position: static; }
}

/* --------------------------------------------------------------- Toast -- */

#toast-host {
    position: fixed;
    right: 1.2rem;
    bottom: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 50;
}

.toast {
    padding: 0.65rem 0.95rem;
    border-radius: var(--radius-sm);
    background: var(--text-strong);
    color: #fff;
    font-size: 0.88rem;
    box-shadow: var(--shadow-lg);
    max-width: 340px;
    transition: opacity 0.2s ease;
}

.toast.is-success { background: var(--success); }
.toast.is-error { background: var(--danger); }

/* Un producto del catálogo se despliega para ver sus lotes. */
.link-toggle {
    border: 0;
    background: none;
    padding: 0;
    font: inherit;
    color: var(--accent-strong);
    cursor: pointer;
    text-align: left;
}

.lots-row > td { background: var(--bg-alt); padding: 0.9rem 1rem; }

/* ---------------------------------------------------------------- Login -- */

.login-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background: var(--bg);
}

.login-box { width: min(380px, 92vw); display: grid; gap: 1rem; justify-items: center; }
.login-box .card { width: 100%; }
.login-box h2 { margin: 0 0 1rem; font-size: 1.25rem; }

.form-error {
    margin: 0 0 0.8rem;
    padding: 0.5rem 0.7rem;
    border-radius: var(--radius-sm);
    background: #f6e4e4;
    color: var(--danger);
    font-size: 0.85rem;
}