/* =========================================================
   inventory.css — Inventory management tab
   HarbourTech Restaurant Platform
   ========================================================= */

/* ----------------------------------------------------------
   Inventory sub-tabs
   ---------------------------------------------------------- */
.inv-tabs {
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
    scrollbar-width: none;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
}
.inv-tabs::-webkit-scrollbar { display: none; }

.inv-tab {
    flex-shrink: 0;
    padding: 0.5rem 0.9rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s;
}
.inv-tab:hover { color: var(--color-text); }
.inv-tab--active {
    color: var(--brand-primary);
    border-bottom-color: var(--brand-secondary);
}

/* ----------------------------------------------------------
   Alert badge on tab button
   ---------------------------------------------------------- */
.inv-alert-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.1rem;
    height: 1.1rem;
    padding: 0 0.25rem;
    font-size: 0.65rem;
    font-weight: 700;
    background: #ef4444;
    color: #fff;
    margin-left: 0.35rem;
    line-height: 1;
}

/* ----------------------------------------------------------
   Stock overview table
   ---------------------------------------------------------- */
.inv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.inv-table th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}
.inv-table td {
    padding: 0.625rem 0.75rem;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
.inv-table tr:last-child td { border-bottom: none; }
.inv-table tr:hover td { background: var(--color-surface); }

/* ----------------------------------------------------------
   Stock level badges
   ---------------------------------------------------------- */
.stock-level {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}
.stock-level--good     { background: #d1fae5; color: #065f46; }
.stock-level--warn     { background: #fef9c3; color: #854d0e; }
.stock-level--low      { background: #fed7aa; color: #9a3412; }
.stock-level--critical { background: #fee2e2; color: #991b1b; }

/* ----------------------------------------------------------
   Transaction / action form card
   ---------------------------------------------------------- */
.inv-form {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--brand-secondary);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}

.inv-form__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 1rem;
}

.inv-form__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1rem;
}
@media (max-width: 600px) {
    .inv-form__grid { grid-template-columns: 1fr; }
}

.inv-form__group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.inv-form__group--full {
    grid-column: 1 / -1;
}

.inv-form__label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text);
}

.inv-form__input,
.inv-form__select {
    padding: 0.55rem 0.75rem;
    font-size: 0.9rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0;
    box-sizing: border-box;
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
}
.inv-form__input:focus,
.inv-form__select:focus {
    outline: none;
    border-color: var(--brand-secondary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-secondary) 15%, transparent);
}

.inv-form__actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ----------------------------------------------------------
   Low stock alert panel
   ---------------------------------------------------------- */
.inv-alerts {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.inv-alert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.625rem 0.875rem;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-left: 4px solid #f97316;
    font-size: 0.875rem;
}

.inv-alert-item__name  { flex: 1; font-weight: 600; color: var(--color-text); }
.inv-alert-item__stock { color: #9a3412; font-weight: 700; white-space: nowrap; }

/* ----------------------------------------------------------
   Empty state
   ---------------------------------------------------------- */
.inv-empty {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ----------------------------------------------------------
   Success / error inline
   ---------------------------------------------------------- */
.inv-success {
    padding: 0.65rem 1rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-left: 4px solid #166534;
    color: #166534;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}