.stock-panel {
    background: #fff;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.12);
}

.stock-panel h2 {
    margin-top: 0;
}

.stock-company-select {
    margin-bottom: 1rem;
}

.stock-company-select label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
}

.stock-company-select select {
    width: 100%;
    max-width: 320px;
    padding: 0.45rem;
    border-radius: 4px;
    border: 1px solid #ccd0d7;
}

.stock-card {
    border: 1px solid #d7dde5;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    background: #fdfefe;
}

.stock-card-header {
    background: #3f86ad;
    color: #fff;
    font-weight: 700;
    padding: 0.6rem 0.9rem;
}

.stock-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem 1rem;
    padding: 1rem;
}

.stock-panel label {
    display: block;
    font-size: 0.85rem;
}

.stock-panel input[type="text"],
.stock-panel input[type="number"],
.stock-panel select {
    width: 100%;
    padding: 0.45rem;
    border-radius: 4px;
    border: 1px solid #ccd0d7;
    margin-top: 0.25rem;
}

.stock-panel button {
    margin: 0 1rem 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    border: none;
    background: #0d6efd;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

.stock-panel button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.stock-table {
    width: 100%;
    border-collapse: collapse;
}

.stock-table th,
.stock-table td {
    border: 1px solid #e2e6ea;
    padding: 0.6rem;
    text-align: left;
    vertical-align: top;
}

.stock-table th {
    background: #f1f3f5;
}

.stock-item-header {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.75rem 1rem;
    padding: 1rem 1rem 0;
}

.stock-item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    padding: 0 1rem 1rem;
    border-top: 1px solid #e2e6ea;
    margin-top: 1rem;
}

.stock-item-column {
    padding-top: 1rem;
}

.stock-subtitle {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #2a3038;
}

.stock-opening {
    border-top: 1px solid #e2e6ea;
    padding: 1rem;
}

.stock-opening-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
}

.inventory-submenu {
    background: #5b6470;
    padding: 0.5rem;
    border-radius: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.inventory-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.9rem;
    border-radius: 6px;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.inventory-pill:hover,
.inventory-pill.active {
    background: #1f6feb;
    border-color: #1f6feb;
    color: #fff;
}

.inventory-content {
    min-width: 0;
}

@media (max-width: 720px) {
    .stock-panel button {
        width: calc(100% - 2rem);
    }
}