/* ==============================
   1. INVENTORY CONTAINER
============================== */

.inventory-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    color: var(--text);
}

/* ==============================
   2. INVENTORY HEADER
============================== */

.inventory-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.inventory-header h2 {
    margin: 0 0 8px;
    font-size: 26px;
    font-weight: 700;
}

.inventory-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.5;
}

/* ==============================
   3. INVENTORY SUMMARY
============================== */

.inventory-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.inventory-summary-card {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.inventory-summary-card p {
    margin: 0 0 12px;
    color: var(--text-muted);
    font-size: 14px;
}

.inventory-summary-card strong {
    display: block;
    font-size: 26px;
    font-weight: 700;
}

.inventory-warning-number {
    color: #d97706;
}

.inventory-danger-number {
    color: #dc2626;
}

/* ==============================
   4. INVENTORY SECTION
============================== */

.inventory-section {
    margin-bottom: 28px;
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.inventory-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.inventory-section-header h3 {
    margin: 0 0 6px;
    font-size: 19px;
    font-weight: 700;
}

.inventory-section-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.5;
}

/* ==============================
   5. INVENTORY TOOLBAR
============================== */

.inventory-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.inventory-search,
.inventory-filter {
    min-height: 42px;
    padding: 10px 12px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

.inventory-search {
    flex: 1;
    min-width: 0;
}

.inventory-filter {
    width: 210px;
    cursor: pointer;
}

.inventory-search:focus,
.inventory-filter:focus {
    border-color: var(--primary);
}

.inventory-search::placeholder {
    color: var(--text-muted);
}

/* ==============================
   6. INVENTORY TABLE
============================== */

.inventory-table-wrapper {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.inventory-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.inventory-table th,
.inventory-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.inventory-table th {
    color: var(--text);
    background: var(--background);
    font-weight: 600;
}

.inventory-table td {
    color: var(--text);
}

.inventory-table tbody tr:last-child td {
    border-bottom: none;
}

.inventory-table tbody tr:hover {
    background: var(--background);
}

/* ==============================
   7. STOCK STATUS
============================== */

.inventory-stock-status {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.stock-available {
    color: #15803d;
    background: #dcfce7;
}

.stock-low {
    color: #b45309;
    background: #fef3c7;
}

.stock-out {
    color: #b91c1c;
    background: #fee2e2;
}

/* ==============================
   8. INVENTORY FORM
============================== */

.inventory-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.inventory-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.inventory-form-group label {
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
}

.inventory-form-group input,
.inventory-form-group select,
.inventory-form-group textarea {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

.inventory-form-group textarea {
    min-height: 90px;
    resize: vertical;
}

.inventory-form-group input:focus,
.inventory-form-group select:focus,
.inventory-form-group textarea:focus {
    border-color: var(--primary);
}

.inventory-form-group small {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.5;
}

/* ==============================
   9. INVENTORY BUTTON
============================== */

.inventory-submit-button {
    grid-column: 1 / -1;
    justify-self: start;
    min-height: 44px;
    padding: 11px 22px;
    color: #ffffff;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.inventory-submit-button:hover {
    background: var(--primary-hover);
}

.inventory-submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ==============================
   10. MOVEMENT QUANTITY
============================== */

.inventory-quantity-increase {
    color: #15803d !important;
    font-weight: 600;
}

.inventory-quantity-decrease {
    color: #dc2626 !important;
    font-weight: 600;
}

/* ==============================
   11. EMPTY STATE
============================== */

.inventory-empty {
    padding: 32px 20px;
    color: var(--text-muted);
    background: var(--background);
    border: 1px dashed var(--border);
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    line-height: 1.6;
}

/* ==============================
   12. INVENTORY MESSAGE
============================== */

.inventory-message {
    margin-bottom: 20px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.inventory-message-info {
    color: var(--text);
    background: var(--background);
}

.inventory-message-success {
    color: #15803d;
    background: #dcfce7;
    border-color: #bbf7d0;
}

.inventory-message-error {
    color: #b91c1c;
    background: #fee2e2;
    border-color: #fecaca;
}

/* ==============================
   13. RESPONSIVE - TABLET
============================== */

@media (max-width: 900px) {
    .inventory-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .inventory-container {
        padding: 20px;
    }
}

/* ==============================
   14. RESPONSIVE - MOBILE
============================== */

@media (max-width: 600px) {
    .inventory-container {
        padding: 14px;
    }

    .inventory-header {
        align-items: flex-start;
    }

    .inventory-header h2 {
        font-size: 22px;
    }

    .inventory-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .inventory-summary-card {
        padding: 14px;
    }

    .inventory-summary-card p {
        font-size: 12px;
    }

    .inventory-summary-card strong {
        font-size: 22px;
    }

    .inventory-section {
        padding: 16px;
    }

    .inventory-section-header h3 {
        font-size: 17px;
    }

    .inventory-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .inventory-search,
    .inventory-filter {
        width: 100%;
    }

    .inventory-form {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .inventory-submit-button {
        width: 100%;
    }

    .inventory-table th,
    .inventory-table td {
        padding: 12px;
        font-size: 13px;
    }
}

/* ==============================
   15. REDUCED MOTION
============================== */

@media (prefers-reduced-motion: reduce) {
    .inventory-submit-button {
        transition: none;
    }
}