:root {
    --mustard: #FFB800;
    --mustard-dark: #E5A600;
    --mustard-light: #FFE5A3;
    --black: #1A1A1A;
    --black-soft: #2D2D2D;
    --white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray: #E0E0E0;
    --gray-dark: #9E9E9E;
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
}

.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--black);
    color: var(--white);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-area i {
    color: var(--mustard);
    font-size: 2rem;
}

.logo-area .accent {
    color: var(--mustard);
}

.nav-menu {
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    color: var(--gray);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all 0.2s ease;
}

.nav-item i {
    width: 20px;
    color: var(--mustard);
    opacity: 0.7;
    transition: opacity 0.2s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.nav-item:hover i {
    opacity: 1;
}

.nav-item.active {
    background: var(--mustard);
    color: var(--black);
    font-weight: 600;
}

.nav-item.active i {
    color: var(--black);
    opacity: 1;
}

.storage-indicator {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-top: 2rem;
}

.storage-indicator i {
    color: var(--mustard);
    font-size: 1.25rem;
}

.storage-info {
    display: flex;
    flex-direction: column;
}

.storage-info span {
    font-weight: 600;
    font-size: 0.875rem;
}

.storage-info small {
    font-size: 0.75rem;
    color: var(--gray-dark);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    background: var(--gray-light);
    min-height: 100vh;
}

.top-bar {
    background: var(--white);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--gray);
}

.page-title h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.page-title p {
    color: var(--gray-dark);
    font-size: 0.875rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: var(--mustard);
    color: var(--black);
}

.btn-primary:hover {
    background: var(--mustard-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(255, 184, 0, 0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray);
    color: var(--black);
}

.btn-outline:hover {
    background: var(--gray-light);
    border-color: var(--mustard);
}

.content-area {
    padding: 2rem;
}

/* Cards */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--gray);
    height: auto;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-header h3 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-header i {
    color: var(--mustard);
    font-size: 1rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-dark);
    font-size: 0.875rem;
}

/* Tables */
.table-container {
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--gray);
    overflow-x: auto;
}

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

th {
    text-align: left;
    padding: 1rem;
    background: var(--gray-light);
    color: var(--black);
    font-weight: 600;
    font-size: 0.875rem;
    border-bottom: 2px solid var(--gray);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray);
    color: var(--black-soft);
}

tr:hover {
    background: var(--gray-light);
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.status-instock {
    background: var(--mustard-light);
    color: var(--mustard-dark);
    border: 1px solid var(--mustard);
}

.status-shipped {
    background: var(--gray);
    color: var(--black-soft);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--black);
}

.form-group .required {
    color: var(--mustard);
    margin-left: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray);
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--mustard);
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--gray);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    margin: 1rem 0;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-area:hover {
    border-color: var(--mustard);
    background: var(--mustard-light);
}

.upload-area i {
    font-size: 2rem;
    color: var(--mustard);
    margin-bottom: 0.5rem;
}

.upload-area p {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.upload-area small {
    color: var(--gray-dark);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-dark);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--gray);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--black);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: none;
    align-items: center;
    gap: 0.75rem;
    z-index: 1100;
    border-left: 4px solid var(--mustard);
}

.toast.show {
    display: flex;
    animation: slideRight 0.3s ease;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--error);
}

@keyframes slideRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 3rem;
    color: var(--gray-dark);
}

.loading-state i {
    font-size: 2rem;
    color: var(--mustard);
    margin-bottom: 1rem;
}

/* Search Bar */
.search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-dark);
}

.search-input input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid var(--gray);
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
}

.filter-select {
    padding: 0.75rem;
    border: 1px solid var(--gray);
    border-radius: 6px;
    min-width: 150px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 0;
        padding: 0;
        overflow: hidden;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .top-bar {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}