:root {
    --turquoise: #00B4D8;
    --turquoise-dark: #0077B6;
    --turquoise-light: #90E0EF;
    --white: #FFFFFF;
    --black: #111111;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-500: #64748B;
    --gray-700: #334155;
    --gray-900: #0F172A;
    --radius: 0.75rem;
    --radius-xl: 1.25rem;
    --font: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--gray-50);
    color: var(--black);
}

a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }

.admin-header {
    background: var(--gray-900);
    color: var(--white);
    padding: 0 2rem;
    height: 4rem;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.admin-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.3rem;
}

.badge-admin {
    background: var(--turquoise);
    color: var(--white);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-logout {
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    font-size: 1rem;
    transition: background 0.2s;
}

.btn-logout:hover {
    background: #EF4444;
}

.admin-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: calc(100vh - 4rem);
}

.admin-sidebar {
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    padding: 1.5rem 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    font-weight: 500;
    transition: background 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    background: var(--gray-50);
}

.sidebar-link.active {
    background: rgba(0,180,216,0.08);
    color: var(--turquoise-dark);
    font-weight: 600;
    border-left-color: var(--turquoise);
}

.admin-main {
    padding: 2rem;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 600;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: 0.2s;
}

.btn-primary {
    background: var(--turquoise);
    color: white;
}

.btn-primary:hover {
    background: var(--turquoise-dark);
}

.btn-outline {
    border: 2px solid var(--gray-300);
    background: white;
}

.btn-outline:hover {
    background: var(--gray-50);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
}

.products-table-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow-x: auto;
}

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

.products-table th {
    text-align: left;
    padding: 1rem 1rem;
    background: var(--gray-50);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
}

.products-table td {
    padding: 0.8rem 1rem;
    border-top: 1px solid var(--gray-200);
}

.img-cell img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.img-cell i {
    font-size: 1.5rem;
    color: var(--turquoise);
}

.btn-edit {
    color: var(--turquoise-dark);
    background: none;
    border: none;
    font-size: 1rem;
    margin-right: 0.5rem;
}

.btn-delete {
    color: #EF4444;
    background: none;
    border: none;
    font-size: 1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--gray-500);
}

.product-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.7rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font);
}

.file-upload {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
}

.file-upload__preview img {
    max-height: 120px;
    margin-bottom: 0.5rem;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
}

.filters-config-box {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 2rem;
    margin-top: 1rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.text-muted {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.security-hint {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.security-code-box {
    margin-top: 1.5rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 1.5rem 2rem 2rem;
}

.security-code-box h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.security-code-box p {
    color: var(--gray-500);
    margin-bottom: 1rem;
}

.security-code-row {
    margin-bottom: 0;
}

.info-box {
    background: #E0F2FE;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        display: flex;
        overflow-x: auto;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }

    .sidebar-link {
        border-left: none;
        white-space: nowrap;
    }
}