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

:root {
    --sidebar-bg: #1c1416;
    --sidebar-bg-hover: #2b1f21;
    --sidebar-active-bg: #ffffff;
    --sidebar-active-fg: #8f2323;
    --sidebar-icon-fg: #a89195;

    --accent: #8f2323;
    --accent-hover: #711b1b;
    --accent-soft-bg: #fbe9e8;

    --page-bg: #f3f5f9;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 20px rgba(20, 24, 50, 0.06);
    --card-shadow-hover: 0 8px 28px rgba(20, 24, 50, 0.10);
    --border-subtle: #e9ebf2;

    --text-primary: #161a2e;
    --text-secondary: #7c8194;
    --text-tertiary: #a3a8ba;

    --danger: #e0483f;
    --danger-soft-bg: #fdeceb;
    --success: #1f9d55;
    --success-soft-bg: #e6f7ec;
    --warning: #c9820a;
    --warning-soft-bg: #fdf1de;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 40px;

    --sidebar-w: 76px;
}

body {
    font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--page-bg);
    color: var(--text-primary);
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* Login */
.login-box {
    max-width: 380px;
    margin: 10vh auto;
    background: var(--card-bg);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-subtle);
    text-align: center;
}

.login-logo {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
}

.login-box h1 {
    font-size: 22px;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.login-box input {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
}

.login-box input:focus {
    outline: none;
    border-color: var(--accent);
}

.error {
    color: var(--danger);
    font-size: 13px;
    margin-top: 12px;
    min-height: 16px;
}

/* Buttons */
.btn {
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    width: auto;
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: default;
}

.login-box .btn-primary {
    width: 100%;
    margin-top: 4px;
}

/* Layout shell */
.app-shell {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-logo {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-6);
    flex: 1;
}

.sidebar-nav-btn,
.sidebar-logout {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--sidebar-icon-fg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.sidebar-nav-btn svg,
.sidebar-logout svg {
    width: 22px;
    height: 22px;
}

.sidebar-nav-btn:hover {
    background: var(--sidebar-bg-hover);
    color: #fff;
}

.sidebar-nav-btn.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-fg);
}

.sidebar-logout {
    margin-top: auto;
}

.sidebar-logout:hover {
    background: rgba(224, 72, 63, 0.16);
    color: var(--danger);
}

/* Main area */
.main-area {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.top-bar {
    background: #fff;
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-5) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-titles h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.top-bar-subtitle {
    margin-top: 2px;
}

.email-text {
    font-size: 13px;
    color: var(--text-secondary);
}

.content {
    padding: var(--space-6);
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.tab-panel {
    display: block;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 16, 17, 0.55);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-6) var(--space-4);
    overflow-y: auto;
    z-index: 100;
}

.modal {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    margin: auto;
    box-shadow: var(--card-shadow-hover);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
}

.modal-header h2 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--page-bg);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-6);
    max-height: 75vh;
    overflow-y: auto;
}

/* Bölümler / kartlar */
.section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-5);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-subtle);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.section-header h2 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.add-row {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.add-row input {
    flex: 1;
    min-width: 140px;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
}

.add-row input:focus {
    outline: none;
    border-color: var(--accent);
}

.list {
    list-style: none;
}

.category-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    cursor: pointer;
    transition: border-color 0.15s ease;
}

.category-row.expanded {
    border-color: var(--accent);
}

.category-name {
    font-size: 15px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.category-name::after {
    content: "\203A";
    color: var(--text-tertiary);
    font-size: 16px;
    display: inline-block;
    transition: transform 0.15s ease;
}

.category-row.expanded .category-name::after {
    transform: rotate(90deg);
}

.category-subcats-panel {
    list-style: none;
    background: var(--page-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.subcategory-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.subcategory-item-label {
    flex: 1;
}

.subcategory-item:hover {
    background: #fff;
}

.subcategory-item.expanded {
    background: var(--accent-soft-bg);
    color: var(--accent);
}

.subcategory-delete {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-tertiary);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.subcategory-delete:hover {
    background: var(--danger-soft-bg);
    color: var(--danger);
}

.subcategory-item::after {
    content: "\203A";
    color: var(--text-tertiary);
    font-size: 15px;
    flex-shrink: 0;
    transition: transform 0.15s ease;
}

.subcategory-item.expanded::after {
    color: var(--accent);
    transform: rotate(90deg);
}

.category-products-list {
    padding: 4px 6px 8px 20px;
}

.category-products-item {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px dashed var(--border-subtle);
}

.category-products-item:last-child {
    border-bottom: none;
}

.category-products-price {
    color: var(--accent);
    font-weight: 600;
    white-space: nowrap;
}

.category-sub {
    color: var(--text-secondary);
    font-weight: normal;
}

.category-actions {
    display: flex;
    gap: var(--space-2);
}

.category-actions button {
    padding: 6px 14px;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
}

.category-actions .add-sub {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent-soft-bg);
}

.add-sub:hover {
    background: var(--accent-soft-bg);
}

.edit {
    background: var(--accent-soft-bg);
    color: var(--accent);
}

.edit:hover {
    background: #f6d4d2;
}

.delete {
    background: var(--danger-soft-bg);
    color: var(--danger);
}

.delete:hover {
    background: #fbdad7;
}

.empty {
    color: var(--text-secondary);
    padding: var(--space-3);
    text-align: center;
}

/* Ürün formu */
.product-form {
    display: flex;
    flex-direction: column;
}

.form-group {
    border: none;
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-4) 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group:first-child {
    border-top: none;
    padding-top: 0;
}

.form-group legend {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    padding: 0;
    margin-bottom: var(--space-2);
}

.form-group label:not(.checkbox-label):not(.file-label):not(.allergen-chip) {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: -4px;
}

.field-hint {
    font-weight: normal;
    text-transform: none;
    letter-spacing: normal;
    color: var(--text-tertiary);
}

.allergen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: var(--space-2);
}

.allergen-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.allergen-chip input {
    width: auto;
    margin: 0;
}

.allergen-chip.checked {
    border-color: var(--accent);
    background: var(--accent-soft-bg);
    color: var(--accent);
    font-weight: 600;
}

.product-form input,
.product-form textarea,
.product-form select {
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
}

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

.form-row {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.field {
    flex: 1;
    min-width: 140px;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-row input,
.form-row select {
    flex: 1;
    min-width: 100px;
}

.file-label {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-primary);
}

.checkbox-label input {
    width: auto;
    flex: none;
    min-width: 0;
}

.form-actions {
    margin-top: var(--space-2);
    align-items: center;
}

.cancel {
    background: #eef0f4 !important;
    color: var(--text-primary);
}

.cancel:hover {
    background: #e1e4ea !important;
}

.status {
    font-size: 13px;
    color: var(--danger);
    min-height: 16px;
    margin-top: var(--space-2);
}

/* Ürün grupları */
.product-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.group-title {
    grid-column: 1 / -1;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent-soft-bg);
    padding-bottom: var(--space-2);
}

.product-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.product-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.product-image-preview {
    width: 100%;
    height: 140px;
    object-fit: cover;
    flex-shrink: 0;
}

.no-image {
    width: 100%;
    height: 140px;
    background: #f0f1f5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-tertiary);
    flex-shrink: 0;
    text-align: center;
}

.product-info {
    flex: 1;
    padding: var(--space-3) var(--space-4);
}

.product-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-2);
}

.product-name {
    font-weight: 600;
    font-size: 15px;
}

.product-price {
    color: var(--accent);
    font-weight: 700;
    font-size: 14px;
    white-space: nowrap;
}

.product-description {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 4px;
}

.product-subcat {
    color: var(--text-tertiary);
    font-weight: normal;
}

.product-badges {
    display: flex;
    gap: 6px;
    margin-top: var(--space-2);
    flex-wrap: wrap;
}

.badge {
    font-size: 11px;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-weight: 600;
}

.badge-new {
    background: var(--success-soft-bg);
    color: var(--success);
}

.badge-featured {
    background: var(--warning-soft-bg);
    color: var(--warning);
}

.product-actions {
    display: flex;
    flex-direction: row;
    gap: var(--space-2);
    padding: 0 var(--space-4) var(--space-4);
}

.product-actions button {
    flex: 1;
    padding: 6px 12px;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
}

.empty.small {
    font-size: 13px;
    padding: var(--space-2) 0;
    text-align: left;
    grid-column: 1 / -1;
}

/* Responsive */
@media (max-width: 720px) {
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        flex-direction: row;
        justify-content: space-between;
        padding: var(--space-2) var(--space-4);
    }

    .sidebar-nav {
        flex-direction: row;
        margin-top: 0;
        flex: 0;
    }

    .sidebar-logout {
        margin-top: 0;
    }

    .top-bar {
        padding: var(--space-4);
    }

    .top-bar-titles h1 {
        font-size: 18px;
    }

    .content {
        padding: var(--space-4);
    }

    .form-row .field {
        min-width: 100%;
    }

    .product-group {
        grid-template-columns: 1fr;
    }
}