:root {
    --green-50: #f0fdf4;
    --green-100: #dcfce7;
    --green-200: #bbf7d0;
    --green-300: #86efac;
    --green-400: #4ade80;
    --green-500: #22c55e;
    --green-600: #16a34a;
    --green-700: #15803d;
    --green-800: #166534;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--green-50) 0%, var(--green-100) 100%);
    min-height: 100vh;
    color: var(--gray-800);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    color: var(--green-600);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--green-400);
    font-size: 1.1rem;
}

.upload-section {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(34, 197, 94, 0.1);
    margin-bottom: 40px;
    border: 2px solid var(--green-200);
}

.upload-section h2 {
    color: var(--green-600);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--green-700);
    font-weight: 600;
}

input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--green-200);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--green-400);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 2px dashed var(--green-300);
    border-radius: 10px;
    background: var(--green-50);
    cursor: pointer;
}

input[type="file"]:hover {
    border-color: var(--green-400);
    background: var(--green-100);
}

button {
    background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
    color: white;
    border: none;
    padding: 14px 30px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(22, 163, 74, 0.3);
}

.message {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
}

.message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.recipes-section h2 {
    color: var(--green-600);
    margin-bottom: 25px;
    font-size: 1.5rem;
    text-align: center;
}

.recipes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.recipe-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(34, 197, 94, 0.1);
    border: 2px solid var(--green-100);
    transition: transform 0.3s, box-shadow 0.3s;
}

.recipe-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(34, 197, 94, 0.15);
}

.recipe-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.recipe-content {
    padding: 20px;
}

.recipe-title {
    font-size: 1.3rem;
    color: var(--green-700);
    margin-bottom: 10px;
}

.recipe-meta {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 15px;
}

.recipe-text {
    background: var(--green-50);
    padding: 20px;
    border-radius: 10px;
    max-height: 300px;
    overflow-y: auto;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
    border: 1px solid var(--green-100);
}

.recipe-text::-webkit-scrollbar {
    width: 8px;
}

.recipe-text::-webkit-scrollbar-track {
    background: var(--green-100);
    border-radius: 4px;
}

.recipe-text::-webkit-scrollbar-thumb {
    background: var(--green-300);
    border-radius: 4px;
}

.download-link {
    display: inline-block;
    background: var(--green-100);
    color: var(--green-700);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
}

.download-link:hover {
    background: var(--green-200);
}

.delete-form {
    display: inline;
}

.delete-btn {
    background: transparent;
    color: var(--green-400);
    padding: 8px 15px;
    font-size: 0.85rem;
    border: 1px solid var(--green-200);
}

.delete-btn:hover {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fca5a5;
    transform: none;
    box-shadow: none;
}

.recipe-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--green-100);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--green-400);
}

.empty-state::before {
    content: '📝';
    font-size: 4rem;
    display: block;
    margin-bottom: 20px;
}

.file-type-badge {
    display: inline-block;
    background: var(--green-100);
    color: var(--green-600);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.nav-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 25px;
    flex-wrap: wrap;
}

.nav-tab {
    background: white;
    color: var(--green-600);
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--green-200);
    transition: all 0.3s;
}

.nav-tab:hover {
    background: var(--green-100);
    border-color: var(--green-400);
}

.nav-tab.active {
    background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
    color: white;
    border-color: transparent;
}

/* Lists styles */
.lists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.list-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 40px rgba(34, 197, 94, 0.1);
    border: 2px solid var(--green-100);
    transition: transform 0.3s, box-shadow 0.3s;
}

.list-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 45px rgba(34, 197, 94, 0.15);
}

.list-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--green-100);
}

.list-card-title {
    font-size: 1.2rem;
    color: var(--green-700);
    display: flex;
    align-items: center;
    gap: 10px;
}

.list-card-title .icon {
    font-size: 1.5rem;
}

.list-items {
    list-style: none;
    margin-bottom: 15px;
}

.list-items li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--green-50);
}

.list-items li:last-child {
    border-bottom: none;
}

.item-name {
    color: var(--gray-800);
    font-size: 0.95rem;
}

.item-delete {
    background: none;
    border: none;
    color: var(--green-300);
    cursor: pointer;
    padding: 5px;
    font-size: 1rem;
    transition: color 0.2s;
}

.item-delete:hover {
    color: #ef4444;
    transform: none;
    box-shadow: none;
}

.add-item-form {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.add-item-form input {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid var(--green-200);
    border-radius: 8px;
    font-size: 0.9rem;
}

.add-item-form button {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.paste-btn {
    background: var(--green-100);
    border: 2px solid var(--green-200);
    color: var(--green-600);
    padding: 10px 12px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
}

.paste-btn:hover {
    background: var(--green-200);
    border-color: var(--green-400);
}

.paste-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.paste-modal-content {
    background: white;
    border-radius: 15px;
    padding: 25px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.paste-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.paste-modal-header h3 {
    margin: 0;
    color: var(--green-800);
}

.paste-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--green-400);
    padding: 0;
    line-height: 1;
}

.paste-modal-close:hover {
    color: var(--green-600);
}

#paste-textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--green-200);
    border-radius: 10px;
    font-size: 0.95rem;
    resize: vertical;
    font-family: inherit;
    box-sizing: border-box;
}

#paste-textarea:focus {
    outline: none;
    border-color: var(--green-400);
}

.paste-hint {
    font-size: 0.85rem;
    color: var(--green-500);
    margin: 10px 0;
}

.paste-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.paste-modal-actions button {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

.paste-modal-actions button:first-child {
    background: var(--green-100);
    border: 2px solid var(--green-200);
    color: var(--green-600);
}

.paste-modal-actions button:last-child {
    background: var(--green-600);
    border: none;
    color: white;
}

.paste-modal-actions button:last-child:hover {
    background: var(--green-700);
}

.list-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-list-btn {
    background: var(--green-100);
    border: none;
    color: var(--green-600);
    cursor: pointer;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 5px;
    transition: background 0.2s;
}

.sort-list-btn:hover {
    background: var(--green-200);
    transform: none;
    box-shadow: none;
}

.delete-category-btn {
    background: none;
    border: none;
    color: var(--green-300);
    cursor: pointer;
    padding: 5px;
    font-size: 1.2rem;
}

.delete-category-btn:hover {
    color: #ef4444;
    transform: none;
    box-shadow: none;
}

.icon-select {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.icon-option {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--green-200);
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.icon-option:hover {
    border-color: var(--green-400);
    background: var(--green-50);
}

.icon-option.selected {
    border-color: var(--green-500);
    background: var(--green-100);
}

.item-count {
    background: var(--green-100);
    color: var(--green-600);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Checkbox styling */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--green-500);
    cursor: pointer;
}

.checkbox-text {
    color: var(--gray-600);
}

/* Expiry date styling */
.expiry-badge {
    font-size: 0.9rem;
}

.item-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 10px;
}

.item-expiry {
    font-size: 0.95rem;
    color: var(--gray-600);
    white-space: nowrap;
}

.item-expiry.expiring-soon {
    color: #b45309;
    font-weight: 600;
}

.item-expiry.expired {
    color: #dc2626;
    font-weight: 600;
}

.list-items li.expiring-soon {
    background: #fffbeb;
}

.list-items li.expired {
    background: #fef2f2;
}

.expiry-input {
    width: 90px !important;
    flex: none !important;
    text-align: center;
}

.add-item-form.has-expiry {
    flex-wrap: wrap;
}

.add-item-form.has-expiry input[name="new_item"] {
    flex: 1;
    min-width: 120px;
}

/* Search and sort controls */
.search-sort-bar {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 45px;
    border: 2px solid var(--green-200);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--green-400);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
}

.sort-btn {
    padding: 12px 20px;
    background: white;
    border: 2px solid var(--green-200);
    border-radius: 10px;
    color: var(--green-600);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-btn:hover {
    background: var(--green-100);
    border-color: var(--green-400);
    transform: none;
    box-shadow: none;
}

.sort-btn.active {
    background: var(--green-100);
    border-color: var(--green-500);
}

.hidden {
    display: none !important;
}

/* Edit functionality */
.item-actions {
    display: flex;
    gap: 5px;
    align-items: center;
}

.edit-btn {
    background: none;
    border: none;
    color: var(--green-400);
    cursor: pointer;
    padding: 5px;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.edit-btn:hover {
    color: var(--green-600);
    transform: none;
    box-shadow: none;
}

.edit-form {
    display: flex;
    gap: 8px;
    align-items: center;
    flex: 1;
}

.edit-form input[type="text"] {
    padding: 6px 10px;
    border: 2px solid var(--green-300);
    border-radius: 6px;
    font-size: 0.9rem;
}

.edit-form input[name="edit_item_name"] {
    flex: 1;
}

.edit-form input[name="edit_expiry_date"] {
    width: 80px;
}

.edit-form button {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.cancel-btn {
    background: var(--gray-100) !important;
    color: var(--gray-600) !important;
}

.cancel-btn:hover {
    background: var(--gray-200) !important;
}

.edit-category-form {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.edit-category-form input[type="text"] {
    padding: 8px 12px;
    border: 2px solid var(--green-300);
    border-radius: 8px;
    font-size: 1rem;
    flex: 1;
    min-width: 150px;
}

.edit-category-form .icon-select-small {
    display: flex;
    gap: 5px;
}

.icon-select-small label {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--green-200);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
}

.icon-select-small label:hover {
    border-color: var(--green-400);
}

.icon-select-small input:checked + span {
    border-color: var(--green-500);
    background: var(--green-100);
}

.category-edit-btn {
    background: none;
    border: none;
    color: var(--green-400);
    cursor: pointer;
    padding: 3px;
    font-size: 0.85rem;
}

.category-edit-btn:hover {
    color: var(--green-600);
    transform: none;
    box-shadow: none;
}

/* Card title edit */
.card-title-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-edit-btn {
    background: none;
    border: none;
    color: var(--green-400);
    cursor: pointer;
    padding: 3px;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

.recipe-card:hover .card-edit-btn {
    opacity: 1;
}

.card-edit-btn:hover {
    color: var(--green-600);
    transform: none;
    box-shadow: none;
}

.card-edit-form {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 10px;
}

.card-edit-form input {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid var(--green-300);
    border-radius: 8px;
    font-size: 1rem;
}

.card-edit-form button {
    padding: 8px 15px;
    font-size: 0.85rem;
}

/* Clickable images */
.recipe-image.clickable,
.recipe-text.clickable {
    cursor: pointer;
    transition: opacity 0.2s, box-shadow 0.2s;
}

.recipe-image.clickable:hover {
    opacity: 0.9;
}

.recipe-text.clickable:hover {
    box-shadow: 0 0 0 3px var(--green-300);
}

/* View button */
.view-link {
    display: inline-block;
    background: var(--green-500);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: background 0.3s;
}

.view-link:hover {
    background: var(--green-600);
}

/* Lightbox Modal */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.lightbox-content {
    max-width: 95%;
    max-height: 95%;
    position: relative;
    background: white;
    border-radius: 15px;
    overflow: hidden;
}

.lightbox-content.image-view {
    background: transparent;
}

.lightbox-content.image-view img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 10px;
}

.lightbox-content.text-view {
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.lightbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 2px solid var(--green-100);
    background: var(--green-50);
}

.lightbox-header h3 {
    margin: 0;
    color: var(--green-700);
    font-size: 1.3rem;
}

.lightbox-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--green-400);
    padding: 0;
    line-height: 1;
    transition: color 0.2s;
}

.lightbox-close:hover {
    color: var(--green-600);
    transform: none;
    box-shadow: none;
}

.lightbox-body {
    padding: 25px;
    overflow-y: auto;
    flex: 1;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-800);
}

.lightbox-image-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    font-size: 2.5rem;
    cursor: pointer;
    color: white;
    padding: 10px;
    line-height: 1;
}

.lightbox-image-close:hover {
    color: var(--green-300);
    transform: none;
    box-shadow: none;
}

@media (max-width: 768px) {
    .recipes-grid, .lists-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.8rem;
    }

    .nav-tabs {
        gap: 8px;
    }

    .nav-tab {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .form-row {
        flex-direction: column;
    }
}