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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f9f9f9;
    --bg-tertiary: #f0f0f0;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-primary: #000000;
    --border-secondary: #666666;
    --button-bg: #000000;
    --button-text: #ffffff;
    --button-hover: #333333;
    --disabled-bg: #cccccc;
    --disabled-text: #cccccc;
    --disabled-border: #cccccc;
    --modal-overlay: rgba(0, 0, 0, 0.8);
}

body.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-tertiary: #808080;
    --border-primary: #ffffff;
    --border-secondary: #b3b3b3;
    --button-bg: #ffffff;
    --button-text: #000000;
    --button-hover: #e0e0e0;
    --disabled-bg: #3a3a3a;
    --disabled-text: #5a5a5a;
    --disabled-border: #3a3a3a;
    --modal-overlay: rgba(255, 255, 255, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.theme-toggle-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 999;
}

.theme-toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    cursor: pointer;
}

.theme-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-primary);
    transition: 0.3s;
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: var(--bg-primary);
    transition: 0.3s;
    border-radius: 50%;
}

.theme-toggle input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

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

header {
    text-align: center;
    padding: 40px 0;
    border-bottom: 2px solid var(--border-primary);
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

main {
    min-height: 60vh;
}

#categories-container {
    margin-bottom: 40px;
}

.category-section {
    margin-bottom: 30px;
    border: 2px solid var(--border-primary);
    padding: 20px;
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: capitalize;
}

.remove-category-btn {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.remove-category-btn:hover {
    background-color: var(--button-hover);
}

.items-scroll-container {
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    padding: 10px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--border-primary) var(--bg-tertiary);
}

.items-scroll-container::-webkit-scrollbar {
    height: 8px;
}

.items-scroll-container::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

.items-scroll-container::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 4px;
}

.items-scroll-container::-webkit-scrollbar-thumb:hover {
    background: var(--button-hover);
}

.item-card {
    display: inline-block;
    width: 150px;
    margin-right: 15px;
    cursor: pointer;
    border: 3px solid transparent;
    padding: 10px;
    background-color: var(--bg-secondary);
    transition: all 0.2s;
    vertical-align: top;
}

.item-card:hover {
    border-color: var(--border-secondary);
}

.item-card.selected {
    border-color: var(--border-primary);
}

.item-image {
    width: 100%;
    height: 150px;
    object-fit: contain;
    display: block;
    background-color: var(--bg-primary);
}

.empty-category {
    text-align: center;
    padding: 40px;
    color: var(--text-tertiary);
    font-style: italic;
}

#add-category-container {
    text-align: center;
    padding: 40px;
    margin-bottom: 40px;
}

.add-btn {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.2s;
}

.add-btn:hover {
    background-color: var(--button-hover);
}

.add-btn:disabled {
    background-color: var(--disabled-bg);
    cursor: not-allowed;
}

.plus-icon {
    font-size: 1.5rem;
    font-weight: bold;
}

.randomize-btn {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.2s;
    margin-left: 15px;
}

.randomize-btn:hover {
    background-color: var(--button-hover);
}

.category-count {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#selected-outfit {
    border-top: 2px solid var(--border-primary);
    padding-top: 40px;
    margin-top: 40px;
}

#selected-outfit h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
}

#outfit-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    min-height: 200px;
    padding: 30px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-primary);
    margin-bottom: 20px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.empty-state {
    text-align: center;
    color: var(--text-tertiary);
    font-style: italic;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.outfit-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.outfit-item-label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: capitalize;
}

.outfit-item-image {
    max-width: 200px;
    max-height: 200px;
    width: auto;
    height: auto;
    object-fit: contain;
    border: 2px solid var(--border-primary);
    background-color: var(--bg-primary);
    display: block;
}

.outfit-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

.primary-btn {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

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

.primary-btn:disabled {
    background-color: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
}

.secondary-btn {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
}

.tertiary-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-secondary);
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tertiary-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-primary);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(5px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    padding: 40px;
    max-width: 500px;
    width: 90%;
    border: 3px solid var(--border-primary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.modal-content h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
}

.category-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.category-option {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    padding: 20px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.category-option:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
}

.category-option:disabled {
    background-color: var(--disabled-bg);
    color: var(--disabled-text);
    border-color: var(--disabled-border);
    cursor: not-allowed;
}

.close-modal {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s;
}

.close-modal:hover {
    background-color: var(--bg-tertiary);
}

.share-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.share-option {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    padding: 20px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 15px;
}

.share-option:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
}

.share-icon {
    font-size: 1.5rem;
}

/* OBS Section */
#obs-section {
    border-top: 2px solid var(--border-primary);
    padding-top: 40px;
    margin-top: 40px;
}

#obs-section h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    text-align: center;
}

.obs-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.obs-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.obs-instructions {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-secondary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.obs-instructions summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 5px 0;
}

.obs-instructions ol {
    margin: 15px 0 15px 20px;
    line-height: 1.8;
}

.obs-instructions li {
    margin-bottom: 8px;
}

.obs-tip {
    margin-top: 15px;
    padding: 15px;
    background-color: var(--bg-tertiary);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.obs-tip code {
    display: inline-block;
    margin-top: 5px;
    padding: 5px 10px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    font-family: monospace;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .category-options {
        grid-template-columns: 1fr;
    }

    .item-card {
        width: 120px;
    }

    .item-image {
        height: 120px;
    }

    .randomize-btn {
        margin-left: 0;
        margin-top: 15px;
    }

    .outfit-actions {
        flex-direction: column;
    }

    .primary-btn,
    .secondary-btn,
    .tertiary-btn {
        width: 100%;
    }

    .obs-actions {
        flex-direction: column;
    }
}