*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --bg-color: #f9f9f9;
    --container-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #555555;
    --accent-color: #007acc;
    --accent-text: #ffffff;
    --border-color: #dddddd;
    --item-bg: #f4f4f4;
    --item-header-bg: #e0e0e0;
    --points-bg: #f0f0f0;
    --points-border: #cccccc;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --font-base: 16px;
    --font-title: 28px;
    --font-description: 16px;
    --font-tab: 15px;
    --font-accordion: 16px;
    --font-subcategory: 28px;
    --font-option-title: 15px;
    --font-option-req: 13px;
    --font-option-desc: 13px;
    --font-story: 15px;
    --font-story-input: 14px;
    --font-points: 14px;
    --font-points-value: 14px;
    --font-prereq-help: 12px;
    --font-label: 14px;
}

body {
    font-family: sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 0;
    margin: 0;
    min-height: 100vh;
    font-size: var(--font-base);
}

.container {
    max-width: none;
    margin: 0;
    background: var(--container-bg);
    min-height: 100vh;
    padding: 32px 40px 80px;
    border-radius: 0;
    box-shadow: none;
}

button {
    padding: 8px 12px;
    cursor: pointer;
    border: none;
    border-radius: 6px;
    background-color: var(--accent-color);
    color: var(--accent-text);
    margin-top: 10px;
}

button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.description h2 {
    font-size: var(--font-title);
    margin: 0 0 8px;
}

.description p {
    font-size: var(--font-description);
    margin: 0 0 16px;
    color: var(--text-muted);
}

.tab-button {
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-muted);
    font-size: var(--font-tab);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0;
}

.tab-button:hover {
    color: var(--text-color);
    border-bottom-color: var(--border-color);
}

.tab-button.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.tab-content {
    display: block;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.accordion-item {
    margin-top: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--item-bg);
}

.accordion-header {
    padding: 12px 16px;
    font-weight: bold;
    background-color: var(--item-header-bg);
    cursor: pointer;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
    font-size: var(--font-accordion);
}

.accordion-header:hover {
    filter: brightness(1.1);
    border-bottom-color: var(--accent-color);
}

.accordion-content {
    padding: 20px;
    display: none;
    border-top: 1px solid var(--border-color);
}

/* Subcategory Tab Navigation */
.subcategory-navigation {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    background: var(--item-bg);
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.subcategory-tab-button {
    padding: 10px 16px;
    background: none;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: var(--font-subcategory);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0;
}

.subcategory-tab-button:hover:not(.locked) {
    background-color: var(--item-header-bg);
    color: var(--text-color);
}

.subcategory-tab-button.active {
    background-color: var(--accent-color);
    color: var(--accent-text);
    border-color: var(--accent-color);
}

.subcategory-tab-button.locked {
    opacity: 0.6;
    cursor: pointer;
    background: #eee;
    color: #999;
}

.subcategory-content.tab-active {
    display: block;
}

.subcategory-content-title {
    font-size: var(--font-subcategory);
    font-weight: bold;
    text-align: center;
    margin: 30px 0 20px 0;
    padding: 12px;
    background-color: var(--item-header-bg);
    border-bottom: 3px solid var(--accent-color);
    border-radius: 4px;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.subcategory-item {
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(var(--columns-per-row-effective, var(--columns-per-row, 2)), minmax(0, 1fr));
    gap: 24px 16px;
    margin-top: 12px;
    width: 100%;
}

.option-wrapper {
    display: flex;
    flex-direction: column;
    min-width: 0;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--container-bg);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    /* Removed height: 100% and margin-bottom to prevent grid overflow */
}

.option-wrapper:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px var(--shadow-color);
    transform: translateY(-2px);
    z-index: 10;
    position: relative;
}

.option-wrapper.is-clickable {
    cursor: pointer;
}

.option-wrapper.selected {
    border-color: var(--accent-color);
    background-color: rgba(0, 122, 204, 0.05);
    box-shadow: 0 0 0 2px var(--accent-color);
}

.option-wrapper.selected:hover {
    background-color: rgba(0, 122, 204, 0.1);
}

.option-wrapper img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.option-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    width: 100%;
    text-align: center;
}

.option-content strong {
    font-size: var(--font-option-title);
}

.option-wrapper button {
    align-self: stretch;
    padding: 10px 12px;
    background-color: var(--accent-color);
    color: var(--accent-text);
    border: none;
    border-radius: 6px;
    margin-top: 12px;
    font-weight: 600;
}

.option-wrapper button[disabled] {
    background-color: #cccccc;
    color: #666;
    border: 1px solid #999;
    cursor: not-allowed;
    opacity: 0.6;
}

.option-requirements {
    font-size: var(--font-option-req);
    color: var(--text-muted);
    white-space: pre-wrap;
    margin-top: 4px;
}

.option-description {
    font-size: var(--font-option-desc);
    color: var(--text-color);
    line-height: 1.5;
    margin-top: 4px;
}

.points-tracker {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--points-bg);
    border-top: 1px solid var(--points-border);
    padding: 10px 20px;
    font-size: var(--font-points);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -2px 6px var(--shadow-color);
}

.modal {
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
}

.modal-content {
    background-color: var(--container-bg);
    margin: 10% auto;
    padding: 20px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    max-height: 80vh;
    overflow-y: auto;
    color: var(--text-color);
}

#modalTextarea {
    width: 100%;
    height: 150px;
    margin-top: 10px;
    padding: 10px;
    font-family: monospace;
    font-size: var(--font-base);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    resize: vertical;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 15px;
}

#modalClose {
    background-color: #ccc;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

#modalClose:hover {
    color: #000;
}

.conflict {
    background-color: #e57373 !important;
    color: white !important;
}

.prereq {
    background-color: #fbc02d !important;
    color: black !important;
}

.prereq-help {
    display: inline-block;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 50%;
    background: #eef3ff;
    color: #0366d6;
    font-weight: 600;
    font-size: var(--font-prereq-help);
    margin-left: 6px;
    cursor: help;
    border: 1px solid rgba(3, 102, 214, 0.12);
}

.header-image-container {
    width: 100%;
    max-height: 300px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 16px;
    position: relative;
    /* allow badge positioning */
}

.header-image-warning {
    position: absolute;
    right: 10px;
    bottom: 10px;
    background: rgba(255, 165, 0, 0.95);
    color: #000;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 13px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    z-index: 10;
}

.header-image-container img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    object-position: center;
    border-radius: 8px;
    display: block;
}

/* When user opts to prevent upscaling, keep image at natural size (max 100% of container) */
.header-image-container img.no-upscale {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: none;
    object-position: center;
}

.story-block {
    white-space: pre-wrap;
    background: var(--bg-color);
    border-left: 4px solid var(--border-color);
    padding: 1em;
    margin-bottom: 1em;
    font-family: serif;
    font-size: var(--font-story);
    color: var(--text-color);
}

.story-input-wrapper {
    margin-bottom: 1em;
}

.story-input-wrapper label {
    display: block;
    font-weight: bold;
    margin-bottom: 0.3em;
    font-size: var(--font-label);
}

.story-input-wrapper input {
    padding: 0.5em;
    width: 100%;
    max-width: 400px;
    font-size: var(--font-story-input);
    background: var(--container-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.subcategory-header {
    padding: 12px 16px;
    background: var(--item-header-bg);
    border-radius: 6px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    font-size: var(--font-subcategory);
}

.subcategory-header:hover {
    filter: brightness(1.1);
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.subcategory-header::after {
    content: '▼';
    font-size: 0.8em;
    opacity: 0.5;
    transition: transform 0.3s ease;
}

.subcategory-header.is-open::after {
    transform: rotate(180deg);
}

.subcategory-content {
    padding-left: 1rem;
}

.option-requirements,
.story-block,
.option-description,
.dynamic-choice-wrapper label,
label,
div {
    word-break: normal;
    overflow-wrap: break-word;
    white-space: normal;
}

.option-requirements {
    word-break: keep-all;
    overflow-wrap: break-word;
}

#pointsDisplay {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
    line-height: 1.6;
}

#pointsDisplay span {
    white-space: nowrap;
    font-size: var(--font-points-value);
}

/* CYOA Selection Styles */
.cyoa-list {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cyoa-item {
    background: var(--item-bg);
    padding: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    border: 1px solid var(--border-color);
    font-weight: bold;
    color: var(--text-color);
    text-align: center;
}

.cyoa-item:hover {
    background: var(--item-header-bg);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

.cyoa-item:active {
    transform: translateY(0);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--container-bg);
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px var(--shadow-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    background-color: var(--item-header-bg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .theme-toggle {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}

/* Backpack Styles */
#backpackBtn {
    display: none;
}

#backpackModal {
    align-items: center;
    justify-content: center;
}

#backpackModal .modal-content {
    margin: 0;
    max-height: 90vh;
}

#backpackModalContent {
    display: flex;
    flex-direction: column;
    max-height: 80vh;
    overflow: hidden;
}

#backpackContent {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.backpack-category {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.backpack-category:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.backpack-category-title {
    font-size: var(--font-accordion);
    font-weight: bold;
    margin-bottom: 16px;
    color: var(--text-color);
}

.backpack-grid {
    display: grid;
    grid-template-columns: repeat(var(--backpack-columns, 2), 1fr);
    gap: 16px;
    width: 100%;
}

.backpack-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 12px;
}

.backpack-item-image {
    width: 100%;
    max-width: 150px;
    aspect-ratio: 16/9;
    object-fit: contain;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    border: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.backpack-item-label {
    font-weight: bold;
    font-size: var(--font-label);
    color: var(--text-color);
}

.dynamic-choice-wrapper label,
.slider-wrapper label {
    font-size: var(--font-label);
}

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

.asset-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.65);
}

.asset-loading-overlay.is-visible {
    display: flex;
}

.asset-loading-card {
    width: min(560px, 100%);
    background: var(--container-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 16px 40px var(--shadow-color);
    padding: 20px;
}

.asset-loading-card h3 {
    margin: 0 0 10px;
    font-size: var(--font-accordion);
}

.asset-loading-card p {
    margin: 0 0 14px;
    color: var(--text-muted);
    font-size: var(--font-description);
}

.asset-loading-progress-track {
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: var(--item-bg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.asset-loading-progress-bar {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, #22c55e, #06b6d4);
    transition: width 0.18s ease-out;
}

.asset-loading-percent {
    margin-top: 10px;
    text-align: right;
    font-weight: 700;
    font-size: var(--font-label);
    color: var(--text-color);
}