body {
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    font-family: Roboto, 'Noto Sans JP', 'Noto Sans KR', 'Noto Sans SC', 'Noto Sans Symbols', 'Noto Color Emoji', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    display: block; /* Override style.css if it was loaded, but we don't load it in index.html */
    height: auto;
    overflow-y: auto;
}

#landing-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--md-sys-spacing-2);
}

.landing-header {
    padding: var(--md-sys-spacing-4) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-2);
}

.app-icon {
    width: 48px;
    height: 48px;
}

h1 {
    font-size: var(--md-sys-typescale-headline-large-size);
    font-weight: 700;
    margin: 0;
    color: var(--md-sys-color-primary);
}

.display-large {
    font-size: var(--md-sys-typescale-display-large-size);
    line-height: var(--md-sys-typescale-display-large-line-height);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--md-sys-spacing-3);
    color: var(--md-sys-color-on-background);
}

.headline-medium {
    font-size: var(--md-sys-typescale-headline-large-size);
    margin-bottom: var(--md-sys-spacing-3);
    color: var(--md-sys-color-primary);
    border-left: 4px solid var(--md-sys-color-primary);
    padding-left: var(--md-sys-spacing-2);
}

.body-large {
    font-size: var(--md-sys-typescale-body-large-size);
    margin-bottom: var(--md-sys-spacing-4);
    color: var(--md-sys-color-on-surface-variant);
}

.cta-buttons {
    display: flex;
    gap: var(--md-sys-spacing-2);
    margin-bottom: var(--md-sys-spacing-6);
    position: relative;
    align-items: center;
}

.btn-store {
    display: inline-block;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-store:hover {
    transform: scale(1.05);
}

.store-badge {
    height: 48px;
    display: block;
}

.download-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--md-sys-color-surface-container);
    min-width: 220px;
    box-shadow: var(--md-sys-elevation-2);
    border-radius: var(--md-sys-shape-medium);
    z-index: 100;
    margin-top: 4px;
    overflow: hidden;
}

.dropdown-content a {
    color: var(--md-sys-color-on-surface);
    padding: var(--md-sys-spacing-1-5) var(--md-sys-spacing-2);
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
}

.dropdown-content a:hover {
    background-color: var(--md-sys-color-surface-variant);
}

.dropdown-group-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--md-sys-color-secondary);
    padding: 8px 16px 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-dropdown.show .dropdown-content {
    display: block;
}

.btn-secondary .material-symbols-outlined {
    vertical-align: middle;
    font-size: 20px;
}

.btn-secondary span {
    vertical-align: middle;
}

.btn-primary,
.btn-secondary,
.btn-tertiary,
.btn-google-form {
    padding: var(--md-sys-spacing-1-5) var(--md-sys-spacing-3);
    border-radius: var(--md-sys-shape-full);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--md-sys-typescale-label-large-size);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    gap: 8px;
}

.btn-primary {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

.btn-secondary {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.btn-tertiary {
    background-color: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
}

.btn-google-form {
    background-color: #7248b9;
    color: #fff;
}

.btn-primary:hover {
    box-shadow: var(--md-sys-elevation-2);
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.btn-secondary:hover {
    box-shadow: var(--md-sys-elevation-1);
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.btn-tertiary:hover {
    box-shadow: var(--md-sys-elevation-1);
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.btn-google-form:hover {
    box-shadow: var(--md-sys-elevation-1);
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.card {
    background-color: var(--md-sys-color-surface-container-low);
    padding: var(--md-sys-spacing-4);
    border-radius: var(--md-sys-shape-large);
    margin-bottom: var(--md-sys-spacing-6);
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--md-sys-spacing-2);
}

.policy-item {
    text-align: center;
    padding: var(--md-sys-spacing-2);
}

.browser-support-icons {
    display: flex;
    justify-content: center;
    gap: var(--md-sys-spacing-2);
    margin-bottom: var(--md-sys-spacing-2);
}

.browser-support-icons img {
    width: 32px;
    height: 32px;
    opacity: 0.8;
    filter: grayscale(0.2);
    transition: all 0.2s ease;
}

.browser-support-icons img:hover {
    opacity: 1;
    filter: grayscale(0);
    transform: scale(1.1);
}

.icon-large {
    font-size: 40px !important;
    color: var(--md-sys-color-tertiary);
    margin-bottom: var(--md-sys-spacing-1);
}

.policy-item h4 {
    margin: var(--md-sys-spacing-1) 0;
    font-size: var(--md-sys-typescale-title-large-size);
}

.policy-item p {
    font-size: 0.875rem;
    color: var(--md-sys-color-on-surface-variant);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    gap: var(--md-sys-spacing-2);
    margin-bottom: var(--md-sys-spacing-3);
    align-items: flex-start;
}

.feature-list .material-symbols-outlined {
    font-size: 32px;
    color: var(--md-sys-color-primary);
    margin-top: 4px;
}

.feature-list h4 {
    margin: 0 0 4px;
    font-size: var(--md-sys-typescale-title-large-size);
}

.feature-list p {
    margin: 0;
    color: var(--md-sys-color-on-surface-variant);
}

.setup-content {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-3);
    margin-bottom: var(--md-sys-spacing-6);
}

.setup-tabs {
    display: flex;
    gap: var(--md-sys-spacing-1);
    margin-bottom: var(--md-sys-spacing-2);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.setup-tab-btn {
    padding: var(--md-sys-spacing-1) var(--md-sys-spacing-2);
    border: none;
    background: none;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    font-weight: 500;
    border-bottom: 2px solid transparent;
}

.setup-tab-btn.active {
    color: var(--md-sys-color-primary);
    border-bottom-color: var(--md-sys-color-primary);
}

.hidden {
    display: none !important;
}

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

.modal-content {
    background-color: var(--md-sys-color-surface-container);
    border-radius: var(--md-sys-shape-large);
    width: 90%;
    max-width: 450px;
    height: 80vh; /* Set a substantial height */
    max-height: 800px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--md-sys-elevation-3);
}

.modal-header {
    padding: var(--md-sys-spacing-2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.modal-header h3 {
    margin: 0;
    font-size: var(--md-sys-typescale-title-medium-size);
}

.close-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
}

.preview-body {
    flex: 1;
    overflow: hidden;
}

.preview-iframe {
    width: 100%;
    height: 100%;
}

.modal-footer {
    padding: var(--md-sys-spacing-1-5);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    text-align: center;
}

.modal-footer p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--md-sys-color-on-surface-variant);
}

.setup-step h4 {
    margin-bottom: var(--md-sys-spacing-1);
    color: var(--md-sys-color-secondary);
}

.setup-step ol {
    padding-left: var(--md-sys-spacing-3);
}

.setup-step li {
    margin-bottom: var(--md-sys-spacing-1);
}

.note {
    font-size: 0.8125rem;
    color: var(--md-sys-color-on-surface-variant);
    font-style: italic;
}

.faq-section {
    margin-bottom: var(--md-sys-spacing-8);
}

#cta-studio-link {
    display: inline-block;
}

.scene-section.card {
    margin-top: var(--md-sys-spacing-8);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--md-sys-spacing-3);
}

.faq-item h4 {
    margin-bottom: var(--md-sys-spacing-0-5);
    color: var(--md-sys-color-on-surface);
}

.faq-item p {
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
}

.scene-section {
    text-align: center;
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.icon-extra-large {
    font-size: 64px !important;
    margin-bottom: var(--md-sys-spacing-2);
}

.scene-section h3 {
    margin-bottom: var(--md-sys-spacing-2);
}

.scene-desc-text {
    white-space: pre-line;
}

.landing-footer {
    text-align: center;
    padding: var(--md-sys-spacing-6) 0;
    border-top: 1px solid var(--md-sys-color-outline-variant);
    color: var(--md-sys-color-on-surface-variant);
    font-size: 0.875rem;
}

.disclaimer-footer {
    margin-top: var(--md-sys-spacing-1);
    font-size: 0.75rem;
    line-height: 1.4;
}

code {
    background-color: var(--md-sys-color-surface-variant);
    padding: 2px 4px;
    border-radius: 4px;
    font-family: 'Roboto Mono', monospace;
}

button, input, select, textarea {
    font-family: inherit;
}

.internal-link {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.internal-link:hover {
    text-decoration: underline;
}

.internal-link .material-symbols-outlined {
    font-size: 16px;
}

.lang-switcher {
    display: flex;
    gap: 8px;
}

.lang-select {
    padding: 6px 12px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 20px;
    background-color: var(--md-sys-color-surface-container-low);
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24'%3E%3Cpath d='M480-345 240-585l56-56 184 184 184-184 56 56-240 240Z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 32px;
}

.lang-select:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.lang-select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
}

@media (width <= 600px) {
    .display-large {
        font-size: 2.5rem;
        line-height: 1.2;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        text-align: center;
        width: 100%;
        box-sizing: border-box;
    }

    .store-badge {
        height: 40px;
    }
}