.app-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.theme-toggle {
    flex: 0 0 auto;
    border: 1px solid #d6d0ca;
    border-radius: 30px;
    background: transparent;
    color: #4a4038;
    padding: 7px 13px;
    font: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.theme-toggle:hover {
    background: #f5f0eb;
    border-color: #b0a69c;
}

body[data-theme="dark"] {
    background: #171615;
    color: #eeeae6;
}

body[data-theme="dark"] .app {
    background: #23211f;
    border-color: #393531;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.24), 0 2px 8px rgba(0, 0, 0, 0.12);
}

body[data-theme="dark"] .app-header,
body[data-theme="dark"] .settings,
body[data-theme="dark"] .app-footer {
    border-color: #393531;
}

body[data-theme="dark"] .app-header h1,
body[data-theme="dark"] .drop-zone .drop-title,
body[data-theme="dark"] .preview-area .preview-info .name,
body[data-theme="dark"] .platform-selector .label-group,
body[data-theme="dark"] .zip-name-input,
body[data-theme="dark"] .progress-label .count {
    color: #eeeae6;
}

body[data-theme="dark"] .app-header p,
body[data-theme="dark"] .app-header h1 span,
body[data-theme="dark"] .drop-zone .drop-icon,
body[data-theme="dark"] .drop-zone .drop-hint,
body[data-theme="dark"] .preview-area .preview-info .dims,
body[data-theme="dark"] .progress-label,
body[data-theme="dark"] .platform-selector .label-group .platform-tag {
    color: #aaa198;
}

body[data-theme="dark"] .drop-zone {
    background: #282522;
    border-color: #514b44;
}

body[data-theme="dark"] .drop-zone:hover,
body[data-theme="dark"] .drop-zone.dragover {
    background: #302c28;
    border-color: #8c8074;
}

body[data-theme="dark"] .drop-zone .drop-hint .tag,
body[data-theme="dark"] .preview-area .preview-status,
body[data-theme="dark"] .platform-selector .label-group .count-badge,
body[data-theme="dark"] .progress-bar-bg {
    background: #393531;
    color: #d4cbc1;
}

body[data-theme="dark"] .preview-area,
body[data-theme="dark"] .bg-controls {
    background: #282522;
    border-color: #393531;
}

body[data-theme="dark"] .preview-area .preview-img-wrap,
body[data-theme="dark"] .bg-controls input[type="color"],
body[data-theme="dark"] .bg-controls .color-hex,
body[data-theme="dark"] .bg-controls .quick-btn,
body[data-theme="dark"] .zip-name-input,
body[data-theme="dark"] .zip-name-input:focus {
    background: #201e1c;
    border-color: #514b44;
    color: #eeeae6;
}

body[data-theme="dark"] .setting-group .group-label,
body[data-theme="dark"] .bg-controls .transparent-toggle {
    color: #d4cbc1;
}

body[data-theme="dark"] .bg-controls .quick-btn:hover,
body[data-theme="dark"] .bg-controls .transparent-toggle:hover,
body[data-theme="dark"] .platform-selector .label-group:hover,
body[data-theme="dark"] .btn-outline:hover:not(:disabled),
body[data-theme="dark"] .theme-toggle:hover {
    background: #393531;
}

body[data-theme="dark"] .bg-controls .quick-btn.active {
    background: #514b44;
    border-color: #8c8074;
}

body[data-theme="dark"] .bg-controls .transparent-toggle input[type="checkbox"],
body[data-theme="dark"] .platform-selector .label-group input[type="checkbox"] {
    accent-color: #c0aa92;
}

body[data-theme="dark"] .btn-primary {
    background: #eeeae6;
    color: #201e1c;
}

body[data-theme="dark"] .btn-primary:hover:not(:disabled) {
    background: #d4cbc1;
}

body[data-theme="dark"] .btn-primary.generating {
    background: #aaa198;
}

body[data-theme="dark"] .btn-outline,
body[data-theme="dark"] .theme-toggle {
    color: #eeeae6;
    border-color: #514b44;
}

body[data-theme="dark"] .progress-bar-fill {
    background: #eeeae6;
}

body[data-theme="dark"] .status,
body[data-theme="dark"] .status.info {
    background: #393531;
    color: #d4cbc1;
}

body[data-theme="dark"] .status.error {
    background: #442c28;
    color: #f0b6a6;
}

body[data-theme="dark"] .status.success {
    background: #263b2c;
    color: #b7d8bd;
}

body[data-theme="dark"] .preview-area .preview-status.warning {
    background: #45372a;
    color: #e2c29b;
}

body[data-theme="dark"] .app-footer {
    color: #8c8074;
}

@media (max-width: 480px) {
    .app-header {
        align-items: center;
    }

    .theme-toggle {
        padding: 6px 10px;
    }
}