.settings-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.settings-section {
    margin-bottom: 32px;
}

.settings-section-title {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.settings-section-title::before {
    content: '';
    width: 3px;
    height: 12px;
    background: var(--accent-primary);
    flex-shrink: 0;
}

.settings-toggle-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.settings-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: border-color var(--transition);
}

.settings-toggle:hover {
    border-color: var(--border-strong);
}

.settings-toggle-icon {
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    font-size: 0.95rem;
}

.settings-toggle-body {
    flex: 1;
    min-width: 0;
}

.settings-toggle-name {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 3px;
}

.settings-toggle-desc {
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.5;
}

.toggle-switch {
    flex: 0 0 auto;
    position: relative;
    width: 52px;
    height: 28px;
    background: var(--bg-deep);
    border: 1px solid var(--border-strong);
    cursor: pointer;
    transition: all var(--transition);
    touch-action: manipulation;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: var(--text-dim);
    transition: all var(--transition);
}

.toggle-switch.active {
    background: rgba(184, 67, 74, 0.2);
    border-color: var(--accent-primary);
}

.toggle-switch.active::after {
    background: var(--accent-primary);
    transform: translateX(24px);
}

.toggle-switch:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.theme-presets {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.theme-preset {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.theme-preset:hover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.theme-preset.active {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.theme-preset.active::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 10px;
    right: 12px;
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.theme-preview {
    height: 60px;
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    position: relative;
    overflow: hidden;
}

.theme-preview-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.theme-preview-swatch {
    position: relative;
    z-index: 1;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.theme-preset-name {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-primary);
    font-weight: 700;
}

.theme-preset-desc {
    font-size: 0.72rem;
    color: var(--text-dim);
    margin-top: 4px;
    line-height: 1.4;
}

.color-controls {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.color-control {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.color-control-input {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    padding: 3px;
    border: 1px solid var(--border-strong);
    background: var(--bg-deep);
    cursor: pointer;
}

.color-control-label {
    flex: 1;
    min-width: 0;
}

.color-control-name {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 2px;
}

.color-control-var {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.settings-toast {
    position: fixed;
    bottom: calc(24px + var(--safe-bottom, 0px));
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-primary);
    border-left-width: 4px;
    color: var(--text-primary);
    padding: 12px 20px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 1px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 10000;
    pointer-events: none;
    max-width: calc(100% - 32px);
}

.settings-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 600px) {
    .theme-presets {
        grid-template-columns: 1fr;
    }

    .color-controls {
        grid-template-columns: 1fr;
    }

    .settings-toggle {
        padding: 14px;
        gap: 12px;
    }

    .settings-toggle-icon {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }

    .toggle-switch {
        width: 46px;
        height: 26px;
    }

    .toggle-switch::after {
        width: 18px;
        height: 18px;
    }

    .toggle-switch.active::after {
        transform: translateX(20px);
    }
}