:root {
    --card-bg: #ffffff;
    --text-main: #1a253c;
    --text-muted: #5a6e85;
    --accent-apple: #000000;
    --accent-android: #3ddc84;
}

/* Tabstructuur voor OS */
.tabs {
    display: flex;
    background: #e4e8f0;
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--card-bg);
    color: var(--text-main);
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

/* Instructie Containers */
.instruction-content {
    display: none;
}

.instruction-content.active {
    display: block;
}

.step-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    background: #f0f3f8;
    color: var(--text-main);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-main);
    margin-top: 3px;
}

/* Icoontjes in de tekst en op de knoppen */
.step-text i {
    background: #f0f3f8;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.9rem;
    margin: 0 2px;
}

.apple-icon { color: var(--accent-apple); }
.android-icon { color: var(--accent-android); }