.onb-overlay {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(5, 10, 22, 0.85);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.onb-overlay.onb-visible { opacity: 1; }
.onb-overlay.hidden { display: none; }

.onb-modal {
    position: relative;
    width: 100%;
    max-width: 380px;
    padding: 30px 22px 22px;
    border-radius: 22px;
    background: linear-gradient(160deg, rgba(20, 28, 48, 0.98), rgba(10, 15, 30, 0.98));
    border: 1px solid rgba(139, 92, 246, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(139, 92, 246, 0.15);
    transform: translateY(12px) scale(0.98);
    transition: transform 0.3s ease;
}

.onb-overlay.onb-visible .onb-modal { transform: translateY(0) scale(1); }

.onb-skip {
    position: absolute;
    top: 14px;
    right: 16px;
    z-index: 2;
    background: none;
    border: none;
    color: var(--c-text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: color 0.2s;
}

.onb-skip:hover { color: white; }
.onb-viewport { overflow: hidden; width: 100%; }
.onb-track { display: flex; transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); }

.onb-slide {
    min-width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 14px 6px 6px;
}

.onb-icon {
    width: 84px;
    height: 84px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 2.2rem;
    color: white;
    background: linear-gradient(135deg, #8b5cf6, #3b82f6, #10b981);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.4);
}

.onb-title {
    margin: 0 0 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: white;
}

.onb-text {
    margin: 0;
    min-height: 84px;
    font-size: 0.85rem;
    line-height: 1.55;
    color: var(--c-text-sec);
}

.onb-text b { color: #a78bfa; font-weight: 700; }

.onb-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 18px 0 20px;
}

.onb-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    cursor: pointer;
    transition: all 0.25s;
}

.onb-dot.active {
    width: 22px;
    border-radius: 4px;
    background: #a78bfa;
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.6);
}

.onb-actions { display: flex; gap: 12px; align-items: center; }

.onb-btn {
    flex: 1;
    padding: 13px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: white;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    transition: all 0.2s;
}

.onb-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 18px rgba(139, 92, 246, 0.5);
}

.onb-btn.ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--c-text-sec);
}

.onb-btn.ghost:hover {
    border-color: #a78bfa;
    color: white;
    box-shadow: none;
}