.nexus-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--nexus-font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nexus-btn:hover:not(:disabled),
.nexus-btn:focus:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 255, 153, 0.4);
    color: var(--nexus-neon);
    box-shadow: 0 0 15px rgba(0, 255, 153, 0.3);
    outline: none;
    transform: translateY(-1px);
}

.nexus-btn:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
}

.nexus-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(1);
}